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16556 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Greg Kroah-Hartman
|
a5339effdd |
Merge 7.2-rc5 into tty-next
We need the serial driver fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Greg Kroah-Hartman
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5d5fd841c3 |
Merge 7.2-rc5 into usb-next
We need the USB fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Dave Airlie
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15dcf7609f |
drm/nouveau: allow allocating NVDEC channels via abi16
Add NOUVEAU_FIFO_ENGINE_NVDEC to the abi16 uAPI and accept it in channel allocation, mapping it to the NVDEC engine runlist. Skip the Turing copy-engine workaround object for NVDEC channels: the copy engines are not part of the NVDEC runlist, so the workaround object cannot be instantiated on such channels (and is not needed there). This is required for NVK to implement Vulkan Video H.264 decode on top of the NVDEC engine: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31867 Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Link: https://patch.msgid.link/20260725035912.1016464-1-daniel.almeida@collabora.com |
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Jiri Pirko
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601f3fd97d |
RDMA/nldev: Allow setting the device name while changing net namespace
Accept RDMA_NLDEV_ATTR_DEV_NAME together with RDMA_NLDEV_NET_NS_FD so a netlink move can rename the device in the destination namespace. Keep the name semantics aligned with the existing RDMA rename path. Signed-off-by: Jiri Pirko <jiri@nvidia.com> Link: https://patch.msgid.link/20260716132316.1495242-6-jiri@resnulli.us Signed-off-by: Leon Romanovsky <leon@kernel.org> |
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Eduard Zingerman
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4748a67f71 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf 7.2-rc5
Cross-merge BPF and other fixes after downstream PR. Conflicts: net/core/filter.c Changes [2] in bpf-next conflict with a recent fix [1] from the 'net' tree. Resolved by using [1] as a base and applying same flags handling logic as in [2] in the bpf_redirect_peer() helper. [1] https://lore.kernel.org/all/20260706185609.330006-2-daniel@iogearbox.net/ [2] https://lore.kernel.org/all/20260618182035.43811-2-jordan@jrife.io/ Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> |
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Linus Torvalds
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73387b89d9 |
io_uring-7.2-20260724
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Randy Dunlap
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9b0ee13b80
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capability: remove non-kernel-doc comments
Convert 2 "/**" comments to use plain C "/*" comment style to avoid kernel-doc warnings: Warning: include/uapi/linux/capability.h:114 expecting prototype for POSIX(). Prototype was for CAP_CHOWN() instead Warning: include/uapi/linux/capability.h:175 expecting prototype for Linux(). Prototype was for CAP_SETPCAP() instead Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Reviewed-by: Paul Moore <paul@paul-moore.com> Signed-off-by: Serge Hallyn <sergeh@kernel.org> |
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Jakub Kicinski
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89d8006259 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-7.2-rc5). Conflicts: drivers/net/amt.c |
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Jiri Pirko
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aac287f4f1 |
RDMA/mlx5: Use UMEM attribute for SRQ doorbell record
Add an optional mlx5 driver-namespace UMEM attribute on SRQ create so userspace can supply the doorbell record umem explicitly, symmetric to the CQ and QP sides. Resolve it inside mlx5_ib_db_map_user() and use it as a private DBR page when present; otherwise take the existing UHW share-or-pin path that preserves per-page DBR sharing across CQ/QP/SRQ in the same process. Add mlx5's first UVERBS_OBJECT_SRQ UAPI definition chain to attach the new attr. Signed-off-by: Jiri Pirko <jiri@nvidia.com> Link: https://patch.msgid.link/20260701124015.64350-4-jiri@resnulli.us Signed-off-by: Leon Romanovsky <leon@kernel.org> |
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Jiri Pirko
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fe34dc1fa0 |
RDMA/uverbs: Add SRQ buffer UMEM attribute
Apply the per-attribute UMEM model to the SRQ create method. Add an optional UMEM attribute that backs the SRQ WQE buffer, so userspace can supply it as either a VA or a dma-buf through a single descriptor, consistent with the CQ and QP create methods. mlx5 is the only driver that pins an SRQ WQE buffer via umem; it maps a single ucmd->buf_addr region through this attribute. No other driver implements a user SRQ buffer, so none of them use the attribute. Signed-off-by: Jiri Pirko <jiri@nvidia.com> Link: https://patch.msgid.link/20260701124015.64350-2-jiri@resnulli.us Signed-off-by: Leon Romanovsky <leon@kernel.org> |
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Konstantin Taranov
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1773ca1a89 |
RDMA/mana_ib: return PD number to the user
Implement returning to userspace applications PDNs of created PDs. The PDN is used by applications that build work requests outside of the rdma-core code base. The PDN is used to build work requests that require mentioning the PD. The HW still ensures PD isolation using PDN attached to MRs and WRs, therefore the PDN mentioned in the work request must match the PDN of the used work queue. The work requests can fit only 16 bit PDNs. Allow users to request short PDNs which are 16 bits. The capability to request short PDN and get PDN is encoded in the response of alloc user context IOCTL. Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com> Link: https://patch.msgid.link/20260717200839.495327-1-kotaranov@linux.microsoft.com Signed-off-by: Leon Romanovsky <leon@kernel.org> |
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Yonatan Nachum
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524381ef28 |
RDMA/efa: Expose 64-bit send WR ID support to userspace
Currently EFA WRs support 16-bit request ID, this requires EFA to manage a translation table to translate the IB WR ID from 64-bits to 16-bits and translating it back on CQ completion. Expose a new device capability to handle 64-bit request ID for SQ WRs allowing userspace to directly post the 64-bit ID to the device. Reviewed-by: Michael Margolin <mrgolin@amazon.com> Reviewed-by: Tom Sela <tomsela@amazon.com> Signed-off-by: Yonatan Nachum <ynachum@amazon.com> Link: https://patch.msgid.link/20260722113331.2515247-3-ynachum@amazon.com Signed-off-by: Leon Romanovsky <leon@kernel.org> |
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Yonatan Nachum
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e5e8706dca |
RDMA/efa: Add CQ/QP creation with 64-bit SQ req ID support
Add the support needed to propagate the user requested flags to config the CQ/QP to support 64-bit SQ request ID to the device. Reviewed-by: Michael Margolin <mrgolin@amazon.com> Reviewed-by: Tom Sela <tomsela@amazon.com> Signed-off-by: Yonatan Nachum <ynachum@amazon.com> Link: https://patch.msgid.link/20260722113331.2515247-2-ynachum@amazon.com Signed-off-by: Leon Romanovsky <leon@kernel.org> |
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Pavel Begunkov
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e366c15e16 |
io_uring/zcrx: rename notif to event
"Notification" is too long and the abbreviated version is used in several places, which is inconsistent and more ambiguous for users. Rename it to event, which is easier to keep consistent. To keep the change small, only change uapi/ + do necessary fix ups, and the rest of internals can be adjusted in the next release. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://patch.msgid.link/f95ca6717da3c8d3649a1a7f0d883a563f545052.1784726895.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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Pavel Begunkov
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201e308102 |
io_uring/zcrx: rename ZCRX_NOTIF_NO_BUFFERS
ZCRX_NOTIF_NO_BUFFERS tells when page pool fails to allocate memory from zcrx. "No buffers" could be more confusing, rename it to ZCRX_NOTIF_ALLOC_FAIL. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://patch.msgid.link/29bd4fc069bc89691868beba0627ffbe570c2722.1784726895.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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Pavel Begunkov
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af78c00204 |
io_uring/zcrx: drop "notif" from stats struct names
Keep zcrx statistics generic and don't stick "notif" to its uapi definitions. Stats dosn't need to be bound to notification details, it makes it cleaner and more readable. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://patch.msgid.link/6a39676b6f71b67d3f89c6ebab7a3739873834a3.1784726895.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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Andrea Mayer
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ffdc1ee2d6 |
seg6: add FIB table attribute for post-encap SID route lookup
After SRv6 encapsulation the kernel looks up the route for the first SID,
that is the outer IPv6 destination of the encapsulated packet. This
post-encap SID route lookup uses the FIB table of the current routing
context. When the encap route is installed in a VRF, the VRF's table may
not have a route matching the SID. In that case another table should
handle it, e.g. one configured for underlay connectivity.
Add an optional SEG6_IPTUNNEL_TABLE attribute that selects the FIB table
used for this lookup. When set by the user, the attribute is honored on
both the input path (forwarded traffic) and the output path (locally
originated traffic). SRv6 encap routes that do not set the attribute use
the current routing context, as before.
For example:
# SID route installed in the underlay table 500
ip -6 route add fc00::100/128 via fd00::1 dev veth0 table 500
# encap route in vrf-100; the first SID is looked up in table 500
ip -6 route add cafe::1/128 vrf vrf-100 \
encap seg6 mode encap segs fc00::100 lookup 500 dev veth0
# or look up the SID in the main table
ip -6 route add cafe::1/128 vrf vrf-100 \
encap seg6 mode encap segs fc00::100 lookup main dev veth0
Suggested-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: Andrea Mayer <andrea.mayer@uniroma2.it>
Reviewed-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20260711162907.6521-2-andrea.mayer@uniroma2.it
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Michael Margolin
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0e8e94c150 |
RDMA/efa: Add Completion Counters support
Implement completion counters for the EFA device. Each completion counter is backed by two EFA event counters, one for success completions and one for error completions. The driver creates umem for counters from private descriptor ioctl attributes using core utility. Read operations are not implemented as the counter values are accessed directly from userspace through the mapped memory. Reviewed-by: Yonatan Nachum <ynachum@amazon.com> Signed-off-by: Michael Margolin <mrgolin@amazon.com> Link: https://patch.msgid.link/20260722083603.30334-7-mrgolin@amazon.com Signed-off-by: Leon Romanovsky <leon@kernel.org> |
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Michael Margolin
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c1c13e596f |
RDMA/core: Expose Completion Counter capabilities to userspace
Add a dedicated query interface for completion counter capabilities via UVERBS_METHOD_QUERY_COMP_CNTR_CAPS on the device object. The query returns the maximum number of counters, maximum counter value, and a bitmask of supported QP attach operations. Each field is an optional ioctl attribute, allowing userspace to request only the capabilities it needs. Drivers implement the query_comp_cntr_caps operation to report device-specific capabilities. Reviewed-by: Yonatan Nachum <ynachum@amazon.com> Signed-off-by: Michael Margolin <mrgolin@amazon.com> Link: https://patch.msgid.link/20260722083603.30334-4-mrgolin@amazon.com Signed-off-by: Leon Romanovsky <leon@kernel.org> |
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Michael Margolin
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b3818ea4ad |
RDMA/core: Add Completion Counters support
Add core infrastructure for Completion Counters, a light-weight alternative to polling CQ for tracking operation completions. Define the UVERBS_OBJECT_COMP_CNTR ioctl object with create, destroy, modify and read methods for both success and error counters. Add a QP attach method on the QP object to associate a completion counter with a queue pair. Add ib_comp_cntr struct, ib_comp_cntr_attach_attr, device ops, and DECLARE_RDMA_OBJ_SIZE for driver object allocation. Only userspace Completion Counters are supported at this stage. Reviewed-by: Yonatan Nachum <ynachum@amazon.com> Signed-off-by: Michael Margolin <mrgolin@amazon.com> Link: https://patch.msgid.link/20260722083603.30334-2-mrgolin@amazon.com Signed-off-by: Leon Romanovsky <leon@kernel.org> |
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Abhijit Gangurde
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63d6c2d10c |
RDMA/mlx5: move mlx5 clock info to common struct ib_uverbs_clock_info
Use struct ib_uverbs_clock_info from ib_user_verbs.h for clock info. Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Link: https://patch.msgid.link/20260610154216.712374-6-abhijit.gangurde@amd.com Signed-off-by: Leon Romanovsky <leon@kernel.org> |
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Abhijit Gangurde
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7462d18889 |
RDMA/ionic: map PHC state into user space
Enable user space applications to access the PHC state page when firmware RDMA completion timestamp is supported. This mapping allows user space to convert RDMA completion timestamps to system wall time without kernel transitions, minimizing latency overhead. Applications can directly read the PHC state through mmap, enabling efficient timestamp correlation for precision timing applications. Co-developed-by: Allen Hubbe <allen.hubbe@amd.com> Signed-off-by: Allen Hubbe <allen.hubbe@amd.com> Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Link: https://patch.msgid.link/20260610154216.712374-4-abhijit.gangurde@amd.com Signed-off-by: Leon Romanovsky <leon@kernel.org> |
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Abhijit Gangurde
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02e643e22a |
net: ionic: Add PHC state page for user space access
Add a page associated with the PHC that can be mapped to user space,
allowing applications to access hardware timestamp information.
In order to synchronize between kernel and user space, a sequence
number is incremented at the beginning and end of each update.
An odd number means the data is being updated while an even number
means the update is complete. To guarantee that the data structure
was accessed atomically, user space will:
repeat:
seq1 = <read sequence>
goto <repeat> if odd
<read PHC state>
seq2 = <read sequence>
if seq1 != seq2 goto repeat
This mechanism acts as a guard against reading invalid state during
concurrent updates.
Co-developed-by: Allen Hubbe <allen.hubbe@amd.com>
Signed-off-by: Allen Hubbe <allen.hubbe@amd.com>
Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com>
Link: https://patch.msgid.link/20260610154216.712374-3-abhijit.gangurde@amd.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Linus Torvalds
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51f247c4b2 |
for-7.2-rc4-tag
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Merge tag 'for-7.2-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
"I'm catching up with the fix backlog in the development branch, so
here's a number of them and will probably send one more for this or
the next rc:
- relocation fixes:
- skip attempting compression on reloc inodes
- exclude inline extents from file extent offset checks
- fix minor memory leak after error when adding reloc root
- fix root cleanup after inserting and merging
- fix clearing folio tags after writeback
- clear logging flag of extent map before splitting
- fix unsigned 32/64 type conversions when accounting dirty metadata,
leading to continually exceeding threshold
- fix regression in 32bit compat ioctl for subvolume info
- fix type of SEARCH_TREE ioctl buffer in UAPI header
- fix expression in ASSERT expression which can be unconditionally
evaluated on some compilers
- only account delalloc bytes for regular inodes"
* tag 'for-7.2-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: fix GET_SUBVOL_INFO after compat refactor
btrfs: free mapping node on duplicate reloc root insert
btrfs: fix a regression where PAGECACHE_TAG_DIRTY is never cleared
btrfs: don't propagate EXTENT_FLAG_LOGGING to split extent maps
btrfs: fix u32 to s64 type conversion in dirty_metadata_bytes accounting
btrfs: fix NULL pointer deref during assertion in btrfs_backref_free_node()
btrfs: only account delalloc bytes for regular file inodes in btrfs_getattr()
btrfs: reject inline file extents item in get_new_location()
btrfs: do not try compression for data reloc inodes
btrfs: declare btrfs_ioctl_search_args_v2::buf as __u8
btrfs: fix reloc root cleanup in merge_reloc_roots()
btrfs: fix use-after-free on reloc root after error in insert_dirty_subvol()
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Eric Biggers
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fa1517bc99 |
fscrypt: Remove FSCRYPT_MODE_MAX
Now that the arrays of per-mode keys in struct fscrypt_master_key have been replaced by a linked list, the definition of FSCRYPT_MODE_MAX doesn't do anything useful. (Previously it was used to size these arrays.) Remove it. Link: https://patch.msgid.link/20260618231404.132829-1-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@kernel.org> |
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Konstantin Taranov
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eb70d83a86 |
RDMA/mana_ib: Adopt robust udata
Enable the uverbs robust udata interface in mana_ib by setting uverbs_robust_udata and converting the driver to the new udata handling model. Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> |
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Jacob Moroni
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173fc2b8dc |
RDMA/irdma: Use robust udata helper for QP creation
Replace the manual udata input copy and validation during QP creation with the robust helper. The irdma driver is backwards compatible with the legacy i40iw userspace provider. The current create_qp ABI contains two 8 byte fields. The legacy i40iw ABI was the same but also contained two additional fields which were never actually used. Furthermore, the i40iw userspace provider never explicitly zero-initialized those extra fields, so there is a chance that existing binaries are passing non-zero garbage values down to the kernel. Previously, the irdma driver only copied out the first 16 bytes and did not have any check for the rest of the buffer being zero, so that additional garbage didn't matter. By switching to ib_copy_validate_udata_in(), we will now be checking to ensure that data beyond the kernel's definition of the request is all zero. In order to avoid breaking legacy binaries, we therefore need to increase the request structure size to cover those garbage fields. - Legacy binaries will continue to pass down a 32 byte request, with the driver copying the entire 32 bytes out but ignoring the second 16 bytes, just as before. - Newer binaries will pass down the normal 16 byte request. The ib_copy_validate_udata_in() call will allow this to succeed because we use user_compl_ctx as our minimum length (16 bytes). - If the request is ever extended, the new fields would be added after the "don't use" fields and would work as per the normal uAPI mechanism. Signed-off-by: Jacob Moroni <jmoroni@google.com> Link: https://patch.msgid.link/20260713171257.3131493-5-jmoroni@google.com Signed-off-by: Leon Romanovsky <leon@kernel.org> |
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Prathima
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48ad55cda0 |
misc: amd-sbi: Add SBTSI ioctl register transfer interface
Implement IOCTL interface for SB-TSI driver to enable userspace access to TSI register read/write operations through the AMD Advanced Platform Management Link (APML) protocol. Add an ioctl command (SBTSI_IOCTL_REG_XFER_CMD) that accepts a register address, data byte, and direction flag. The mutex is taken on the ioctl path here; the hwmon path is placed under the same lock in the next patch, which completes serialization between the hwmon and ioctl paths. Reviewed-by: Akshay Gupta <Akshay.Gupta@amd.com> Signed-off-by: Prathima <Prathima.Lk@amd.com> Link: https://patch.msgid.link/20260710111642.850022-7-Akshay.Gupta@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Alexander Usyskin
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65f0ecb9ec |
issei: initial driver skeleton
The ISSEI (Intel Silicon Security Engine Interface) subsystem provides a communication channel between the host and the Silicon Security Engine. Prepare basic driver functions and character device for user-space communication. Add DMA access routines for ISSEI HECI devices. Add of DMA-related structures and implementation of routines for setting up DMA, as well as reading and writing DMA buffers. Reviewed-by: Karol Wachowski <karol.wachowski@linux.intel.com> Co-developed-by: Vitaly Lubart <lubvital@gmail.com> Signed-off-by: Vitaly Lubart <lubvital@gmail.com> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Link: https://patch.msgid.link/20260513-issei-for-upstream-v1-1-f590038678f9@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Siddaraju DH
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008f965fb4 |
ethtool: link 10000baseCR to SFF-8431, Appendix-E SFP+ DA
Add comment to clarify the physical media 10000baseCR follows. 10000baseCR does not correspond to any IEEE 802.3 *base-CR PMD. It has no autonegotiation, no link training, and no mandatory FEC. The industry standard for this media type is SFF-8431 Appendix-E Direct Attach cable, also known as 10G_SFI_DA. Link: https://lore.kernel.org/r/SN7PR11MB69003D33489DB1D6B17EF72A9AF52@SN7PR11MB6900.namprd11.prod.outlook.com Signed-off-by: Siddaraju DH <siddaraju.dh@intel.com> Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Link: https://patch.msgid.link/20260703100537.1109838-1-siddaraju.dh@intel.com Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
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Hans Verkuil
|
cba1728208 |
media: cec/core: add a new CEC_LOG_ADDRS_FL_CONFIG_FAILED flag
If claiming a logical address fails, then set the CEC_LOG_ADDRS_FL_CONFIG_FAILED flag. This makes it possible for userspace to detect this corner case. Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> |
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Jianlin Shi
|
f68df52fba
|
docs: bpf: Document BPF_RB_OVERWRITE_POS in bpf_ringbuf_query
BPF_RB_OVERWRITE_POS is supported by bpf_ringbuf_query() but was missing from the helper documentation. Add it to the flags list in both the kernel UAPI header and its tools/ mirror. Signed-off-by: Jianlin Shi <shijianlin11@foxmail.com> Acked-by: Xu Kuohai <xukuohai@huawei.com> Link: https://lore.kernel.org/bpf/tencent_22134645443B75ED907D2A85A47AD554A709@qq.com Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> |
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Avinash Duduskar
|
217828aad8
|
bpf: Add BPF_FIB_LOOKUP_VLAN_INPUT flag to bpf_fib_lookup() helper
BPF_FIB_LOOKUP_VLAN resolves a VLAN egress. The reverse is also useful: an XDP program receiving a VLAN-tagged frame on a physical device wants the lookup to behave as if the packet had arrived on the corresponding VLAN subinterface, so iif-based policy routing and VRF table selection use the right ingress. Add BPF_FIB_LOOKUP_VLAN_INPUT. When set, params->h_vlan_proto and params->h_vlan_TCI are read as an input VLAN tag and the matching VLAN device of params->ifindex is resolved with __vlan_find_dev_deep_rcu(). The device must be up and in the same network namespace as params->ifindex (a VLAN device can be moved to another netns while registered on its parent; receive would deliver into that other namespace, which a lookup here cannot represent). If params->ifindex is itself a VLAN device, its inner (QinQ) subinterface is matched. For a bond or team, a tag on a port matches no device and returns NOT_FWDED; pass the master's ifindex. The lookup then runs with the resolved device as the ingress; params->ifindex itself is not modified on the input side. When the resolved device is enslaved to a VRF, both the full lookup (via the l3mdev rule) and BPF_FIB_LOOKUP_DIRECT (via l3mdev_fib_table_rcu()) select the VRF's table from the resolved ingress. That follows from feeding the resolved device to the flow as the ingress (fl4.flowi4_iif = dev->ifindex), which is what makes l3mdev resolve the VRF master from the subinterface rather than from params->ifindex. The two failure classes get different treatment on purpose. A h_vlan_proto other than 802.1Q/802.1ad is API misuse and returns -EINVAL, since it would otherwise reach the WARN in vlan_proto_idx() with a program-controlled value. An unmatched VID, a device that is down, or one in another namespace is a data outcome and returns BPF_FIB_LKUP_RET_NOT_FWDED, matching the DIRECT path when fib_get_table() finds no table and mirroring real ingress, where the receive path drops such frames. A VID of 0 (a priority tag) is looked up literally and normally fails the same way; receive instead processes such frames untagged, so callers should not set the flag for priority tags. Proceeding on the physical device for any of these would be fail-open for the policy-routing cases above. The h_vlan fields share a union with tbid, so the flag cannot be combined with BPF_FIB_LOOKUP_TBID. It describes ingress, so it also cannot be combined with BPF_FIB_LOOKUP_OUTPUT. Both combinations return -EINVAL; restricting now keeps a later relaxation backward compatible. Combining with BPF_FIB_LOOKUP_VLAN is allowed: the tag is consumed on the ingress side and the egress tag is written on success. Under !CONFIG_VLAN_8021Q the __vlan_find_dev_deep_rcu() stub returns NULL, so every lookup with a valid proto returns NOT_FWDED, which is correct since no VLAN device can exist. Suggested-by: Toke Høiland-Jørgensen <toke@redhat.com> Signed-off-by: Avinash Duduskar <avinash.duduskar@gmail.com> Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com> Reviewed-by: Emil Tsalapatis <emil@etsalapatis.com> Link: https://lore.kernel.org/bpf/20260713162305.1237211-3-avinash.duduskar@gmail.com Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> |
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Avinash Duduskar
|
35dac1daeb
|
bpf: Add BPF_FIB_LOOKUP_VLAN flag to bpf_fib_lookup() helper
bpf_fib_lookup() returns the FIB-resolved egress ifindex straight from the fib result. When the egress is a VLAN device, the returned ifindex is the VLAN netdev's, which has no XDP xmit handler; XDP programs that want to forward the frame (e.g. xdp-forward) must instead target the underlying physical device and push the VLAN tag themselves. Today the program has no way to learn either the underlying ifindex or the VLAN tag without maintaining its own VLAN-to-ifindex map in userspace and refreshing it on netlink events. Add BPF_FIB_LOOKUP_VLAN. When the caller sets this flag and the fib result is a VLAN device whose immediate parent is a real (non-VLAN) device in the same network namespace, populate the existing output fields params->h_vlan_proto and params->h_vlan_TCI from the VLAN device and replace params->ifindex with the parent's ifindex. params->h_vlan_TCI carries the VID only, with PCP and DEI bits zero; a consumer wanting to set egress priority writes PCP itself. params->smac is the VLAN device's own address, which can differ from the parent's. Only the immediate parent is resolved, via vlan_dev_priv(dev)->real_dev and not vlan_dev_real_dev(), which walks to the bottom of a stack. When the immediate parent is not a real device in the same namespace, the lookup returns BPF_FIB_LKUP_RET_VLAN_FAILURE and leaves params->ifindex at the input. This covers a stacked VLAN (QinQ), where the immediate parent is itself a VLAN device and one h_vlan_proto/h_vlan_TCI pair cannot describe two tags, and a parent in another network namespace (a VLAN device can be moved while its parent stays), whose ifindex would be meaningless in the caller's namespace. A program that wants the VLAN device's own ifindex re-issues the lookup, with a re-initialized params, without BPF_FIB_LOOKUP_VLAN, so the unreducible case stays distinct from a physical egress. That distinction matters for XDP: a program cannot xmit on a VLAN device, so a success carrying the VLAN ifindex would make it redirect to a device with no ndo_xdp_xmit and drop the frame at xdp_do_flush(). The swap and the vlan fields are written only on the reduce path; other output fields keep their existing behaviour, so a frag-needed result still reports the route mtu in params->mtu_result. BPF_FIB_LOOKUP_VLAN is only useful to XDP, which cannot redirect to a VLAN device. A tc program can redirect to the VLAN device directly, so bpf_skb_fib_lookup() rejects the flag with -EINVAL; bpf_xdp_fib_lookup() accepts it. When the flag is not set, behaviour is unchanged: h_vlan_proto and h_vlan_TCI are zeroed and ifindex is left at the FIB result. The new block is compiled only under CONFIG_VLAN_8021Q since vlan_dev_priv() is not defined otherwise; without that config is_vlan_dev() is constant false and the flag is accepted but never acts. That is safe because no VLAN device can exist there, so every egress is already physical. This lets an XDP redirect target the physical device and learn the tag to push in a single lookup, which xdp-forward's optional VLAN mode (xdp-project/xdp-tools#504) wants from the kernel side. The helper's input semantics are unchanged; the reverse direction (supplying a tag as lookup input) is added in the following patch. Suggested-by: Toke Høiland-Jørgensen <toke@redhat.com> Signed-off-by: Avinash Duduskar <avinash.duduskar@gmail.com> Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com> Reviewed-by: Emil Tsalapatis <emil@etsalapatis.com> Acked-by: David Ahern <dsahern@kernel.org> Link: https://lore.kernel.org/bpf/20260713162305.1237211-2-avinash.duduskar@gmail.com Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> |
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Jacob Pan
|
60decab325 |
iommufd: Add an ioctl to query PA from IOVA for noiommu mode
To support no-IOMMU mode where userspace drivers perform unsafe DMA using physical addresses, introduce a new API to retrieve the physical address of a user-allocated DMA buffer that has been mapped to an IOVA via IOMMU_IOAS_MAP. The mapping is backed by SW-only I/O page tables maintained by the GENERIC_PT framework. Link: https://patch.msgid.link/r/a60a601509688e8552c75e668deb548c93974a3b.1783360051.git.jacob.pan@linux.microsoft.com Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Reviewed-by: Pranjal Shrivastava <praan@google.com> Reviewed-by: Yi Liu <yi.l.liu@intel.com> Suggested-by: Jason Gunthorpe <jgg@nvidia.com> Co-developed-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Jacob Pan <jacob.pan@linux.microsoft.com> Fixes: 2c6cf6ab1564 ("iommufd: Allow binding to a noiommu device") Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> |
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Rodrigo Vivi
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efe86f088f
|
Merge drm/drm-next into drm-xe-next
Sync some i915/display changes Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> |
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Randy Dunlap
|
6dad8dc4b1 |
ALSA: firewire: fix all kernel-doc warnings
Add missing comment for struct member @messages. Use the struct keyword for a struct's kernel-doc heading. Add missing comments for nested aggregate structs. Repair some typos. Warning: include/uapi/sound/firewire.h:97 struct member 'messages' not described in 'snd_firewire_event_ff400_message' Warning: ../include/uapi/sound/firewire.h:220 cannot understand function prototype: 'struct snd_firewire_motu_register_dsp_parameter' Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://patch.msgid.link/20260713180303.526409-4-rdunlap@infradead.org |
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You-Kai Zheng
|
b95181f392 |
btrfs: declare btrfs_ioctl_search_args_v2::buf as __u8
The variable-sized buffer buf in struct btrfs_ioctl_search_args_v2 is
declared as __u64[], but it holds a packed byte stream of search results,
where all offsets into the buffer are in bytes.
Declaring buf as __u64[] makes it easy for user space to write incorrect
pointer arithmetic: adding a byte offset directly to a __u64 pointer
scales the offset by 8, landing at byte position offset*8 instead of
offset.
This recently caused an infinite loop in btrfs-progs: the accessor read
all-zero data from misaddressed items, which fed zeroed search keys back
into the ioctl loop and spun forever. The issue was worked around at the
time by disabling TREE_SEARCH_V2 entirely in btrfs-progs (d73e69824854:
"btrfs-progs: temporarily disable usage of v2 of search tree ioctl").
The kernel side already treats buf as a byte buffer, so change the
declaration to __u8[] to match the actual semantics and prevent similar
misuse in user space. The change is ABI compatible: both the structure size
and alignment are unchanged.
Fixes:
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Neill Kapron
|
0f0ea552cd |
usb: gadget: f_fs: Introduce rw_proxy file descriptors
Currently, FunctionFS exposes each USB endpoint as a separate, unidirectional file descriptor (e.g., `ep1` for IN, `ep2` for OUT). While this mirrors the underlying hardware structure, it forces userspace daemons implementing bidirectional protocols to manage multiple file descriptors. When dealing with legacy protocols which require exposing a single, bi-directional fd to userspace, this becomes problematic. This patch introduces the `FUNCTIONFS_RW_PROXY_EPS` UAPI flag. When passed in the descriptor header during initialization, FunctionFS provisions a "rw_proxy" bidirectional file descriptor (e.g., `ep1_rw`) alongside every pair of IN/OUT endpoints. Implementation details: - RW proxy files act as a pure VFS alias, proxying operations directly to the base ffs_epfile instances. A `read()` proxies to the OUT endpoint's file, and a `write()` proxies to the IN file. - Because operations are proxied natively, they reuse the underlying base endpoint's lock (`epfile->mutex`) and tracking state. This serializes concurrent I/O, preventing buffer corruption or races even if userspace mixes transfers across both the rw_proxy and base files while allowing full-duplex synchronous operations to occur concurrently without serializing on a single lock. - Control operations (like IOCTLs) and intentional stalls (via reverse-direction I/O) must still be issued on the base endpoints, as the rw_proxy returns `-ENOTTY` for IOCTLs and cannot trigger stalls. Assisted-by: Antigravity:gemini-3.1-pro Signed-off-by: Neill Kapron <nkapron@google.com> Link: https://patch.msgid.link/20260619040609.4010746-5-nkapron@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Neill Kapron
|
c3249c462b |
usb: gadget: f_fs: Add zero-length packet ioctl
When transferring data from a USB gadget to a host, a transfer is considered complete when the host receives a short packet (a packet smaller than wMaxPacketSize). If the total transfer length is an exact multiple of wMaxPacketSize, a Zero-Length Packet (ZLP) must be appended to signal the end of the transfer. FunctionFS currently provides no mechanism for userspace to instruct the kernel to set the `req->zero` flag on transfers. Userspace workarounds, such as manually submitting separate 0-byte requests, may not be available for legacy protocols which must maintain write behavior compatibility when moved to functionfs implementations. To resolve this, introduce a new ioctl, FUNCTIONFS_ENDPOINT_ENABLE_ZLP, which takes a pointer to a __u32 flag. When enabled, all subsequent transfers on that endpoint will have the `req->zero` flag set, allowing the underlying USB Device Controller (UDC) hardware to automatically append a ZLP only when mathematically required. For logical transfers chunked across multiple requests, userspace can dynamically toggle this flag, enabling it only prior to submitting the final chunk. The flag defaults to false to maintain backward compatibility. Once enabled, the state is persistent for the lifetime of the endpoint and will not be reset by opening or closing the endpoint file descriptors. Assisted-by: Gemini-CLI:gemini-3.1-pro-preview Signed-off-by: Neill Kapron <nkapron@google.com> Link: https://patch.msgid.link/20260619040609.4010746-4-nkapron@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Hugo Villeneuve
|
44b374622a |
serial: core: add new I/O type for SPI and I2C bus devices
I2C/SPI serial drivers don't use the following struct uart_port variables:
port->membase
port->mapbase
port->iobase
However, they are forced to set membase to a non-zero value so that
uart_configure_port() will succeed because of the following check:
/* If there isn't a port here, don't do anything further. */
if (!port->iobase && !port->mapbase && !port->membase)
return;
Add a new I/O type for SPI and I2C bus devices to remove the need to
implement the kind of above-mentioned ambiguous workarounds to make them
work. Now that UART report functions are using uart_iotype_*() functions,
no more irrelevant I/O information are being printed for UPIO_BUS iotypes.
Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Link: https://patch.msgid.link/20260521-tty-upio-v3-7-bf74567994a0@dimonoff.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Shyam Sundar S K
|
c7bdedfcb8
|
platform/x86/amd/pmf: Move debug helper functions to UAPI header
These debug helper functions convert enumerated values to appropriate message and can be useful for userspace tools and other kernel components that need to interpret AMD PMF state values. By making them inline functions in the UAPI header, they become available to both kernel and userspace without code duplication. Also, prefix the function names with amd_pmf_. Also, include a case to cover unused enum entries. Co-developed-by: Sanket Goswami <Sanket.Goswami@amd.com> Signed-off-by: Sanket Goswami <Sanket.Goswami@amd.com> Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com> Link: https://patch.msgid.link/20260609081044.2416731-5-Shyam-sundar.S-k@amd.com Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> |
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Shyam Sundar S K
|
08f3df928f
|
platform/x86/amd/pmf: Store commonly used enums in the header file
Relocate commonly used enums from multiple source files into a shared header file to simplify code structure, improve readability, and enhance maintainability. Also, remove the initialization of the first enum member, since it is not needed. Add the AMD_PMF_ prefix to the laptop_placement and platform_type enums since these names are overly generic for inclusion in a UAPI header Co-developed-by: Sanket Goswami <Sanket.Goswami@amd.com> Signed-off-by: Sanket Goswami <Sanket.Goswami@amd.com> Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com> Link: https://patch.msgid.link/20260609081044.2416731-4-Shyam-sundar.S-k@amd.com Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> |
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Shyam Sundar S K
|
1983d7dee5
|
platform/x86/amd/pmf: store BIOS output values for user-space metrics via util IOCTL
Add a bios_output[] to amd_pmf_dev struct and store the latest values for BIOS output policies when applying PMF policies. This enables the AMD PMF util layer to expose these BIOS outputs alongside selected thermal and power metrics to user space via /dev/amdpmf_interface and a new IOCTL, supporting real-time monitoring tools such as SystemDeck. Co-developed-by: Sanket Goswami <Sanket.Goswami@amd.com> Signed-off-by: Sanket Goswami <Sanket.Goswami@amd.com> Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com> Link: https://patch.msgid.link/20260609081044.2416731-3-Shyam-sundar.S-k@amd.com Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> |
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Shyam Sundar S K
|
98432eec31
|
platform/x86/amd/pmf: Add util layer and userspace character device interface
Add a util layer to AMD PMF that exposes a minimal userspace interface via a character device for metrics monitoring and feature discovery. This creates /dev/amdpmf_interface with basic ioctl support to retrieve PMF metrics such as: * Power source and power slider position * Platform type, lid state, and user presence * Skin temperature and ambient light * BIOS input parameters (1-10) * Graphics workload metrics * CPU C-state residency (average and maximum) * Socket power consumption * Auto Mode: Automatic power profile switching based on system activity * Static Power Slider: User-selectable power profiles * Policy Builder (Smart PC): Action based policy management * Dynamic Power Slider AC: Adaptive power profiles when on AC power * Dynamic Power Slider DC: Adaptive power profiles when on battery The interface enables smoother integration with userspace tools such as AMD SystemDeck [1], which is widely used for monitoring and controlling power and thermal behavior on AMD platforms. These tools help designers keep major components within thermal limits to ensure proper operation and enhance overall system stability and reliability. The feature is gated behind the CONFIG_AMD_PMF_UTIL_SUPPORT Kconfig option, allowing it to be disabled if not needed. The implementation uses existing PMF infrastructure to populate data from the TA (Trusted Application) shared memory buffer. Link: https://docs.amd.com/v/u/en-US/68773_0.50 [1] Co-developed-by: Sanket Goswami <Sanket.Goswami@amd.com> Signed-off-by: Sanket Goswami <Sanket.Goswami@amd.com> Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com> Link: https://patch.msgid.link/20260609081044.2416731-2-Shyam-sundar.S-k@amd.com Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> |
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Thomas Weißschuh
|
79ced850e5 |
y2038: uapi: Use 64-bit __kernel_old_timespec::tv_nsec on x32
'struct __kernel_old_timespec' represents the 'native' time ABI of the
kernel. On 32-bit systems it uses 32-bit fields and on 64-bit systems
it uses 64-bit fields.
However the x86 x32 ABI uses the 64-bit time ABI natively. This is
correctly handled for the 'tv_sec' fields, through the typedefs of
'__kernel_old_time_t' -> '__kernel_long_t' -> 'long long'. The same
treatment was missed for 'tv_nsec'.
In practice this might not make much of a difference as the value of
'tv_nsec' will always fit into 32 bits and the missing bits fall
into the padding of the structure.
When introspecting the structure however, a difference can be observed.
Switch to 64-bit tv_nsec on x32. No other architectures or ABIs are
affected.
While this could be interpreted as violating the POSIX requirement of
'timespec::tv_nsec' being 'long':
* __kernel_old_timespec is not actually the POSIX timespec type
* the requirement is gone in newer versions of POSIX
* this matches glibc
Fixes:
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|
Cosmin Ratiu
|
b5f90fd458 |
devlink: Add parent dev to devlink API
Upcoming changes to the rate commands need the parent devlink specified. This change adds a nested 'parent-dev' attribute to the API and helpers to obtain and put a reference to the parent devlink instance in info->ctx. To avoid deadlocks, the parent devlink is unlocked before obtaining the main devlink instance that is the target of the request. A reference to the parent is kept until the end of the request to avoid it suddenly disappearing. This means that this reference is of limited use without additional protection. Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com> Reviewed-by: Carolina Jubran <cjubran@nvidia.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Link: https://patch.msgid.link/20260701073254.754518-6-tariqt@nvidia.com Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
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|
Dave Airlie
|
0461ba9a79 |
amd-drm-next-7.3-2026-07-02:
amdgpu: - Queue reset updates - Initial compute pipe reset support - Improved boundary checking for bios parsing - Cleaned up sysfs input parsing - devcoredump fixes - RAS updates and rework - VCN secure submission fixes - 8K panel fix - Add display KUnit tests - Display CRC fixes - UserQ updates - Backlight fixes - Parse panel type info from DisplayID - Align IP discovery to pci device lifetime - IOCTL boundary check fixes - Convert amdgpu_vm_lock_by_pasid() to drm_exec - Ctx fixes and cleanup - SOC15 register macro cleanups - Memory placement fixes for UVD - Disable KQ support for MI3xx - GFX9 mode2 reset fix - BO list cleanup - Soc24 aborted suspend fix - Gfx8 soft reset rework - Enable soft reset on gfx8 - Drop unnecessary BUG() and BUG_ON() in error paths - Fix power reporting unit conversion - Improve vbios command table bounds checking - UVD bounds checking improvements - VCN bounds checking improvements - PSR and replay fixes - DCN 4.2 updates - Colorop updates - DC GPIO rework - ACP fixes - Fix aperture mapping leak - Ignore_damage_clips fix - Fixes for non-4K pages - JPEG idle check fixes - Userptr fixes - GPUVM fixes - GC 11.7 updates - SMU 13 fixes amdkfd: - Initial compute pipe reset support - Allow applications to opt out of sigbus on fatal errors - Fix doorbell/mmio BO cleanup - Improved CRIU boundary checking - MQD handling rework - SMI fixes - Reset event fixes - CRIU fixes - Sysfs teardown fixes - IOCTL boundary check fixes - SVM fixes - Soft IH ring fixes - Move TBA/TMA from system to device memory radeon: - Blit fix for large BOs - r600 dpm cleanup fix drm: - Extract EDID base section header processing into helper - Parse panel type from DisplayID 2.x Display Parameters UAPI: - KFD interface for applications to select sigbus behavior on fatal errors Proposed userspace: https://github.com/ROCm/rocm-systems/pull/6190 -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQQgO5Idg2tXNTSZAr293/aFa7yZ2AUCakZxdQAKCRC93/aFa7yZ 2FLQAP9krkW8X32Tb7pmwitAvaJMGBizPJ0AKauJ91bEOAz67wEAkvGDMIq3R6Gs fsSESKQINIEAKKL1fwjAsw8Hqnw+qwM= =0aPB -----END PGP SIGNATURE----- Merge tag 'amd-drm-next-7.3-2026-07-02' of https://gitlab.freedesktop.org/agd5f/linux into drm-next [airlied: had to reapply drm/amdgpu: Implement "color format" DRM property by hand to amdgpu_dm_connector.c] amd-drm-next-7.3-2026-07-02: amdgpu: - Queue reset updates - Initial compute pipe reset support - Improved boundary checking for bios parsing - Cleaned up sysfs input parsing - devcoredump fixes - RAS updates and rework - VCN secure submission fixes - 8K panel fix - Add display KUnit tests - Display CRC fixes - UserQ updates - Backlight fixes - Parse panel type info from DisplayID - Align IP discovery to pci device lifetime - IOCTL boundary check fixes - Convert amdgpu_vm_lock_by_pasid() to drm_exec - Ctx fixes and cleanup - SOC15 register macro cleanups - Memory placement fixes for UVD - Disable KQ support for MI3xx - GFX9 mode2 reset fix - BO list cleanup - Soc24 aborted suspend fix - Gfx8 soft reset rework - Enable soft reset on gfx8 - Drop unnecessary BUG() and BUG_ON() in error paths - Fix power reporting unit conversion - Improve vbios command table bounds checking - UVD bounds checking improvements - VCN bounds checking improvements - PSR and replay fixes - DCN 4.2 updates - Colorop updates - DC GPIO rework - ACP fixes - Fix aperture mapping leak - Ignore_damage_clips fix - Fixes for non-4K pages - JPEG idle check fixes - Userptr fixes - GPUVM fixes - GC 11.7 updates - SMU 13 fixes amdkfd: - Initial compute pipe reset support - Allow applications to opt out of sigbus on fatal errors - Fix doorbell/mmio BO cleanup - Improved CRIU boundary checking - MQD handling rework - SMI fixes - Reset event fixes - CRIU fixes - Sysfs teardown fixes - IOCTL boundary check fixes - SVM fixes - Soft IH ring fixes - Move TBA/TMA from system to device memory radeon: - Blit fix for large BOs - r600 dpm cleanup fix drm: - Extract EDID base section header processing into helper - Parse panel type from DisplayID 2.x Display Parameters UAPI: - KFD interface for applications to select sigbus behavior on fatal errors Proposed userspace: https://github.com/ROCm/rocm-systems/pull/6190 From: Alex Deucher <alexander.deucher@amd.com> Link: https://patch.msgid.link/20260702141515.67919-1-alexander.deucher@amd.com Signed-off-by: Dave Airlie <airlied@redhat.com> |
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Dave Airlie
|
0639cb2686 |
UAPI Changes:
- Add additional error components to xe drm_ras (Riana)
- Drop 'force_execlist' module parameter (Roper)
Cross-subsystem Changes:
- Perf events: Export perf_allow_{cpu,tracepoint} to be used by Xe (John)
Display Changes:
- Skip FORCE_WC and vm_bound check for external dma-bufs (Auld)
Driver Changes:
- Gate observation streams with perf_allow_cpu (John Hubbard)
- Documentation updates and fixes (Michal, Zhan)
- Remove unreleased NVL-S GuC (Daniele)
- Fix pcode init path (Michal)
- RTP fixes and improvements (Gustavo, Violet, Thomas, Roper)
- TLB invalidation fixes and improvements (Tilak)
- PXP detachment from HuC for newer platforms (Daniele)
- Multi-queue fix (Niranjana)
- Improve Kconfig.profile help (Rodrigo)
- Xe_drm_ras and hw_error updates and fixes (Raag, Riana)
- NVL-S updated PCI-IDs and W/a (Gustavo, Nitin)
- Fix dma_fence refcound (Wentao)
- Madvise: optimize invalidation path (Arvind)
- Fix a infinite gt-reset loop in the timeout recovery (Rodrigo)
- Fix wa_oob codegen recipe for external module builds (Thomas)
- Avoid global forcewake in cycle query path (Xin)
- Update TTM device benefical_order (Brost)
- Fix buffer overflow in guc capture (Tejas)
- Page-table fixes and improvements (Brian, Francois, Auld, Brost)
- Removing redundant check (Lu)
- General MCR and MMIO clean-up and improvements (Michal)
- Don't whitelist OA registers unconditionally (Ashutosh)
- SVM error return fix (Brost)
- Userptr fix and small related clean-ups (Shuicheng)
- Don't attempt to process FAST_REQ or EVENT relays on PF (Michal)
- Couple fdinfo improvements (Auld)
- Drop manual VF check on i2c (Raag)
- Probe info outside of xe_info_init functions (Gustavo)
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Merge tag 'drm-xe-next-2026-07-03' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-next
UAPI Changes:
- Add additional error components to xe drm_ras (Riana)
- Drop 'force_execlist' module parameter (Roper)
Cross-subsystem Changes:
- Perf events: Export perf_allow_{cpu,tracepoint} to be used by Xe (John)
Display Changes:
- Skip FORCE_WC and vm_bound check for external dma-bufs (Auld)
Driver Changes:
- Gate observation streams with perf_allow_cpu (John Hubbard)
- Documentation updates and fixes (Michal, Zhan)
- Remove unreleased NVL-S GuC (Daniele)
- Fix pcode init path (Michal)
- RTP fixes and improvements (Gustavo, Violet, Thomas, Roper)
- TLB invalidation fixes and improvements (Tilak)
- PXP detachment from HuC for newer platforms (Daniele)
- Multi-queue fix (Niranjana)
- Improve Kconfig.profile help (Rodrigo)
- Xe_drm_ras and hw_error updates and fixes (Raag, Riana)
- NVL-S updated PCI-IDs and W/a (Gustavo, Nitin)
- Fix dma_fence refcound (Wentao)
- Madvise: optimize invalidation path (Arvind)
- Fix a infinite gt-reset loop in the timeout recovery (Rodrigo)
- Fix wa_oob codegen recipe for external module builds (Thomas)
- Avoid global forcewake in cycle query path (Xin)
- Update TTM device benefical_order (Brost)
- Fix buffer overflow in guc capture (Tejas)
- Page-table fixes and improvements (Brian, Francois, Auld, Brost)
- Removing redundant check (Lu)
- General MCR and MMIO clean-up and improvements (Michal)
- Don't whitelist OA registers unconditionally (Ashutosh)
- SVM error return fix (Brost)
- Userptr fix and small related clean-ups (Shuicheng)
- Don't attempt to process FAST_REQ or EVENT relays on PF (Michal)
- Couple fdinfo improvements (Auld)
- Drop manual VF check on i2c (Raag)
- Probe info outside of xe_info_init functions (Gustavo)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patch.msgid.link/akf7xr96MI4Rd6Qj@intel.com
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P Praneesh
|
dd21d1844a |
wifi: cfg80211: Fragment per-link station stats in nl80211_dump_station()
In MLO scenarios, stations may have multiple links, each with distinct statistics. When userspace tools like iw or hostapd request station dumps, attempting to pack all per-link stats into a single netlink message can easily exceed the default 4KB buffer limit, especially when more than two links are active. This results in -EMSGSIZE errors and incomplete data delivery. To address this, fragment per-link station statistics across multiple netlink messages to ensure reliable delivery of complete MLO station information. Extend the stateful context with a two-phase dump mechanism: phase 0 (AGGREGATED) sends combined MLO-level statistics and phase 1 (PER_LINK) sends individual per-link statistics for each active link. The dump loop is structured to produce exactly one netlink message per iteration, with a common header (ifindex, wdev, mac, generation) built once and phase-specific payload added via a switch statement. This keeps header construction in one place and makes the EMSGSIZE bail-out uniform. Add a new request flag attribute, NL80211_ATTR_STA_DUMP_LINK_STATS (NLA_FLAG), for NL80211_CMD_GET_STATION dump. Userspace can set this flag to request per-link station statistics for MLO stations. Extract this flag during the first dump invocation by passing an attrbuf to nl80211_prepare_wdev_dump(); use __free(kfree) to avoid scattered manual kfree() calls. Cache the boolean in the dump context to avoid repeated parsing on subsequent invocations. Per-link messages carry a single NL80211_ATTR_MLO_LINKS nest with the link ID, link-specific MAC, and per-link NL80211_ATTR_STA_INFO payload. The link-specific validity (is_valid_ether_addr) and null pointer guard are checked in nl80211_put_link_station_payload() before any message construction begins. Also fix all nla_nest_start_noflag() calls in nl80211_fill_link_station() for nested attribute types (STA_INFO, BSS_PARAM, TID_STATS, per-tid) to use nla_nest_start() so the NLA_F_NESTED flag is set correctly. Propagate the actual return value from nl80211_put_sta_info_common() in the AGGREGATED phase rather than returning skb->len. Returning skb->len signals netlink to re-invoke the dump with the same sta_idx, causing an infinite loop when the aggregated payload is too large to fit; returning the real error code (-EMSGSIZE or otherwise) terminates the dump cleanly. Backward compatibility is seamlessly preserved for non-MLO stations. Signed-off-by: P Praneesh <praneesh.p@oss.qualcomm.com> Link: https://patch.msgid.link/20260614051739.3979947-5-praneesh.p@oss.qualcomm.com Signed-off-by: Johannes Berg <johannes.berg@intel.com> |
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Ivan Vecera
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0cc8348a97 |
dpll: add DPLL_PIN_TYPE_INT_NCO pin type
Add DPLL_PIN_TYPE_INT_NCO pin type for virtual pins representing the NCO mode of a DPLL. When connected as a DPLL input, the DPLL enters NCO mode where the output frequency is adjusted by the host via the PTP clock interface. Update the fractional-frequency-offset and fractional-frequency- offset-ppt attribute documentation to note that for INT_NCO pins these attributes represent the DPLL's current output frequency offset from its nominal frequency. Reviewed-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: Ivan Vecera <ivecera@redhat.com> Link: https://patch.msgid.link/20260630125536.720717-3-ivecera@redhat.com Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
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Ivan Vecera
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b1d0c41208 |
dpll: add STATE_CONNECTED_OVERRIDE pin capability
Add DPLL_PIN_CAPABILITIES_STATE_CONNECTED_OVERRIDE capability flag that indicates a pin can be set to connected regardless of the current DPLL device mode, overriding the active input selection. This is useful for automatic-only DPLL devices where mode cannot be switched to manual, allowing userspace to directly connect such pin from automatic mode. The capability requires STATE_CAN_CHANGE to be set as well; dpll_pin_register() warns if a driver violates this. Document the new capability in the Pin selection section of Documentation/driver-api/dpll.rst. Signed-off-by: Ivan Vecera <ivecera@redhat.com> Link: https://patch.msgid.link/20260630125536.720717-2-ivecera@redhat.com Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
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Johannes Berg
|
f83378e6ce |
wifi: nl80211: clarify NL80211_BAND_IFTYPE_ATTR_HE_6GHZ_CAPA content
This is currently __le16, but really the whole content of the corresponding 802.11 element, which is even extensible and could, in theory, be increased in size. Clarify the docs. Link: https://patch.msgid.link/20260615093948.0f730833a6d5.I1c8c5c09dfe16b0b1dcb10d54fc030f6b1d4fc8c@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com> |
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Priyansha Tiwari
|
010e955c20 |
wifi: cfg80211/nl80211: add STA-mode peer probing
Add NL80211_EXT_FEATURE_PROBE_AP to allow drivers to advertise support for probing the associated AP from STA/P2P-client mode. Extend nl80211_probe_peer() to accept STA/P2P-client interfaces when the driver advertises NL80211_EXT_FEATURE_PROBE_AP; in that case the MAC attribute must be omitted (the peer is implied by the association). Update cfg80211_probe_status() to accept an optional peer address and a link_id parameter (-1 for non-MLO), and include NL80211_ATTR_MLO_LINK_ID in the event when link_id >= 0. Update all callers. Signed-off-by: Priyansha Tiwari <priyansha.tiwari@oss.qualcomm.com> Link: https://patch.msgid.link/20260611062225.2144241-3-pritiwa@qti.qualcomm.com Signed-off-by: Johannes Berg <johannes.berg@intel.com> |
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Priyansha Tiwari
|
4ab9b637b9 |
wifi: nl80211/cfg80211: rename probe_client to probe_peer
Rename NL80211_CMD_PROBE_CLIENT to NL80211_CMD_PROBE_PEER in the UAPI enum and retain NL80211_CMD_PROBE_CLIENT as a compatibility alias. Rename the .probe_client cfg80211_ops callback to .probe_peer and update all in-tree users (wil6210, mwifiex) and mac80211 so the tree continues to build after this change. Signed-off-by: Priyansha Tiwari <priyansha.tiwari@oss.qualcomm.com> Link: https://patch.msgid.link/20260611062225.2144241-2-pritiwa@qti.qualcomm.com Signed-off-by: Johannes Berg <johannes.berg@intel.com> |
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Rafael Passos
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3a8bfa1f2a
|
drm/xe: Documentation: fix chars used for subsection
Fixes "ERROR: A level 2 section cannot be used here". Equal signs are reserved for document titles. This file docs gets imported by driver-uapi.rst, and the page title is defined there. Signed-off-by: Rafael Passos <rafael@rcpassos.me> Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Tested-by: Randy Dunlap <rdunlap@infradead.org> Link: https://patch.msgid.link/20260701012141.167868-1-rafael@rcpassos.me Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> [Rodrigo modified the subject while pushing it] |
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Vijendar Mukunda
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08c5e98b7b
|
ASoC: SOF: amd: add ACP I2S format field and topology token
Add format field to sof_ipc_dai_acp_params for ACP I2S format selection. Add SOF_TKN_AMD_ACPI2S_FORMAT (1703) to the existing SOF_ACPI2S_TOKENS tuple and wire it into acpi2s_tokens[] so integrators continue using the same ACPI2S token group as earlier ACP I2S topologies, not a separate ACPTDM-specific token set. Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com> Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com> Link: https://patch.msgid.link/20260701095759.1012929-15-Vijendar.Mukunda@amd.com Signed-off-by: Mark Brown <broonie@kernel.org> |
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Yuyang Huang
|
7cb8198761 |
net: ipv4: report multicast group user count
RTM_GETMULTICAST has been part of the rtnetlink ABI for a long time and already reports IPv4 multicast group membership through IFA_MULTICAST and IFA_CACHEINFO. It does not report how many consumers hold each membership, so userspace still has to parse /proc/net/igmp to get the Users column. Add IFA_MC_USERS as a u32 attribute carrying ip_mc_list::users in RTM_GETMULTICAST replies and entry-lifecycle notifications. This gives iproute2 enough information to migrate the IPv4 part of "ip maddr show" from procfs parsing to rtnetlink. Signed-off-by: Yuyang Huang <sigefriedhyy@gmail.com> Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Link: https://patch.msgid.link/20260630110207.37841-2-sigefriedhyy@gmail.com Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
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Jiri Olsa
|
859055e076 |
bpf: Add tracing_multi link info support
Adding BPF_OBJ_GET_INFO_BY_FD support for tracing_multi links. We expose following tracing_multi link data: - attach_type of the program - number of ids - array of BTF ids - array of its related kernel addresses - array of cookies The change follows the kprobe_multi and uprobe_multi link-info convention of optional output arrays with an in/out count, On top of standard tracing link data we also expose addresses, because they are useful info for user (especially when the attachment was done via pattern). This data is hidden when kallsyms does not allow exposing kernel pointer values. Assisted-by: Codex:GPT-5 Signed-off-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Leon Hwang <leon.hwang@linux.dev> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20260629212208.895962-2-jolsa@kernel.org |
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Tao Cui
|
5911f6d6e7 |
RDMA/nldev: Add resource summary max values for usage display
Add RDMA_NLDEV_ATTR_RES_SUMMARY_ENTRY_MAX netlink attribute to expose device resource limits (max_qp, max_cq, max_mr, max_pd, max_srq) in the resource summary alongside the existing current count. This allows userspace tools like iproute2's rdma to display resource usage in curr/max format. Expected output from "rdma resource show": Before: 0: mlx5_0: qp 123 cq 45 mr 200 pd 10 After: 0: mlx5_0: qp 123/131072 cq 45/65536 mr 200/1000000 pd 10/32768 In JSON output, both "curr" and "max" fields will be provided so that scripts can compute percentages if needed. The new attribute is optional and backward compatible - old userspace tools will simply ignore it. Signed-off-by: Tao Cui <cuitao@kylinos.cn> Link: https://patch.msgid.link/20260615003646.168704-1-cui.tao@linux.dev Signed-off-by: Leon Romanovsky <leon@kernel.org> |
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|
Thomas Zimmermann
|
827b9aabd3 |
Merge drm/drm-next into drm-misc-next
Backmerging to get drm-misc-next to v7.2-rc1. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> |
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|
Chenyu Chen
|
1258f9c9ff |
drm/edid: parse panel type from DisplayID 2.x Display Parameters
Parse the Display Parameters Data Block (tag 0x21) defined in DisplayID v2.1a Section 4.2.6. Extract the Display Device Technology field from the color depth and device technology byte, which indicates whether the panel uses LCD or OLED technology. Add a panel_type field to struct drm_display_info and populate it during DisplayID iteration so downstream drivers can use it for panel-type-dependent behavior. Add DRM_MODE_PANEL_TYPE_LCD to the UAPI panel type property alongside the existing OLED value. Assisted-by: Copilot:Claude-Opus-4.6 Signed-off-by: Chenyu Chen <chen-yu.chen@amd.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org> Link: https://patch.msgid.link/20260526030254.1460480-3-chen-yu.chen@amd.com Signed-off-by: Mario Limonciello <superm1@kernel.org> |
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Matthew Wilcox (Oracle)
|
969076f31b
|
efs: Remove EFS
The kernel EFS code has been unmaintained for over twenty years. It was superseded on IRIX around thirty years ago. I haven't seen an EFS filesystem in the wild since 1999. Userspace tools to read EFS filesystems exist, such as https://github.com/jkbenaim/efsextract There's no benefit to keeping this filesystem in the kernel, and it only increases the maintenance burden for tree-wide changes. Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Link: https://patch.msgid.link/20260618211822.3599089-1-willy@infradead.org Acked-by: Jori Koolstra <jkoolstra@xs4all.nl> Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org> |
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Jordan Rife
|
509ca545d4 |
bpf: Support BPF_F_EGRESS with bpf_redirect_peer
We have several use cases where a pod injects traffic into the datapath of another so that the traffic appears to have originated from that pod. One such use case is a synthetic flow generator which injects synthetic traffic into a pod's datapath to enable dynamic probing and debugging. Another is a transparent proxy where connections originating from one pod are redirected towards another which proxies that connection. The new connection is bound to the IP of the original pod using IP_TRANSPARENT and its traffic is injected into that pod's datapath and handled as if it had originated there. This can be used for mTLS, etc. We use bpf_redirect(BPF_F_INGRESS) to direct traffic leaving the proxy, flow generator, etc. towards the target pod, ensuring that eBPF programs that are meant to intercept traffic leaving that pod are executed. However, this doesn't work with netkit. With netkit, an ingress redirection from proxy to workload skips eBPF programs that are meant to intercept traffic leaving the pod, since they reside on the netkit peer device. One workaround is to attach the same program to both the netkit peer device and the TCX ingress hook for the netkit pair's primary interface, but a) This seems hacky and we need to be careful not to run the same program twice for the same skb in cases where we want to pass that traffic to the host stack. b) We're trying to keep the proxy redirection / traffic injection systems as modular and separated from Cilium as possible, the system that manages netkit setup and core eBPF programming. It would be handy if instead we could redirect traffic directly from one netkit peer device to another. This patch proposes an extension to bpf_redirect_peer to allow us to do just that. With this patch, the BPF_F_EGRESS flag tells bpf_redirect_peer to emit the skb in the egress direction of the target interface's peer device While the main use case is netkit, I suppose you could also use this mode with veth as well if, e.g., there were some eBPF programs attached to that side of the veth pair that needed to intercept traffic. +---------------------------------------------------------------------+ | +-------------------------+ 6. bpf_redirect_neigh(eth0) | | | pod (10.244.0.10) | ------------------------ | | | | | | | | | +--------+ | | +---------+ | | | | 1. packet -->| | | | | | | | | | leaves ^ | netkit |<===========|======| netkit | | | | | | | peer |=======(eBPF)=====>| primary | | | | | | | | | | | | | | | | | +--------+ | | +---------+ | | | | | | | 2. bpf_redirect v | | +-----------|-------------+ |___________________ +-------| | | | | eth0 | | | 5. bpf_redirect_peer(BPF_F_EGRESS) | +-------| | |________________________ | | | +-------------------------+ | | | | | proxy (10.244.0.11) | | | | | | IP_TRANSPARENT | | | | | | +--------+ | | +---------+ | | | | 3. packet <--| | | | | |<-- | | | enters | netkit |<===========|======| netkit | | | | [proxy] | peer |=======(eBPF)=====>| primary | | | | 4. packet -->| | | | | | | | leaves +--------+ | +---------+ | | | sip=10.244.0.10 | | | +-------------------------+ | +---------------------------------------------------------------------+ Using the proxy use case as an example, in step 5 we would redirect traffic leaving the proxy towards the pod's peer device using bpf_redirect_peer(BPF_F_EGRESS). As a bonus, since the skb doesn't have to go through the backlog queue it can take full advantage of netkit's performance benefits. I set up a test where outgoing iperf3 traffic is injected into the datapath of another pod using either bpf_redirect_peer(BPF_F_EGRESS) or bpf_redirect(BPF_F_INGRESS). I used Cilium's eBPF host routing mode which skips the host stack and uses BPF redirect helpers to do all the routing. (net.ipv4.tcp_congestion_control=cubic,mtu=1500,100GiB link,Cilium eBPF host routing mode) BASELINE [bpf_redirect(BPF_F_INGRESS)] 1. [iperf pod] ==bpf_redirect([pod b], BPF_F_INGRESS)==> [pod b] 2. [pod b] ==bpf_redirect_neigh([eth0])==> eth0 3. eth0 ==over network==> [host b] [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-60.00 sec 231 GBytes 33.0 Gbits/sec 12060 sender [ 5] 0.00-60.00 sec 230 GBytes 33.0 Gbits/sec receiver TEST [bpf_redirect_peer(BPF_F_EGRESS)] 1. [iperf pod] ==bpf_redirect_peer([pod b], BPF_F_EGRESS)==> [pod b] 2. [pod b] ==bpf_redirect_neigh([eth0])==> eth0 3. eth0 ==over network==> [host b] [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-60.00 sec 272 GBytes 38.9 Gbits/sec 0 sender [ 5] 0.00-60.00 sec 272 GBytes 38.9 Gbits/sec receiver In this test, using bpf_redirect_peer(BPF_F_EGRESS) for the hop from [iperf pod] to [pod b] led to ~18% more throughput compared to bpf_redirect(BPF_F_INGRESS). Signed-off-by: Jordan Rife <jordan@jrife.io> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Paul Chaignon <paul.chaignon@gmail.com> Reviewed-by: Jiayuan Chen <jiayuan.chen@linux.dev> Link: https://lore.kernel.org/r/20260618182035.43811-2-jordan@jrife.io Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
||
|
Linus Torvalds
|
805185b7c7 |
Including fixes from netfilter and IPsec.
Current release - regressions:
- net: do not acquire dev->tx_global_lock in netdev_watchdog_up()
- net: ethtool: keep rtnl_lock for ops using ethtool_op_get_link()
- net: fix deadlock in nested UP notifier events
Current release - new code bugs:
- eth: cn20k: fix subbank free list indexing for search order
- eth: airoha: fix BQL underflow in shared QDMA TX ring
Previous releases - regressions:
- netfilter:
- flowtable: fix offloaded ct timeout never being extended
- nf_conncount: prevent connlimit drops for early confirmed ct
Previous releases - always broken:
- require CAP_NET_ADMIN in the originating netns when modifying
cross-netns devices
- report NAPI thread PID in the caller's pid namespace
- mac802154: fix dirty frag in in-place crypto for IOT radios
- sctp: hold socket lock when dumping endpoints in sctp_diag,
avoid an overflow
- eth: gve: fix header buffer corruption with header-split and HW-GRO
- af_key: initialize alg_key_len for IPComp states, prevent OOB read
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from netfilter and IPsec.
Current release - regressions:
- do not acquire dev->tx_global_lock in netdev_watchdog_up()
- ethtool: keep rtnl_lock for ops using ethtool_op_get_link()
- fix deadlock in nested UP notifier events
Current release - new code bugs:
- eth:
- cn20k: fix subbank free list indexing for search order
- airoha: fix BQL underflow in shared QDMA TX ring
Previous releases - regressions:
- netfilter:
- flowtable: fix offloaded ct timeout never being extended
- nf_conncount: prevent connlimit drops for early confirmed ct
Previous releases - always broken:
- require CAP_NET_ADMIN in the originating netns when modifying
cross-netns devices
- report NAPI thread PID in the caller's pid namespace
- mac802154: fix dirty frag in in-place crypto for IOT radios
- sctp: hold socket lock when dumping endpoints in sctp_diag, avoid
an overflow
- eth: gve: fix header buffer corruption with header-split and HW-GRO
- af_key: initialize alg_key_len for IPComp states, prevent OOB read"
* tag 'net-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (213 commits)
selftests: bonding: add a test for VLAN propagation over a bonded real device
vlan: defer real device state propagation to netdev_work
net: add the driver-facing netdev_work scheduling API
net: turn the rx_mode work into a generic netdev_work facility
net: ethtool: keep rtnl_lock for ops using ethtool_op_get_link()
rxrpc: Fix rxrpc_rotate_tx_rotate() to check there's something to rotate
rxrpc: Fix leak of released call in recvmsg(MSG_PEEK)
rxrpc: Fix socket notification race
rxrpc: Fix potential infinite loop in rxrpc_recvmsg()
rxrpc: Fix oob challenge leak in cleanup after notification failure
rxrpc: Fix the reception of a reply packet before data transmission
afs: Fix uncancelled rxrpc OOB message handler
afs: Fix further netns teardown to cancel the preallocation charger
rxrpc: Fix double unlock in rxrpc_recvmsg()
rxrpc: Fix leak of connection from OOB challenge
rxrpc: Fix ACKALL packet handling
net: hns3: differentiate autoneg default values between copper and fiber
net: hns3: fix permanent link down deadlock after reset
net: hns3: refactor MAC autoneg and speed configuration
net: hns3: unify copper port ksettings configuration path
...
|
||
|
Linus Torvalds
|
e161101787 |
Input updates for v7.2-rc0
- A new driver for Wacom W9000-series penabled touchscreens - Updates to STM FTS driver adding support for reset line and preparing the driver for STMFTS5 support - Updates to RMI4 and IMS PCU drivers hardening the code - Support for half-duplex mode restored in ADS7846 driver - Updates to driver's device_id tables to use named initializers - Removal of no longer used PCAP keys and touchscreen drivers (support for the ezx series of phones was removed in 2022) - Removal of xilinx_ps2 driver which is no longer used either - Updates to userio to allow setting up additional serio port characteristics (such as id, extra and proto) - Assorted hardening and cleanup fixes for other drivers. -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQST2eWILY88ieB2DOtAj56VGEWXnAUCajs+4wAKCRBAj56VGEWX nN+EAQDaknpx+XZLU28jQqm4mK2BZde1cbtZ9/D7VS3n50by9AD/e+Tr3aqDAjTs hmDqdkrBIo8YlvlCvq4dosAKBH8gXA0= =nZiu -----END PGP SIGNATURE----- Merge tag 'input-for-v7.2-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input updates from Dmitry Torokhov: - A new driver for Wacom W9000-series penabled touchscreens - Updates to STM FTS driver adding support for reset line and preparing the driver for STMFTS5 support - Updates to RMI4 and IMS PCU drivers hardening the code - Support for half-duplex mode restored in ADS7846 driver - Updates to driver's device_id tables to use named initializers - Removal of no longer used PCAP keys and touchscreen drivers (support for the ezx series of phones was removed in 2022) - Removal of xilinx_ps2 driver which is no longer used either - Updates to userio to allow setting up additional serio port characteristics (such as id, extra and proto) - Assorted hardening and cleanup fixes for other drivers * tag 'input-for-v7.2-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (72 commits) Input: mms114 - fix touch indexing for MMS134S and MMS136 Input: elan_i2c - prevent division by zero and arithmetic underflow Input: stop force-feedback timer when unregistering input devices Input: iforce - bound the device-reported force-feedback effect index Input: goodix - clamp the device-reported contact count Input: mms114 - reject an oversized device packet size Input: touchwin - reset the packet index on every complete packet Input: rmi4 - update formatting in F12 Input: rmi4 - propagate proper error code in F12 sensor tuning Input: rmi4 - simplify size calculations in F12 Input: rmi4 - use sizeof(*ptr) and idiomatic checks in f12 allocators Input: rmi4 - use devm_kmalloc for F12 data packet buffer Input: rmi4 - use flexible array member for IRQ masks in F12 Input: rmi4 - use unaligned access helpers in F12 Input: rmi4 - change reg_size type to u32 Input: rmi4 - refactor F12 probe function Input: rmi4 - use kzalloc_flex() for struct rmi_function Input: rmi4 - refactor function allocation and registration Input: rmi4 - use local presence map in rmi_read_register_desc() Input: rmi4 - fix limit in rmi_register_desc_has_subpacket() ... |
||
|
Linus Torvalds
|
0000d9ccbc |
Char/Misc/IIO/FPGA/GPIB/etc driver updates for 7.2-rc1
Here is the big set of char, misc, iio, fpga, and other small driver subsystems changes for 7.2-rc1. Lots of little stuff in here, the majority being of course the IIO driver updates, as a list they are: - IIO driver updates and additions - GPIB driver bugfixes and cleanups - Android binder driver updates (rust and C version) - counter driver updates - MHI driver updates - mei driver updates - w1 driver updates - interconnect driver updates - Comedi driver fixes and updates - some obsolete char drivers removed (applicom and dtlk) - hwtracing driver updates - other tiny driver updates All of these have been in linux-next for a while with no reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCajk4Gg8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+yl89wCdG1WBLsvKHZ3zaFWd4POE8G/gS1YAnRf0GcRB 0F1/iBXSZLaRF/p9dsGq =fg13 -----END PGP SIGNATURE----- Merge tag 'char-misc-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull misc driver updates from Greg KH: "Here is the big set of char, misc, iio, fpga, and other small driver subsystems changes for 7.2-rc1. Lots of little stuff in here, the majority being of course the IIO driver updates, as a list they are: - IIO driver updates and additions - GPIB driver bugfixes and cleanups - Android binder driver updates (rust and C version) - counter driver updates - MHI driver updates - mei driver updates - w1 driver updates - interconnect driver updates - Comedi driver fixes and updates - some obsolete char drivers removed (applicom and dtlk) - hwtracing driver updates - other tiny driver updates All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (406 commits) w1: ds2482: Use named initializers for arrays of i2c_device_data firmware: stratix10-svc: Add support to query Arm Trusted Firmware (ATF) version firmware: stratix10-rsu: avoid blocking reboot_image sysfs when busy coresight: ultrasoc-smb: Fix OOB write in smb_sync_perf_buffer() iio: adc: nxp-sar-adc: harden buffer ISR against per-channel read failure iio: chemical: scd30: Replace manual locking with RAII locking iio: light: tsl2591: remove unneeded tsl2591_compatible_als_persist_cycle() iio: dac: ad5686: create bus ops struct iio: dac: ad5686: cleanup doc header of local structs iio: dac: ad5686: add control_sync() for single-channel devices iio: dac: ad5686: add helpers to handle powerdown masks iio: dac: ad5686: add of_match table to the spi driver iio: dac: ad5686: drop enum id iio: dac: ad5686: remove redundant register definition iio: dac: ad5686: refactor include headers iio: adc: ad4080: fix AD4880 chip ID iio: light: veml3328: add support for new device dt-bindings: iio: light: veml6030: add veml3328 fpga: microchip-spi: fix zero header_size OOB read in mpf_ops_parse_header() fpga: dfl-afu: validate DMA mapping length in afu_dma_map_region() ... |
||
|
Linus Torvalds
|
8a500fd093 |
TTY / Serial driver update for 7.2-rc1
Here is the big set of TTY and Serial driver updates for 7.2-rc1. Overall we end up removing more code than added, due to an obsolete synclink_gt driver being removed from the tree, always a nice thing to see happen. Other than that driver removal, major things included in here are: - max310x serial driver updates and fixes - 8250 driver updates and rework in places to make it more "modern" - dts file updates - serial driver core tweaks and updates - vt code cleanups - vc_screen crash fixes - other minor driver updates and cleanups All of these have been in linux-next for well over a week with no reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCajk2xQ8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ymyewCeKSdE2vNK6LQz9hdev9qBh/J0n7oAn091vfYP i9C0vxEB+sS9vMsRAro5 =14Tn -----END PGP SIGNATURE----- Merge tag 'tty-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty / serial driver updates from Greg KH: "Here is the big set of TTY and Serial driver updates for 7.2-rc1. Overall we end up removing more code than added, due to an obsolete synclink_gt driver being removed from the tree, always a nice thing to see happen. Other than that driver removal, major things included in here are: - max310x serial driver updates and fixes - 8250 driver updates and rework in places to make it more "modern" - dts file updates - serial driver core tweaks and updates - vt code cleanups - vc_screen crash fixes - other minor driver updates and cleanups All of these have been in linux-next for well over a week with no reported issues" * tag 'tty-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (49 commits) serial: 8250_pci: Don't specify conflicting values to pci_device_id members vc_screen: fix null-ptr-deref in vcs_notifier() during concurrent vcs_write serial: qcom_geni: Fix RX DMA stall when SE_DMA_RX_LEN_IN is zero vt: merge ucs_is_zero_width()/ucs_is_double_width() into ucs_get_width() serial: 8250: fix possible ISR soft lockup dt-bindings: serial: rs485: remove deprecated .txt binding stub serial: qcom-geni: trace: Add tracepoint support for Qualcomm GENI serial tty: serial: Use named initializers for arrays of i2c_device_data serial: 8250_dw: remove clock-notifier infrastructure serial: 8250_dw: unregister 8250 port if clk_notifier_register() fails amba/serial: amba-pl011: Bring back zx29 UART support serial: 8250: Add support for console flow control serial: 8250: Check LSR timeout on console flow control serial: 8250: Set cons_flow on port registration tty: serial: 8250: protect against NULL uart->port.dev in register arm64: dts: add support for A9 based Amlogic BY401 dt-bindings: arm: amlogic: add A311Y3 support serial: max310x: fix compile errors if CONFIG_SPI_MASTER is disabled serial: qcom-geni: Avoid probing debug console UART without console support serial: max310x: add comments for PLL limits ... |
||
|
Riana Tauro
|
cdeb5e248d |
drm/xe/uapi: Add additional error components to xe drm_ras
Add additional Error components supported by XE drm_ras (Reliability, Availability and Serviceability). Reviewed-by: Aravind Iddamsetty <aravind.iddamsetty@linux.intel.com> Reviewed-by: Mallesh Koujalagi <mallesh.koujalagi@intel.com> Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patch.msgid.link/20260618060633.2790109-9-riana.tauro@intel.com Signed-off-by: Riana Tauro <riana.tauro@intel.com> |
||
|
Linus Torvalds
|
d639d9fa16 |
liveupdate: updates for 7.2-rc1
- kho: make memory preservation compatible with deferred initialization of
the memory map
- luo: add LIVEUPDATE_SESSION_GET_NAME ioctl and parameter verification for
LIVEUPDATE_IOCTL_CREATE_SESSION ioctl
- luo: documentation updates for liveupdate=on command line option, systemd
support and the current compatibility status
- luo: remove the fixed limits on the number of files that can be preserved
within a single session, and the total number of sessions managed by the
Live Update Orchestrator
- fixes that didn't cut as urgent and were delayed until the merge window:
* reference count incoming File-Lifecycle-Bound (FLB) data so it cannot
be freed while a subsystem is still using it
* fixes for a TOCTOU race in luo_session_retrieve(), a use-after-free in
the file finish and unpreserve paths, concurrent session mutations
during reboot and serialization on preserve_context kexec
* make sure ioctls for incoming LUO sessions are blocked for outgoing
sessions and vice versa
* make sure KHO scratch size is always aligned by CMA_MIN_ALIGNMENT_BYTES
* fix memblock tests build issue introduced by KHO changes
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Merge tag 'liveupdate-v7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/liveupdate/linux
Pull liveupdate updates from Mike Rapoport:
"Kexec Handover (KHO):
- make memory preservation compatible with deferred initialization
of the memory map
Live Update Orchestrator (LUO):
- add LIVEUPDATE_SESSION_GET_NAME ioctl and parameter verification
for LIVEUPDATE_IOCTL_CREATE_SESSION ioctl
- documentation updates for liveupdate=on command line option,
systemd support and the current compatibility status
- remove the fixed limits on the number of files that can be
preserved within a single session, and the total number of
sessions managed by the LUO
Misc fixes:
- reference count incoming File-Lifecycle-Bound (FLB) data so
it cannot be freed while a subsystem is still using it
- fixes for a TOCTOU race in luo_session_retrieve(), a use-
after-free in the file finish and unpreserve paths, concurrent
session mutations during reboot and serialization on
preserve_context kexec
- make sure ioctls for incoming LUO sessions are blocked for
outgoing sessions and vice versa
- make sure KHO scratch size is always aligned by
CMA_MIN_ALIGNMENT_BYTES
- fix memblock tests build issue introduced by KHO changes"
* tag 'liveupdate-v7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/liveupdate/linux: (36 commits)
liveupdate: Document that retrieve failure is permanent
docs: memfd_preservation: fix rendering of ABI documentation
selftests/liveupdate: Add stress-files kexec test
selftests/liveupdate: Add stress-sessions kexec test
selftests/liveupdate: Test session and file limit removal
liveupdate: Remove limit on the number of files per session
liveupdate: Remove limit on the number of sessions
liveupdate: defer session block allocation and physical address setting
kho: add support for linked-block serialization
liveupdate: Extract luo_session_deserialize_one helper
liveupdate: Extract luo_file_deserialize_one helper
liveupdate: register luo_ser as KHO subtree
liveupdate: centralize state management into struct luo_ser
liveupdate: avoid mixing cleanup guards with goto in luo_session_retrieve_fd
liveupdate: change file_set->count type to u64 for type safety
liveupdate: Remove unused ser field from struct luo_session
liveupdate: fix u-a-f in luo_file_unpreserve_files() and luo_file_finish()
liveupdate: block session mutations during reboot
liveupdate: fix TOCTOU race in luo_session_retrieve()
liveupdate: skip serialization for context-preserving kexec
...
|
||
|
Pablo Neira Ayuso
|
b8b09dc2bf |
netfilter: nf_conntrack_expect: use conntrack GC to reap expectations
This patch replaces the timer API by GC worker approach for
expectations, as it already happened in many other subsystems.
Use the existing conntrack GC worker to iterate over the local list of
expectations in the master conntrack to reap expired expectations.
Check IPS_HELPER_BIT to run GC for expectations, set it on for nft_ct
expectation which nevers sets it. Hold the expectation spinlock while
iterating over the master conntrack expectation list to synchronize with
nf_ct_remove_expectations(). This also performs runtime packet path
garbage collection through the expectation insertion and lookup
functions while walking over one of the chains of the global expectation
hashtables. Unconfirmed conntrack entries are skipped since ct->ext can
be reallocated and dying are skipped since those will be gone soon.
Set on IPS_HELPER_BIT if the helper ct extension is added, then the new
GC worker does not need to bump the ct refcount to check if the ct->ext
helper is available.
This removes the extra bump on the refcount for expectation timers, this
allows to remove several nf_ct_expect_put() calls after the unlink,
after this update only refcount remains at 1 while on the expectation
hashes.
This patch implicitly addresses a race with the existing timer API
allowing an expectation to access a stale exp->master pointer which has
been already released when expectation removal loses races with an
expiring timer, ie. timer_del() reporting false.
Add a new NF_CT_EXPECT_DEAD flag to reap this expectation via GC. This
is needed by nf_conntrack_unexpect_related() which is called in error
paths to invalidate newly created expectations that has been added into
the hashes. These expectactions cannot be inmediately released as GC or
nf_ct_remove_expectations() could race to make it. On expectation
insert, the runtime GC reaps stale expectations before checking the
expectation limit set by policy.
Set current timestamp in nf_ct_expect_alloc(), then add the expectation
policy timeout (or custom timeout specified added on top of this) to
specify the expectation lifetime.
Fixes:
|
||
|
Linus Torvalds
|
5e2e14749c |
Landlock update for v7.2-rc1
-----BEGIN PGP SIGNATURE----- iIYEABYKAC4WIQSVyBthFV4iTW/VU1/l49DojIL20gUCajT1cxAcbWljQGRpZ2lr b2QubmV0AAoJEOXj0OiMgvbSAWcBAKtN0xWVNJM6jXj5q2EHO5vOFTvoLD9KNLsK 9FJoWN3dAQCWsuMI1OBovh6JguJ/jvwB2chwwa5NGxanhQ1LP9NyCg== =4cLz -----END PGP SIGNATURE----- Merge tag 'landlock-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux Pull landlock updates from Mickaël Salaün: "This adds new Landlock access rights to control UDP bind and connect/send operations, and a new "quiet" feature to mute specific specific audit logs (and other future observability events). A few commits also fix Landlock issues" * tag 'landlock-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux: (24 commits) selftests/landlock: Add tests for invalid use of quiet flag selftests/landlock: Add tests for quiet flag with scope selftests/landlock: Add tests for quiet flag with net rules selftests/landlock: Add tests for quiet flag with fs rules selftests/landlock: Replace hard-coded 16 with a constant samples/landlock: Add quiet flag support to sandboxer landlock: Suppress logging when quiet flag is present landlock: Add API support and docs for the quiet flags landlock: Add a place for flags to layer rules landlock: Add documentation for UDP support samples/landlock: Add sandboxer UDP access control selftests/landlock: Add tests for UDP send selftests/landlock: Add tests for UDP bind/connect landlock: Add UDP send+connect access control landlock: Add UDP bind() access control landlock: Fix unmarked concurrent access to socket family selftests/landlock: Explicitly disable audit in teardowns selftests/landlock: Test SCOPE_SIGNAL on the SIGIO/fowner pgid path landlock: Fix LANDLOCK_SCOPE_SIGNAL bypass on the SIGIO path landlock: Demonstrate best-effort allowed_access filtering ... |
||
|
Linus Torvalds
|
c98d767b34 |
Arm:
"This is a bit of an odd merge window on the KVM/arm64 front. There is
absolutely no new feature in the pull request. It is purely fixes,
because it is simply becoming too hard to review new stuff when so
many AI-fuelled fixes hit the list".
- Significant cleanup of the vgic-v5 PPI support which was merged in
7.1. This makes the code more maintainable, and squashes a couple
of bugs in the meantime.
- Set of fixes for the handling of the MMU in an NV context,
particularly VNCR-triggered faults. S1POE support is fixed
as well.
- Large set of pKVM fixes, mostly addressing recurring issues
around hypervisor tracking of donated pages in obscure cases
where the donation could fail and leave things in a bizarre
state.
- Fixes for the so-called "lazy vgic init", which resulted in
sleeping operations in non-preemptible sections. This turned
out to be far more invasive than initially expected...
- Reduce the overhead of L1/L2 context switch by not touching
the FP registers.
- Fix the way non-implemented page sizes are dealt with when
a guest insist on using them for S2 translation.
- The usual set of low-impact fixes and cleanups all over the map.
Loongarch:
- On a request for lazy FPU load, load all FPU state that the VM
supports instead of enabling only the part (FPU, LSX or LASX)
that caused the FPU load request.
- Some enhancements about interrupt injection.
- Some bug fixes and other small changes.
RISC-V:
- Batch G-stage TLB flushes for GPA range based page table updates
- Convert HGEI line management to fully per-HART
- Fix missing CSR dirty marking when FWFT state updated via ONE_REG
- Fix stale FWFT feature exposure to Guest/VM
- Speed up dirty logging write faults using MMU rwlock and atomic
PTE updates using cmpxchg() for permission-only changes
- Use flexible array for APLIC IRQ state
- Use kvm_slot_dirty_track_enabled() for logging enable check on
a memslot
- Avoid skipping valid pages in kvm_riscv_gstage_wp_range()
- Avoid skipping valid pages in kvm_riscv_gstage_unmap_range()
- Use endian-specific __lelong for NACL shared memory
S390:
- KVM_PRE_FAULT_MEMORY support
- Support for 2G hugepages
- Support for the ASTFLEIE 2 facility
- Support for fast inject using kvm_arch_set_irq_inatomic
- Fix potential leak of uninitialized bytes
- A few more misc gmap fixes.
x86:
- Generic support for the more granular permissions allowed by EPT,
namely "read" (which was previously usurping the U bit) and
separate execution bits for kernel and userspace.
- Do not assume that all page tables start with U=1/W=1/NX=0 at the
root, as AMD GMET needs to have U=0 at the root.
- Introduce common assembly macros for use within Intel and AMD
vendor-specific vmentry code. This touches the SPEC_CTRL handling,
which is now entirely done in assembly for Intel (by reusing the
AMD code that already existed), and register save/restore which
uses some macro magic to compute the offsets in the struct. Both
of these are preparatory changes for upcoming APX support.
- Clean up KVM's register tracking and storage, primarily to prepare for
APX support, which expands the maximum number of GPRs from 16 to 32.
- Keep a single copy of the PDPTRs rather than two, since architecturally
there is just one.
- Handle EXIT_FASTPATH_EXIT_USERSPACE in vendor code to ensure vendor code
gets a chance to handle things like reaping the PML buffer.
- Update KVM's view of PV async enabling if and only if the MSR write fully
succeeds.
- Fix a variety of issues where the emulator doesn't honor guest-debug state,
and clean up related code along the way.
- Synthesize EPT Violation and #NPF "error code" bits when injecting faults
into L1 that didn't originate in hardware (in which case the VMCS/VMCB
doesn't hold relevant information).
- Add support for virtualizing (well, emulating) AMD's flavor of CPL>0 CPUID
faulting.
- Clean up the GPR APIs so that KVM's use of "raw" is consistent, and fix a
variety of minor bugs along the way.
- Fix an OOB memory access due to not checking the VP ID when handling a
Hyper-V PV TLB flush for L2.
- Fix a bug in the mediated PMU's handling of fixed counters that allowed the
guest to bypass the PMU event filter.
- Allow userspace to return EAGAIN when handling SNP and TDX hypercalls, so
the KVM can forward a "retry" status code to the guest, and reserve all
unused error codes for future usage.
- Overhaul the TDP MMU => S-EPT code to move as much S-EPT specific logic as
possible into the TDX code, and to funnel (almost) all S-EPT updates into
a single chokepoint. The motivation is largely to prepare for upcoming
Dynamic PAMT support, but the cleanups are nice to have on their own.
- Plug a hole in shadow page table handling, where KVM fails to recursively
zap nested EPT/NPT shadow page tables when the nested hypervisor tears
down its own EPT/NPT page tables from the bottom up
x86 (Intel):
- Support for nested MBEC (Mode-Based Execute Control), see above in the
generic section; also run with MBEC enabled even for non-nested mode.
- Use the kernel's "enum pg_level" in the TDX APIs instead of the TDX-Module's
level definitions (which are 0-based).
- Rework the TDX memory APIs to not require/assume that guest memory is
backed by "struct page" (in prepartion for guest_memfd hugepage support).
- Fix a largely benign bug where KVM TDX would incorrectly state it could
emulate several x2APIC MSRs.
- Use the "safe" WRMSR API when proxying LBR MSR writes as the to-be-written
value is guest controlled and completely unvalidated.
x86 (AMD):
- Support for nested GMET (Guest Mode Execution Trap), see above in the
generic section; also run with GMET enabled even for non-nested mode.
- Fixes and minor cleanups to GHCB handling, on top of the earlier work
already merged into 7.1-rc.
- Ensure KVM's copy of CR0 and CR3 are up-to-date prior to invoking
fastpath handlers.
- Add support for virtualizing gPAT (KVM previously just used L1's PAT when
running L2).
- Fix goofs where KVM mishandles side effects (e.g. single-step and PMC
updates) when emulating VMRUN.
- Fix a variety of bugs in AVIC's handling of x2APIC MSR interception, most
notably where KVM didn't disable interception of IRR, ISR, and TMR regs.
- Add support for virtualizing Host-Only/Guest-Only bits in the mediated PMU.
- Don't advertise support for unusable VM types, and account for VM types
that are disabled by firmware, e.g. to mitigate security vulnerabilities.
- Rewrite the SEV {en,de}crypt debug ioctls as they were riddle with bugs and
unnecessarily complicated, and add comprehensive tests.
- Clean up and deduplicate the SEV page pinning code.
- Fix minor goofs related to writing back CPUID information after firmware
rejects a CPUID page for an SNP vCPU.
Generic:
- Rename invalidate_begin() to invalidate_start() throughout KVM to follow
the kernel's nomenclature, e.g. for mmu_notifiers.
- Use guard() to cleanup up various KVM+VFIO flows.
- Minor cleanups.
guest_memfd:
- Return -EEXIST instead of -EINVAL if userspace attempts to bind a gmem
range to multiple memslots, and fix the test that was supposed to ensure
KVM returns -EEXIST.
- Treat memslot binding offsets and sizes as unsigned values to fix a bug
where KVM interprets a large "offset + size" as a negative value and allows
a nonsensical offset.
- Use the inode number instead of the page offset for the NUMA interleaving
index to fix a bug where the effective index would jump by two for
consecutive pages (the caller also adds in the page offset).
Selftests:
- Randomize the dirty log test's delay when reaping the bitmap on the first
pass, as always waiting only 1ms hid a KVM RISC-V bug as the test reaped the
bitmap before KVM could build up enough state to hit the bug.
- A pile of one-off fixes and cleanups.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm updates from Paolo Bonzini:
"arm64:
This is a bit of an odd merge window on the KVM/arm64 front. There
is absolutely no new feature in the pull request. It is purely
fixes, because it is simply becoming too hard to review new stuff
when so many AI-fuelled fixes hit the list.
- Significant cleanup of the vgic-v5 PPI support which was merged in
7.1. This makes the code more maintainable, and squashes a couple
of bugs in the meantime
- Set of fixes for the handling of the MMU in an NV context,
particularly VNCR-triggered faults. S1POE support is fixed as well
- Large set of pKVM fixes, mostly addressing recurring issues around
hypervisor tracking of donated pages in obscure cases where the
donation could fail and leave things in a bizarre state
- Fixes for the so-called "lazy vgic init", which resulted in
sleeping operations in non-preemptible sections. This turned out to
be far more invasive than initially expected..
- Reduce the overhead of L1/L2 context switch by not touching the FP
registers
- Fix the way non-implemented page sizes are dealt with when a guest
insist on using them for S2 translation
- The usual set of low-impact fixes and cleanups all over the map
Loongarch:
- On a request for lazy FPU load, load all FPU state that the VM
supports instead of enabling only the part (FPU, LSX or LASX) that
caused the FPU load request
- Some enhancements about interrupt injection
- Some bug fixes and other small changes
RISC-V:
- Batch G-stage TLB flushes for GPA range based page table updates
- Convert HGEI line management to fully per-HART
- Fix missing CSR dirty marking when FWFT state updated via ONE_REG
- Fix stale FWFT feature exposure to Guest/VM
- Speed up dirty logging write faults using MMU rwlock and atomic PTE
updates using cmpxchg() for permission-only changes
- Use flexible array for APLIC IRQ state
- Use kvm_slot_dirty_track_enabled() for logging enable check on a
memslot
- Avoid skipping valid pages in kvm_riscv_gstage_wp_range()
- Avoid skipping valid pages in kvm_riscv_gstage_unmap_range()
- Use endian-specific __lelong for NACL shared memory
S390:
- KVM_PRE_FAULT_MEMORY support
- Support for 2G hugepages
- Support for the ASTFLEIE 2 facility
- Support for fast inject using kvm_arch_set_irq_inatomic
- Fix potential leak of uninitialized bytes
- A few more misc gmap fixes
x86:
- Generic support for the more granular permissions allowed by EPT,
namely "read" (which was previously usurping the U bit) and
separate execution bits for kernel and userspace
- Do not assume that all page tables start with U=1/W=1/NX=0 at the
root, as AMD GMET needs to have U=0 at the root
- Introduce common assembly macros for use within Intel and AMD
vendor-specific vmentry code. This touches the SPEC_CTRL handling,
which is now entirely done in assembly for Intel (by reusing the
AMD code that already existed), and register save/restore which
uses some macro magic to compute the offsets in the struct. Both of
these are preparatory changes for upcoming APX support
- Clean up KVM's register tracking and storage, primarily to prepare
for APX support, which expands the maximum number of GPRs from 16
to 32
- Keep a single copy of the PDPTRs rather than two, since
architecturally there is just one
- Handle EXIT_FASTPATH_EXIT_USERSPACE in vendor code to ensure vendor
code gets a chance to handle things like reaping the PML buffer
- Update KVM's view of PV async enabling if and only if the MSR write
fully succeeds
- Fix a variety of issues where the emulator doesn't honor
guest-debug state, and clean up related code along the way
- Synthesize EPT Violation and #NPF "error code" bits when injecting
faults into L1 that didn't originate in hardware (in which case the
VMCS/VMCB doesn't hold relevant information)
- Add support for virtualizing (well, emulating) AMD's flavor of
CPL>0 CPUID faulting
- Clean up the GPR APIs so that KVM's use of "raw" is consistent, and
fix a variety of minor bugs along the way
- Fix an OOB memory access due to not checking the VP ID when
handling a Hyper-V PV TLB flush for L2
- Fix a bug in the mediated PMU's handling of fixed counters that
allowed the guest to bypass the PMU event filter
- Allow userspace to return EAGAIN when handling SNP and TDX
hypercalls, so the KVM can forward a "retry" status code to the
guest, and reserve all unused error codes for future usage
- Overhaul the TDP MMU => S-EPT code to move as much S-EPT specific
logic as possible into the TDX code, and to funnel (almost) all
S-EPT updates into a single chokepoint. The motivation is largely
to prepare for upcoming Dynamic PAMT support, but the cleanups are
nice to have on their own
- Plug a hole in shadow page table handling, where KVM fails to
recursively zap nested EPT/NPT shadow page tables when the nested
hypervisor tears down its own EPT/NPT page tables from the bottom
up
x86 (Intel):
- Support for nested MBEC (Mode-Based Execute Control), see above in
the generic section; also run with MBEC enabled even for non-nested
mode
- Use the kernel's "enum pg_level" in the TDX APIs instead of the
TDX-Module's level definitions (which are 0-based)
- Rework the TDX memory APIs to not require/assume that guest memory
is backed by "struct page" (in prepartion for guest_memfd hugepage
support)
- Fix a largely benign bug where KVM TDX would incorrectly state it
could emulate several x2APIC MSRs
- Use the "safe" WRMSR API when proxying LBR MSR writes as the
to-be-written value is guest controlled and completely unvalidated
x86 (AMD):
- Support for nested GMET (Guest Mode Execution Trap), see above in
the generic section; also run with GMET enabled even for non-nested
mode
- Fixes and minor cleanups to GHCB handling, on top of the earlier
work already merged into 7.1-rc
- Ensure KVM's copy of CR0 and CR3 are up-to-date prior to invoking
fastpath handlers
- Add support for virtualizing gPAT (KVM previously just used L1's
PAT when running L2)
- Fix goofs where KVM mishandles side effects (e.g. single-step and
PMC updates) when emulating VMRUN
- Fix a variety of bugs in AVIC's handling of x2APIC MSR
interception, most notably where KVM didn't disable interception of
IRR, ISR, and TMR regs
- Add support for virtualizing Host-Only/Guest-Only bits in the
mediated PMU
- Don't advertise support for unusable VM types, and account for VM
types that are disabled by firmware, e.g. to mitigate security
vulnerabilities
- Rewrite the SEV {en,de}crypt debug ioctls as they were riddle with
bugs and unnecessarily complicated, and add comprehensive tests
- Clean up and deduplicate the SEV page pinning code
- Fix minor goofs related to writing back CPUID information after
firmware rejects a CPUID page for an SNP vCPU
Generic:
- Rename invalidate_begin() to invalidate_start() throughout KVM to
follow the kernel's nomenclature, e.g. for mmu_notifiers
- Use guard() to cleanup up various KVM+VFIO flows
- Minor cleanups
guest_memfd:
- Return -EEXIST instead of -EINVAL if userspace attempts to bind a
gmem range to multiple memslots, and fix the test that was supposed
to ensure KVM returns -EEXIST
- Treat memslot binding offsets and sizes as unsigned values to fix a
bug where KVM interprets a large "offset + size" as a negative
value and allows a nonsensical offset
- Use the inode number instead of the page offset for the NUMA
interleaving index to fix a bug where the effective index would
jump by two for consecutive pages (the caller also adds in the page
offset)
Selftests:
- Randomize the dirty log test's delay when reaping the bitmap on the
first pass, as always waiting only 1ms hid a KVM RISC-V bug as the
test reaped the bitmap before KVM could build up enough state to
hit the bug
- A pile of one-off fixes and cleanups"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (326 commits)
KVM: x86/mmu: Ensure hugepage is in by slot before checking max mapping level
KVM: x86: Fix shadow paging use-after-free due to unexpected role
KVM: s390: Introducing kvm_arch_set_irq_inatomic fast inject
KVM: s390: Enable adapter_indicators_set to use mapped pages
KVM: s390: Add map/unmap ioctl and clean mappings post-guest
riscv: kvm: Use endian-specific __lelong for NACL shared memory
KVM: selftests: access_tracking_perf_test: bump number of NUMA nodes to 32
KVM: s390: vsie: Implement ASTFLEIE facility 2
KVM: s390: vsie: Refactor handle_stfle
s390/sclp: Detect ASTFLEIE 2 facility
KVM: s390: Minor refactor of base/ext facility lists
KVM: x86/mmu: move pdptrs out of the MMU
KVM: x86: check that kvm_handle_invpcid is only invoked with shadow paging
KVM: nSVM: invalidate cached PDPTRs across nested NPT transitions
KVM: nVMX: remove unnecessary code in prepare_vmcs02_rare
KVM: x86: remove nested_mmu from mmu_is_nested()
KVM: arm64: vgic-its: Make ABI commit helpers return void
KVM: s390: Initialize KVM_S390_GET_CMMA_BITS memory
LoongArch: KVM: Add missing slots_lock for device register/unregister
LoongArch: KVM: Validate irqchip index in irqfd routing
...
|
||
|
Linus Torvalds
|
8c13415c8a |
[GIT PULL for v7.2] media updates
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Merge tag 'media/v7.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- v4l2:
- core: fix subdev sensor ownership
- subdev: Allow accessing routes with STREAMS client capability
- ctrls: Add validation for HEVC active reference counts and
background detection control
- common: Add YUV24 format info and has_alpha helper
- vb2: Change vb2_read() and vb2_write() return types to ssize_t
- i2c: cvs: Add driver of Intel Computer Vision Sensing Controller(CVS)
- atmel-isc: remove deprecated driver
- cec: Add CEC Latency Indication Protocol (LIP) support
- imon: Add iMON VFD HID OEM v1.2 key mappings
- AVMatrix: new HWS capture driver
- isp4: new AMD capture driver
- qcom:
- iris: Add hierarchical coding, B-frame, and Long-Term Reference
support for encoder
- camss: Add SM6350 platform support
- venus: Add SM6115 platform support
- chips-media: wave5: Add support for Packed YUV422, CBP profile, and
background detection
- csi2rx: Add multistream support and 32 dma chans
- Several cleanups and fixes
* tag 'media/v7.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (394 commits)
media: v4l2-fwnode: Fix subdev owner overwritten in v4l2_async_register_subdev_sensor()
media: qcom: iris: vdec: allow GEN2 decoding into 10bit format
media: qcom: iris: vdec: update find_format to handle 8bit and 10bit formats
media: qcom: iris: vdec: update size and stride calculations for 10bit formats
media: qcom: iris: gen2: add support for 10bit decoding
media: qcom: iris: add QC10C & P010 buffer size calculations
media: qcom: iris: add helpers for 8bit and 10bit formats
media: qcom: iris: Fix FPS calculation and VPP FW overhead
media: qcom: camss: vfe-340: Support for PIX client
media: qcom: camss: vfe-340: Proper client handling
media: qcom: camss: csid-340: Enable PIX interface routing
media: qcom: camss: csid-340: Add port-to-interface mapping
media: qcom: camss: csid-340: Switch to generic CSID_CFG/CTRL registers
media: iris: Initialize HFI ops after firmware load in core init
media: iris: drop struct iris_fmt
media: iris: Add platform data for X1P42100
media: iris: Add hardware power on/off ops for X1P42100
media: iris: optimize COMV buffer allocation for VPU3x and VPU4x
media: iris: add FPS calculation and VPP FW overhead in frequency formula
media: qcom: iris: Simplify COMV size calculation
...
|
||
|
Linus Torvalds
|
3dc7c00116 |
NFSD 7.2 Release Notes
Jeff Layton wired up netlink upcalls for the auth.unix.ip and auth.unix.gid caches in SunRPC and the svc_export and nfsd.fh caches in NFSD. The new kernel-user API is more extensible and lays the groundwork for retiring the old pipe interface. The default NFS r/w block size rises to 4MB on hosts with at least 16GB of RAM, reducing per-RPC overhead on fast networks. Smaller machines keep their previously computed default, and the value remains tunable through /proc/fs/nfsd/max_block_size. Chuck Lever converted the server's RPCSEC GSS Kerberos code to the kernel's shared crypto/krb5 library. The conversion retires and removes SunRPC's bespoke implementation of Kerberos v5, but keeps RPCSEC GSS-API. Continuing the xdrgen migration that converted the NLMv4 server XDR layer in v7.1, Chuck Lever converted the NLM version 3 server-side XDR layer from hand-written C to xdrgen-generated code. As with the NLMv4 conversion in v7.1, the goals are improved memory safety, lower maintenance burden, and groundwork for generation of Rust code for this layer instead of C. Chuck Lever fixed an issue where lingering NFSv4 state pins a mounted file system after it is unexported. A new netlink-based mechanism can now release NLM locks and NFSv4 state by client address, by filesystem, and by export. Now an administrator can quiesce an export cleanly before unmounting it. The remaining patches are bug fixes, clean-ups, and minor optimizations, including a batch of memory-leak and use-after-free fixes in the ACL, lockd, and TLS handshake paths, many of them reported by Chris Mason. Sincere thanks to all contributors, reviewers, testers, and bug reporters who participated in the v7.2 NFSD development cycle. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEKLLlsBKG3yQ88j7+M2qzM29mf5cFAmox5BcACgkQM2qzM29m f5eFJQ//QlyZCt0BlzeBrGHJB41yrMZkZGSJsPaZPfvNnjIQPwd6WH3d6i1vygvC HgC+KTF/8LLuFx14m17M6FBCujixNoknMLyp74vRPZOSCoXilP/jzlDoVWwgwv73 E0AkKXyij1QFToIh7NP/ClX+Zpc9yoCR3/RWri7ud400z1mlvFBk8NA7E6pb+AzT 89lKFgkubSQVnHFRdIAgb3G/AkZzt35O6hzPA6thtwkb8MS2knE27L9HNc2InQ/K 71QjQj09052tcXOJRHlg7Xj6AeCyPteCqxsA03qMo2mmqRiSBVV+5y6czawxdHk8 yt9cDloUu+ZynhH4qktv3i8lX7dPcYNfIcMora71LAswDE5Ud3c/EG6zleA5DnzX cgUaS8VkbfLyHAlvPRl9DroizsBgrr/qjuwUqewoY/wJCpyEBtCGRxLKI0MS2Ivo BvgdXE74uCyOGZ2EYOqaocGejMtXt1GGpf2Wj5/jyDDUABEhwTptoTIlbBcWQbf6 7ZRlxjwx7kaMMtmag0ZEhkh42ujoHF3NzNDDD4hY1M6twgF+0uofJPLb5eK4JZak FDKV38iiwqq2/bWOKGnaFQBV1Hn/0569rxFku2Z0O+wWNBXhiZ5wezw84GoYaCt/ AYSDFYnI4FOrHurdmgZUyr04W2toXWN6mV3IqbDIIx5eXyWEKvU= =xAeq -----END PGP SIGNATURE----- Merge tag 'nfsd-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux Pull nfsd updates from Chuck Lever: "Jeff Layton wired up netlink upcalls for the auth.unix.ip and auth.unix.gid caches in SunRPC and the svc_export and nfsd.fh caches in NFSD. The new kernel-user API is more extensible and lays the groundwork for retiring the old pipe interface. The default NFS r/w block size rises to 4MB on hosts with at least 16GB of RAM, reducing per-RPC overhead on fast networks. Smaller machines keep their previously computed default, and the value remains tunable through /proc/fs/nfsd/max_block_size. Chuck Lever converted the server's RPCSEC GSS Kerberos code to the kernel's shared crypto/krb5 library. The conversion retires and removes SunRPC's bespoke implementation of Kerberos v5, but keeps RPCSEC GSS-API. Continuing the xdrgen migration that converted the NLMv4 server XDR layer in v7.1, Chuck Lever converted the NLM version 3 server-side XDR layer from hand-written C to xdrgen-generated code. As with the NLMv4 conversion in v7.1, the goals are improved memory safety, lower maintenance burden, and groundwork for generation of Rust code for this layer instead of C. Chuck Lever fixed an issue where lingering NFSv4 state pins a mounted file system after it is unexported. A new netlink-based mechanism can now release NLM locks and NFSv4 state by client address, by filesystem, and by export. Now an administrator can quiesce an export cleanly before unmounting it. The remaining patches are bug fixes, clean-ups, and minor optimizations, including a batch of memory-leak and use-after-free fixes in the ACL, lockd, and TLS handshake paths, many of them reported by Chris Mason. Sincere thanks to all contributors, reviewers, testers, and bug reporters who participated in the v7.2 NFSD development cycle" * tag 'nfsd-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: (106 commits) svcrdma: wake sq waiters when the transport closes nfsd: reset write verifier on deferred writeback errors nfsd: avoid leaking pre-allocated openowner on unconfirmed retry race sunrpc: wait for in-flight TLS handshake callback when cancel loses race sunrpc: pin svc_xprt across the asynchronous TLS handshake callback nfsd: fix posix_acl leak on SETACL decode failure nfsd: fix posix_acl leak and ignored error in nfsd4_create_file nfsd: check get_user() return when reading princhashlen nfsd: fix inverted cp_ttl check in async copy reaper nfsd: fix dead ACL conflict guard in nfsd4_create NFSD: Fix SECINFO_NO_NAME decode error cleanup sunrpc: harden rq_procinfo lifecycle to prevent double-free SUNRPC: Return an error from xdr_buf_to_bvec() on overflow SUNRPC: Bound-check xdr_buf_to_bvec() stores before writing nfsd: release layout stid on setlease failure lockd: Avoid hashing uninitialized bytes in nlm4svc_lookup_file() lockd: Plug nlm_file refcount leak on cached nlm_do_fopen() failure lockd: Plug nlm_file leak when nlm_do_fopen() fails Revert "NFSD: Defer sub-object cleanup in export put callbacks" Revert "svcrdma: Use contiguous pages for RDMA Read sink buffers" ... |
||
|
Linus Torvalds
|
9e7e663345 |
RDMA v7.2 merge window
Many AI driven bug fixes, and several big driver API cleanups
- Driver bug fixes and minor cleanups in mlx5, hns, rxe, efa, siw, rtrs,
mana, irdma, mlx4. Commonly error path flows, integer arithmetic
overflows on unsafe data, out of bounds access, and use after free
issues under races.
- Second half of the new udata API for drivers focusing on uAPI response
- bnxt_re supports more options for QP creation that will allow a dv
path in rdma-core
- Untangle the module dependencies so drivers don't link to ib_uverbs.ko
as was originall intended
- Provide a new way to handle umems with a consistent simplified uAPI and
update several drivers to use it. This brings dmabuf support to more
places and more drivers
- Support for mlx5 rate limit and packet pacing for UD and UC
- A batch of fixes for the new shared FRMR pools infrastructure
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma updates from Jason Gunthorpe:
"Many AI driven bug fixes, and several big driver API cleanups
- Driver bug fixes and minor cleanups in mlx5, hns, rxe, efa, siw,
rtrs, mana, irdma, mlx4. Commonly error path flows, integer
arithmetic overflows on unsafe data, out of bounds access, and use
after free issues under races.
- Second half of the new udata API for drivers focusing on uAPI
response
- bnxt_re supports more options for QP creation that will allow a dv
path in rdma-core
- Untangle the module dependencies so drivers don't link to
ib_uverbs.ko as was originall intended
- Provide a new way to handle umems with a consistent simplified uAPI
and update several drivers to use it. This brings dmabuf support to
more places and more drivers
- Support for mlx5 rate limit and packet pacing for UD and UC
- A batch of fixes for the new shared FRMR pools infrastructure"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (148 commits)
RDMA/irdma: Replace waitqueue and flag with completion
RDMA/hns: Fix memory leak of bonding resources
RDMA/rtrs-srv: Bound RDMA-Write length to chunk size in rdma_write_sg
docs: infiniband: correct name of option to enable the ib_uverbs module
RDMA/bnxt_re: Reject GET_TOGGLE_MEM when toggle page was not allocated
RDMA/bnxt_re: Fail DBR related page allocation UAPIs if the feature is disabled
RDMA/bnxt_re: Avoid repeated requests to allocate WC pages
RDMA/bnxt_re: Proper rollback if the ioremap fails
RDMA/bnxt_re: Add a max slot check for SQ
RDMA/bnxt_re: Avoid displaying the kernel pointer
RDMA/bnxt_re: Free CQ toggle page after firmware teardown
RDMA/bnxt_re: Free SRQ toggle page after firmware teardown
RDMA/bnxt_re: Initialize dpi variable to zero
ABI: sysfs-class-infiniband: minor cleanup
RDMA/mlx5: Release the HW‑provided UAR index rather than the SW one
RDMA/mlx5: Fix undefined shift of user RQ WQE size
RDMA/mlx5: Remove raw RSS QP restrack tracking
RDMA/mlx5: Remove DCT restrack tracking
RDMA/mlx5: Drop FRMR pool handle on UMR revoke failure
RDMA/core: Add ib_frmr_pool_drop for unrecoverable handles
...
|
||
|
Chenyu Chen
|
e239d3e3cb |
drm/edid: parse panel type from DisplayID 2.x Display Parameters
Parse the Display Parameters Data Block (tag 0x21) defined in DisplayID v2.1a Section 4.2.6. Extract the Display Device Technology field from the color depth and device technology byte, which indicates whether the panel uses LCD or OLED technology. Add a panel_type field to struct drm_display_info and populate it during DisplayID iteration so downstream drivers can use it for panel-type-dependent behavior. Add DRM_MODE_PANEL_TYPE_LCD to the UAPI panel type property alongside the existing OLED value. Assisted-by: Copilot:Claude-Opus-4.6 Signed-off-by: Chenyu Chen <chen-yu.chen@amd.com> Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> |
||
|
Yifan Zhang
|
445075e199 |
drm/amdgpu: add ioctl to handle RAS poison error
Add a new DRM_IOCTL_AMDGPU_PROC_OPTIONS ioctl with the AMDGPU_PROC_OPTIONS_OP_KFD_SIGBUS_DELAY option, allowing userspace (ROCr) to control per-process SIGBUS delivery. Userspace for this can be found at: https://github.com/ROCm/rocm-systems/pull/6190 Reviewed-by: Lijo Lazar <lijo.lazar@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Yifan Zhang <yifan1.zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> |
||
|
Linus Torvalds
|
e771677c93 |
iommufd v7.2 merge window pull request
All various fixes:
- Typo breaking the veventq uAPI for 32 bit userspace
- Several Sashiko found errors in the veventq and fault fd paths
- Fix incorrect use of dmabuf locks, and possible races with iommufd
destroy and dmabuf revoke
- Sashiko errors found in the uAPI validation for IOMMU_HWPT_INVALIDATE
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Merge tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd
Pull iommufd updates from Jason Gunthorpe:
"All various fixes:
- Typo breaking the veventq uAPI for 32 bit userspace
- Several Sashiko found errors in the veventq and fault fd paths
- Fix incorrect use of dmabuf locks, and possible races with iommufd
destroy and dmabuf revoke
- Sashiko errors found in the uAPI validation for IOMMU_HWPT_INVALIDATE"
* tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd:
iommu: Avoid copying the user array twice in the full-array copy helper
iommufd/selftest: Add invalidation entry_num and entry_len boundary tests
iommufd: Set upper bounds on cache invalidation entry_num and entry_len
iommufd: Clarify IOAS_MAP_FILE dma-buf support
iommufd: Destroy the pages content after detaching from dmabuf
iommufd: Take dma_resv lock before dma_buf_unpin() in release path
iommufd/selftest: Cover invalid read counts on vEVENTQ FD
iommufd: Avoid partial fault group delivery in iommufd_fault_fops_read()
iommufd: Break the loop on failure in iommufd_fault_fops_read()
iommufd: Reject invalid read count in iommufd_fault_fops_read()
iommufd: Propagate allocation failure in iommufd_veventq_deliver_fetch()
iommufd: Reject invalid read count in iommufd_veventq_fops_read()
iommufd: Rewind header length in done if iommufd_veventq_fops_read() fails
iommufd/selftest: Add boundary tests for veventq_depth
iommufd: Set veventq_depth upper bound
iommufd: Move vevent memory allocation outside spinlock
iommufd: Fix data_len byte-count vs element-count mismatch
iommufd: Use sizeof(*hdr) instead of sizeof(hdr) in veventq read
|
||
|
Linus Torvalds
|
d076a8d3b9 |
IOMMU Updates for Linux v7.2
Including:
Core Code:
- Fix dma-iommu scatterlist length handling in the P2PDMA path.
- Extend the generic IOMMU page-table code with detailed gather
support for more precise invalidations.
- Add pending-gather tracking to generic page-table invalidation
handling.
- Add support for smaller virtual address sizes in the generic AMDv1
page-table format, including KUnit coverage.
- Fix page-size bitmap calculation for smaller VA configurations.
- Rework Arm io-pgtable allocation/freeing to consistently use the
iommu-pages API and address-conversion helpers.
- Add PCI ATS infrastructure for devices that require ATS, including
always-on ATS handling for pre-CXL devices.
AMD IOMMU:
- Fix several IOTLB invalidation details, including PDE handling,
flush-all behavior, and command address encoding.
- Honor IVINFO[VASIZE] when deriving address limits.
- Fix premature loop termination in init_iommu_one().
- Add Hygon family 18h model 4h IOAPIC support.
- Clean up legacy-mode handling, stale comments, dead IVMD
exclusion-range code, and unused address-size macros.
Arm SMMU / Arm SMMU v3:
- SMMUv2:
- Device-tree binding updates for Qualcomm Hawi, Nord and Shikra
SoCs.
- Constain the clocks which can be specified for recent Qualcomm
SoCs.
- Fix broken compatible string for Qualcomm prefetcher
configuration an add new entry for the Glymur MDSS.
- Ensure SMMU is powered-up when writing context bank for Adreno
client.
- SMMUv3:
- Fix off-by-one in queue allocation retry loop.
- Enable hardware update of access/dirty bits from the SMMU.
- Re-jig command construction to use separate inline helpers for
each command type.
Intel VT-d:
- Add the PCI segment number to DMA fault messages.
- Improve support for non-PRI mode SVA.
- Ensure atomicity during context entry teardown.
- Fix RB-tree corruption in the probe error path.
RISC-V IOMMU:
- Add NAPOT range invalidation support.
- Use detailed gather information for invalidation decisions.
- Compute the best stride for single invalidations.
- Advertise Svpbmt support to the generic page-table code.
- Add capability definitions and clean up command macro encoding.
VeriSilicon IOMMU:
- Add a new VeriSilicon IOMMU driver.
- Add devicetree binding documentation and MAINTAINERS coverage.
- Add the RK3588 VeriSilicon IOMMU node.
- Apply small cleanups and warning fixes in the new driver.
Rockchip IOMMU:
- Disable the fetch DTE time limit.
Apple DART:
- Correct a stale CONFIG_PCIE_APPLE macro name in a comment.
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Merge tag 'iommu-updates-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux
Pull iommu updates from Joerg Roedel:
"Core Code:
- Fix dma-iommu scatterlist length handling in the P2PDMA path
- Extend the generic IOMMU page-table code with detailed gather
support for more precise invalidations
- Add pending-gather tracking to generic page-table invalidation
handling
- Add support for smaller virtual address sizes in the generic AMDv1
page-table format, including KUnit coverage
- Fix page-size bitmap calculation for smaller VA configurations
- Rework Arm io-pgtable allocation/freeing to consistently use the
iommu-pages API and address-conversion helpers
- Add PCI ATS infrastructure for devices that require ATS, including
always-on ATS handling for pre-CXL devices
AMD IOMMU:
- Fix several IOTLB invalidation details, including PDE handling,
flush-all behavior, and command address encoding
- Honor IVINFO[VASIZE] when deriving address limits
- Fix premature loop termination in init_iommu_one()
- Add Hygon family 18h model 4h IOAPIC support
- Clean up legacy-mode handling, stale comments, dead IVMD
exclusion-range code, and unused address-size macros
Arm SMMU / Arm SMMU v3:
- SMMUv2:
- Device-tree binding updates for Qualcomm Hawi, Nord and Shikra
SoCs
- Constrain the clocks which can be specified for recent Qualcomm
SoCs
- Fix broken compatible string for Qualcomm prefetcher
configuration an add new entry for the Glymur MDSS
- Ensure SMMU is powered-up when writing context bank for Adreno
client
- SMMUv3:
- Fix off-by-one in queue allocation retry loop
- Enable hardware update of access/dirty bits from the SMMU
- Re-jig command construction to use separate inline helpers for
each command type
Intel VT-d:
- Add the PCI segment number to DMA fault messages
- Improve support for non-PRI mode SVA
- Ensure atomicity during context entry teardown
- Fix RB-tree corruption in the probe error path
RISC-V IOMMU:
- Add NAPOT range invalidation support
- Use detailed gather information for invalidation decisions
- Compute the best stride for single invalidations
- Advertise Svpbmt support to the generic page-table code
- Add capability definitions and clean up command macro encoding
VeriSilicon IOMMU:
- Add a new VeriSilicon IOMMU driver
- Add devicetree binding documentation and MAINTAINERS coverage
- Add the RK3588 VeriSilicon IOMMU node
- Apply small cleanups and warning fixes in the new driver
Rockchip IOMMU:
- Disable the fetch DTE time limit
Apple DART:
- Correct a stale CONFIG_PCIE_APPLE macro name in a comment"
* tag 'iommu-updates-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux: (66 commits)
iommu/dma-iommu: Fix wrong scatterlist length assignment in P2PDMA path
iommu/amd: Control INVALIDATE_IOMMU_PAGES PDE from the gather
iommu/amd: Make CMD_INV_IOMMU_ALL_PAGES_ADDRESS match the spec
iommu/amd: Have amd_iommu_domain_flush_pages() use last
iommu/amd: Pass last in through to build_inv_address()
iommu/amd: Simplify build_inv_address()
iommu/apple-dart: correct CONFIG_PCIE_APPLE macro name in comment
iommu/vt-d: Fix RB-tree corruption in probe error path
iommu/vt-d: Improve IOMMU fault information
iommu/vt-d: Remove typo from pasid_pte_config_nested()
iommu/vt-d: Clear Present bit before tearing down scalable-mode context entry
iommu/vt-d: Avoid WARNING in sva unbind path
dt-bindings: arm-smmu: Correct and add constraints for Hawi, Shikra and Kaanapali
dt-bindings: arm-smmu: Add compatible for Qualcomm Nord SoC
iommu/amd: Don't split flush for amd_iommu_domain_flush_all()
iommu/rockchip: disable fetch dte time limit
iommu/arm-smmu-v3: Allow ATS to be always on
PCI: Allow ATS to be always on for pre-CXL devices
PCI: Add pci_ats_required() for CXL.cache capable devices
iommu/vsi: Use list_for_each_entry()
...
|
||
|
Linus Torvalds
|
d44ade05aa |
virtio,vhost,vdpa: features, fixes
- new virtio CAN driver
- support for LoongArch architecture in fw_cfg
- support for firmware notifications in vdpa/octeon_ep
- support for VFs in virtio core
- fixes, cleanups all over the place, notably
- vhost: fix vhost_get_avail_idx for a non empty ring
fixing an significant old perf regression
- plus READ_ONCE annotations mean virtio ring is now
free of KCSAN warnings
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio updates from Michael Tsirkin:
- new virtio CAN driver
- support for LoongArch architecture in fw_cfg
- support for firmware notifications in vdpa/octeon_ep
- support for VFs in virtio core
- fixes, cleanups all over the place, notably:
- vhost: fix vhost_get_avail_idx for a non empty ring
fixing an significant old perf regression
- READ_ONCE() annotations mean virtio ring is now
free of KCSAN warnings
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (37 commits)
can: virtio: Fix comment in UAPI header
can: virtio: Add virtio CAN driver
virtio: add num_vf callback to virtio_bus
fw_cfg: Add support for LoongArch architecture
vdpa/octeon_ep: fix IRQ-to-ring mapping in interrupt handler
vdpa/octeon_ep: Add vDPA device event handling for firmware notifications
vdpa/octeon_ep: Use 4 bytes for mailbox signature
vdpa/octeon_ep: Fix PF->VF mailbox data address calculation
vhost_task_create: kill unnecessary .exit_signal initialization
vhost: remove unnecessary module_init/exit functions
vdpa/mlx5: Use kvzalloc_flex() for MTT command memory
vdpa_sim_net: switch to dynamic root device
vdpa_sim_blk: switch to dynamic root device
virtio-mem: Destroy mutex before freeing virtio_mem
virtio-balloon: Destroy mutex before freeing virtio_balloon
tools/virtio: fix build for kmalloc_obj API and missing stubs
virtio_ring: Add READ_ONCE annotations for device-writable fields
vduse: fix compat handling for VDUSE_IOTLB_GET_FD/VDUSE_VQ_GET_INFO
tools/virtio: check mmap return value in vringh_test
vhost/net: complete zerocopy ubufs only once
...
|
||
|
Linus Torvalds
|
3dc0df0339 |
VFIO updates for v7.2-rc1
- Fix out-of-tree vfio selftest builds with make O=. (Jason Gunthorpe)
- Allow vfio selftests to build when ARCH=x86 is used for 64-bit x86
builds. (David Matlack)
- Tighten vfio selftest infrastructure with stricter builds, safer
path handling, sysfs helpers, and reusable device/VF-token setup.
Build on that to add the SR-IOV UAPI selftest across supported
IOMMU modes. (Raghavendra Rao Ananta)
- Conclude earlier vfio PCI BAR work already taken as v7.1 fixes by
replacing vfio_pci_core_setup_barmap() and direct barmap[] access
with vfio_pci_core_get_iomap(). Fix resulting sparse warnings.
(Matt Evans)
- Simplify hisi_acc vfio-pci variant driver device-info reads by
using the mailbox's new direct command-based read helper.
(Weili Qian)
- Avoid duplicate reset handling in the Xe vfio-pci variant driver
reset-done path. (GuoHan Zhao)
- Resolve a lockdep circular dependency splat by tracking active
VFs with a private sriov_active flag rather than calling
pci_num_vf() under memory_lock. (Raghavendra Rao Ananta)
- Add CXL DVSEC-based readiness polling for Blackwell-Next in the
nvgrace-gpu vfio-pci variant driver, including interruptible,
lockless waits to support worst case spec defined timeouts.
(Ankit Agrawal)
- Prevent vfio_mig_get_next_state() from spinning forever on blocked
migration state transition. (Junrui Luo)
- Fix a qat vfio variant driver migration resume race by taking the
migration file lock before boundary checks. (Giovanni Cabiddu)
- Add explicit dependencies between vfio selftest output object files
and output directories to ensure directories are always created.
(David Matlack)
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Merge tag 'vfio-v7.2-rc1' of https://github.com/awilliam/linux-vfio
Pull VFIO updates from Alex Williamson:
- Fix out-of-tree vfio selftest builds with make O= (Jason Gunthorpe)
- Allow vfio selftests to build when ARCH=x86 is used for 64-bit x86
builds (David Matlack)
- Tighten vfio selftest infrastructure with stricter builds, safer path
handling, sysfs helpers, and reusable device/VF-token setup. Build on
that to add the SR-IOV UAPI selftest across supported IOMMU modes
(Raghavendra Rao Ananta)
- Conclude earlier vfio PCI BAR work already taken as v7.1 fixes by
replacing vfio_pci_core_setup_barmap() and direct barmap[] access
with vfio_pci_core_get_iomap(). Fix resulting sparse warnings (Matt
Evans)
- Simplify hisi_acc vfio-pci variant driver device-info reads by using
the mailbox's new direct command-based read helper (Weili Qian)
- Avoid duplicate reset handling in the Xe vfio-pci variant driver
reset-done path (GuoHan Zhao)
- Resolve a lockdep circular dependency splat by tracking active VFs
with a private sriov_active flag rather than calling pci_num_vf()
under memory_lock (Raghavendra Rao Ananta)
- Add CXL DVSEC-based readiness polling for Blackwell-Next in the
nvgrace-gpu vfio-pci variant driver, including interruptible,
lockless waits to support worst case spec defined timeouts (Ankit
Agrawal)
- Prevent vfio_mig_get_next_state() from spinning forever on blocked
migration state transition (Junrui Luo)
- Fix a qat vfio variant driver migration resume race by taking the
migration file lock before boundary checks (Giovanni Cabiddu)
- Add explicit dependencies between vfio selftest output object files
and output directories to ensure directories are always created
(David Matlack)
* tag 'vfio-v7.2-rc1' of https://github.com/awilliam/linux-vfio:
vfio: selftests: Ensure libvfio output dirs are always created
vfio/qat: fix f_pos race in qat_vf_resume_write()
vfio: prevent infinite loop in vfio_mig_get_next_state() on blocked arc
vfio/nvgrace-gpu: Add Blackwell-Next GPU readiness check via CXL DVSEC
vfio/pci: Use a private flag to prevent power state change with VFs
vfio/pci: Fix sparse warning in vfio_pci_core_get_iomap()
vfio/xe: avoid duplicate reset in xe_vfio_pci_reset_done
hisi_acc_vfio_pci: simplify the command for reading device information
vfio/pci: Replace vfio_pci_core_setup_barmap() with vfio_pci_core_get_iomap()
vfio: selftests: Add tests to validate SR-IOV UAPI
vfio: selftests: Add helpers to alloc/free vfio_pci_device
vfio: selftests: Add helper to set/override a vf_token
vfio: selftests: Expose more vfio_pci_device functions
vfio: selftests: Extend container/iommufd setup for passing vf_token
vfio: selftests: Introduce a sysfs lib
vfio: selftests: Introduce snprintf_assert()
vfio: selftests: Add -Wall and -Werror to the Makefile
vfio: selftests: Allow builds when ARCH=x86
vfio: selftests: Fix out-of-tree build with make O=
|
||
|
Linus Torvalds
|
70cb95c736 |
soc: drivers for 7.2
There are a few added drivers, but mostly the normal maintenance to drivers
for firmware, memory controller and other soc specific hadware:
- The NXP QuickEngine gets modern MSI support, which allows some cleanups to
the GICv3 irqchip chip driver
- A new SoC specific driver for the Renesas R-Car MFIS unit is added,
encapsulating support for the on-chip mailbox and hwspinlock
implementations that are not easily separated into individual
drivers
- The Qualcomm SoC drivers add support for additional SoC implementations,
and flexiblity around power managedment for the serial-engine driver
as well as probing the LLCC driver using custom hardware descriptions
inside of the device itself.
- Added support for the Samsung thermal management unit
- A cleanup to the Tegra 'PMC' driver interfaces to remove legacy
APIs and allow multiple PMC instances everywhere.
- Updates to the TI SCI and KNAS drivers to improve suspend/resume
support.
- Minor driver changes for mediatek, xilinx, allwinner, aspeed, tegra,
broadcom, amd, microchip and starfive specific drivers
- Memory controller updates for Tegra and Renesas for additional SoC
types and other improvements.
- Firmware driver updates for Arm FF-A, SMCCC and SCMI interfaces,
to update driver probing, object lifetimes and address minor bugs.
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Merge tag 'soc-drivers-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC driver updates from Arnd Bergmann:
"There are a few added drivers, but mostly the normal maintenance to
drivers for firmware, memory controller and other soc specific
hardware:
- The NXP QuickEngine gets modern MSI support, which allows some
cleanups to the GICv3 irqchip chip driver
- A new SoC specific driver for the Renesas R-Car MFIS unit is added,
encapsulating support for the on-chip mailbox and hwspinlock
implementations that are not easily separated into individual
drivers
- The Qualcomm SoC drivers add support for additional SoC
implementations, and flexibility around power management for the
serial-engine driver as well as probing the LLCC driver using
custom hardware descriptions inside of the device itself.
- Added support for the Samsung thermal management unit
- A cleanup to the Tegra 'PMC' driver interfaces to remove legacy
APIs and allow multiple PMC instances everywhere.
- Updates to the TI SCI and KNAS drivers to improve suspend/resume
support.
- Minor driver changes for mediatek, xilinx, allwinner, aspeed,
tegra, broadcom, amd, microchip and starfive specific drivers
- Memory controller updates for Tegra and Renesas for additional SoC
types and other improvements.
- Firmware driver updates for Arm FF-A, SMCCC and SCMI interfaces, to
update driver probing, object lifetimes and address minor bugs"
* tag 'soc-drivers-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (189 commits)
Revert "firmware: zynqmp: Add dynamic CSU register discovery and sysfs interface"
Revert "Documentation: ABI: add sysfs interface for ZynqMP CSU registers"
memory: tegra234: drop dead NULL check in tegra234_mc_icc_aggregate()
memory: tegra264: drop redundant tegra264_mc_icc_aggregate()
memory: tegra186-emc: stop borrowing MC aggregate hook for EMC
soc: aspeed: cleanup dead default for ASPEED_SOCINFO
firmware: tegra: bpmp: Add support for multi-socket platforms
firmware: tegra: bpmp: Propagate debugfs errors
soc/tegra: pmc: Add Tegra238 support
soc/tegra: pmc: Restrict power-off handler to Nexus 7
soc/tegra: pmc: Populate powergate debugfs only when needed
soc/tegra: pmc: Move legacy code behind CONFIG_ARM guard
soc/tegra: pmc: Remove unused legacy functions
soc/tegra: pmc: Create PMC context dynamically
firmware: samsung: acpm: remove compile-testing stubs
firmware: samsung: acpm: Add devm_acpm_get_by_phandle helper
firmware: samsung: acpm: Add TMU protocol support
firmware: samsung: acpm: Make acpm_ops const and access via pointer
firmware: samsung: acpm: Drop redundant _ops suffix in acpm_ops members
firmware: samsung: acpm: Annotate rx_data->cmd with __counted_by_ptr
...
|
||
|
Linus Torvalds
|
4b99990cdf |
drm-next for 7.2-rc1
core: - add docbook for DRM_IOCTL_SYNCOBJ_EVENTFD - change signature of drm_connector_attach_hdr_output_metadata_property - dedup counter and timestamp retrieval in vblank code - parse AMD VSDB v3 in CTA extension blocks - add P230, Y7, XYYY2101010, T430, XVUY210101010 formats - don't call drop master on file close if not master - use drm_printf_indent in atomic / bridge - fix 32b format descriptions - docs: fix toctree - hdmi: add common TMDS character rates - fix drm_syncobj_find_fence leak rust: - introduce Higher-Ranked lifetime types - replace drvdata with scoped registration data - add GPUVM immediate mode abstraction for rust GPU drivers - introduce DeviceContext type state for drm::Device bridge: - clarify drm_bridge_get/put - create drm_get_bridge_by_endpoint and use it - analogix_dp: add panel probing - ite-it6211 - use drm audio hdmi helpers buddy: - add lockdep annotations dp: - add PR and VRR updates - mst: fix buffer overflows - add Adaptive Sync SDP decoding support - fix OOB reads in dp-mst ttm: - bump fpfn/lpfn to 64-bit scheduler: - change default to fair scheduler - map runqueue 1:1 with scheduler dma-buf: - port selftests to kunit - convert dma-buf system/heap allocators to module - add separate DMABUF_HEAPS_SYSTEM_CC_SHARED Kconfig udmabuf: - revert hugetlb support - fix error with CONFIG_DMA_API_DEBUG dma-fence: - fix tracepoints lifetime - remove unused signal on any support ras: - add clear error counter netlink command to drm ras gpusvm: - reject VMAs with VM_IO or VM_PFNMAP when creating SVM ranges - use IOVA allocations pagemap: - use IOVA allocations panels: - update to use ref counts - add support for CSW PNB601LS1-2, LGD LP116WHA-SPB1 - add support for waveshare panels - CMN N116BCN-EA1, CMN N140HCA-EEK, IVO M140NWFQ R5, - IVO, R140NWFW R0, BOE NT140*, BOE NV133FHM-N4F, - AUO B140*, AUO B133HAN06.6 and AUO B116XTN02.3 eDP panels - Surface Pro 12 Panel xe: - add CRI PCI-IDs - debugfs add multi-lrc info - engine init cleanup - PF fair scheduling auto provisioning - system controller support for CRI/Xe3p - PXP state machine fixes - Reset/wedge/unload corner case fixes - Wedge path memory allocation fixes - PAT type cleanups - Reject unsafe PAT for CPU cached memory - OA improvements for CRI device memory - kernel doc syntax in xe headers - xe_drm.h documentation fixes - include guard cleanups - VF CCS memory pool - i915/xe step unification - Xe3p GT tuning fixes - forcewake cleanup in GT and GuC - admin-only PF mode - enable hwmon energy attributes for CRI - enable GT_MI_USER_INTERRUPT - refactor emit functions - oa workarounds - multi_queue: allow QUEUE_TIMESTAMP register - convert stolen memory to ttm range manager - use xe2 style blitter as a feature flag - make drm_driver const - add/use IRQ page to HW engine definition - fix oops when display disabled i915: - enable PIPEDMC_ERROR interrupt - more common display code refactoring - restructure DP/HDMI sink format handling - eliminate FB usage from lowlevel pinning code - panel replay bw optimization - integrate sharpness filter into the scaler - new fb_pin abstraction for xe/i915 fb transparent handling - skip inactive MST connectors on HDCP - start switching to display specific registers - use polling when irq unavailable - Adaptive-sync SDP prep amdgpu: - use drm_display_info for AMD VSDB data - Initial HDMI 2.1 FRL support - Initial DCN 4.2.1 support - GART fixes for non-4k pages - GC 11.5.6/SDMA 6.4.0/and other new IPs - GFX9/DCE6/Hawaii/SDMA4/GART/Userq fixes - Finish support for using multiple SDMA queues for TTM operations - SWSMU updates - GC 12.1 updates - SMU 15.0.8 updates - DCN 4.2 updates - DC type conversion fixes - Enable DC power module - Replay/PSR updates - SMU 13.x updates - Compute queue quantum MQD updates - ASPM fix - Align VKMS with common implementation - DC analog support fixes - UVD 3 fixes - TCC harvesting fixes for SI - GC 11 APU module reload fix - NBIO 6.3.2 support - IH 7.1 updates - DC cursor fixes - VCN/JPEG user fence fixes - DC support for connectors without DDC - Prefer ROM BAR for default VGA device - DC bandwidth fixes - Add PTL support for profiler - Introduce dc_plane_cm and migrate surface update color path - Add FRL registers for HDMI 2.1 - Restructure VM state machine - Auxless ALPM support - GEM_OP locking/warning fixes - switch to system_dfl_wq amdkfd: - GPUVM TLB flush fix - Hotplug fix - Boundary check fixes - SVM fixes - CRIU fixes - add profiler API - MES 12.1 updates msm: - core: - fix shrinker documentation - IFPC enabled for gen8 - PERFCNTR_CONFIG ioctl support - GPU: - reworked UBWC handling - a810 support - MDSS: - add support for Milos platform - reworked UBWC handling - DisplayPort: - reworked HPD handling as prep for MST - DPU: - Milos platform support - reworked UBWC handling - DSI: - Milos platform support nova: - Hopper/Blackwell enablement (GH100/GB100/GB202) - FSP support - 32-bit firmware support - HAL functions - refactor GSP boot/unload - GA100 support - VBIOS hardening/refactoring - Adopt higher order lifetime types tyr: - define register blocks - add shmem backed GEM objects - adopt higher order lifetime types - move clock cleanup into Drop radeon: - Hawaii SMU fixes - CS parser fix - use struct drm_edid instead of edid amdxdna: - export per-client BO memory via fdinfo - AIE4 device support - support medium/lower power modes - expandable device heap support - revert read-only user-pointer BO mappings ivpu: - support frequency limiting panthor: - enable GEM shrinker support - add eviction and reclaim info to fdinfo v3d: - enable runtime PM mgag200: - support XRGB1555 + C8 ast: - support XRGB1555 + C8 - use constants for lots of registers - fix register handling imagination: - fence handling refactoring nouveau: - fix sched double call - expose VBIOS on GSP-RM systems - add GA100 support virtio: - add VIRTIO_GPU_F_BLOB_ALIGNMENT flag - add deferred mapping support gud: - add RCade Display Adapter hibmc: - fix no connectors usage mediatek: - hdmi: convert error handling - simplify mtk_crtc allocation exynos: - move fbdev emulation to drm client buffers - use drm format helpers for geometry/size - adopt core DMA tracking - fix framebuffer offset handling renesas: - add RZ/T2H SOC support versilicon: - add cursor plane support tegra: - use drm client for framebuffer -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEEKbZHaGwW9KfbeusDHTzWXnEhr4FAmoyOXkACgkQDHTzWXnE hr5Pxg//VwqDYgf8CwWtLwXqHYBhGDwj1PDA/zLoosm32fXABKhzPMA5XcaPHBKh Y7Wyo7988cxXFQ0BRltKP1S3d04ck5ZbBA/qpwwX9Pz0u8HhNMicwLd9ASlWqqkP ogFIj3J8PsjlTMVI2cnzQ7s0TMQoQorUaNl13vQnITDPSNncCAunrKixpzVagHeK /ARlIg4kqSbvlKAhkvps7FbJUG3l/g901HdAcspp0bn6d3+4zz8Yg+yg/b4Xngdh Sn6UGDxwrNeBSHP2Spj5/rGSOuo4L8Fr1rS0+KEwRnEqrg+qdq9mo9l0xQsJV9/e 4ql6nssEMC/CIHwHomsgCdxdOsj2DiXLUucJKBwavHHSWNHFgdLhNSdaUcwrkui3 sLmahOEXFwFIR3K1X++547Wux9DhAWDcvq/SnxzN0dQBpN0AmpE0/o/3Vb7Vw4dO /cfvI4Y1WGviJCs58p36tqYGx8dDPuMh9tiUtQvBXBkkS87MqBX8wM49qHSlzEOV EkQfGV1cLMBJpZZkMezrqCNyIS7ghzXJ+K/IruAPrgvN7/kCY7hRclUT+Z/1Mqvc mw3Japbcy7P+BMKnlNfCZsDXg04kYZC5MOaMeiJOLg6qfHBHITD8gP1zct+RikIS d+43kYwt43dPj53jUUXpREoAezSoF2ktncFChB2tdeaMlb6oJIM= =86oS -----END PGP SIGNATURE----- Merge tag 'drm-next-2026-06-17' of https://gitlab.freedesktop.org/drm/kernel Pull drm updates from Dave Airlie: "Highlights: - xe: add initial CRI platform support - amdgpu: initial HDMI 2.1 FRL support - rust: add some new type concepts for device lifetimes - scheduler: moves to a fair algorithm and lots of cleanups But it's mostly the usual mountain of changes across the board. core: - add docbook for DRM_IOCTL_SYNCOBJ_EVENTFD - change signature of drm_connector_attach_hdr_output_metadata_property - dedup counter and timestamp retrieval in vblank code - parse AMD VSDB v3 in CTA extension blocks - add P230, Y7, XYYY2101010, T430, XVUY210101010 formats - don't call drop master on file close if not master - use drm_printf_indent in atomic / bridge - fix 32b format descriptions - docs: fix toctree - hdmi: add common TMDS character rates - fix drm_syncobj_find_fence leak rust: - introduce Higher-Ranked lifetime types - replace drvdata with scoped registration data - add GPUVM immediate mode abstraction for rust GPU drivers - introduce DeviceContext type state for drm::Device bridge: - clarify drm_bridge_get/put - create drm_get_bridge_by_endpoint and use it - analogix_dp: add panel probing - ite-it6211 - use drm audio hdmi helpers buddy: - add lockdep annotations dp: - add PR and VRR updates - mst: fix buffer overflows - add Adaptive Sync SDP decoding support - fix OOB reads in dp-mst ttm: - bump fpfn/lpfn to 64-bit scheduler: - change default to fair scheduler - map runqueue 1:1 with scheduler dma-buf: - port selftests to kunit - convert dma-buf system/heap allocators to module - add separate DMABUF_HEAPS_SYSTEM_CC_SHARED Kconfig udmabuf: - revert hugetlb support - fix error with CONFIG_DMA_API_DEBUG dma-fence: - fix tracepoints lifetime - remove unused signal on any support ras: - add clear error counter netlink command to drm ras gpusvm: - reject VMAs with VM_IO or VM_PFNMAP when creating SVM ranges - use IOVA allocations pagemap: - use IOVA allocations panels: - update to use ref counts - add support for CSW PNB601LS1-2, LGD LP116WHA-SPB1 - add support for waveshare panels - CMN N116BCN-EA1, CMN N140HCA-EEK, IVO M140NWFQ R5, - IVO, R140NWFW R0, BOE NT140*, BOE NV133FHM-N4F, - AUO B140*, AUO B133HAN06.6 and AUO B116XTN02.3 eDP panels - Surface Pro 12 Panel xe: - add CRI PCI-IDs - debugfs add multi-lrc info - engine init cleanup - PF fair scheduling auto provisioning - system controller support for CRI/Xe3p - PXP state machine fixes - Reset/wedge/unload corner case fixes - Wedge path memory allocation fixes - PAT type cleanups - Reject unsafe PAT for CPU cached memory - OA improvements for CRI device memory - kernel doc syntax in xe headers - xe_drm.h documentation fixes - include guard cleanups - VF CCS memory pool - i915/xe step unification - Xe3p GT tuning fixes - forcewake cleanup in GT and GuC - admin-only PF mode - enable hwmon energy attributes for CRI - enable GT_MI_USER_INTERRUPT - refactor emit functions - oa workarounds - multi_queue: allow QUEUE_TIMESTAMP register - convert stolen memory to ttm range manager - use xe2 style blitter as a feature flag - make drm_driver const - add/use IRQ page to HW engine definition - fix oops when display disabled i915: - enable PIPEDMC_ERROR interrupt - more common display code refactoring - restructure DP/HDMI sink format handling - eliminate FB usage from lowlevel pinning code - panel replay bw optimization - integrate sharpness filter into the scaler - new fb_pin abstraction for xe/i915 fb transparent handling - skip inactive MST connectors on HDCP - start switching to display specific registers - use polling when irq unavailable - Adaptive-sync SDP prep amdgpu: - use drm_display_info for AMD VSDB data - Initial HDMI 2.1 FRL support - Initial DCN 4.2.1 support - GART fixes for non-4k pages - GC 11.5.6/SDMA 6.4.0/and other new IPs - GFX9/DCE6/Hawaii/SDMA4/GART/Userq fixes - Finish support for using multiple SDMA queues for TTM operations - SWSMU updates - GC 12.1 updates - SMU 15.0.8 updates - DCN 4.2 updates - DC type conversion fixes - Enable DC power module - Replay/PSR updates - SMU 13.x updates - Compute queue quantum MQD updates - ASPM fix - Align VKMS with common implementation - DC analog support fixes - UVD 3 fixes - TCC harvesting fixes for SI - GC 11 APU module reload fix - NBIO 6.3.2 support - IH 7.1 updates - DC cursor fixes - VCN/JPEG user fence fixes - DC support for connectors without DDC - Prefer ROM BAR for default VGA device - DC bandwidth fixes - Add PTL support for profiler - Introduce dc_plane_cm and migrate surface update color path - Add FRL registers for HDMI 2.1 - Restructure VM state machine - Auxless ALPM support - GEM_OP locking/warning fixes - switch to system_dfl_wq amdkfd: - GPUVM TLB flush fix - Hotplug fix - Boundary check fixes - SVM fixes - CRIU fixes - add profiler API - MES 12.1 updates msm: - core: - fix shrinker documentation - IFPC enabled for gen8 - PERFCNTR_CONFIG ioctl support - GPU: - reworked UBWC handling - a810 support - MDSS: - add support for Milos platform - reworked UBWC handling - DisplayPort: - reworked HPD handling as prep for MST - DPU: - Milos platform support - reworked UBWC handling - DSI: - Milos platform support nova: - Hopper/Blackwell enablement (GH100/GB100/GB202) - FSP support - 32-bit firmware support - HAL functions - refactor GSP boot/unload - GA100 support - VBIOS hardening/refactoring - Adopt higher order lifetime types tyr: - define register blocks - add shmem backed GEM objects - adopt higher order lifetime types - move clock cleanup into Drop radeon: - Hawaii SMU fixes - CS parser fix - use struct drm_edid instead of edid amdxdna: - export per-client BO memory via fdinfo - AIE4 device support - support medium/lower power modes - expandable device heap support - revert read-only user-pointer BO mappings ivpu: - support frequency limiting panthor: - enable GEM shrinker support - add eviction and reclaim info to fdinfo v3d: - enable runtime PM mgag200: - support XRGB1555 + C8 ast: - support XRGB1555 + C8 - use constants for lots of registers - fix register handling imagination: - fence handling refactoring nouveau: - fix sched double call - expose VBIOS on GSP-RM systems - add GA100 support virtio: - add VIRTIO_GPU_F_BLOB_ALIGNMENT flag - add deferred mapping support gud: - add RCade Display Adapter hibmc: - fix no connectors usage mediatek: - hdmi: convert error handling - simplify mtk_crtc allocation exynos: - move fbdev emulation to drm client buffers - use drm format helpers for geometry/size - adopt core DMA tracking - fix framebuffer offset handling renesas: - add RZ/T2H SOC support versilicon: - add cursor plane support tegra: - use drm client for framebuffer" * tag 'drm-next-2026-06-17' of https://gitlab.freedesktop.org/drm/kernel: (1731 commits) dma-buf: move system_cc_shared heap under separate Kconfig accel/amdxdna: Clear sva pointer after unbind agp/amd64: Fix broken error propagation in agp_amd64_probe() accel/amdxdna: Require carveout when PASID and force_iova are disabled drm/amdkfd: always resume_all after suspend_all drm/amdgpu/gfx: move fault and EOP IRQ get/put to hw_init/hw_fini drm/amd/display: Consult MCCS FreeSync cap only if requested & supported drm/amd/pm: Use strscpy in profile mode parsing drm/amdkfd: Fix infinite loop parsing CRAT with zero subtype length drm/amdkfd: fix sysfs topology prop length on buffer truncation drm/amdgpu: drop retry loop in amdgpu_hmm_range_get_pages drm/amd/pm: bound OD parameter parsing to stack array size drm/amd/pm: Stop pp_od_clk_voltage emit at PAGE_SIZE drm/amdkfd: Unwind debug trap enable on copy_to_user failure drm/amdgpu: validate the mes firmware version for gfx12.1 drm/amdgpu: validate the mes firmware version for gfx12 drm/amdgpu: compare MES firmware version ucode for gfx11 drm/amdkfd: Add bounds check for AMDKFD_IOC_WAIT_EVENTS drm/amdgpu: restart the CS if some parts of the VM are still invalidated drm/amd/display: use unsigned types for local pipe and REG_GET counters ... |
||
|
Linus Torvalds
|
9c87e61e3c |
bpf-next-7.2
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Merge tag 'bpf-next-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Pull bpf updates from Alexei Starovoitov:
"Major changes:
- Recover from BPF arena page faults using a scratch page and add
ptep_try_set() for lockless empty-slot installs on x86 and arm64.
This allows BPF kfuncs to access arena pointers directly.
The 'arena_direct_access' stable branch was created for this work
and was pulled into sched-ext and bpf-next trees (Tejun Heo, Kumar
Kartikeya Dwivedi)
- Lift old restriction and support 6+ arguments in BPF programs and
kfuncs on x86 and arm64 (Yonghong Song, Puranjay Mohan)
Other features and fixes:
- Add 24-bit BTF vlen and reclaim unused bits in the BTF UAPI to ease
addition of new BTF kinds (Alan Maguire)
- Raise the maximum BPF call chain depth from 8 to 16 frames (Alexei
Starovoitov)
- Refactor object relationship tracking in the verifier and fix a
dynptr use-after-free bug (Amery Hung)
- Harden the signed program loader and reject exclusive maps as inner
maps (Daniel Borkmann)
- Replace the verifier min/max bounds fields with a circular number
(cnum) representation and improve 32->64 bit range refinements
(Eduard Zingerman)
- Introduce the arena library and runtime (libarena) with a buddy
allocator, rbtree and SPMC queue data structures, ASAN support and
a parallel test harness. Allow subprograms to return arena pointers
and switch to a BTF type-tag based __arena annotation (Emil
Tsalapatis)
- Cache build IDs in the sleepable stackmap path and avoid faultable
build ID reads under mm locks (Ihor Solodrai)
- Introduce the tracing_multi link to attach a single BPF program to
many kernel functions at once. Allow specifying the uprobe_multi
target via FD (Jiri Olsa)
- Extend the bpf_list family of kfuncs with bpf_list_add/del(), and
bpf_list_is_first/is_last/empty() (Kaitao Cheng)
- Extend the BPF syscall with common attributes support for
prog_load, btf_load and map_create (Leon Hwang)
- Wrap rhashtable as BPF map (Mykyta Yatsenko, Herbert Xu)
- Add sleepable support for tracepoint programs and fix deadlocks in
LRU map due to NMI reentry (Mykyta Yatsenko)
- Fix OOB access in bpf_flow_keys, fix nullness analysis of inner
arrays, enforce write checks for global subprograms (Nuoqi Gui)
- Report the maximum combined stack depth and print a breakdown of
instructions processed per subprogram (Paul Chaignon)
- Add an XDP load-balancer benchmark and arm64 JIT support for stack
arguments (Puranjay Mohan)
- Add kfuncs to traverse over wakeup_sources (Samuel Wu)
- Allow sleepable BPF programs to use LPM trie maps directly (Vlad
Poenaru)
- Many more fixes and cleanups across the verifier, BTF, sockmap,
devmap, bpffs, security hooks, s390/riscv/loongarch JITs,
rqspinlock, libbpf, bpftool, selftests"
* tag 'bpf-next-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (336 commits)
selftests/bpf: Work around llvm stack overflow in crypto progs
selftests/bpf: add test for bpf_msg_pop_data() overflow
bpf, sockmap: fix integer overflow in bpf_msg_pop_data() bounds check
sockmap: Fix use-after-free in udp_bpf_recvmsg()
bpf, sockmap: keep sk_msg copy state in sync
bpf, sockmap: Fix wrong rsge offset in bpf_msg_push_data()
bpf, sockmap: reject overflowing copy + len in bpf_msg_push_data()
selftsets/bpf: Retry map update on helper_fill_hashmap()
selftests/bpf: Add test for sleepable lsm_cgroup rejection
selftests/bpf: Add test to verify the fix for bpf_setsockopt() helper
bpf: Fix bpf_get/setsockopt to tos for ipv4-mapped ipv6 socket
selftests/bpf: Avoid static LLVM linking for cross builds
selftests/bpf: Use common CFLAGS for urandom_read
selftests/bpf: Initialize operation name before use
tools/bpf: build: Append extra cflags
libbpf: Initialize CFLAGS before including Makefile.include
bpftool: Append extra host flags
bpftool: Avoid adding EXTRA_CFLAGS to HOST_CFLAGS
bpftool: Pass host flags to bootstrap libbpf
selftests/bpf: correct CONFIG_PPC64 macro name in comment
...
|
||
|
Linus Torvalds
|
b85966adbf |
Networking changes for 7.2.
Core & protocols
----------------
- Work on removing rtnl_lock protection throughout the stack continues.
In this chapter:
- don't use rtnl_lock for IPv6 multicast routing configuration
- don't take rtnl_lock in ethtool for modern drivers
- prepare Qdisc dump callbacks for rtnl_lock removal
- Support dumping just ifindex + name of all interfaces, under RCU.
It's a common operation for Netlink CLI tools (when translating
names to ifindexes) and previously required full rtnl_lock.
- Support dumping qdiscs and page pools for a specific netdev. Even tho
user space wants a dump of all netdevs, most of the time, the OOO
programming model results in repeating the dump for each netdev.
Which, in absence of a cache, leads to a O(n^2) behavior.
- Flush nexthops once on multi-nexthop removal (e.g. when device goes
down), another O(n^2) -> O(n) improvement.
- Rehash locally generated traffic to a different nexthop on retransmit
timeout.
- Honor oif when choosing nexthop for locally generated IPv6 traffic.
- Convert TCP Auth Option to crypto library, and drop non-RFC algos.
- Increase subflow limits in MPTCP to 64 and endpoint limit to 256.
- Support MPTCP signaling of IPv6 address + port (ADD_ADDR). We need
to selectively skip reporting of the standard TCP Timestamp option,
because they won't fit into the header space together (12 + 30 > 40).
- Support using bridge neighbor suppression, Duplicate Address
Detection, Gratuitous ARP and unsolicited NA forwarding - in EVPN
deployments, e.g. VXLAN fabrics (IPv4 and IPv6).
- Improve link state reporting for upper netdevs (e.g. macvlan) over
tunnel devices (again, mostly for EVPN deployments).
- Support binding GENEVE tunnels to a local address.
- Speed up UDP tunnel destruction (remove one synchronize_rcu()).
- Support exponential field encoding in multicast (IGMPv3 and MLDv2).
- Support attaching PSP crypto offload to containers (veth, netkit).
- Add a new IPSec Netlink message XFRM_MSG_MIGRATE_STATE that allows
migrating individual IPsec SAs independently of their policies.
The existing XFRM_MSG_MIGRATE is tightly coupled to policy+SA
migration, lacks SPI for unique SA identification, and cannot express
reqid changes or migrate Transport mode selectors. The new interface
identifies the SA via SPI and mark, supports reqid changes, address
family changes, encap removal, and uses an atomic create+install
flow under x->lock to prevent SN/IV reuse during AEAD SA migration.
- Implement GRO/GSO support for PPPoE.
- Convert sockopt callbacks in a number of protocols to iov_iter.
Cross-tree stuff
----------------
- Remove support for Crypto TFM cloning (unblocked after the TCP Auth
Option rework). This feature regressed performance for all crypto API
users, since it changed crypto transformation objects into reference-
-counted objects.
- Add FCrypt-PCBC implementation to rxrpc and remove it from the global
crypto API as obsolete and insecure.
Wireless
--------
- Major rework of station bandwidth handling, fixing issues with lower
capability than AP.
- Cleanups for EMLSR spec issues (drafts differed).
- More Neighbor Awareness Networking (Wi-Fi Aware) work (multicast,
schedule improvements, multi-station etc.)
- Some Ultra High Reliability (UHR) / IEEE 802.11bn (D1.4) work
(e.g. non-primary channel access, UHR DBE support).
- Fine Timing Measurement ranging (i.e. distance measurement) APIs.
Netfilter
---------
- Use per-rule hash initval in nf_conncount. This avoids unnecessary
lock contention with short keys (e.g. conntrack zones) in different
namespaces.
- Various safety improvements, both in packet parsing and object
lifetimes. Notably add refcounts to conntrack timeout policy.
Deletions
---------
- Remove TLS + sockmap integration. TLS wants to pin user pages
to avoid a copy, and sockmap wants to write to the input stream.
More work on this integration is clearly needed, and we can't find
any users (original author admitted that they never deployed it).
- Remove support for TLS offload with TCP Offload Engine (the far
more common opportunistic offload is retained). The locking looks
unfixable (driver sleeps under TCP spin locks) and people from
the vendor that added this are AWOL.
- Remove more ATM code, trying to leave behind only what PPPoATM needs,
AAL5 and br2684 with permanent circuits.
- Remove AppleTalk. Let it join hamradio in our out of tree protocol
graveyard, I mean, repository.
- Disable 32-bit x_tables compatibility (32bit binaries on 64bit kernel)
interface in user namespaces. To be deleted completely, soon.
- Remove 5/10 MHz support from cfg80211/mac80211.
Drivers
-------
- Software:
- Support DEVMEM/DMABUF Tx over NETMEM_TX_NO_DMA devices (netkit).
- bonding: add knob to strictly follow 802.3ad for link state.
- New drivers:
- Alibaba Elastic Ethernet Adaptor (cloud vNIC).
- NXP NETC switch within i.MX94.
- DPLL:
- Add operational state to pins (implement in zl3073x).
- Add generic DPLL type, for daisy-chaining DPLLs (implement in ice).
- Ethernet high-speed NICs:
- Huawei (hinic3):
- enhance tc flow offload support with queue selection, tunnels
- nVidia/Mellanox:
- avoid over-copying payload to the skb's linear part (up to 60%
win for LRO on slow CPUs like ARM64 V2)
- expose more per-queue stats over the standard API
- support additional, unprivileged PFs in the DPU configuration
- support Socket Direct (multi-PF) with switchdev offloads
- add a pool / frag allocator for DMA mapped buffers for control
objects, save memory on systems with 64kB page size
- take advantage of the ability to dynamically change RSS table
size, even when table is configured by the user
- increase the max RSS table size for even traffic distribution
- Ethernet NICs:
- Marvell/Aquantia:
- AQC113 PTP support
- Realtek USB (r8152):
- support 10Gbit Link Speeds and Energy-Efficient Ethernet (EEE)
- support firmware loaded (for RTL8157/RTL8159)
- support for the RTL8159
- Intel (ixgbe):
- support Energy-Efficient Ethernet (EEE) on E610 devices
- Ethernet switches:
- Airoha:
- support multiple netdevs on a single GDM block / port
- Marvell (mv88e6xxx):
- support SERDES of mv88e6321
- Microchip (ksz8/9):
- rework the driver callbacks to remove one indirection layer
- Motorcomm (yt921x):
- support port rate policing
- support TBF qdisc offload
- support ACL/flower offload
- nVidia/Mellanox:
- expose per-PG rx_discards
- Realtek:
- rtl8365mb: bridge offloading and VLAN support
- Ethernet PHYs:
- Airoha:
- support Airoha AN8801R Gigabit PHYs.
- Micrel:
- implement 3 low-loss cable tunables
- Realtek:
- support MDI swapping for RTL8226-CG
- support MDIO for RTL931x
- Qualcomm:
- at803x: Rx and Tx clock management for IPQ5018 PHY
- Motorcomm:
- support YT8522 100M RMII PHY
- set drive strength in YT8531s RGMII
- TI:
- dp83822: add optional external PHY clock
- Bluetooth:
- hci_sync: add support for HCI_LE_Set_Host_Feature [v2]
- SMP: use AES-CMAC library API
- Intel:
- support Product level reset
- support smart trigger dump
- Mediatek:
- add event filter to filter specific event
- Realtek:
- fix RTL8761B/BU broken LE extended scan
- WiFi:
- Broadcom (b43):
- new support for a 11n device
- MediaTek (mt76):
- support mt7927
- mt792x: broken usb transport detection
- mt7921: regulatory improvements
- Qualcomm (ath9k):
- GPIO interface improvements
- Qualcomm (ath12k):
- WDS support
- replace dynamic memory allocation in WMI Rx path
- thermal throttling/cooling device support
- 6 GHz incumbent interference detection
- channel 177 in 5 GHz
- Realtek (rt89):
- RTL8922AU support
- USB 3 mode switch for performance
- better monitor radiotap support
- RTL8922DE preparations
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"Core & protocols:
- Work on removing rtnl_lock protection throughout the stack
continues. In this chapter:
- don't use rtnl_lock for IPv6 multicast routing configuration
- don't take rtnl_lock in ethtool for modern drivers
- prepare Qdisc dump callbacks for rtnl_lock removal
- Support dumping just ifindex + name of all interfaces, under RCU.
It's a common operation for Netlink CLI tools (when translating
names to ifindexes) and previously required full rtnl_lock.
- Support dumping qdiscs and page pools for a specific netdev. Even
tho user space wants a dump of all netdevs, most of the time, the
OOO programming model results in repeating the dump for each
netdev. Which, in absence of a cache, leads to a O(n^2) behavior.
- Flush nexthops once on multi-nexthop removal (e.g. when device goes
down), another O(n^2) -> O(n) improvement.
- Rehash locally generated traffic to a different nexthop on
retransmit timeout.
- Honor oif when choosing nexthop for locally generated IPv6 traffic.
- Convert TCP Auth Option to crypto library, and drop non-RFC algos.
- Increase subflow limits in MPTCP to 64 and endpoint limit to 256.
- Support MPTCP signaling of IPv6 address + port (ADD_ADDR). We need
to selectively skip reporting of the standard TCP Timestamp option,
because they won't fit into the header space together (12 + 30 >
40).
- Support using bridge neighbor suppression, Duplicate Address
Detection, Gratuitous ARP and unsolicited NA forwarding - in EVPN
deployments, e.g. VXLAN fabrics (IPv4 and IPv6).
- Improve link state reporting for upper netdevs (e.g. macvlan) over
tunnel devices (again, mostly for EVPN deployments).
- Support binding GENEVE tunnels to a local address.
- Speed up UDP tunnel destruction (remove one synchronize_rcu()).
- Support exponential field encoding in multicast (IGMPv3 and MLDv2).
- Support attaching PSP crypto offload to containers (veth, netkit).
- Add a new IPSec Netlink message XFRM_MSG_MIGRATE_STATE that allows
migrating individual IPsec SAs independently of their policies.
The existing XFRM_MSG_MIGRATE is tightly coupled to policy+SA
migration, lacks SPI for unique SA identification, and cannot
express reqid changes or migrate Transport mode selectors.
The new interface identifies the SA via SPI and mark, supports
reqid changes, address family changes, encap removal, and uses an
atomic create+install flow under x->lock to prevent SN/IV reuse
during AEAD SA migration.
- Implement GRO/GSO support for PPPoE.
- Convert sockopt callbacks in a number of protocols to iov_iter.
Cross-tree stuff:
- Remove support for Crypto TFM cloning (unblocked after the TCP Auth
Option rework). This feature regressed performance for all crypto
API users, since it changed crypto transformation objects into
reference-counted objects.
- Add FCrypt-PCBC implementation to rxrpc and remove it from the
global crypto API as obsolete and insecure.
Wireless:
- Major rework of station bandwidth handling, fixing issues with
lower capability than AP.
- Cleanups for EMLSR spec issues (drafts differed).
- More Neighbor Awareness Networking (Wi-Fi Aware) work (multicast,
schedule improvements, multi-station etc.)
- Some Ultra High Reliability (UHR) / IEEE 802.11bn (D1.4) work
(e.g. non-primary channel access, UHR DBE support).
- Fine Timing Measurement ranging (i.e. distance measurement) APIs.
Netfilter:
- Use per-rule hash initval in nf_conncount. This avoids unnecessary
lock contention with short keys (e.g. conntrack zones) in different
namespaces.
- Various safety improvements, both in packet parsing and object
lifetimes. Notably add refcounts to conntrack timeout policy.
Deletions:
- Remove TLS + sockmap integration. TLS wants to pin user pages to
avoid a copy, and sockmap wants to write to the input stream. More
work on this integration is clearly needed, and we can't find any
users (original author admitted that they never deployed it).
- Remove support for TLS offload with TCP Offload Engine (the far
more common opportunistic offload is retained). The locking looks
unfixable (driver sleeps under TCP spin locks) and people from the
vendor that added this are AWOL.
- Remove more ATM code, trying to leave behind only what PPPoATM
needs, AAL5 and br2684 with permanent circuits.
- Remove AppleTalk. Let it join hamradio in our out of tree protocol
graveyard, I mean, repository.
- Disable 32-bit x_tables compatibility (32bit binaries on 64bit
kernel) interface in user namespaces. To be deleted completely,
soon.
- Remove 5/10 MHz support from cfg80211/mac80211.
Drivers:
- Software:
- Support DEVMEM/DMABUF Tx over NETMEM_TX_NO_DMA devices (netkit)
- bonding: add knob to strictly follow 802.3ad for link state
- New drivers:
- Alibaba Elastic Ethernet Adaptor (cloud vNIC).
- NXP NETC switch within i.MX94.
- DPLL:
- Add operational state to pins (implement in zl3073x).
- Add generic DPLL type, for daisy-chaining DPLLs (implement in ice).
- Ethernet high-speed NICs:
- Huawei (hinic3):
- enhance tc flow offload support with queue selection,
tunnels
- nVidia/Mellanox:
- avoid over-copying payload to the skb's linear part (up to
60% win for LRO on slow CPUs like ARM64 V2)
- expose more per-queue stats over the standard API
- support additional, unprivileged PFs in the DPU
configuration
- support Socket Direct (multi-PF) with switchdev offloads
- add a pool / frag allocator for DMA mapped buffers for
control objects, save memory on systems with 64kB page size
- take advantage of the ability to dynamically change RSS
table size, even when table is configured by the user
- increase the max RSS table size for even traffic
distribution
- Ethernet NICs:
- Marvell/Aquantia:
- AQC113 PTP support
- Realtek USB (r8152):
- support 10Gbit Link Speeds and Energy-Efficient Ethernet
(EEE)
- support firmware loaded (for RTL8157/RTL8159)
- support for the RTL8159
- Intel (ixgbe):
- support Energy-Efficient Ethernet (EEE) on E610 devices
- Ethernet switches:
- Airoha:
- support multiple netdevs on a single GDM block / port
- Marvell (mv88e6xxx):
- support SERDES of mv88e6321
- Microchip (ksz8/9):
- rework the driver callbacks to remove one indirection layer
- Motorcomm (yt921x):
- support port rate policing
- support TBF qdisc offload
- support ACL/flower offload
- nVidia/Mellanox:
- expose per-PG rx_discards
- Realtek:
- rtl8365mb: bridge offloading and VLAN support
- Ethernet PHYs:
- Airoha:
- support Airoha AN8801R Gigabit PHYs.
- Micrel:
- implement 3 low-loss cable tunables
- Realtek:
- support MDI swapping for RTL8226-CG
- support MDIO for RTL931x
- Qualcomm:
- at803x: Rx and Tx clock management for IPQ5018 PHY
- Motorcomm:
- support YT8522 100M RMII PHY
- set drive strength in YT8531s RGMII
- TI:
- dp83822: add optional external PHY clock
- Bluetooth:
- hci_sync: add support for HCI_LE_Set_Host_Feature [v2]
- SMP: use AES-CMAC library API
- Intel:
- support Product level reset
- support smart trigger dump
- Mediatek:
- add event filter to filter specific event
- Realtek:
- fix RTL8761B/BU broken LE extended scan
- WiFi:
- Broadcom (b43):
- new support for a 11n device
- MediaTek (mt76):
- support mt7927
- mt792x: broken usb transport detection
- mt7921: regulatory improvements
- Qualcomm (ath9k):
- GPIO interface improvements
- Qualcomm (ath12k):
- WDS support
- replace dynamic memory allocation in WMI Rx path
- thermal throttling/cooling device support
- 6 GHz incumbent interference detection
- channel 177 in 5 GHz
- Realtek (rt89):
- RTL8922AU support
- USB 3 mode switch for performance
- better monitor radiotap support
- RTL8922DE preparations"
* tag 'net-next-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1778 commits)
ipv4: fib_rule: Move fib4_rules_exit() to ->exit().
net: serialize netif_running() check in enqueue_to_backlog()
net: skmsg: preserve sg.copy across SG transforms
appletalk: move the protocol out of tree
appletalk: stop storing per-interface state in struct net_device
selftests/bpf: test that TLS crypto is rejected on a sockmap socket
selftests/bpf: drop the unused kTLS program from test_sockmap
selftests/bpf: remove sockmap + ktls tests
tls: remove dead sockmap (psock) handling from the SW path
tls: reject the combination of TLS and sockmap
atm: remove orphaned uAPI for deleted drivers, protocols and SVCs
atm: remove unused ATM PHY operations
atm: remove the unused pre_send and send_bh device operations
atm: remove the unused change_qos device operation
atm: remove SVC socket support and the signaling daemon interface
atm: remove the local ATM (NSAP) address registry
atm: remove dead SONET PHY ioctls
atm: remove the unused send_oam / push_oam callbacks
atm: remove AAL3/4 transport support
net: dsa: sja1105: fix lastused timestamp in flower stats
...
|
||
|
Jakub Kicinski
|
8f9616500c |
atm: remove orphaned uAPI for deleted drivers, protocols and SVCs
ATM removals have left a number of uAPI headers and ioctl
definitions with no in-kernel implementation behind them:
- device headers for adapters deleted with the legacy PCI/SBUS drivers:
atm_eni.h, atm_he.h, atm_idt77105.h, atm_nicstar.h, atm_zatm.h and
the atmtcp pair atm_tcp.h / <linux/atm_tcp.h>
- protocol headers for the removed CLIP, LANE and MPOA stacks:
atmarp.h, atmclip.h, atmlec.h, atmmpc.h
- atmsvc.h and the SVC / p2mp / local-address ioctls in atmdev.h
(ATM_{GET,RST,ADD,DEL}ADDR, ATM_{ADD,DEL,GET}LECSADDR,
ATM_{ADD,DROP}PARTY) left behind by the SVC and address-registry
removals
None of these are referenced by any remaining in-tree code.
Let's try to delete all this. Chances are nobody cares about
these headers any more. I'm keeping this separate from the
kernel side code changes for ease of revert, in case I am
proven wrong...
Link: https://patch.msgid.link/20260615194416.752559-10-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
||
|
Linus Torvalds
|
ba9c792c82 |
for-7.2/block-20260615
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Merge tag 'for-7.2/block-20260615' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull block updates from Jens Axboe:
- NVMe pull request via Keith:
- Per-controller admin and IO timeout sysfs attributes, and
letting the block layer set request timeouts (Maurizio,
Maximilian)
- Multipath passthrough iostats, and PCI P2PDMA enablement for
multipath devices (Keith, Kiran)
- A new diag sysfs attribute group exporting per-controller
counters (retries, multipath failover, error counters, requeue
and failure counts, reset and reconnect events) (Nilay)
- FDP configuration validation and bounds check fixes (liuxixin)
- Various nvmet fixes, including a pre-auth out-of-bounds read in
the Discovery Get Log Page handler, auth payload bounds
validation, and tcp error-path leak fixes (Bryam, Tianchu,
Geliang)
- nvme-tcp lockdep and workqueue fixes (Shin'ichiro, Kuniyuki,
Eric)
- Assorted other fixes and cleanups (John, Yao, Chao, Mateusz,
Achkinazi, Wentao)
- MD pull request via Yu Kuai:
- raid1/raid10 fixes for a deadlock in the read error recovery
path, error-path detection and bio accounting with cloned bios,
and an nr_pending leak in the REQ_ATOMIC bad-block error path
(Abd-Alrhman)
- PCI P2PDMA propagation from member devices to the RAID device
(Kiran)
- dm-raid bio requeue fix, and various smaller fixes and cleanups
(Benjamin, Chen, Li, Thorsten)
- Enable Clang lock context analysis for the block layer, with the
accompanying annotations across queue limits, the blk_holder_ops
callbacks, crypto, cgroup, iocost, kyber and mq-deadline (Bart)
- Block status code infrastructure work: a tagged status table, a
str_to_blk_op() helper, a bio_endio_status() helper, and on top of
that a new configurable block-layer error injection facility
(Christoph)
- DRBD netlink rework, replacing the genl_magic machinery with explicit
netlink serialization and moving the DRBD UAPI headers to
include/uapi/linux/ (Christoph Böhmwalder)
- bvec improvements: a bvec_folio() helper and making the bvec_iter
helpers proper inline functions (Willy, Christoph)
- ublk cleanups and a canceling-flag fix for the disk-not-allocated
case (Caleb, Ming)
- Partition handling fixes: bound the AIX pp_count scan, fix an of_node
refcount leak, and replace __get_free_page() with kmalloc() (Bryam,
Wentao, Mike)
- Convert numa_node to int in blk_mq_hw_ctx and ->init_request, and add
WQ_PERCPU to the block workqueue users (Mateusz, Marco)
- Block statistics and tracing: propagate in-flight to the whole disk
on partition IO, export passthrough stats, and a new
block_rq_tag_wait tracepoint (Tang, Keith, Aaron)
- A round of removals, unexports and cleanups across bio, direct-io and
the bvec helpers (Christoph)
- Various driver fixes (mtip32xx use-after-free, rbd snap_count
validation and strscpy conversion, nbd socket lockdep reclassify,
virtio-blk zone report clamp, floppy) and a batch of MAINTAINERS
email/list updates (Coly, Li, Yu, Christoph Böhmwalder)
- Other little fixes and cleanups all over
* tag 'for-7.2/block-20260615' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux: (117 commits)
MAINTAINERS: Update Coly Li's email address
block: check bio split for unaligned bvec
nbd: Reclassify sockets to avoid lockdep circular dependency
block: add configurable error injection
block: add a str_to_blk_op helper
block: add a "tag" for block status codes
block: add a macro to initialize the status table
floppy: Drop unused pnp driver data
block: propagate in_flight to whole disk on partition I/O
virtio-blk: clamp zone report to the report buffer capacity
block: optimize I/O merge hot path with unlikely() hints
drivers/block/rbd: Use strscpy() to copy strings into arrays
partitions: aix: bound the pp_count scan to the ppe array
block: Enable lock context analysis
block/mq-deadline: Make the lock context annotations compatible with Clang
block/Kyber: Make the lock context annotations compatible with Clang
block/blk-mq-debugfs: Improve lock context annotations
block/blk-iocost: Inline iocg_lock() and iocg_unlock()
block/blk-iocost: Split ioc_rqos_throttle()
block/crypto: Annotate the crypto functions
...
|
||
|
Linus Torvalds
|
9b40ba14ed |
for-7.2/io_uring-20260615
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||
|
Linus Torvalds
|
31b706da2c |
for-7.2-tag
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Merge tag 'for-7.2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba:
"The most noticeable change is to enable large folios by default, it's
been in testing for a few releases. Related to that is huge folio
support (still under experimental config). Otherwise a few ioctl
updates, performance improvements and usual fixes and core changes.
User visible changes:
- enable large folios by default, added in 6.17 (under experimental
build), no feature limitations, a big change internally
- new ioctl to return raw checksums to userspace (a bit tricky given
compression and tail extents), can be used for mkfs and
deduplication optimizations
- provide stable UUID for e.g. overlayfs and temp_fsid, also
reflected in statvfs() field f_fsid, internal dev_t is hashed in to
allow cloning
- add 32bit compat version of GET_SUBVOL_INFO ioctl
- in experimental build, support huge folios (up to 2M)
Performance related improvements/changes:
- limit bio size to the estimated optimum derived from the queue,
this prevents build up of too much data for writeback, which could
cause latency spikes (reported improvement 15% on sequential
writes)
- don't force direct IO to be serialized, forgotten change during
mount API port, brings back +60% of throughput
- lockless calculation of number of shrinkable extent maps, improve
performance with many memcg allocated objects
Notable fixes:
- in zoned mode, fix a deadlock due to zone reclaim and relocation
when space needs to be flushed
- don't trim device which is internally not tracked as writeable
(e.g. when missing device is being rescanned)
- fix deadlock when cloning inline extent and mounted with
flushoncommit
- fix false IO failures after direct IO falls back to buffered write
in some cases
Core:
- remove COW fixup mechanism completely; detect and fix changes to
pages outside of filesystem tracking, guaranteed since 5.8, grace
period is over
- remove 2K block size support, experimental to test subpage code on
x86_64 but now it would block folio changes
- tree-checker improvements of:
- free-space cache and tree items
- root reference and backref items
- extent state exceptions in reloc tree
- subpage mode updates:
- code optimizations, simplify tracking bitmaps
- re-enable readahead of compressed extent
- extend bitmap size to cover huge folios
- add tracepoints related to sync, tree-log and transactions
- device stats item tracking unification, remove item if there are no
stats recorded, also don't leave stale stats on replaced device
- allow extent buffer pages to be allocated as movable, to help page
migration
- added checks for proper extent buffer release
- btrfs.ko code size reduction due to transaction abort call
simplifications
- several struct size reductions
- more auto free conversions
- more verbose assertions"
* tag 'for-7.2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (130 commits)
btrfs: fix use-after-free after relocation failure with concurrent COW
btrfs: move WARN_ON on unexpected error in __add_tree_block()
btrfs: move locking into btrfs_get_reloc_bg_bytenr()
btrfs: lzo: reject compressed segment that overflows the compressed input
btrfs: retry faulting in the pages after a zero sized short direct write
btrfs: fix incorrect buffered IO fallback for append direct writes
btrfs: fix false IO failure after falling back to buffered write
btrfs: use verbose assertions in backref.c
btrfs: print a message when a missing device re-appears
btrfs: do not trim a device which is not writeable
btrfs: return real error after lookup failure in btrfs_ioctl_default_subvol()
btrfs: use mapping shared locking for reading super block
btrfs: use lockless read in nr_cached_objects shrinker callback
btrfs: switch local indicator variables to bools
btrfs: send: pass bool for pending_move and refs_processed parameters
btrfs: use shifts for sectorsize and nodesize
btrfs: fix deadlock cloning inline extent when using flushoncommit
btrfs: allocate eb-attached btree pages as movable
btrfs: add 32-bit compat ioctl for BTRFS_IOC_GET_SUBVOL_INFO
btrfs: derive f_fsid from on-disk fsid and dev_t
...
|
||
|
Linus Torvalds
|
7e54cdd056 |
watchdog updates and fixes for v7.2
* subsystem
- Unregister PM notifier on watchdog unregister
- Various documentation fixes and improvements
* Removed drivers
- Remove AMD Elan SC520 processor watchdog driver
- Drop SMARC-sAM67 support
- Remove driver for integrated WDT of ZFx86 486-based SoC
* New drivers
- Driver for Andes ATCWDT200
- Driver for Gunyah Watchdog
* Added support to existing drivers
- Add "apple,t8103-wdt" and "apple,t8122-wdt" compatibles to Apple
watchdog driver
- Add rockchip,rk3528-wdt and rockchip,rv1103b-wdt to snps,dw-wdt.yaml
- Document IPQ9650, IPQ5210, Shikra, Nord, and Hawi in qcom-wdt.yaml
Also document sram property and add support to get the bootstatus
to qcom wdt driver
- lenovo_se10_wdt: Fix use-after-rfree and add support for SE10 Gen 2
platform
- ti,rti-wdt: Add ti,am62l-rti-wdt compatible
- renesas: Document RZ/G3L support and rework example for
renesas,r9a09g057-wdt
* Other bug fixes and improvements
- Use named initializers (sc1200, ziirave_wdt)
- Allow pic32-dmt and pic32-wdt to be built with COMPILE_TEST
- realtek-otto: enable clock before using I/O, and prevent PHASE2 underflows
- rti_wdt: Add reaction control
- renesas,rzn1-wdt: Drop interrupt support and other cleanup
- gpio_wdt: Add ACPI support
- imx7ulp_wdt: Keep WDOG running until A55 enters WFI on i.MX94
- sprd_wdt: Remove redundant sprd_wdt_disable() on register failure
- bcm2835_wdt: Switch to new sys-off handler API
- sama5d4_wdt: Fix WDDIS detection on SAM9X60 and SAMA7G5
- hpwdt: Refine hpwdt message for UV platform
- Convert TS-4800 bindings to DT schema
- menz069_wdt: drop unneeded MODULE_ALIAS
- sp5100_tco: Use EFCH MMIO for newer Hygon FCH
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Merge tag 'watchdog-for-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull watchdog updates and fixes from Guenter Roeck:
"Subsystem:
- Unregister PM notifier on watchdog unregister
- Various documentation fixes and improvements
Removed drivers:
- Remove AMD Elan SC520 processor watchdog driver
- Drop SMARC-sAM67 support
- Remove driver for integrated WDT of ZFx86 486-based SoC
New drivers:
- Driver for Andes ATCWDT200
- Driver for Gunyah Watchdog
Added support to existing drivers:
- Add "apple,t8103-wdt" and "apple,t8122-wdt" compatibles to Apple
watchdog driver
- Add rockchip,rk3528-wdt and rockchip,rv1103b-wdt to snps,dw-wdt.yaml
- Document IPQ9650, IPQ5210, Shikra, Nord, and Hawi in qcom-wdt.yaml
Also document sram property and add support to get the bootstatus
to qcom wdt driver
- lenovo_se10_wdt: Fix use-after-rfree and add support for SE10 Gen 2
platform
- ti,rti-wdt: Add ti,am62l-rti-wdt compatible
- renesas: Document RZ/G3L support and rework example for
renesas,r9a09g057-wdt
Other bug fixes and improvements:
- Use named initializers (sc1200, ziirave_wdt)
- Allow pic32-dmt and pic32-wdt to be built with COMPILE_TEST
- realtek-otto: enable clock before using I/O, and prevent PHASE2 underflows
- rti_wdt: Add reaction control
- renesas,rzn1-wdt: Drop interrupt support and other cleanup
- gpio_wdt: Add ACPI support
- imx7ulp_wdt: Keep WDOG running until A55 enters WFI on i.MX94
- sprd_wdt: Remove redundant sprd_wdt_disable() on register failure
- bcm2835_wdt: Switch to new sys-off handler API
- sama5d4_wdt: Fix WDDIS detection on SAM9X60 and SAMA7G5
- hpwdt: Refine hpwdt message for UV platform
- Convert TS-4800 bindings to DT schema
- menz069_wdt: drop unneeded MODULE_ALIAS
- sp5100_tco: Use EFCH MMIO for newer Hygon FCH"
* tag 'watchdog-for-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (58 commits)
watchdog: sc1200: Drop unused assignment of pnp_device_id driver data
watchdog: unregister PM notifier on watchdog unregister
dt-bindings: watchdog: qcom-wdt: Document IPQ5210 watchdog
watchdog: dev: convert to kernel-doc comments
watchdog: core: clean up some comments
watchdog: uapi: add comments for what bit masks apply to
watchdog: linux/watchdog.h: repair kernel-doc comments
watchdog: add devm_watchdog_register_device() to watchdog-kernel-api
watchdog: ziirave_wdt: Use named initializers for struct i2c_device_id
watchdog: realtek-otto: enable clock before using I/O
watchdog: realtek-otto: prevent PHASE2 underflows
dt-bindings: watchdog: qcom-wdt: Document IPQ9650 watchdog
dt-bindings: watchdog: renesas,rzn1-wdt: interrupts are not required
dt-bindings: watchdog: apple,wdt: Add t8122 compatible
watchdog: apple: Add "apple,t8103-wdt" compatible
watchdog: rzn1: remove now obsolete interrupt support
dt-bindings: watchdog: Add watchdog compatible for RK3528
watchdog: convert the Kconfig dependency on OF_GPIO to OF
watchdog: Remove AMD Elan SC520 processor watchdog driver
watchdog: lenovo_se10_wdt: Fix use-after-free and resource leak risk
...
|
||
|
Dragos Tatulea
|
5c4adb7fb4 |
netdev: expose io_uring rx_page_order order via netlink
This adds observability for the io_uring zcrx rx-buf-len configuration. Signed-off-by: Dragos Tatulea <dtatulea@nvidia.com> Reviewed-by: Yael Chemla <ychemla@nvidia.com> Reviewed-by: Tariq Toukan <tariqt@nvidia.com> Acked-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://patch.msgid.link/20260612211709.1456966-3-dtatulea@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Paolo Bonzini
|
4dffb0a5d1 |
KVM: s390: New features for 7.2
New features for 7.2 for KVM/s390: * KVM_PRE_FAULT_MEMORY support * Support for 2G hugepages * Support for the ASTFLEIE 2 facility * kvm_arch_set_irq_inatomic Fast Inject * Fix potential leak of uninitialized bytes -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEoWuZBM6M3lCBSfTnuARItAMU6BMFAmov7sIACgkQuARItAMU 6BNlChAArkYNfy+aHUKDV+fTbYobSaCLPTTEXtDwkykPIC4CQa55kc/rcXWPxtw8 C9YupDZ/LFsfbP/bUKXssPcU5fOt2K4BMJOiB/3J4MrfCdEM50KEOGb20f7TRf2Y CYVOFEjHum2nA3N7p13VLbUGj+yCzisMCejeVXDQY5nStn+4pcE1S1CZKuZ2k7Vz a72CGg6CUs5Ee4yRlsqoUzpqtEIGbOWVbJKVjf7pRSqBgYQQrrpJ0ImleujrAsSA eKWnAKUJ/JxpnRRZtudl663v+YXZs2q4cHsKACZ0eugSQIKEU1RYaobz6/e2D7g6 AOxKurd0YPCrtEulZzwQT+uY3KJXVt8J6KBHEeJiTLeG2Dmm7/dL6t4Y9CNqpGK/ nx/U05tGqcJ2cvWGAB3NXVj3n1ocrgy9+OUCbLw9YaxeqEAdPKTeRqE4nl6+mla6 F0t1dEEqJNbm44rcH9sHLzJiOZh4ziKnLT0VwJFGwUDMcNsl+uNqZtl4tjWfD3+t 15nwUoOiVWPGKqSnXVl8QRCQvAmQ3wK7ThIR2MOCYM4y2sfdF+c5QjX1uznQHc5j 1o4oSjN1hDNxvjMzGOM2Xn3swtCPhCAzQZCr3JtZkB5je5jtV047uRJTYjqiXgKD FnQ7VQzDFTEDhhLWgJJNgjUrKScKfMSrQpapgu0LWSjqisjToHg= =GOQC -----END PGP SIGNATURE----- Merge tag 'kvm-s390-next-7.2-1' of https://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD KVM: s390: New features for 7.2 New features for 7.2 for KVM/s390: * KVM_PRE_FAULT_MEMORY support * Support for 2G hugepages * Support for the ASTFLEIE 2 facility * kvm_arch_set_irq_inatomic Fast Inject * Fix potential leak of uninitialized bytes |
||
|
Linus Torvalds
|
764e77d868 |
Locking updates for v7.2:
Futex updates:
- Optimize futex hash bucket access patterns (Peter Zijlstra)
- Large series to address the robust futex unlock race for real,
by Thomas Gleixner:
"The robust futex unlock mechanism is racy in respect
to the clearing of the robust_list_head::list_op_pending
pointer because unlock and clearing the pointer are not
atomic. The race window is between the unlock and clearing the
pending op pointer. If the task is forced to exit in this
window, exit will access a potentially invalid pending op
pointer when cleaning up the robust list. That happens if
another task manages to unmap the object containing the lock
before the cleanup, which results in an UAF. In the worst case
this UAF can lead to memory corruption when unrelated content
has been mapped to the same address by the time the access
happens.
User space can't solve this problem without help from the kernel.
This series provides the kernel side infrastructure to help it
along:
1) Combined unlock, pointer clearing, wake-up for the
contended case
2) VDSO based unlock and pointer clearing helpers with a
fix-up function in the kernel when user space was interrupted
within the critical section.
... with help by André Almeida:
- Add a note about robust list race condition (André Almeida)
- Add self-tests for robust release operations (André Almeida)
Context analysis updates:
- Implement context analysis for 'struct rt_mutex'.
(Bart Van Assche)
- Bump required Clang version to 23 (Marco Elver)
Guard infrastructure updates:
- Series to remove NULL check from unconditional guards
(Dmitry Ilvokhin)
Lockdep updates:
- Restore self-test migrate_disable() and sched_rt_mutex
state on PREEMPT_RT (Karl Mehltretter)
Membarriers updates:
- Use per-CPU mutexes for targeted commands (Aniket Gattani)
- Modernize membarrier_global_expedited with cleanup guards
(Aniket Gattani)
- Add rseq stress test for CFS throttle interactions (Aniket Gattani)
percpu-rwsems updates:
- Extract __percpu_up_read() to optimize inlining overhead
(Dmitry Ilvokhin)
Seqlocks updates:
- Allow UBSAN_ALIGNMENT to fail optimizing (Heiko Carstens)
Lock tracing:
- Add contended_release tracepoint to sleepable locks
such as mutexes, percpu-rwsems, rtmutexes, rwsems
and semaphores. (Dmitry Ilvokhin)
MAINTAINERS updates:
- MAINTAINERS: Add RUST [SYNC] entry (Boqun Feng)
Misc updates and fixes by Randy Dunlap, YE WEI-HONG,
Fabricio Parra, Dmitry Ilvokhin and Peter Zijlstra.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'locking-core-2026-06-14' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar:
"Futex updates:
- Optimize futex hash bucket access patterns (Peter Zijlstra)
- Large series to address the robust futex unlock race for real, by
Thomas Gleixner:
"The robust futex unlock mechanism is racy in respect to the
clearing of the robust_list_head::list_op_pending pointer because
unlock and clearing the pointer are not atomic.
The race window is between the unlock and clearing the pending op
pointer. If the task is forced to exit in this window, exit will
access a potentially invalid pending op pointer when cleaning up
the robust list.
That happens if another task manages to unmap the object
containing the lock before the cleanup, which results in an UAF.
In the worst case this UAF can lead to memory corruption when
unrelated content has been mapped to the same address by the time
the access happens.
User space can't solve this problem without help from the kernel.
This series provides the kernel side infrastructure to help it
along:
1) Combined unlock, pointer clearing, wake-up for the
contended case
2) VDSO based unlock and pointer clearing helpers with a
fix-up function in the kernel when user space was interrupted
within the critical section.
... with help by André Almeida:
- Add a note about robust list race condition (André Almeida)
- Add self-tests for robust release operations (André Almeida)
Context analysis updates:
- Implement context analysis for 'struct rt_mutex'. (Bart Van Assche)
- Bump required Clang version to 23 (Marco Elver)
Guard infrastructure updates:
- Series to remove NULL check from unconditional guards (Dmitry
Ilvokhin)
Lockdep updates:
- Restore self-test migrate_disable() and sched_rt_mutex state on
PREEMPT_RT (Karl Mehltretter)
Membarriers updates:
- Use per-CPU mutexes for targeted commands (Aniket Gattani)
- Modernize membarrier_global_expedited with cleanup guards (Aniket
Gattani)
- Add rseq stress test for CFS throttle interactions (Aniket Gattani)
percpu-rwsems updates:
- Extract __percpu_up_read() to optimize inlining overhead (Dmitry
Ilvokhin)
Seqlocks updates:
- Allow UBSAN_ALIGNMENT to fail optimizing (Heiko Carstens)
Lock tracing:
- Add contended_release tracepoint to sleepable locks such as
mutexes, percpu-rwsems, rtmutexes, rwsems and semaphores (Dmitry
Ilvokhin)
MAINTAINERS updates:
- MAINTAINERS: Add RUST [SYNC] entry (Boqun Feng)
Misc updates and fixes by Randy Dunlap, YE WEI-HONG, Fabricio Parra,
Dmitry Ilvokhin and Peter Zijlstra"
* tag 'locking-core-2026-06-14' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip: (36 commits)
locking: Add contended_release tracepoint to sleepable locks
locking/percpu-rwsem: Extract __percpu_up_read()
tracing/lock: Remove unnecessary linux/sched.h include
futex: Optimize futex hash bucket access patterns
rust: sync: completion: Mark inline complete_all and wait_for_completion
MAINTAINERS: Add RUST [SYNC] entry
cleanup: Specify nonnull argument index
selftests: futex: Add tests for robust release operations
Documentation: futex: Add a note about robust list race condition
x86/vdso: Implement __vdso_futex_robust_try_unlock()
x86/vdso: Prepare for robust futex unlock support
futex: Provide infrastructure to plug the non contended robust futex unlock race
futex: Add robust futex unlock IP range
futex: Add support for unlocking robust futexes
futex: Cleanup UAPI defines
x86: Select ARCH_MEMORY_ORDER_TSO
uaccess: Provide unsafe_atomic_store_release_user()
futex: Provide UABI defines for robust list entry modifiers
futex: Move futex related mm_struct data into a struct
futex: Make futex_mm_init() void
...
|
||
|
Jiri Olsa
|
26330a9226 |
bpf: Add support to specify uprobe_multi target via file descriptor
Allow uprobe_multi link to identify the target binary by an already opened file descriptor. Adding new BPF_F_UPROBE_MULTI_PATH_FD flag and the path_fd field for the attr.link_create.uprobe_multi struct. When the flag is set, we resolve the target from path_fd, without the flag, we keep the existing string path behavior. I don't see a use case for supporting O_PATH file descriptors, because we need to read the binary first to get probes offsets, so I'm using the CLASS(fd, f), which fails for O_PATH fds. Assisted-by: Codex:GPT-5.4 Signed-off-by: Jiri Olsa <jolsa@kernel.org> Link: https://lore.kernel.org/r/20260611114230.950379-4-jolsa@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
||
|
Linus Torvalds
|
7e0e7bd60d |
vfs-7.2-rc1.misc
Please consider pulling these changes from the signed vfs-7.2-rc1.misc tag.
Thanks!
Christian
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Merge tag 'vfs-7.2-rc1.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull misc vfs updates from Christian Brauner:
"Features:
- Reduce pipe->mutex contention by pre-allocating pages outside the
lock in anon_pipe_write().
anon_pipe_write() called alloc_page() once per page while holding
pipe->mutex. The allocation can sleep doing direct reclaim and runs
memcg charging, which extends the critical section and stalls any
concurrent reader on the same mutex. Now up to 8 pages are
pre-allocated before the mutex is taken, leftovers are recycled
into the per-pipe tmp_page[] cache before unlock, and any remainder
is released after unlock, keeping the allocator out of the critical
section on both sides. On a writers x readers sweep with 64KB
writes against a 1 MB pipe throughput improves 6-28% and average
write latency drops 5-22%; under memory pressure - when the cost of
holding the mutex across reclaim is highest - throughput improves
21-48% and latency drops 17-33%. The microbenchmark is added to
selftests.
- uaccess/sockptr: fix the ignored_trailing logic in
copy_struct_to_user() to behave as documented and the usize check
in copy_struct_from_sockptr() for user pointers, and add
copy_struct_{from,to}_bounce_buffer() and copy_struct_to_sockptr()
helpers for upcoming users (IPPROTO_SMBDIRECT, IPPROTO_QUIC).
- bpf: add a sleepable bpf_real_inode() kfunc that resolves the real
inode backing a dentry via d_real_inode(). On overlayfs the inode
attached to the dentry doesn't carry the underlying device
information; this is used by the filesystem restriction BPF program
that was merged into systemd.
- docs: add guidelines for submitting new filesystems, motivated by
the maintenance burden abandoned and untestable filesystems impose
on VFS developers, blocking infrastructure work like folio
conversions and iomap migration.
Fixes:
- libfs: set SB_I_NOEXEC and SB_I_NODEV by default in init_pseudo()
and drop the now-redundant assignments in callers. This began as a
one-line dma-buf fix for a path_noexec() warning; a pseudo
filesystem has no reason not to set SB_I_NOEXEC. All init_pseudo()
callers were audited: the only visible effect is on dma-buf where
SB_I_NOEXEC silences the warning.
- Handle set_blocksize() failures in legacy filesystems (bfs, hpfs,
qnx4, jfs, befs, affs, isofs, minix, ntfs3, omfs). Mounting a
device with a sector size > PAGE_SIZE crashed roughly half of them;
the rest had the same missing error handling pattern. Plus a
follow-up releasing the superblock buffer_head when setting the
minix v3 block size fails.
- mount: honour SB_NOUSER in the new mount API.
- fs/fcntl: fix a SOFTIRQ-unsafe lock order in fasync signaling by
switching the process-group paths of send_sigio() and send_sigurg()
from read_lock(&tasklist_lock) to RCU, matching the single-PID
path.
- vfs: add an FS_USERNS_DELEGATABLE flag and set it for NFS, fixing
delegated NFS mounts (fsopen() in a container with the mount
performed by a privileged daemon) that broke when non-init
s_user_ns was tied to FS_USERNS_MOUNT.
- selftests/namespaces: fix a hang in nsid_test where an unreaped
grandchild kept the TAP pipe write-end open, a waitpid(-1) race in
listns_efault_test, and a false FAIL on kernels without listns()
where the tests should SKIP.
- filelock: fix the break_lease() stub signature for
CONFIG_FILE_LOCKING=n.
- init/initramfs_test: wait for the async initramfs unpacking before
running; the test and do_populate_rootfs() share the parser state.
- fs/coredump: reduce redundant log noise in
validate_coredump_safety().
- iomap: pass the correct length to fserror_report_io() in
__iomap_write_begin().
- backing-file: fix the backing_file_open() kerneldoc.
Cleanups:
- initramfs: refactor the cpio hex header parsing to use hex2bin()
instead of the hand-rolled simple_strntoul() which is reverted, and
extend the initramfs KUnit tests to cover header fields with 0x
prefixes.
- Replace __get_free_pages() and friends with kmalloc()/kzalloc()
across quota, proc, ocfs2/dlm, nilfs2, nfs, nfsd, libfs, jfs, jbd2,
isofs, fuse, select, namespace, configfs, binfmt_misc, bfs, and the
do_mounts init code - part of the larger work of replacing page
allocator calls with kmalloc().
- Use clear_and_wake_up_bit() in unlock_buffer() and
journal_end_buffer_io_sync() instead of open-coding the sequence.
- Drop unused VFS exports: unexport drop_super_exclusive(), remove
start_removing_user_path_at(), and fold __start_removing_path()
into start_removing_path().
- fs/read_write: narrow the __kernel_write() export with
EXPORT_SYMBOL_FOR_MODULES().
- vfs: uapi: retire octal and hex constants in favor of (1 << n) for
the O_ flags. Finding a free bit for a new flag across the
architectures was needlessly hard with the mixed bases.
- dcache: add extra sanity checks of dead dentries in dentry_free()
via a new DENTRY_WARN_ONCE() that also prints d_flags.
- iov_iter: use kmemdup_array() in dup_iter() to harden the
allocation against multiplication overflow.
- fs/pipe: write to ->poll_usage only once.
- vfs: remove an always-taken if-branch in find_next_fd().
- dcache: use kmalloc_flex() for struct external_name in __d_alloc().
- namei: use QSTR() instead of QSTR_INIT() in path_pts().
- sync_file_range: delete dead S_ISLNK code.
- Comment fixes: retire a stale comment in fget_task_next() and fix
assorted spelling mistakes"
* tag 'vfs-7.2-rc1.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (73 commits)
backing-file: fix backing_file_open() kerneldoc parameter
iomap: pass the correct len to fserror_report_io in __iomap_write_begin
vfs: add FS_USERNS_DELEGATABLE flag and set it for NFS
filelock: fix break_lease() stub signature for CONFIG_FILE_LOCKING=n
vfs: uapi: retire octal and hex numbers in favor of (1 << n) for O_ flags
bpf: add bpf_real_inode() kfunc
fs/read_write: Do not export __kernel_write() to the entire world
libfs: drop redundant SB_I_NOEXEC/SB_I_NODEV in init_pseudo() callers
libfs: set SB_I_NOEXEC and SB_I_NODEV by default in init_pseudo()
mount: honour SB_NOUSER in the new mount API
fs/fcntl: fix SOFTIRQ-unsafe lock order in fasync signaling
selftests/pipe: add pipe_bench microbenchmark
fs/pipe: pre-allocate pages outside pipe->mutex in anon_pipe_write
fs: retire stale comment in fget_task_next()
fs: fix spelling mistakes in comment
bfs: replace get_zeroed_page() with kzalloc()
binfmt_misc: replace __get_free_page() with kmalloc()
configfs: replace __get_free_pages() with kzalloc()
fs/namespace: use __getname() to allocate mntpath buffer
fs/select: replace __get_free_page() with kmalloc()
...
|
||
|
Linus Torvalds
|
50b900c564 |
vfs-7.2-rc1.openat2
Please consider pulling these changes from the signed vfs-7.2-rc1.openat2 tag.
Thanks!
Christian
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Merge tag 'vfs-7.2-rc1.openat2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull openat2 updates from Christian Brauner:
"Features:
- Add O_EMPTYPATH to openat(2)/openat2(2). To get an operable file
descriptor from an O_PATH file descriptor it is possible to use
openat(fd, ".", O_DIRECTORY) for directories, but other file types
require going through open("/proc/<pid>/fd/<nr>") and thus depend
on a functioning procfs.
With O_EMPTYPATH an empty path string is accepted and LOOKUP_EMPTY
is set at path resolution time, allowing to reopen the file behind
the file descriptor directly. Selftests are included.
- Add an OPENAT2_REGULAR flag for openat2(2) which refuses to open
anything but regular files with the new EFTYPE error code.
This implements the "ability to only open regular files" feature
requested by userspace via uapi-group.org and protects services
from being redirected to fifos, device nodes, and friends.
All atomic_open implementations were audited for OPENAT2_REGULAR
handling. Explicit checks were added to ceph, gfs2, nfs (v4), and
cifs/smb - these are the filesystems whose atomic_open can
encounter an existing non-regular file and would otherwise call
finish_open() on it or return a misleading error code.
The remaining implementations (9p, fuse, vboxsf, nfs v2/v3) only
call finish_open() on freshly created files and use
finish_no_open() for lookup hits, letting the VFS catch non-regular
files via the do_open() safety net.
Cleanups:
- Migrate the openat2 selftests to the kselftest harness and move
them under selftests/filesystems/. The tests were written in the
early days of selftests' TAP support and the modern kselftest
harness is much easier to follow and maintain. The contents of the
tests are unchanged and the new emptypath tests are ported on top.
- Make the LAST_XXX last-type constants private to fs/namei.c. The
only user outside of fs/namei.c was ksmbd which only needs to know
whether the last component is a regular one, so
vfs_path_parent_lookup() now performs the LAST_NORM check
internally. The ints are replaced with a dedicated enum last_type"
* tag 'vfs-7.2-rc1.openat2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
vfs: replace ints with enum last_type for LAST_XXX
vfs: make LAST_XXX private to fs/namei.c
selftests: openat2: port emptypath_test to kselftest harness
kselftest/openat2: test for OPENAT2_REGULAR flag
openat2: new OPENAT2_REGULAR flag support
openat2: introduce EFTYPE error code
selftest: add tests for O_EMPTYPATH
vfs: add O_EMPTYPATH to openat(2)/openat2(2)
selftests: openat2: migrate to kselftest harness
selftests: openat2: switch from custom ARRAY_LEN to ARRAY_SIZE
selftests: openat2: move helpers to header
selftests: move openat2 tests to selftests/filesystems/
|
||
|
Linus Torvalds
|
5d15ab717d |
vfs-7.2-rc1.casefold
Please consider pulling these changes from the signed vfs-7.2-rc1.casefold tag. Thanks! Christian -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCaiwLKgAKCRCRxhvAZXjc omRSAP4valdmpvuSFbc84F6nn0LjDhTR+zg3uX2iGF6sWaQLjAEAyAhuDH23SQyz SSj2KCh/G2c/IXCVM5j0zn7fZxeKBA4= =GA7C -----END PGP SIGNATURE----- Merge tag 'vfs-7.2-rc1.casefold' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull vfs casefolding updates from Christian Brauner: "This exposes the case folding behavior of local filesystems so that file servers - nfsd, ksmbd, and user space file servers - can report the actual behavior to clients instead of guessing. Filesystems report case-insensitive and case-nonpreserving behavior via new file_kattr flags in their fileattr_get implementations. fat, exfat, ntfs3, hfs, hfsplus, xfs, cifs, nfs, vboxsf, and isofs are wired up. Local filesystems that are not explicitly handled default to the usual POSIX behavior of case-sensitive and case-preserving. nfsd uses this to report case folding via NFSv3 PATHCONF and to implement the NFSv4 FATTR4_CASE_INSENSITIVE and FATTR4_CASE_PRESERVING attributes - both have been part of the NFS protocols for decades to support clients on non-POSIX systems - and ksmbd reports it via FS_ATTRIBUTE_INFORMATION. Exposing the information through the fileattr uapi covers user space file servers. The immediate motivation is interoperability: Windows NFS clients hard-require servers to report case-insensitivity for Win32 applications to work correctly, and a client that knows the server is case-insensitive can avoid issuing multiple LOOKUP/READDIR requests searching for case variants. The Linux NFS client already grew support for case-insensitive shares years ago in support of the Hammerspace NFS server - negative dentry caching must be disabled (a lookup for "FILE.TXT" failing must not cache a negative entry when "file.txt" exists) and directory change invalidation must drop cached case-folded name variants. Such servers often operate in multi-protocol environments where a single file service instance caters to both NFS and SMB clients, and nfsd needs to report case folding properly to participate as a first-class citizen there. A follow-up series brings fixes for the initial work: the nfsd case-info probe now uses kernel credentials, maps -ESTALE to NFS3ERR_STALE, and has its cost capped across READDIR entries; the nfs client avoids transiently zeroed case capability bits during the probe and skips the pathconf probe when neither field is consumed; the FS_CASEFOLD_FL semantics are clarified in the UAPI header; and the tools UAPI headers are synced" * tag 'vfs-7.2-rc1.casefold' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (22 commits) nfsd: Cap case-folding probe cost across READDIR entries nfsd: Map -ESTALE from case probe to NFS3ERR_STALE nfsd: Use kernel credentials for case-info probe fs: Clarify FS_CASEFOLD_FL semantics in UAPI header nfs: Skip pathconf probe when neither field is consumed nfs: Avoid transient zeroed case capability bits during probe tools headers UAPI: Sync case-sensitivity flags from linux/fs.h ksmbd: Report filesystem case sensitivity via FS_ATTRIBUTE_INFORMATION nfsd: Implement NFSv4 FATTR4_CASE_INSENSITIVE and FATTR4_CASE_PRESERVING nfsd: Report export case-folding via NFSv3 PATHCONF isofs: Implement fileattr_get for case sensitivity vboxsf: Implement fileattr_get for case sensitivity nfs: Implement fileattr_get for case sensitivity cifs: Implement fileattr_get for case sensitivity xfs: Report case sensitivity in fileattr_get hfsplus: Report case sensitivity in fileattr_get hfs: Implement fileattr_get for case sensitivity ntfs3: Implement fileattr_get for case sensitivity exfat: Implement fileattr_get for case sensitivity fat: Implement fileattr_get for case sensitivity ... |
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Tingmao Wang
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29752205db
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landlock: Add API support and docs for the quiet flags
Adds the UAPI for the quiet flags feature (but not the implementation yet). Even though currently LANDLOCK_ADD_RULE_QUIET only affects audit logging, in the future this can also be used as part of a supervisor mechanism, where it will also suppress denial notifications on a per-object basis. Thus the name is deliberately generic, as opposed to e.g. LANDLOCK_ADD_RULE_LOG_QUIET. According to pahole, even after adding the struct access_masks quiet_masks in struct landlock_hierarchy, the u32 log_* bitfield still only has a size of 2 bytes, so there's minimal wasted space. Assisted-by: GitHub-Copilot:claude-opus-4.8 Signed-off-by: Tingmao Wang <m@maowtm.org> [mic: Update date, fix comment formatting] Link: https://patch.msgid.link/031184748a8e74c0bb02f1fa13d7a3f10918c627.1781228815.git.m@maowtm.org Signed-off-by: Mickaël Salaün <mic@digikod.net> |
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Saeed Mahameed
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eb7b4d458e |
devlink: Implement devlink param multi attribute nested data values
Devlink param value attribute is not defined since devlink is handling the value validating and parsing internally, this allows us to implement multi attribute values without breaking any policies. Devlink param multi-attribute values are considered to be dynamically sized arrays of u64 values, by introducing a new devlink param type DEVLINK_PARAM_TYPE_U64_ARRAY, driver and user space can set a variable count of u64 values into the DEVLINK_ATTR_PARAM_VALUE_DATA attribute. Implement get/set parsing and add to the internal value structure passed to drivers. This is useful for devices that need to configure a list of values for a specific configuration. example: $ devlink dev param show pci/... name multi-value-param name multi-value-param type driver-specific values: cmode permanent value: 0,1,2,3,4,5,6,7 $ devlink dev param set pci/... name multi-value-param \ value 4,5,6,7,0,1,2,3 cmode permanent Signed-off-by: Saeed Mahameed <saeedm@nvidia.com> Signed-off-by: Ratheesh Kannoth <rkannoth@marvell.com> Link: https://patch.msgid.link/20260609040453.711932-5-rkannoth@marvell.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Matthieu Buffet
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e61247a2e6
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landlock: Add UDP send+connect access control
Add support for a second fine-grained UDP access right. LANDLOCK_ACCESS_NET_CONNECT_SEND_UDP controls the ability to set the remote port of a socket (via connect()) and to specify an explicit destination when sending a datagram, to override any remote peer set on a UDP socket (e.g. in sendto() or sendmsg()). It will be useful for applications that send datagrams, and for some servers too (those creating per-client sockets, which want to receive traffic only from a specific address). Similarly as for bind(), this access control is performed when configuring sockets, not in hot code paths. Add detection of when autobind is about to be required, and deny the operation if the process would not be allowed to call bind(0) explicitly. Autobind can only be performed in udp_lib_get_port() from code paths already controlled by LSM hooks: when connect()ing, sending a first datagram, and in some splice() EOF edge case which, afaiu, can only happen after a remote peer has been set. This invariant needs to be preserved to keep bind policies actually enforced. Signed-off-by: Matthieu Buffet <matthieu@buffet.re> Link: https://patch.msgid.link/20260611162107.49278-3-matthieu@buffet.re [mic: Add quick return for non-sandboxed tasks, fix sa_family dereferencing, fix comment formatting] Signed-off-by: Mickaël Salaün <mic@digikod.net> |
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Matthieu Buffet
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9a8ed15ce2
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landlock: Add UDP bind() access control
Add support for a first fine-grained UDP access right. LANDLOCK_ACCESS_NET_BIND_UDP controls the ability to set the local port of a UDP socket (via bind()). It will be useful for servers (to start receiving datagrams), and for some clients that need to use a specific source port (e.g. mDNS requires to use port 5353) For obvious performance concerns, access control is only enforced when configuring sockets, not when using them for common send/recv operations. Bump ABI to allow userspace to detect and use this new right. Signed-off-by: Matthieu Buffet <matthieu@buffet.re> Link: https://patch.msgid.link/20260611162107.49278-2-matthieu@buffet.re [mic: Fix comment formatting] Signed-off-by: Mickaël Salaün <mic@digikod.net> |
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Grzegorz Nitka
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9375487c0c |
dpll: add generic DPLL type
Add DPLL_TYPE_GENERIC to represent DPLL devices which do not fit the existing PPS or EEC classes. The UAPI type is intentionally generic. During netdev discussion, maintainers pointed out that introducing identifiers tied to a specific placement or single design does not scale across ASICs and vendors. The role of a DPLL is already inferable from the spawning driver, bus device, and pin topology, without encoding additional purpose-specific taxonomy in the type name. Using a generic type keeps the UAPI extensible and avoids premature naming that may become incorrect as new hardware topologies are exposed through the DPLL subsystem. Expose the new type through UAPI and netlink specification as "generic". Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: Grzegorz Nitka <grzegorz.nitka@intel.com> Link: https://patch.msgid.link/20260607183045.1213735-2-grzegorz.nitka@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Jakub Kicinski
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431662b642 |
ipsec-next-2026-06-12
-----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEH7ZpcWbFyOOp6OJbrB3Eaf9PW7cFAmortdsACgkQrB3Eaf9P W7eC8g/+JjaC75xnVJUZLnVqeyasXYs9HcAppT4IUPVKFm0iEitjE7smbUf1Zapp 1dyjVIAp1eqahJ8wY3u5OOq16UTkg38bEUXtlm5Txyr8EUOALtWE5DIHhT/LYns8 rDfVht9V+OuzjddYRwpQY/HYPC4WlxT1WOVDoKhJDDDiAph0JyyRLDlanp59Cmdh lxOHQ0ogh76SbUyaslWSYqBdaNq84DaV2fwNxpll27/b2Qix064Q+ZM4IrpulI8b H8Fb5u+R/3hGO+/TJPbOeRl6exw7aeU03+Gu9h6UFpQTlP9uzas8g/7xxlmJr7wq LcAz5JyMKapdSfoxI6Z2lXM0AtyM+B4iqHoQRKplF4QRjzCsHnmw0SSbv/nXwzrU 6/qHHRqtioKNGg99ptChBT36L0bLV78WE6TdLHW/fxGxLIoJWGgyltAZ9/TNH/es dcPEuecYl0vxz2kspXCiRQGTGI8gDPaTaOiiNvQfhOb9rT+767oqeUvxuW7WRAW+ STSShHZqDYVTNtHR7dl0X1BtEqHLryyHMi4gsB+NpOP+snZaUmRpTTVdYdl/GRK1 WAgYkgFsGThwR4fZUtDHOAt5VVyonvA//q+yYzgzi8RtpFxsGDQsANneD8m7tQL0 iTmx0vBR+AVgaiHdhsVN/rQDLdMbv+W3n03Kx1kk3+I4udTkVuE= =bils -----END PGP SIGNATURE----- Merge tag 'ipsec-next-2026-06-12' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next Steffen Klassert says: ==================== pull request (net-next): ipsec-next 2026-06-12 1) Replace the open-coded manual cleanup in xfrm_add_policy() error path with xfrm_policy_destroy() for consistency with xfrm_policy_construct(). From Deepanshu Kartikey. 2) Limit XFRMA_TFCPAD to a sensible maximum (max IP length, 64k) since u32 is excessive for traffic flow confidentiality padding. From David Ahern. 3) Add a new netlink message XFRM_MSG_MIGRATE_STATE that allows migrating individual IPsec SAs independently of their policies. The existing XFRM_MSG_MIGRATE is tightly coupled to policy+SA migration, lacks SPI for unique SA identification, and cannot express reqid changes or migrate Transport mode selectors. The new interface identifies the SA via SPI and mark, supports reqid changes, address family changes, encap removal, and uses an atomic create+install flow under x->lock to prevent SN/IV reuse during AEAD SA migration. From Antony Antony. * tag 'ipsec-next-2026-06-12' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next: xfrm: add documentation for XFRM_MSG_MIGRATE_STATE xfrm: restrict netlink attributes for XFRM_MSG_MIGRATE_STATE xfrm: add XFRM_MSG_MIGRATE_STATE for single SA migration xfrm: make xfrm_dev_state_add xuo parameter const xfrm: extract address family and selector validation helpers xfrm: refactor XFRMA_MTIMER_THRESH validation into a helper xfrm: move encap and xuo into struct xfrm_migrate xfrm: add error messages to state migration xfrm: add state synchronization after migration xfrm: check family before comparing addresses in migrate xfrm: split xfrm_state_migrate into create and install functions xfrm: rename reqid in xfrm_migrate xfrm: fix NAT-related field inheritance in SA migration xfrm: allow migration from UDP encapsulated to non-encapsulated ESP xfrm: add extack to xfrm_init_state xfrm: remove redundant assignments xfrm: Reject excessive values for XFRMA_TFCPAD xfrm: cleanup error path in xfrm_add_policy() ==================== Link: https://patch.msgid.link/20260612074725.1760473-1-steffen.klassert@secunet.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Wei Wang
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06c2dce2d0 |
psp: add new netlink cmd for dev-assoc and dev-disassoc
The main purpose of this cmd is to be able to associate a non-psp-capable device (e.g. veth or netkit) with a psp device. One use case is if we create a pair of veth/netkit, and assign 1 end inside a netns, while leaving the other end within the default netns, with a real PSP device, e.g. netdevsim or a physical PSP-capable NIC. With this command, we could associate the veth/netkit inside the netns with PSP device, so the virtual device could act as PSP-capable device to initiate PSP connections, and performs PSP encryption/decryption on the real PSP device. Signed-off-by: Wei Wang <weibunny@fb.com> Reviewed-by: Daniel Zahka <daniel.zahka@gmail.com> Link: https://patch.msgid.link/20260608233118.2694144-3-weibunny.kernel@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Sabrina Dubroca
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cdae65fc43 |
tls: remove tls_toe and the related driver
The tls_toe feature and its single user (chelsio chtls) have been unmaintained for multiple years. It also hooks into the core of the TCP implementation, and bypasses most of the networking stack. Signed-off-by: Sabrina Dubroca <sd@queasysnail.net> Reviewed-by: Eric Dumazet <edumazet@google.com> Link: https://patch.msgid.link/1f30e73275c07bf879f547589872d0916025a52e.1781165969.git.sd@queasysnail.net Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Alex Mastro
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298ab7e6f1 |
iommufd: Clarify IOAS_MAP_FILE dma-buf support
IOMMU_IOAS_MAP_FILE is documented as mapping a memfd, but the
implementation first tries to resolve the fd as a dma-buf and has a
special path for supported dma-buf exporters. In particular, VFIO PCI
dma-bufs exported through VFIO_DEVICE_FEATURE_DMA_BUF can be mapped when
they describe a single DMA range.
Update the UAPI comment so userspace understands that certain kinds of
dma-buf are supported in addition to memfd.
Fixes:
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Joerg Roedel
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dd8a3c6cd5 | Merge branches 'apple/dart', 'arm/smmu/updates', 'arm/smmu/bindings', 'rockchip', 'verisilicon', 'riscv', 'intel/vt-d', 'amd/amd-vi' and 'core' into next | ||
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Fidelio Lawson
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13655144dd |
net: ethtool: add KSZ87xx low-loss cable PHY tunables
Introduce vendor-specific PHY tunable identifiers to control the KSZ87xx low-loss cable erratum handling through the ethtool PHY tunable interface. The following tunables are added: - a boolean "short-cable" tunable, applying a documented and conservative preset intended for short or low-loss Ethernet cables; - an integer LPF bandwidth tunable, allowing advanced adjustment of the receiver low-pass filter bandwidth; - an integer DSP EQ initial value tunable, allowing advanced tuning of the PHY equalizer initialization. The actual behavior is implemented by the corresponding PHY and switch drivers. Reviewed-by: Marek Vasut <marex@nabladev.com> Reviewed-by: Nicolai Buchwitz <nb@tipi-net.de> Signed-off-by: Fidelio Lawson <fidelio.lawson@exotec.com> Link: https://patch.msgid.link/20260609-ksz87xx_errata_low_loss_connections-v10-2-9ba4418cf3db@exotec.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Tarun Sahu
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e98a9c6172 |
liveupdate: Document that retrieve failure is permanent
Signed-off-by: Tarun Sahu <tarunsahu@google.com> Reviewed-by: Pratyush Yadav (Google) <pratyush@kernel.org> Link: https://patch.msgid.link/faec5df2a3e90240cde5897bae2250cd7d44aeac.1781170056.git.tarunsahu@google.com Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org> |
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Louis Scalbert
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32b0b89533 |
bonding: 3ad: add lacp_strict configuration knob
When an 802.3ad (LACP) bonding interface has no slaves in the
collecting/distributing state, the bonding master still reports
carrier as up as long as at least 'min_links' slaves have carrier.
In this situation, only one slave is effectively used for TX/RX,
while traffic received on other slaves is dropped. Upper-layer
daemons therefore consider the interface operational, even though
traffic may be blackholed if the lack of LACP negotiation means
the partner is not ready to deal with traffic.
Introduce a configuration knob to control this behavior. It allows
the bonding master to assert carrier only when at least 'min_links'
slaves are in Collecting_Distributing state.
The default mode preserves the existing behavior. This patch only
introduces the knob; its behavior is implemented in the subsequent
commit.
Fixes:
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Nathan Chancellor
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8cb2c9285e |
can: virtio: Fix comment in UAPI header
When compile testing the UAPI headers with clang, there is an warning turned
error for using a C++ style ('//') comment, which is explicitly forbidden for
UAPI headers.
In file included from <built-in>:1:
./usr/include/linux/virtio_can.h:29:35: error: // comments are not allowed in this language [-Werror,-Wcomment]
29 | #define VIRTIO_CAN_MAX_DLEN 64 // this is like CANFD_MAX_DLEN
| ^
1 error generated.
Switch to a standard C style comment.
Fixes: 2b6b4bb7d96f ("can: virtio: Add virtio CAN driver")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Message-ID: <20260604-virtio_can-fix-uapi-comment-v1-1-199fa96ec5f0@kernel.org>
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Matias Ezequiel Vara Larsen
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083082a4e6 |
can: virtio: Add virtio CAN driver
Add virtio CAN driver based on Virtio 1.4 specification (see https://github.com/oasis-tcs/virtio-spec/tree/virtio-1.4). The driver implements a complete CAN bus interface over Virtio transport, supporting both CAN Classic and CAN-FD Ids. In term of frames, it supports classic and CAN FD. RTR frames are only supported with classic CAN. Usage: - "ip link set up can0" - start controller - "ip link set down can0" - stop controller - "candump can0" - receive frames - "cansend can0 123#DEADBEEF" - send frames Signed-off-by: Harald Mommer <harald.mommer@oss.qualcomm.com> Co-developed-by: Harald Mommer <harald.mommer@oss.qualcomm.com> Signed-off-by: Mikhail Golubev-Ciuchea <mikhail.golubev-ciuchea@oss.qualcomm.com> Co-developed-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Cc: Damir Shaikhutdinov <Damir.Shaikhutdinov@opensynergy.com> Reviewed-by: Francesco Valla <francesco@valla.it> Tested-by: Francesco Valla <francesco@valla.it> Signed-off-by: Matias Ezequiel Vara Larsen <mvaralar@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Message-ID: <ahXNb+KzuHYbS24+@fedora> |
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Ethan Carter Edwards
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02687282c7 |
virtio_console: Fix spelling mistake "colums" -> "columns"
There is a spelling mistake in a struct description. Fix it. Signed-off-by: Ethan Carter Edwards <ethan@ethancedwards.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Message-ID: <20260418-virtio-typo-v1-1-0df6f943a79d@ethancedwards.com> |
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Chuck Lever
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2eac189bb0 |
NFSD: Add NFSD_CMD_UNLOCK_EXPORT netlink command
When a filesystem is exported to NFS clients, NFSv4 state (opens, locks, delegations, layouts) holds references that prevent the underlying filesystem from being unmounted. NFSD_CMD_UNLOCK_FILESYSTEM addresses this at superblock granularity, but administrators unexporting a single path on a shared filesystem (e.g., one of several exports on the same device) need finer control. Add NFSD_CMD_UNLOCK_EXPORT, which revokes NFSv4 state acquired through exports of a specific path. Matching is by path identity (dentry + vfsmount) via the sc_export field on each nfs4_stid, so multiple svc_export objects for the same path -- one per auth_domain -- are handled correctly without requiring the caller to name a specific client. The command takes a single "path" attribute. Userspace (exportfs -u) sends this after removing the last client for a given path, enabling the underlying filesystem to be unmounted. When multiple clients share an export path, individual unexports do not trigger state revocation; only the final one does. Reviewed-by: Jeff Layton <jlayton@kernel.org> Tested-by: Dai Ngo <dai.ngo@oracle.com> Signed-off-by: Chuck Lever <chuck.lever@oracle.com> |
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Chuck Lever
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327c5168ef |
NFSD: Add NFSD_CMD_UNLOCK_FILESYSTEM netlink command
Add NFSD_CMD_UNLOCK_FILESYSTEM as a dedicated netlink command for revoking NFS state under a filesystem path, providing a netlink equivalent of /proc/fs/nfsd/unlock_fs. The command requires a "path" string attribute containing the filesystem path whose state should be released. The handler resolves the path to its superblock, then cancels async copies, releases NLM locks, and revokes NFSv4 state on that superblock. Reviewed-by: Jeff Layton <jlayton@kernel.org> Tested-by: Dai Ngo <dai.ngo@oracle.com> Signed-off-by: Chuck Lever <chuck.lever@oracle.com> |
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Chuck Lever
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978cda83de |
NFSD: Add NFSD_CMD_UNLOCK_IP netlink command
The existing write_unlock_ip procfs interface releases NLM file locks held by a specific client IP address, but procfs provides no structured way to extend that operation to other scopes such as revoking NFSv4 state. Add NFSD_CMD_UNLOCK_IP as a dedicated netlink command for releasing NLM locks by client address. The command accepts a binary sockaddr_in or sockaddr_in6 in its address attribute. The handler validates the address family and length, then calls nlmsvc_unlock_all_by_ip() to release matching NLM locks. Because lockd is a single global instance, that call operates across all network namespaces regardless of which namespace the caller inhabits. A separate netlink command for filesystem-scoped unlock is added in a subsequent commit. The nfsd_ctl_unlock_ip tracepoint is updated from string-based address logging to __sockaddr, which stores the binary sockaddr and formats it with %pISpc. This affects both the new netlink path and the existing procfs write_unlock_ip path, giving consistent structured output in both cases. Reviewed-by: Jeff Layton <jlayton@kernel.org> Tested-by: Dai Ngo <dai.ngo@oracle.com> Signed-off-by: Chuck Lever <chuck.lever@oracle.com> |
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Claudio Imbrenda
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103ff3a50e |
KVM: s390: Add capability to support 2G hugepages
Add KVM_CAP_S390_HPAGE_2G to signal to userspace that 2G hugepages may be used to back the guest; restrictions apply similar to 1M hugepages. Enable the (for now still ignored) GMAP_FLAG_ALLOW_HPAGE_2G flag for the guest gmap, and propagate / disable it as necessary. Reviewed-by: Steffen Eiden <seiden@linux.ibm.com> Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com> Message-ID: <20260609150930.665370-3-imbrenda@linux.ibm.com> |
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David 'equinox' Lamparter
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69710a37ba |
if_ether.h: add 802.1AC, warn about GRE 0x00FE
Because LLC wasn't complicated/annoying enough, there's 2 more "ethertypes" being used for it: - 0x8870 is pretty "normal", it got standardized in 802.1AC-2016/Cor1-2018 for transporting LLC frames > 1500 bytes. It simply replaces the length value (which is no longer encoded, and must now be derived from the packet.) The actual value dates back to 2001; https://datatracker.ietf.org/doc/html/draft-ietf-isis-ext-eth-01 (it was used without "proper" standardization for a long time) - 0x00fe is a doozy - actually "invalid" depending on how you look at it; it's used in GRE (and possibly GENEVE) tunnels to transport the IS-IS routing protocol. https://seclists.org/tcpdump/2002/q4/61 is the best/oldest source I could find. It's inspired by the 0xfe SAP value, a GRE packet with protocol 0x00fe is followed by a payload "as if" it was Ethernet with "<length> 0xfe 0xfe 0x03". (Again the length isn't encoded explicitly anymore.) The 0x00fe value is quite close to other values the kernel is using internally for various things (after all they "won't clash for 1500 types"). Except this one does clash, and if someone unknowingly starts using it for something internal... we end up in a world of pain in getting IS-IS running on GRE tunnels. Hence the "WARNING". Signed-off-by: David 'equinox' Lamparter <equinox@diac24.net> Cc: Andrew Lunn <andrew+netdev@lunn.ch> Link: https://patch.msgid.link/20260605164144.81184-1-equinox@diac24.net Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Jakub Kicinski
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4ed4f607e1 |
This cleanup patchset includes the following patches, all by
Sven Eckelmann: - tp_meter: initialize last_recv_time during init - convert cancellation of work items to disable helper - clean up wifi detection cache (3 patches) - clean up kernel-doc: corrections, reword, typos (6 patches) -----BEGIN PGP SIGNATURE----- iQJKBAABCgA0FiEE1ilQI7G+y+fdhnrfoSvjmEKSnqEFAmoieDIWHHN3QHNpbW9u d3VuZGVybGljaC5kZQAKCRChK+OYQpKeoYaPD/9Y9C1G27NG7w8vpY/Z8AhSXp1W YRclcBwpjxCdFbLV6FvoKRaf97GxpkJUoYEzyFZgcfVhw3+KjlGTrj3yeKAPKB1W 5HrFUGSIusKUBl92dUJjcIQaIQO9oSnoI+wg4lZIOB8+6/3bZbQe9TKdINIp9g4q /wVXVMbFHw9PRh5WQ2TRTlOskWiMZbctSYkUlDWNx+lNkxABxUxxYf/mXfM3Bw8r HOfiqBf5h5KPHeO4hil3uwnvprXI/wZUeW7BGqwJu5o7VYru6lZfuX0bD4nlLD+9 M4F0gosPVbuRkgjyWtwbtZdnF800m10hxdySJn11VKzcviz9UWdmTnc619MLM6cF SkXtV7jh+gRCKEZr4ulTn7XRw3vU5AjN7/YHxkXgOpfxNonYCY7rbcQVbXdpdWxd u9ltY4vljzfQ7Wvwh1VBz4Y05plHdi6IcRb+9TezlSflNXQjSGZL3vbj+d0AOUEw 2cpwVcWM8QKhBMFK4kO9evFZEi2wOCxNLlD71RMwcHMaI91ZoIGKC5oLGNtpDTkV emH8HP59a6Dc3A4Ptmzl6Fc8iczHlLExf5BEeN9+4XgHRLi/KQDbine44Rp0Txek XC1bUSTI75H4hgrAQUX3Ly3tdzZPXFy6lWpIn/qYP/HvAR5X+xaouByUCDVHSqd2 TiWsWaMG4d4fdtrA7Q== =7tLs -----END PGP SIGNATURE----- Merge tag 'batadv-next-pullrequest-20260605' of https://git.open-mesh.org/batadv Simon Wunderlich says: ==================== This cleanup patchset includes the following patches, all by Sven Eckelmann: - tp_meter: initialize last_recv_time during init - convert cancellation of work items to disable helper - clean up wifi detection cache (3 patches) - clean up kernel-doc: corrections, reword, typos (6 patches) * tag 'batadv-next-pullrequest-20260605' of https://git.open-mesh.org/batadv: batman-adv: fix kernel-doc typos and grammar errors batman-adv: fix batadv_v_ogm_packet_recv error handling kernel-doc batman-adv: uapi: keep kernel-doc in struct member order batman-adv: bla: update stale kernel-doc batman-adv: tp_meter: update stale kernel-doc after refactoring batman-adv: correct batadv_wifi_* kernel-doc batman-adv: document cleanup of batadv_wifi_net_devices entries batman-adv: use GFP_KERNEL allocations for the wifi detection cache batman-adv: drop duplicated wifi_flags assignments batman-adv: convert cancellation of work items to disable helper batman-adv: tp_meter: initialize last_recv_time during init ==================== Link: https://patch.msgid.link/20260605072005.490368-1-sw@simonwunderlich.de Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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|
Randy Dunlap
|
38ecabc9af |
watchdog: uapi: add comments for what bit masks apply to
Add comments similar to those in include/linux/watchdog.h so that the reader/user doesn't have to dig into the API documentation files for this. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net> |
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|
Mark Harmstone
|
c6153ed23e |
btrfs: add ioctl GET_CSUMS to read raw checksums from file range
Add a new unprivileged BTRFS_IOC_GET_CSUMS ioctl, which can be used to
query the on-disk csums for a file range.
The ioctl is deliberately per-file rather than exposing raw csum tree
lookups, to avoid leaking information to users about files they may not
have access to.
This is done by userspace passing a struct btrfs_ioctl_get_csums_args to
the kernel, which details the offset and length we're interested in, and
a buffer for the kernel to write its results into. The kernel writes a
struct btrfs_ioctl_get_csums_entry into the buffer, followed by the
csums if available. The maximum size of the user buffer is capped to
16MiB.
If the extent is an uncompressed, non-NODATASUM extent, the kernel sets
the entry type to BTRFS_GET_CSUMS_HAS_CSUMS and follows it with the
csums. If it is sparse, preallocated, or beyond the EOF, it sets the
type to BTRFS_GET_CSUMS_ZEROED - this is so userspace knows it can use
the precomputed hash of the zero sector. Otherwise, it sets the type to
BTRFS_GET_CSUMS_NODATASUM, BTRFS_GET_CSUMS_COMPRESSED,
BTRFS_GET_CSUM_ENCRYPTED, or BTRFS_GET_CSUM_INLINE.
For example, a file with a [0, 4K) hole and [4K, 12K) data extent would
produce the following output buffer:
| [0, 4K) ZEROED | [4K, 12K) HAS_CSUMS | csum data |
We do store the csums of compressed extents, but we deliberately don't
return them here: they're calculated over the compressed data, not the
uncompressed data that's returned to userspace. Similarly for encrypted
data, once encryption is supported, in which the csums will be on the
ciphertext.
The main use case for this is for speeding up mkfs.btrfs --rootdir. For
the case when the source FS is btrfs and using the same csum algorithm,
we can avoid having to recalculate the csums - in my synthetic
benchmarks (16GB file on a spinning-rust drive), this resulted in a ~11%
speed-up (218s to 196s).
When using the --reflink option added in btrfs-progs v6.16.1, we can forgo
reading the data entirely, resulting a ~2200% speed-up on the same test
(128s to 6s).
# mkdir rootdir
# dd if=/dev/urandom of=rootdir/file bs=4096 count=4194304
(without ioctl)
# echo 3 > /proc/sys/vm/drop_caches
# time mkfs.btrfs --rootdir rootdir testimg
...
real 3m37.965s
user 0m5.496s
sys 0m6.125s
# echo 3 > /proc/sys/vm/drop_caches
# time mkfs.btrfs --rootdir rootdir --reflink testimg
...
real 2m8.342s
user 0m5.472s
sys 0m1.667s
(with ioctl)
# echo 3 > /proc/sys/vm/drop_caches
# time mkfs.btrfs --rootdir rootdir testimg
...
real 3m15.865s
user 0m4.258s
sys 0m6.261s
# echo 3 > /proc/sys/vm/drop_caches
# time mkfs.btrfs --rootdir rootdir --reflink testimg
...
real 0m5.847s
user 0m2.899s
sys 0m0.097s
Another notable use case is for deduplication, where reading the
checksums may serve as a hint instead of reading the whole file data.
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Mark Harmstone <mark@harmstone.com>
Signed-off-by: David Sterba <dsterba@suse.com>
|
||
|
Jiri Olsa
|
ba042ed644 |
bpf: Add support for tracing_multi link session
Adding support to use session attachment with tracing_multi link. Adding new BPF_TRACE_FSESSION_MULTI program attach type, that follows the BPF_TRACE_FSESSION behaviour but on the tracing_multi link. Such program is called on entry and exit of the attached function and allows to pass cookie value from entry to exit execution. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Link: https://lore.kernel.org/r/20260606123955.345967-16-jolsa@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
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|
Jiri Olsa
|
46b42af27d |
bpf: Add support for tracing_multi link cookies
Add support to specify cookies for tracing_multi link. Cookies are provided in array where each value is paired with provided BTF ID value with the same array index. Such cookie can be retrieved by bpf program with bpf_get_attach_cookie helper call. We need to sort cookies array together with ids array in check_dup_ids, to keep the id->cookie relation. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Link: https://lore.kernel.org/r/20260606123955.345967-15-jolsa@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
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|
Jiri Olsa
|
c1d32dea5d |
bpf: Add support for tracing multi link
Adding new link to allow to attach program to multiple function
BTF IDs. The link is represented by struct bpf_tracing_multi_link.
To configure the link, new fields are added to bpf_attr::link_create
to pass array of BTF IDs;
struct {
__aligned_u64 ids;
__u32 cnt;
} tracing_multi;
Each BTF ID represents function (BTF_KIND_FUNC) that the link will
attach bpf program to.
We use previously added bpf_trampoline_multi_attach/detach functions
to attach/detach the link.
The linkinfo/fdinfo callbacks will be implemented in following changes.
Note this is supported only for archs (x86_64) with ftrace direct and
have single ops support.
CONFIG_DYNAMIC_FTRACE_WITH_DIRECT_CALLS &&
CONFIG_HAVE_SINGLE_FTRACE_DIRECT_OPS
Note using sort_r (instead of plain sort) in check_dup_ids, because we
will use the swap callback in following changes.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/r/20260606123955.345967-14-jolsa@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
|
||
|
Jiri Olsa
|
d14e6b4346 |
bpf: Add multi tracing attach types
Adding new program attach types multi tracing attachment: BPF_TRACE_FENTRY_MULTI BPF_TRACE_FEXIT_MULTI and their base support in verifier code. Programs with such attach type will use specific link attachment interface coming in following changes. This was suggested by Andrii some (long) time ago and turned out to be easier than having special program flag for that. Bpf programs with such types have 'bpf_multi_func' function set as their attach_btf_id and keep module reference when it's specified by attach_prog_fd. They are also accepted as sleepable programs during verification, and the real validation for specific BTF_IDs/functions will happen during the multi link attachment in following changes. Suggested-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Link: https://lore.kernel.org/r/20260606123955.345967-11-jolsa@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
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|
Jori Koolstra
|
0da79c259a
|
vfs: uapi: retire octal and hex numbers in favor of (1 << n) for O_ flags
A recent build failure[1] exposed the diffculty of working with the
current octal and hex definitions of O_ flags when trying to find a gap
for a new flag. This difficulty is compounded by the fact that O_ flags
may have architectural specific values.
Replace the hex/octal #defines, which are hard to parse when looking for
free bits, with explicit bit shifts like (1 << 11). Also, add comments
that identify which architectures redefine some of the seemingly free
("cursed") bits in uapi/asm-generic/fcntl.h. These should not be used to
define new O_ flags (for now, at least).
The translastion was done with Claude Opus 4.8, and verified with a
(non-AI) gawk script. The accounting of which architectures claim
which bit-gaps in uapi/asm-generic/fcntl.h is also done by hand.
[1]: https://lore.kernel.org/all/agruPPybCx8q2XcJ@sirena.org.uk/
Assisted-by: Claude:Opus 4.8
Signed-off-by: Jori Koolstra <jkoolstra@xs4all.nl>
Link: https://patch.msgid.link/20260604222405.5382-1-jkoolstra@xs4all.nl
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
|
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|
Leon Hwang
|
786be2b059 |
bpf: Check tail zero of bpf_prog_info
Since there're 4 bytes padding at the end of struct bpf_prog_info, they
won't be checked by bpf_check_uarg_tail_zero().
pahole -C bpf_prog_info ./vmlinux
struct bpf_prog_info {
...
__u32 attach_btf_obj_id; /* 220 4 */
__u32 attach_btf_id; /* 224 4 */
/* size: 232, cachelines: 4, members: 38 */
/* sum members: 224 */
/* sum bitfield members: 1 bits, bit holes: 1, sum bit holes: 31 bits */
/* padding: 4 */
/* forced alignments: 9 */
/* last cacheline: 40 bytes */
} __attribute__((__aligned__(8)));
If a future kernel extension adds a new 4-byte field, older userspace
programs allocating this structure on the stack might inadvertently pass
uninitialized stack garbage into the new field, permanently breaking
backward compatibility. -- sashiko [1]
Fix it by changing sizeof(info) to
offsetofend(struct bpf_prog_info, attach_btf_id).
And, add "__u32 :32" to the tail of struct bpf_prog_info.
[1] https://lore.kernel.org/bpf/20260513224823.6494FC19425@smtp.kernel.org/
Fixes:
|
||
|
Leon Hwang
|
e2a49fdb1b |
bpf: Check tail zero of bpf_map_info
Since there're 4 bytes padding at the end of struct bpf_map_info, they
won't be checked by bpf_check_uarg_tail_zero().
pahole -C bpf_map_info ./vmlinux
struct bpf_map_info {
...
__u64 hash __attribute__((__aligned__(8))); /* 88 8 */
__u32 hash_size; /* 96 4 */
/* size: 104, cachelines: 2, members: 18 */
/* padding: 4 */
/* forced alignments: 1 */
/* last cacheline: 40 bytes */
} __attribute__((__aligned__(8)));
If a future kernel extension adds a new 4-byte field, older userspace
programs allocating this structure on the stack might inadvertently pass
uninitialized stack garbage into the new field, permanently breaking
backward compatibility. -- sashiko [1]
Fix it by changing sizeof(info) to
offsetofend(struct bpf_map_info, hash_size).
And, add "__u32 :32" to the tail of struct bpf_map_info.
[1] https://lore.kernel.org/bpf/20260513224823.6494FC19425@smtp.kernel.org/
Fixes:
|
||
|
Ankit Agrawal
|
682ecb14e8 |
vfio/nvgrace-gpu: Add Blackwell-Next GPU readiness check via CXL DVSEC
Add a CXL DVSEC-based readiness check for Blackwell-Next GPUs alongside the existing legacy BAR0 polling path. The CXL Device DVSEC offset is discovered at probe time. Probe, fault and read/write paths then branch on that to use either the legacy BAR0 polling or the CXL DVSEC polling. The CXL path polls Memory_Active, requiring MEM_INFO_VALID within 1s and MEM_ACTIVE within Memory_Active_Timeout (up to 256s) as per CXL spec r4.0 sec 8.1.3.8.2. Given the long worst-case wait, the CXL poll runs outside memory_lock with only a quick readiness check is done under the lock. The poll loops sleep with schedule_timeout_killable() and return -EINTR on a fatal signal. This avoids hung-task panics during the long uninterruptible wait. Extend this to the legacy based wait as well for improvement. In the fault handler the wait runs locklessly before memory_lock. If a reset races in, the in-lock recheck returns -EAGAIN and the wait is retried rather than returning a spurious VM_FAULT_SIGBUS. Add PCI_DVSEC_CXL_MEM_ACTIVE_TIMEOUT to pci_regs.h for the timeout field. Cc: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Cc: Kevin Tian <kevin.tian@intel.com> Suggested-by: Alex Williamson <alex@shazbot.org> Signed-off-by: Ankit Agrawal <ankita@nvidia.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Link: https://lore.kernel.org/r/20260602063015.3915-1-ankita@nvidia.com Signed-off-by: Alex Williamson <alex@shazbot.org> |
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|
Mykyta Yatsenko
|
16b4d3e2fb |
bpf: Implement resizable hashmap basic functions
Use rhashtable_lookup_likely() for lookups, rhashtable_remove_fast() for deletes, and rhashtable_lookup_get_insert_fast() for inserts. Updates modify values in place under RCU rather than allocating a new element and swapping the pointer (as regular htab does). This trades read consistency for performance: concurrent readers may see partial updates. BPF_F_LOCK support and special-field handling (timers, kptrs, etc.) follow in a later commit. Initialize rhashtable with bpf_mem_alloc element cache. Require BPF_F_NO_PREALLOC. Limit max_entries to 2^31. Free elements via rhashtable_free_and_destroy(). Signed-off-by: Mykyta Yatsenko <yatsenko@meta.com> Link: https://lore.kernel.org/r/20260605-rhash-v7-4-5b8e05f8630d@meta.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
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|
Adrián Larumbe
|
12cf826bf1 |
drm/panthor: Support sparse mappings
Allow UM to bind sparsely populated memory regions by cyclically mapping virtual ranges over a kernel-allocated dummy BO. This alternative is preferable to the old method of handling sparseness in the UMD, because it relied on the creation of a buffer object to the same end, despite the fact Vulkan sparse resources don't need to be backed by a driver BO. The choice of backing sparsely-bound regions with a Panthor BO was made so as to profit from the existing shrinker reclaim code. That way no special treatment must be given to the dummy sparse BOs when reclaiming memory, as would be the case if we had chosen a raw kernel page implementation. A new dummy BO is allocated per open file context, because even though the Vulkan spec mandates that writes into sparsely bound regions must be discarded, our implementation is still a workaround over the fact Mali CSF GPUs cannot support this behaviour on the hardware level, so writes still make it into the backing BO. If we had a global one, then it could be a venue for information leaks between file contexts, which should never happen in DRM. As a side note, care was put to adjust dummy BO offsets for sparse mappings so that all addresses in the new VA are mapped aligned against it. Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> Reviewed-by: Steven Price <steven.price@arm.com> Link: https://patch.msgid.link/20260522185206.2798288-6-adrian.larumbe@collabora.com Signed-off-by: Steven Price <steven.price@arm.com> |
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|
Adrián Larumbe
|
8e54aac5af |
drm/panthor: Delete spurious whitespace from uAPI header
There's no extra blank line after the last member of any other uAPI structures, so delete it. Reviewed-by: Steven Price <steven.price@arm.com> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com> Link: https://patch.msgid.link/20260522185206.2798288-4-adrian.larumbe@collabora.com Signed-off-by: Steven Price <steven.price@arm.com> |
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|
Adrián Larumbe
|
6c1427fd03 |
drm/panthor: Expose GPU page sizes to UM
In future commits that will implement repeated mappings, only repeat values multiple of GPU page sizes will be tolerated. That means these values must be made known to UM. Do it through a queriable GPU info value. Reviewed-by: Steven Price <steven.price@arm.com> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com> Link: https://patch.msgid.link/20260522185206.2798288-2-adrian.larumbe@collabora.com Signed-off-by: Steven Price <steven.price@arm.com> |
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|
Sven Eckelmann
|
f3ff3eb0d6
|
batman-adv: uapi: keep kernel-doc in struct member order
The order of the members of struct batadv_coded_packet and struct batadv_unicast_tvlv_packet didn't match the kernel doc. This is the case for all other structures and should also be done the same way for these two. Signed-off-by: Sven Eckelmann <sven@narfation.org> |
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|
Jakub Kicinski
|
8d72997dab |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-7.1-rc7). Silent conflicts: net/wireless/nl80211.c |
||
|
Antony Antony
|
a9d155ea9b |
xfrm: add XFRM_MSG_MIGRATE_STATE for single SA migration
Add a new netlink method to migrate a single xfrm_state. Unlike the existing migration mechanism (SA + policy), this supports migrating only the SA and allows changing the reqid. The SA is looked up via xfrm_usersa_id, which uniquely identifies it, so old_saddr is not needed. old_daddr is carried in xfrm_usersa_id.daddr. The reqid is invariant in the old migration. Signed-off-by: Antony Antony <antony.antony@secunet.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> |
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|
Kuniyuki Iwashima
|
afabbb56a7 |
geneve: Introduce IFLA_GENEVE_LOCAL and IFLA_GENEVE_LOCAL6.
By default, a GENEVE device bind()s its underlying UDP socket(s) to
the IPv4 or IPv6 wildcard address because there is no way to specify
a specific local IP address to bind() to.
This prevents deploying multiple GENEVE devices on a multi-homed host
where each device should be isolated and bound to a different local IP
address on the same UDP port.
Let's introduce new options, IFLA_GENEVE_LOCAL and IFLA_GENEVE_LOCAL6,
to allow specifying a local IPv4/IPv6 address for the backend UDP
socket.
By default, when collect metadata mode (IFLA_GENEVE_COLLECT_METADATA)
is enabled, both IPv4 and IPv6 sockets are created. However, if a
source address is specified via the new attributes, only a single
socket corresponding to that specific address family is created.
Accordingly, geneve_find_sock() and geneve_find_dev() are updated to
take the source address into account, ensuring that multiple devices
and sockets configured with different source addresses can coexist
without conflict.
In addition, the source address is validated in geneve_xmit_skb()
and geneve6_xmit_skb(), so the BPF prog must set it in bpf_tunnel_key.
With this change, multiple GENEVE devices can be successfully created
and bound to their respective local IP addresses:
(*) "local" is the keyword for IFLA_GENEVE_LOCAL / IFLA_GENEVE_LOCAL6
# for i in $(seq 1 2);
do
ip link add geneve4_${i} type geneve local 192.168.0.${i} external
ip addr add 192.168.0.${i}/24 dev geneve4_${i}
ip link set geneve4_${i} up
ip link add geneve6_${i} type geneve local 2001:9292::${i} external
ip addr add 2001:9292::${i}/64 dev geneve6_${i} nodad
ip link set geneve6_${i} up
done
# ip -d l | grep geneve
9: geneve4_1: <BROADCAST,MULTICAST,UP,LOWER_UP> ...
geneve external id 0 local 192.168.0.1 ...
10: geneve6_1: <BROADCAST,MULTICAST,UP,LOWER_UP> ...
geneve external id 0 local 2001:9292::1 ...
11: geneve4_2: <BROADCAST,MULTICAST,UP,LOWER_UP> ...
geneve external id 0 local 192.168.0.2 ...
12: geneve6_2: <BROADCAST,MULTICAST,UP,LOWER_UP> ...
geneve external id 0 local 2001:9292::2 ...
# ss -ua | grep geneve
UNCONN 0 0 192.168.0.2:geneve 0.0.0.0:*
UNCONN 0 0 192.168.0.1:geneve 0.0.0.0:*
UNCONN 0 0 [2001:9292::2]:geneve *:*
UNCONN 0 0 [2001:9292::1]:geneve *:*
Note that even if the local address is explicitly configured with
the wildcard address, kernel does not dump it except for devices with
IFLA_GENEVE_COLLECT_METADATA. This is consistent with the behaviour
of is_tnl_info_zero(), which treats the wildcard remote address as not
configured.
## ynl example.
# ./tools/net/ynl/pyynl/cli.py \
--spec ./Documentation/netlink/specs/rt-link.yaml \
--do newlink --create \
--json '{"ifname": "geneve0",
"linkinfo": {"kind":"geneve",
"data": {"local": "0.0.0.0",
"collect-metadata": true}}}'
# ./tools/net/ynl/pyynl/cli.py \
--spec ./Documentation/netlink/specs/rt-link.yaml \
--do getlink \
--json '{"ifname": "geneve0"}' --output-json | \
jq .linkinfo.data.local
"0.0.0.0"
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20260602190436.139591-6-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
||
|
Dave Airlie
|
44c460d2cc |
Merge tag 'drm-msm-next-2026-05-30' of https://gitlab.freedesktop.org/drm/msm into drm-next
Changes for v7.2 Core: - Fixed documentation for msm_gem_shrinker functions - IFPC related enablement/fixes for gen8 - PERFCNTR_CONFIG ioctl support GPU - Reworked handling of UBWC configuration - a810 suppport MDSS: - Added Milos platform support - Reworked handling of UBWC configuration DisplayPort: - Reworked HPD handling, preparing for the MST support DPU: - Added Milos platform support - Reworked handling of UBWC configuration DSI: - Added Milos platform support Signed-off-by: Dave Airlie <airlied@redhat.com> From: Rob Clark <rob.clark@oss.qualcomm.com> Link: https://patch.msgid.link/CACSVV00DXZcvFH2-C3fouve5DGs0DGa-vvsJPuaRmUZZVNKOfg@mail.gmail.com |
||
|
Thomas Gleixner
|
3ca9595d9f |
futex: Add support for unlocking robust futexes
Unlocking robust non-PI futexes happens in user space with the following sequence: 1) robust_list_set_op_pending(mutex); 2) robust_list_remove(mutex); lval = 0; 3) lval = atomic_xchg(lock, lval); 4) if (lval & WAITERS) 5) sys_futex(WAKE,....); 6) robust_list_clear_op_pending(); That opens a window between #3 and #6 where the mutex could be acquired by some other task which observes that it is the last user and: A) unmaps the mutex memory B) maps a different file, which ends up covering the same address When the original task exits before reaching #6 then the kernel robust list handling observes the pending op entry and tries to fix up user space. In case that the newly mapped data contains the TID of the exiting thread at the address of the mutex/futex the kernel will set the owner died bit in that memory and therefore corrupting unrelated data. PI futexes have a similar problem both for the non-contented user space unlock and the in kernel unlock: 1) robust_list_set_op_pending(mutex); 2) robust_list_remove(mutex); lval = gettid(); 3) if (!atomic_try_cmpxchg(lock, lval, 0)) 4) sys_futex(UNLOCK_PI,....); 5) robust_list_clear_op_pending(); Address the first part of the problem where the futexes have waiters and need to enter the kernel anyway. Add a new FUTEX_ROBUST_UNLOCK flag, which is valid for the sys_futex() FUTEX_UNLOCK_PI, FUTEX_WAKE, FUTEX_WAKE_BITSET operations. This deliberately omits FUTEX_WAKE_OP from this treatment as it's unclear whether this is needed and there is no usage of it in glibc either to investigate. For the futex2 syscall family this needs to be implemented with a new syscall. The sys_futex() case [ab]uses the @uaddr2 argument to hand the pointer to robust_list_head::list_pending_op into the kernel. This argument is only evaluated when the FUTEX_ROBUST_UNLOCK bit is set and is therefore backward compatible. This is an explicit argument to avoid the lookup of the robust list pointer and retrieving the pending op pointer from there. User space has the pointer already available so it can just put it into the @uaddr2 argument. Aside of that this allows the usage of multiple robust lists in the future without any changes to the internal functions as they just operate on the provided pointer. This requires a second flag FUTEX_ROBUST_LIST32 which indicates that the robust list pointer points to an u32 and not to an u64. This is required for two reasons: 1) sys_futex() has no compat variant 2) The gaming emulators use both both 64-bit and compat 32-bit robust lists in the same 64-bit application As a consequence 32-bit applications have to set this flag unconditionally so they can run on a 64-bit kernel in compat mode unmodified. 32-bit kernels return an error code when the flag is not set. 64-bit kernels will happily clear the full 64 bits if user space fails to set it. In case of FUTEX_UNLOCK_PI this clears the robust list pending op when the unlock succeeded. In case of errors, the user space value is still locked by the caller and therefore the above cannot happen. In case of FUTEX_WAKE* this does the unlock of the futex in the kernel and clears the robust list pending op when the unlock was successful. If not, the user space value is still locked and user space has to deal with the returned error. That means that the unlocking of non-PI robust futexes has to use the same try_cmpxchg() unlock scheme as PI futexes. If the clearing of the pending list op fails (fault) then the kernel clears the registered robust list pointer if it matches to prevent that exit() will try to handle invalid data. That's a valid paranoid decision because the robust list head sits usually in the TLS and if the TLS is not longer accessible then the chance for fixing up the resulting mess is very close to zero. The problem of non-contended unlocks still exists and will be addressed separately. Signed-off-by: Thomas Gleixner <tglx@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: André Almeida <andrealmeid@igalia.com> Link: https://patch.msgid.link/20260602090535.670514505@kernel.org |
||
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Thomas Gleixner
|
1fd053d26f |
futex: Cleanup UAPI defines
Make the operand defines tabular for readability sake. Signed-off-by: Thomas Gleixner <tglx@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: André Almeida <andrealmeid@igalia.com> Link: https://patch.msgid.link/20260602090535.615600933@kernel.org |
||
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Thomas Gleixner
|
2cb5251d3d |
futex: Provide UABI defines for robust list entry modifiers
The marker for PI futexes in the robust list is a hardcoded 0x1 which lacks any sensible form of documentation. Provide proper defines for the bit and the mask and fix up the usage sites. Thereby convert the boolean pi argument into a modifier argument, which allows new modifier bits to be trivially added and conveyed. Signed-off-by: Thomas Gleixner <tglx@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Reviewed-by: André Almeida <andrealmeid@igalia.com> Link: https://patch.msgid.link/20260602090535.458758556@kernel.org |
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Linus Torvalds
|
ba3e43a9e6 |
soc: fixes for 7.1, part 2
Following the previous set of fixes, this addresses another significant
number of small issues found in firmware drivers (tee, optee, qcomtee,
qcom ice, exynos acpm) drivers through various tools. This is about
error handling, resource leaks, concurrency and a use-after-free bug.
The fixes for the Qualcomm ICE driver also introduce interface changes
in the UFS and MMC drivers using it.
Outside of firmware drivers, there are a few fixes across the tree:
- Minor driver code mistakes in the Atmel EBI memory controller,
the i.MX soc ID driver and socfpga boot logic
- A defconfig change to avoid a boot time regression on multiple
qualcomm boards
- Device tree fixes for qualcomm, at91 and gemini, addressing
mostly minor configuration mistakes
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Merge tag 'soc-fixes-7.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC fixes from Arnd Bergmann:
"Following the previous set of fixes, this addresses another
significant number of small issues found in firmware drivers (tee,
optee, qcomtee, qcom ice, exynos acpm) drivers through various tools.
This is about error handling, resource leaks, concurrency and a
use-after-free bug.
The fixes for the Qualcomm ICE driver also introduce interface changes
in the UFS and MMC drivers using it.
Outside of firmware drivers, there are a few fixes across the tree:
- Minor driver code mistakes in the Atmel EBI memory controller, the
i.MX soc ID driver and socfpga boot logic
- A defconfig change to avoid a boot time regression on multiple
qualcomm boards
- Device tree fixes for qualcomm, at91 and gemini, addressing mostly
minor configuration mistakes"
* tag 'soc-fixes-7.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (28 commits)
firmware: samsung: acpm: Fix infinite loop on sequence number exhaustion
firmware: samsung: acpm: Fix missing LKMM barriers in sequence allocator
firmware: samsung: acpm: Fix false timeouts and Use-After-Free in polling
ARM: dts: gemini: Fix partition offsets
ARM: socfpga: Fix OF node refcount leak in SMP setup
soc: qcom: ice: Fix the error code when 'qcom,ice' property is not found
arm64: dts: qcom: eliza: Add power-domain and iface clk for ice node
arm64: dts: qcom: milos: Add power-domain and iface clk for ice node
tee: qcomtee: add missing va_end in early return qcomtee_object_user_init()
tee: fix params_from_user() error path in tee_ioctl_supp_recv
tee: shm: fix shm leak in register_shm_helper()
tee: fix tee_ioctl_object_invoke_arg padding
arm64: defconfig: Enable PCI M.2 power sequencing driver
scsi: ufs: ufs-qcom: Remove NULL check from devm_of_qcom_ice_get()
mmc: sdhci-msm: Remove NULL check from devm_of_qcom_ice_get()
soc: qcom: ice: Return proper error codes from devm_of_qcom_ice_get() instead of NULL
soc: qcom: ice: Return -ENODEV if the ICE platform device is not found
soc: qcom: ice: Fix race between qcom_ice_probe() and of_qcom_ice_get()
ARM: dts: microchip: sam9x7: fix GMAC clock configuration
firmware: samsung: acpm: Fix mailbox channel leak on probe error
...
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||
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Jonathan Cameron
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c82228f76a |
Linux 7.1-rc6
-----BEGIN PGP SIGNATURE----- iQFSBAABCgA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAmocssAeHHRvcnZhbGRz QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiGsvMIAIYkDW1HujnkP3/G SzQuQozH30O8Fpxdo+axRG6DweP2DTW1lD35YPJJsVto0G2BJZVjzsrx8RSgV6uz DDY+Y0x0/VknMZ4JDrDoWRIyHaVV6p3+NcSHhwrxctQsa8UdEf4aXGaTf91nIBSB GCX5R2YxxuQSTMZ19F/e+UShnRC5OO0FbCB5xhSnUJX3+eoRe0mcGAQB4DBUKxsx BZ5DMOmoiEyPFJbdmy11X0epgJ32qgL7HPYLEo44Vcfy/Ot9lrL9b4vKbG+b3N1P YAZccYH/dlpUuk7piR37H87Ntgz/SZcYbJlx2iAWoNk4tMmfRUO16igar8yFHjSt FLN2Zx4= =ufVr -----END PGP SIGNATURE----- Merge tag 'v7.1-rc6' into work Linux 7.1-rc6 |
||
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Vicki Pfau
|
c6f1363abb |
Input: userio - allow setting other id values
Previously, only the type value was settable. The proto value is used internally for choosing the right drivers, so we should expose it. The other values make sense to expose as well. Signed-off-by: Vicki Pfau <vi@endrift.com> Link: https://patch.msgid.link/20260522015040.3953472-2-vi@endrift.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> |
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Vicki Pfau
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37340ac2c7 |
Input: userio - update maintainer name
She's been committing under the name Lyude Paul for a while Signed-off-by: Vicki Pfau <vi@endrift.com> Link: https://patch.msgid.link/20260522015040.3953472-1-vi@endrift.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> |
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Rob Herring (Arm)
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17cdb54644 |
accel: ethosu: Add performance counter support
The Arm Ethos-U NPUs have a PMU with performance counters. The PMU h/w supports up to 4 (U65) or 8 (U85) counters which can be programmed for different events. There is also a dedicated cycle counter. The ABI and implementation are copied from the V3D driver. The main difference in the ABI is there is no query API for the event list. The events differ between the U65 and U85, so the events lists are maintained in userspace along with other differences between the U65 and U85. The cycle counter is always enabled when the PMU is enabled. When the user requests N events, reading the counters will return the N events plus the cycle counter. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Tomeu Vizoso <tomeu@tomeuvizoso.net> Reviewed-by: Maíra Canal <mcanal@igalia.com> Link: https://patch.msgid.link/20260601173814.250071-1-tomeu@tomeuvizoso.net --- v2: - Use XArray instead of idr - Rework locking to use per device spinlock to protect modifying active perfmon. Based on pending V3D changes: https://lore.kernel.org/all/20260508-v3d-perfmon-lifetime-v1-1-f5b5642c085f@igalia.com/ - Add missing perfmon puts in ethosu_ioctl_perfmon_set_global() and ethosu_ioctl_perfmon_get_values() error paths. - Fix reading number of counters on U85. - Add defines NPU_REG_PMCCNTR_CFG v3: - Add explicit padding to drm_ethosu_perfmon_destroy - Fix SPDX license expression - Fix comment typos - Convert perfmon lock from spinlock to mutex - Simplify switch_perfmon condition check - Remove unused ethosu_perfmon_init - Add lockdep_assert_held to ethosu_perfmon_stop_locked v4: - Use drmm_mutex_init() for perfmon lock - Add lockdep_assert_held() to ethosu_perfmon_start() - Fix a few style issues reported by Maíra |
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Greg Kroah-Hartman
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b586d69177 |
Linux 7.1-rc6
-----BEGIN PGP SIGNATURE----- iQFSBAABCgA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAmocssAeHHRvcnZhbGRz QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiGsvMIAIYkDW1HujnkP3/G SzQuQozH30O8Fpxdo+axRG6DweP2DTW1lD35YPJJsVto0G2BJZVjzsrx8RSgV6uz DDY+Y0x0/VknMZ4JDrDoWRIyHaVV6p3+NcSHhwrxctQsa8UdEf4aXGaTf91nIBSB GCX5R2YxxuQSTMZ19F/e+UShnRC5OO0FbCB5xhSnUJX3+eoRe0mcGAQB4DBUKxsx BZ5DMOmoiEyPFJbdmy11X0epgJ32qgL7HPYLEo44Vcfy/Ot9lrL9b4vKbG+b3N1P YAZccYH/dlpUuk7piR37H87Ntgz/SZcYbJlx2iAWoNk4tMmfRUO16igar8yFHjSt FLN2Zx4= =ufVr -----END PGP SIGNATURE----- Merge tag 'v7.1-rc6' into tty-next We need the tty/serial fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Jeff Layton
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70b7e3526c |
nfsd: add NFSD_CMD_CACHE_FLUSH netlink command
Add a new NFSD_CMD_CACHE_FLUSH generic netlink command that allows userspace to flush the nfsd export caches (svc_export and expkey) without writing to /proc/net/rpc/*/flush. An optional NFSD_A_CACHE_FLUSH_MASK u32 attribute selects which caches to flush (bit 1 = svc_export, bit 2 = expkey). If the attribute is omitted, all nfsd caches are flushed. This is used by exportfs to replace its /proc-based cache_flush() with a netlink equivalent, with /proc fallback for older kernels. Signed-off-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.com> |
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Jeff Layton
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565ee23ea2 |
sunrpc: add SUNRPC_CMD_CACHE_FLUSH netlink command
Add a new SUNRPC_CMD_CACHE_FLUSH generic netlink command that allows userspace to flush the sunrpc auth caches (ip_map and unix_gid) without writing to /proc/net/rpc/*/flush. An optional SUNRPC_A_CACHE_FLUSH_MASK u32 attribute selects which caches to flush (bit 1 = ip_map, bit 2 = unix_gid). If the attribute is omitted, all sunrpc caches are flushed. This is used by exportfs to replace its /proc-based cache_flush() with a netlink equivalent, with /proc fallback for older kernels. Signed-off-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.com> |
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Jeff Layton
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01c2305795 |
nfsd: add netlink upcall for the nfsd.fh cache
Add netlink-based cache upcall support for the expkey (nfsd.fh) cache, following the same pattern as the existing svc_export netlink support. Add expkey to the cache-type enum, a new expkey attribute-set with client, fsidtype, fsid, negative, expiry, and path fields, and the expkey-get-reqs / expkey-set-reqs operations to the nfsd YAML spec and generated headers. Implement nfsd_nl_expkey_get_reqs_dumpit() which snapshots pending expkey cache requests and sends each entry's seqno, client name, fsidtype, and fsid over netlink. Implement nfsd_nl_expkey_set_reqs_doit() which parses expkey cache responses from userspace (client, fsidtype, fsid, expiry, and path or negative flag) and updates the cache via svc_expkey_lookup() / svc_expkey_update(). Wire up the expkey_notify() callback in svc_expkey_cache_template so cache misses trigger NFSD_CMD_CACHE_NOTIFY multicast events with NFSD_CACHE_TYPE_EXPKEY. Signed-off-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.com> |
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Jeff Layton
|
912fc994b9 |
nfsd: add netlink upcall for the svc_export cache
Add netlink-based cache upcall support for the svc_export (nfsd.export) cache to Documentation/netlink/specs/nfsd.yaml and regenerate the resulting files. Implement nfsd_cache_notify() which sends a NFSD_CMD_CACHE_NOTIFY multicast event to the "exportd" group, carrying the cache type so userspace knows which cache has pending requests. Implement nfsd_nl_svc_export_get_reqs_dumpit() which snapshots pending svc_export cache requests and sends each entry's seqno, client name, and path over netlink. Implement nfsd_nl_svc_export_set_reqs_doit() which parses svc_export cache responses from userspace (client, path, expiry, flags, anon uid/gid, fslocations, uuid, secinfo, xprtsec, fsid, or negative flag) and updates the cache via svc_export_lookup() / svc_export_update(). Wire up the svc_export_notify() callback in svc_export_cache_template so cache misses trigger NFSD_CMD_CACHE_NOTIFY multicast events with NFSD_CACHE_TYPE_SVC_EXPORT. Note that the export-flags and xprtsec-mode enums are organized to match their counterparts in include/uapi/linux/nfsd/export.h. The intent is that future export options will only be added to the netlink headers, which should eliminate the need to keep so much in sync. Signed-off-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.com> |
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Jeff Layton
|
0850e8603c |
sunrpc: add netlink upcall for the auth.unix.gid cache
Add netlink-based cache upcall support for the unix_gid (auth.unix.gid) cache, using the sunrpc generic netlink family. Add unix-gid attribute-set (seqno, uid, gids multi-attr, negative, expiry), unix-gid-reqs wrapper, and unix-gid-get-reqs / unix-gid-set-reqs operations to the sunrpc_cache YAML spec and generated headers. Implement sunrpc_nl_unix_gid_get_reqs_dumpit() which snapshots pending unix_gid cache requests and sends each entry's seqno and uid over netlink. Implement sunrpc_nl_unix_gid_set_reqs_doit() which parses unix_gid cache responses from userspace (uid, expiry, gids as u32 multi-attr or negative flag) and updates the cache via unix_gid_lookup() / sunrpc_cache_update(). Wire up unix_gid_notify() callback in unix_gid_cache_template so cache misses trigger SUNRPC_CMD_CACHE_NOTIFY multicast events with SUNRPC_CACHE_TYPE_UNIX_GID. Signed-off-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.com> |
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Jeff Layton
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712bdbb215 |
sunrpc: add netlink upcall for the auth.unix.ip cache
Add netlink-based cache upcall support for the ip_map (auth.unix.ip) cache, using the sunrpc generic netlink family. Add ip-map attribute-set (seqno, class, addr, domain, negative, expiry), ip-map-reqs wrapper, and ip-map-get-reqs / ip-map-set-reqs operations to the sunrpc_cache YAML spec and generated headers. Implement sunrpc_nl_ip_map_get_reqs_dumpit() which snapshots pending ip_map cache requests and sends each entry's seqno, class name, and IP address over netlink. Implement sunrpc_nl_ip_map_set_reqs_doit() which parses ip_map cache responses from userspace (class, addr, expiry, and domain name or negative flag) and updates the cache via __ip_map_lookup() / __ip_map_update(). Wire up ip_map_notify() callback in ip_map_cache_template so cache misses trigger SUNRPC_CMD_CACHE_NOTIFY multicast events with SUNRPC_CACHE_TYPE_IP_MAP. Signed-off-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.com> |
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Jeff Layton
|
af81cb247c |
sunrpc: add a generic netlink family for cache upcalls
The auth.unix.ip and auth.unix.gid caches live in the sunrpc module, so they cannot use the nfsd generic netlink family. Create a new "sunrpc" generic netlink family with its own "exportd" multicast group to support cache upcall notifications for sunrpc-resident caches. Define a YAML spec (sunrpc_cache.yaml) with a cache-type enum (ip_map, unix_gid), a cache-notify multicast event, and the corresponding uapi header. Implement sunrpc_cache_notify() in cache.c, which checks for listeners on the exportd multicast group, builds and sends a SUNRPC_CMD_CACHE_NOTIFY message with the cache-type attribute. Register/unregister the sunrpc_nl_family in init_sunrpc() and cleanup_sunrpc(). Signed-off-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.com> |
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Chuck Lever
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1cd8fad24a | Merge remote-tracking branches 'vfs/vfs-7.2.casefold', 'vfs/vfs-7.2.directory.delegations' and 'vfs/vfs-7.2.exportfs' into vfs-7.2-merge | ||
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Luca Boccassi
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4c08a9f38c |
liveupdate: add LIVEUPDATE_SESSION_GET_NAME ioctl
Userspace when requesting a session via the ioctl specifies a name and gets a FD, but then there is no ioctl to go back the other way and get the name given a LUO session FD. This is problematic especially when there is a userspace orchestrator that wants to check what FDs it is handling for clients without having to do manual string scraping of procfs, or without procfs at all. Add a ioctl to simply get the name from an FD. Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com> Reviewed-by: Pasha Tatashin <pasha.tatashin@soleen.com> Reviewed-by: Pratyush Yadav <pratyush@kernel.org> Link: https://lore.kernel.org/r/20260429212221.814107-4-luca.boccassi@gmail.com Signed-off-by: Pasha Tatashin <pasha.tatashin@soleen.com> Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org> |
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Liviu Stan
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622775dbc5 |
iio: core: Add IIO_COVERAGE channel type
Add a new channel type for sensors that report fractional coverage as a percentage. The sysfs attribute is in_coverageY_raw; after applying in_coverageY_scale the value is in percent. The first user is the ADT7604 leak detector, where the value represents the portion of the sensing element that is wetted. Signed-off-by: Liviu Stan <liviu.stan@analog.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org> |
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Jiri Pirko
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d7a40b5194 |
RDMA/uverbs: Expose CoCo DMA bounce requirement to userspace
In CoCo guests, guest memory is encrypted and untrusted (T=0) devices cannot DMA to it directly; such transfers must go through unencrypted bounce buffers. RDMA registers user pages for direct device access, bypassing the DMA layer and thus any bouncing, so registered memory does not work in this configuration. Until trusted (T=1) device detection is available, conservatively flag every device attached to a CoCo guest. Expose the condition to userspace as IB_UVERBS_DEVICE_CC_DMA_BOUNCE in device_cap_flags_ex so applications can avoid memory registration and fall back to copying buffers through send/recv. Link: https://patch.msgid.link/r/20260517141311.2409230-2-jiri@resnulli.us Signed-off-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> |
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Jiri Pirko
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93ce776a5b |
RDMA/mlx5: Use UMEM attribute for QP doorbell record
Add an optional mlx5 driver-namespace UMEM attribute on QP create so userspace can supply the doorbell record umem explicitly, symmetric to the CQ side. Resolve it inside mlx5_ib_db_map_user() and use it as a private DBR page when present; otherwise take the existing UHW share-or-pin path that preserves per-page DBR sharing across CQ/QP/SRQ in the same process. Add mlx5's first UVERBS_OBJECT_QP UAPI definition chain to attach the new attr. Link: https://patch.msgid.link/r/20260529134312.2836341-17-jiri@resnulli.us Signed-off-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> |
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Jiri Pirko
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d6ab1d2439 |
RDMA/mlx5: Use UMEM attribute for CQ doorbell record
Add an optional mlx5 driver-namespace UMEM attribute on CQ create so userspace can supply the doorbell record buffer explicitly. mlx5_ib_db_map_user() resolves the attribute (or falls back to the legacy UHW VA) into a struct ib_uverbs_buffer_desc and runs a unified lookup-then-pin: VA-typed descriptors share a per-page umem across CQ/QP/SRQ in the same process, FD-typed descriptors are pinned per call. Link: https://patch.msgid.link/r/20260529134312.2836341-16-jiri@resnulli.us Signed-off-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> |
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Jiri Pirko
|
cd767d980c |
RDMA/uverbs: Use UMEM attributes for QP creation
Apply the per-attribute UMEM model to the QP create method. Add three optional UMEM attributes that drivers pick from based on how their user ABI lays out the QP rings: - CREATE_QP_BUF_UMEM is a single user buffer that backs both the SQ and RQ of one QP. This is the common case where userspace pins one contiguous WQE region for the QP. - CREATE_QP_SQ_BUF_UMEM and CREATE_QP_RQ_BUF_UMEM are a pair of user buffers backing the SQ and RQ independently, used when the two rings live in physically distinct user allocations and must be pinned and addressed separately. Existing drivers would map their current umems as follows: - mlx5: BUF for normal QPs (one ucmd->buf_addr covers SQ+RQ); for IB_QPT_RAW_PACKET and IB_QP_CREATE_SOURCE_QPN, the RQ side comes from ucmd->buf_addr (RQ-sized) via RQ_BUF and the SQ from ucmd->sq_buf_addr via SQ_BUF. - mlx4: BUF, single ucmd.buf_addr covering SQ+RQ. - hns: BUF, single ucmd.buf_addr covering SQ + ext-SGE + RQ. - erdma: BUF, single ureq.qbuf_va sliced by the kernel into SQ at offset 0 and RQ at rq_offset. - bnxt_re: SQ_BUF (ureq->qpsva) + RQ_BUF (ureq->qprva, the RQ side is skipped when the QP uses an SRQ). - vmw_pvrdma: SQ_BUF (sbuf_addr) + RQ_BUF (rbuf_addr, the RQ side is skipped when the QP uses an SRQ). - qedr: SQ_BUF (sq_addr) + RQ_BUF (rq_addr) for whichever side the QP type actually has (no SQ for XRC_TGT/GSI; no RQ for XRC_INI/XRC_TGT/SRQ). - ionic: SQ_BUF (req.sq.addr) + RQ_BUF (req.rq.addr); both are skipped when the rings are placed in CMB instead of host memory. - mana: raw-packet QP uses SQ_BUF (sq_buf_addr) only; the RC path uses multiple per-queue user buffers (ucmd.queue_buf[]) that do not fit the SQ/RQ pair semantics of these attrs and stays on the legacy UHW path. - efa, irdma, hfi1, ocrdma, mthca, cxgb4 and usnic do not pin a QP WQE buffer via umem; none of these attributes apply. Link: https://patch.msgid.link/r/20260529134312.2836341-13-jiri@resnulli.us Signed-off-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> |
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Jiri Pirko
|
f6d2e53ca5 |
RDMA/uverbs: Add CQ buffer UMEM attribute and driver helpers
Add UVERBS_ATTR_CREATE_CQ_BUF_UMEM and two driver-facing wrappers, ib_umem_get_cq_buf() and ib_umem_get_cq_buf_or_va(), that pin a CQ buffer umem from it. The wrappers reuse the existing legacy CQ buffer-attr filler. Link: https://patch.msgid.link/r/20260529134312.2836341-7-jiri@resnulli.us Signed-off-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> |
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Jiri Pirko
|
3cfdff484d |
RDMA/core: Introduce generic buffer descriptor infrastructure for umem
Introduce a per-attribute UVERBS_ATTR_UMEM model so each uverbs command's umem set is explicit in its UAPI definition. Add driver-facing wrapper helpers that pin a umem on demand from an attribute or a VA addr; the driver owns the returned umem and releases it from its destroy/error paths. Link: https://patch.msgid.link/r/20260529134312.2836341-4-jiri@resnulli.us Signed-off-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> |
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Rob Clark
|
a7b378c949 |
drm/msm: Add PERFCNTR_CONFIG ioctl
Add new UABI and implementation of PERFCNTR_CONFIG ioctl. A bit more work is required to configure the pwrup_reglist for the GMU to restore SELect regs on exit of IFPC, before we can stop disabling IFPC while global counter collection. This will follow in a later commit, but will be transparent to userspace. Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com> Reviewed-by: Anna Maniscalco <anna.maniscalco2000@gmail.com> Reviewed-by: Akhil P Oommen <akhilpo@oss.qualcomm.com> Patchwork: https://patchwork.freedesktop.org/patch/728217/ Message-ID: <20260526145137.160554-14-robin.clark@oss.qualcomm.com> |
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Randy Dunlap
|
b397cc489a |
drm/tegra: tegra_drm.h: fix all uapi kernel-doc warnings
Add 2 struct member descriptions and convert #define macro constants comments to kernel-doc comments to eliminate all kernel-doc warnings: Warning: include/uapi/drm/tegra_drm.h:353 struct member 'cmdbuf' not described in 'drm_tegra_reloc' Warning: include/uapi/drm/tegra_drm.h:353 struct member 'target' not described in 'drm_tegra_reloc' Warning: include/uapi/drm/tegra_drm.h:780 This comment starts with '/**', but isn't a kernel-doc comment. * Specify that bit 39 of the patched-in address should be set to switch Warning: include/uapi/drm/tegra_drm.h:832 This comment starts with '/**', but isn't a kernel-doc comment. * Execute `words` words of Host1x opcodes specified in the `gather_data_ptr` Warning: include/uapi/drm/tegra_drm.h:837 This comment starts with '/**', but isn't a kernel-doc comment. * Wait for a syncpoint to reach a value before continuing with further Warning: include/uapi/drm/tegra_drm.h:842 This comment starts with '/**', but isn't a kernel-doc comment. * Wait for a syncpoint to reach a value before continuing with further Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com> Link: https://patch.msgid.link/20260427184454.693794-1-rdunlap@infradead.org |
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Arnd Bergmann
|
9193ffe5b4 |
TEE fixes for v7.1
Fixing: - params_from_user() cleanup in error path in tee_ioctl_supp_recv() - possible tee_shm leak in error path in register_shm_helper() - padding in struct tee_ioctl_object_invoke_arg -----BEGIN PGP SIGNATURE----- iQJOBAABCgA4FiEE0qerISgy2SKkqO79Wr/6JGat8H4FAmoNXF4aHGplbnMud2lr bGFuZGVyQGxpbmFyby5vcmcACgkQWr/6JGat8H7G0xAA4+Rytz+NnQJk/qh+6crH so6W3QtQPOlPcXRbiUO/eYQLiuhxP3OHvy1v+FGk9/InRDIL2WEPaglKzeHw1k7Z dtHc3fte9+rMpXQi0VpWle+iIDmbcSZo6i0LEq4K6K0zR+uHLvDiye31SN7Xh9y+ M2kmu3EYEuCnYcLScJASWXFh8zkBuE3ouxlRd237qy1ZaqirPSIBLfukES2/nKnd q16nSAb55oASCFE1tAJ/7p7ADIogYwY8zdIC9wPidcmCLC43cBpKcGMVukXY1TM/ H8qjY+eNQXu5wZbs08DXAFZcqfoPykUKtN66gaKj+eHfEuu/y67Fs1RV/L1fY4ER 82S69KGUY+uh9xBLV4WIAmF79VZLtFX9y55DyfzPIC7PLlu0/ov2+1pWcy5h/5Xl W2gQOTap0MnhTBPOzBN2kFArkC/lmgoufUGifIKGbxYw06ZaORUnIAUOorcItoq4 Sl1Yl48hQ5Wr1J6N++sa75O7cvoNX3zgLSEfJkZv8IvebZH2U8coTJBdmr1lD7pI 6W/QwQ4ZbNN2fhmQ1262coDddMEUFbDe60bKWDfnO9gCCvYtRSbWxX5j2ksclRw2 gr6t9giURM9H2IYMEDA5UaXH7WRCmKU1Mu3SqdsklHCwoXA6ie3gg1xRn3gY1Bw+ mGG1LrAIVXbVuDvoLEa2PE8= =iyqH -----END PGP SIGNATURE----- gpgsig -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEo6/YBQwIrVS28WGKmmx57+YAGNkFAmoYQSwACgkQmmx57+YA GNltaw/8CTK3hikzjTaIbJBDsXE46oNAn244rAYo8HXMM64sqrPHyEBIKPfdRpEp /jshVeNAfT6nA7qnt+PLPfB3w45L0Ugl29DmSIc2Drsb7Mzs0TCVfiW4tkBITbd5 9/n7FKNnIMvtEpUhZRSvgGZiJ98dC16R5aTmnCgXNSild6VLpu3sCrResX15Mkj5 SbKjOZmv7NziUEWAROrnznYZV+VIQiXLbYV5a66NxgSUptud55dcJWoyXXqTczzj +mA7RVPErcbNOCtBRzLmPVN0J9bIFQg8HGqacEhwQtslixkz2zcriNLQN/KjtXtF TDs3vy0LFb8TCYbe9P8QJHAuoKSVhCuifLy0v28Z7ozf5cIZ4nEPuvjomC8Mcr6e MjArB4Zb8QGk9MVAKg0Pt6a1tkA+5Ij1sxHJks4n3hGw0O1WJAH65VI2q53FoHPq 7isFbT5DS21OuoxUSZF+i+VacDsD5HEOfQVuoD3LNhKyRAlhaLA2ytf37ZOQtTAQ RR8ccjyssZbCqXMvyjcOiIgNwAmRQ/KkDNzWLNTdCPp7lZ6OzNfWKG5ljx9QG4zV qzcE8GgUjZnyuy+C8yN15vGhvXW6WSYfSQBzN7lpJI0Crq9IoUTch2aKjxBiXlhD MpXD/8FVueRXtLRj7h8nmVGSFP82lR15EPfYImpSe8WXVIs7Tyw= =CNbC -----END PGP SIGNATURE----- Merge tag 'tee-fixes-for-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/jenswi/linux-tee into arm/fixes TEE fixes for v7.1 Fixing: - params_from_user() cleanup in error path in tee_ioctl_supp_recv() - possible tee_shm leak in error path in register_shm_helper() - padding in struct tee_ioctl_object_invoke_arg * tag 'tee-fixes-for-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/jenswi/linux-tee: tee: fix params_from_user() error path in tee_ioctl_supp_recv tee: shm: fix shm leak in register_shm_helper() tee: fix tee_ioctl_object_invoke_arg padding Signed-off-by: Arnd Bergmann <arnd@arndb.de> |
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Simona Vetter
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bed29492d4 |
Linux 7.1-rc5
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Merge v7.1-rc5 into drm-next
Boris Brezillion needs the gem lru fixes
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Nicolin Chen
|
91561e1dc9 |
PCI: Add pci_ats_required() for CXL.cache capable devices
Controlled by IOMMU drivers, ATS can be enabled "on demand", when a given PASID on a device is attached to an I/O page table. This is working, even when a device has no translation on its RID (i.e., RID is IOMMU bypassed). However, certain PCIe devices require non-PASID ATS on their RID even when the RID is IOMMU bypassed. Call this "ATS always on" in IOMMU term. For example, CXL spec r4.0 notes in sec 3.2.5.13 Memory Type on CXL.cache: "To source requests on CXL.cache, devices need to get the Host Physical Address (HPA) from the Host by means of an ATS request on CXL.io." In other words, the CXL.cache capability requires ATS; otherwise, it can't access host physical memory. Introduce a new pci_ats_required() helper for the IOMMU driver to scan a PCI device and shift ATS policies between "on demand" and "always on". Add the support for CXL.cache devices first. Pre-CXL devices will be added in quirks.c file. Note that pci_ats_required() validates against pci_ats_supported(), so we ensure that untrusted devices (e.g. external ports) will not be always on. This maintains the existing ATS security policy regarding potential side- channel attacks via ATS. Cc: linux-cxl@vger.kernel.org Suggested-by: Vikram Sethi <vsethi@nvidia.com> Suggested-by: Jason Gunthorpe <jgg@nvidia.com> Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Tested-by: Nirmoy Das <nirmoyd@nvidia.com> Acked-by: Nirmoy Das <nirmoyd@nvidia.com> Reviewed-by: Dave Jiang <dave.jiang@intel.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Nicolin Chen <nicolinc@nvidia.com> Reviewed-by: Yi Liu <yi.l.liu@intel.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> |
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Tim Bird
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0b13c6a618 |
llc: Add SPDX id lines to some llc source files
Most of the lls source files are missing SPDX-License-Identifier lines. Add appropriate IDs to these files, and remove other license info from the header. In once case, leave the existing id line and just remove the license reference text. Signed-off-by: Tim Bird <tim.bird@sony.com> Link: https://patch.msgid.link/20260522225508.24006-1-tim.bird@sony.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Clément Léger
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6935f63146 |
io_uring/zcrx: add shared-memory notification statistics
Add support for an optional stats struct embedded in the refill queue region, allowing userspace to monitor copy-fallback in real-time. Userspace queries the stats struct size and alignment via IO_URING_QUERY_ZCRX_NOTIF (notif_stats_size / notif_stats_alignment), then provides a stats_offset in zcrx_notification_desc pointing to a location within the refill queue region. The kernel updates the stats counters in-place on every copy-fallback event. Signed-off-by: Clément Léger <cleger@meta.com> [pavel: rename io_uring_zcrx_notif_stats] Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://patch.msgid.link/f6af5a21015efea4b733b9d77aba22c637788fe4.1779189667.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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Clément Léger
|
255180f703 |
io_uring/zcrx: notify user on frag copy fallback
Add a ZCRX_NOTIF_COPY notification type to signal userspace when a received fragment could not be delivered using zero-copy and was instead copied into a buffer. Signed-off-by: Clément Léger <cleger@meta.com> Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://patch.msgid.link/3d54bcd8bf10b3a1e88beb0cd39c40c3937bea4f.1779189667.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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Pavel Begunkov
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0719e10d82 |
io_uring/zcrx: notify user when out of buffers
There are currently no easy ways for the user to know if zcrx is out of buffers and page pool fails to allocate. Add uapi for zcrx to communicate it back. It's implemented as a separate CQE, which for now is posted to the creator ctx. To use it, on registration the user space needs to pass an instance of struct zcrx_notification_desc, which tells the kernel the user_data for resulting CQEs and which event types are expected / allowed. When an allowed event happens, zcrx will post a CQE containing the specified user_data, and lower bits of cqe->res will be set to the event mask. Before the kernel could post another notification of the given type, the user needs to acknowledge that it processed the previous one by issuing IORING_REGISTER_ZCRX_CTRL with ZCRX_CTRL_ARM_NOTIFICATION. The only notification type the patch implements is ZCRX_NOTIF_NO_BUFFERS, but we'll need more of them in the future. Co-developed-by: Vishwanath Seshagiri <vishs@meta.com> Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Vishwanath Seshagiri <vishs@meta.com> Link: https://patch.msgid.link/35cd307a03a43583838a2e151fc641c69abd786f.1779189667.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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Dave Airlie
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40149d887c |
Merge tag 'drm-misc-next-2026-05-21' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next
drm-misc-next for v7.2-rc1: UAPI Changes: - Add VIRTIO_GPU_F_BLOB_ALIGNMENT flag. Cross-subsystem Changes: - Add common TMDS character rate constants to video/hdmi and use those in bridge drivers. Core Changes: - Fix leak in drm_syncobj_find_fence. - Fix OOB reads related to DP-MST. - Create drm_get_bridge_by_endpoint and convert drivers to use it in preparation of hotplug. Driver Changes: - Assorted bugfixes and cleanups to accel/ethosu, imagination, virtio, rockchip. - Expandable device heap support to amdxdna, bridge/chipone-icn6211. - Add Surface Pro 12 panels. - Convert ite-it6211 to use drm hdmi audio helpers. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patch.msgid.link/f4034e3c-8290-49e1-9410-dc1f449265f4@linux.intel.com |
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Jason Gunthorpe
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e312f0ff9e |
Linux 7.1-rc5
-----BEGIN PGP SIGNATURE----- iQFSBAABCgA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAmoTZAYeHHRvcnZhbGRz QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiGKZ0H/A8Ti79DXqEl4M6V S1ZYfteuvyWCdygPfY7+CQsxS1EjfmeRXd0213n95jijUoXvAVe7HJ5FuroTltsF LYqH3CAedeEWMO1rIZjuDs5J1BzWAh7b0/QoanTlAjI1ZL8c3Btj/o//PoQfztiS HWlN/aCcsZTi9n0ewV9eQM9jdiuhBlpZujfDX90vYurxAB+3K2c1b0UN+Y4/zMXO 83zaDLMYhIh8cEaU52+23H9UpyfrT0B8n6YgqbU4ZBRIbgA1BC4gloT6B7OHFKfq PAfjAOBfpe43K8lLUyfbkfNohNblLOboiMmekdf+j2y4wqpCO64o6WigCrZtxtHe 9znkJpM= =H+I9 -----END PGP SIGNATURE----- Merge tag 'v7.1-rc5' into rdma.git for-next For dependencies in the following patches Resolve conflicts, use the goto labels from the rc tag. * tag 'v7.1-rc5': (1526 commits) Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> |
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Sriharsha Basavapatna
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47b730054f |
RDMA/bnxt_re: Enable app allocated QPs
The driver supports a new comp_mask: REQ_MASK_FIXED_QUE_ATTR. The application sets this comp_mask bit in the CREATE_QP ureq to indicate direct control of the QP. The driver goes through the required processing for app allocated QPs (previous patches). Only variable WQE mode is supported for these QPs. This patch removes an unused comp_mask: BNXT_RE_QP_REQ_MASK_VAR_WQE_SQ_SLOTS Link: https://patch.msgid.link/r/20260519150041.7251-10-sriharsha.basavapatna@broadcom.com Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com> Reviewed-by: Selvin Xavier <selvin.xavier@broadcom.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> |
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Sriharsha Basavapatna
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7e812673a9 |
RDMA/bnxt_re: Support doorbells for app allocated QPs
App allocated QPs can use a separate doorbell for each QP. This doorbell region can be passed through a new driver specific DBR_HANDLE attribute, during QP creation. When this attribute is set, associate the QP with the given doorbell region. While the QP holds a reference to the dbr, the dbr itself cannot be destroyed and is rejected with EBUSY error. Link: https://patch.msgid.link/r/20260519150041.7251-9-sriharsha.basavapatna@broadcom.com Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com> Reviewed-by: Selvin Xavier <selvin.xavier@broadcom.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> |
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Sriharsha Basavapatna
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9ce2a8c81c |
RDMA/bnxt_re: Update msn table size for app allocated QPs
For app allocated QPs, the driver shouldn't use slots/round-up logic to compute the msn table size. The application handles this logic and computes 'sq_npsn' and passes it to the driver using a new uapi parameter. Link: https://patch.msgid.link/r/20260519150041.7251-5-sriharsha.basavapatna@broadcom.com Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com> Reviewed-by: Selvin Xavier <selvin.xavier@broadcom.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> |
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Dorjoy Chowdhury
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8b82cacad9
|
openat2: new OPENAT2_REGULAR flag support
This flag indicates the path should be opened if it's a regular file. This is useful to write secure programs that want to avoid being tricked into opening device nodes with special semantics while thinking they operate on regular files. This is a requested feature from the uapi-group[1]. The previously introduced EFTYPE error code is returned when the path doesn't refer to a regular file. For example, if openat2 is called on path /dev/null with OPENAT2_REGULAR in the flag param, it will return -EFTYPE. When used in combination with O_CREAT, either the regular file is created, or if the path already exists, it is opened if it's a regular file. Otherwise, -EFTYPE is returned. When OPENAT2_REGULAR is combined with O_DIRECTORY, -EINVAL is returned as it doesn't make sense to open a path that is both a directory and a regular file. The UAPI bit lives in the upper 32 bits of open_how::flags (((__u64)1 << 32)) so that open(2) and openat(2) -- whose @flags argument is a C int -- cannot physically express it. This is a structural guarantee, not a runtime mask: the bit is unrepresentable in 32 bits. Because the rest of the VFS open path narrows to 32 bits in several places (op->open_flag, f->f_flags, the unsigned open_flag argument of i_op->atomic_open()), build_open_flags() translates OPENAT2_REGULAR into a kernel-internal lower-32-bit carrier __O_REGULAR (bit 4, unused as an O_* on every architecture) before the assignment to op->open_flag. __O_REGULAR then rides through the existing channels exactly like __FMODE_EXEC. do_dentry_open() strips it so it cannot leak back to userspace via fcntl(F_GETFL). Four BUILD_BUG_ON_MSG() invariants in build_open_flags() prevent any future bit collision or accidental low-32 redefinition: - VALID_OPEN_FLAGS fits in 32 bits. - OPENAT2_REGULAR lives in the upper 32 bits. - OPENAT2_REGULAR does not alias any open()/openat() flag. - __O_REGULAR does not alias any user-visible flag. [1]: https://uapi-group.org/kernel-features/#ability-to-only-open-regular-files Christian Brauner <brauner@kernel.org> says: Move OPENAT2_REGULAR to the upper 32 bits of open_how::flags with a kernel-internal __O_REGULAR carrier so that open(2)/openat(2) cannot encode the flag; add BUILD_BUG_ON_MSG() invariants and register __O_REGULAR in the fcntl_init() allocation-uniqueness BUILD_BUG_ON() (bit count 21 -> 22). Signed-off-by: Dorjoy Chowdhury <dorjoychy111@gmail.com> Link: https://patch.msgid.link/20260328172314.45807-2-dorjoychy111@gmail.com Reviewed-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: Aleksa Sarai <aleksa@amutable.com> Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org> |
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Wei Fang
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0850005c26 |
net: dsa: add NETC switch tag support
The NXP NETC switch tag is a proprietary header added to frames after the
source MAC address. The switch tag has 3 types, and each type has 1 ~ 4
subtypes, the details are as follows.
Forward NXP switch tag (Type=0): Represents forwarded frames.
- SubType = 0 - Normal frame processing.
To_Port NXP switch tag (Type=1): Represents frames that are to be sent
to a specific switch port.
- SubType = 0. No request to perform timestamping.
- SubType = 1. Request to perform one-step timestamping.
- SubType = 2. Request to perform two-step timestamping.
- SubType = 3. Request to perform both one-step timestamping and
two-step timestamping.
To_Host NXP switch tag (Type=2): Represents frames redirected or copied
to the switch management port.
- SubType = 0. Received frames redirected or copied to the switch
management port.
- SubType = 1. Received frames redirected or copied to the switch
management port with captured timestamp at the switch port where
the frame was received.
- SubType = 2. Transmit timestamp response (two-step timestamping).
In addition, the length of different type switch tag is different, the
minimum length is 6 bytes, the maximum length is 14 bytes. Currently,
Forward tag, SubType 0 of To_Port tag and Subtype 0 of To_Host tag are
supported. More tags will be supported in the future.
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Link: https://patch.msgid.link/20260518082506.1318236-10-wei.fang@nxp.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
|
||
|
Dorjoy Chowdhury
|
cf1b04aaef
|
openat2: introduce EFTYPE error code
Introduce a new error code EFTYPE for wrong file type operations. EFTYPE is already used in BSD systems like FreeBSD and macOS. This will be used by the upcoming OPENAT2_REGULAR flag support to return a specific error when a path doesn't refer to a regular file. Signed-off-by: Dorjoy Chowdhury <dorjoychy111@gmail.com> Link: https://patch.msgid.link/20260328172314.45807-2-dorjoychy111@gmail.com Reviewed-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: Aleksa Sarai <aleksa@amutable.com> Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org> |
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|
Jori Koolstra
|
31cf44efa6
|
vfs: add O_EMPTYPATH to openat(2)/openat2(2)
To get an operable version of an O_PATH file descriptor, it is possible
to use openat(fd, ".", O_DIRECTORY) for directories, but other files
currently require going through open("/proc/<pid>/fd/<nr>"), which
depends on a functioning procfs.
This patch adds the O_EMPTYPATH flag to openat(2)/openat2(2). If passed,
LOOKUP_EMPTY is set at path resolution time.
Note: This implies that you cannot rely anymore on disabling procfs from
being mounted (e.g. inside a container without procfs mounted and with
CAP_SYS_ADMIN dropped) to prevent O_PATH fds from being re-opened
read-write.
Signed-off-by: Jori Koolstra <jkoolstra@xs4all.nl>
Link: https://patch.msgid.link/20260424114611.1678641-2-jkoolstra@xs4all.nl
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
|
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|
Barnabás Pőcze
|
27caa94f4d |
media: rkisp1: Add support for CAC
The CAC block implements chromatic aberration correction. Expose it to userspace using the extensible parameters format. This was tested on the i.MX8MP platform, but based on available documentation it is also present in the RK3399 variant (V10). Thus presumably also in later versions, so no feature flag is introduced. Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Link: https://patch.msgid.link/20260511150957.581049-1-barnabas.pocze@ideasonboard.com Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org> |
||
|
Niklas Söderlund
|
c4c01c4fd4 |
media: uapi: rkisp: Correct name version enum
The name of the enum to hold the mapping of parameter buffer versions
have a typo in the name, correct it. While this is a uAPI header the
impact should be minimal as the enum is only used as a collection for
the one version number supported.
Fixes:
|
||
|
Sergio Lopez
|
6bd7e82e26 |
drm/virtio: add VIRTGPU_PARAM_BLOB_ALIGNMENT to params
Add VIRTGPU_PARAM_BLOB_ALIGNMENT as a param that can be read with VIRTGPU_GETPARAM by userspace applications running in the guest to obtain the host's page size and find out the right alignment to be used in shared memory allocations. Signed-off-by: Sergio Lopez <slp@redhat.com> Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com> Link: https://patch.msgid.link/20260428194450.518296-4-slp@redhat.com |
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|
Sergio Lopez
|
7b5121c337 |
drm/virtio: support VIRTIO_GPU_F_BLOB_ALIGNMENT
Support VIRTIO_GPU_F_BLOB_ALIGNMENT, a feature that indicates the device provides a valid blob_alignment field in its configuration, and that both RESOURCE_CREATE_BLOB and RESOURCE_MAP_BLOB requests must be aligned to that value. Signed-off-by: Sergio Lopez <slp@redhat.com> Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com> Link: https://patch.msgid.link/20260428194450.518296-2-slp@redhat.com |
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|
Arnd Bergmann
|
c15d7a2a11 |
tee: fix tee_ioctl_object_invoke_arg padding
The tee_ioctl_object_invoke_arg structure has padding on some
architectures but not on x86-32 and a few others:
include/linux/tee.h:474:32: error: padding struct to align 'params' [-Werror=padded]
I expect that all current users of this are on architectures that do
have implicit padding here (arm64, arm, x86, riscv), so make the padding
explicit in order to avoid surprises if this later gets used elsewhere.
Fixes:
|
||
|
Vadim Fedorenko
|
9bf93cb2e1 |
pps: bump PPS device count
Modern systems may have more than 16 PPS sources and current hard-coded limit breaks registration of some devices. Let's bump the limit to 256 in hope it will be enough in foreseen future. Signed-off-by: Vadim Fedorenko <vadim.fedorenko@linux.dev> Acked-by: Rodolfo Giometti <giometti@enneenne.com> Link: https://patch.msgid.link/20260515135028.2021318-1-vadim.fedorenko@linux.dev Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Hans Verkuil
|
79500c929d |
media: include/uapi/linux/cec*: clarify which msgs are CEC 2.0
Drop comments about CEC 2.0 from cec-funcs.h. In cec.h clearly comment messages that are CEC 2.0 specific as such. Also rename references to HDMI 2.0 to CEC 2.0. The <Request/Report Current Latency> messages were marked as CEC 2.0 only. That is wrong, these messages are explicitly allowed for any CEC version. Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org> Link: https://patch.msgid.link/098789ee233f777d5ad87a72f09a997373c98d25.1779115235.git.hverkuil+cisco@kernel.org Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Message-ID: <098789ee233f777d5ad87a72f09a997373c98d25.1779115235.git.hverkuil+cisco@kernel.org> |
||
|
Hans Verkuil
|
65efd1314d |
media: include/uapi/linux/cec*.h: add CEC LIP support
Add support for the new Latency Indication Protocol feature. This adds the opcodes and the wrapper functions. Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org> Link: https://patch.msgid.link/8dac7c99b7eab4fcc11d76d50dd08fb4448672f4.1779115235.git.hverkuil+cisco@kernel.org Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Message-ID: <8dac7c99b7eab4fcc11d76d50dd08fb4448672f4.1779115235.git.hverkuil+cisco@kernel.org> |
||
|
Arnd Bergmann
|
49ff66206e |
FSL SOC Changes for 7.1
Freescale QUICC Engine: - Add missing cleanup on device removal and switch to irq_domain_create_linear() in interrupt controller for IO Ports - Panic on ioremap() failure in qe_reset() Freescale Management Complex: - Move fsl-mc over to device MSI infrastructure - Wait for the MC firmware to complete its boot Freescale Hypervisor: - Fix header kernel-doc warnings -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTH/wu6mIr0ZW+Vui/dkHAmvKvPUwUCad8lggAKCRDdkHAmvKvP U3/HAQCNklj/7KSYApkif9zHTi3ITtY5YkunkfTVamnx+Ti6PgD+KE1yOnXtaumM gbrwGcjenjhz+nuFuRRWJ8kN/SQeAwI= =kIgf -----END PGP SIGNATURE----- gpgsig -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEo6/YBQwIrVS28WGKmmx57+YAGNkFAmoLKU8ACgkQmmx57+YA GNm42A//bz/gpNKsJYtcA2NNVCjC5ysFBu8e7KlHAO4zJ1OJZkRglDB6Rb3E6+oR oSd4G4erumrcpGoF7szkgZDKmXul6tUi2Gov2jkrG3cNUG24KA5wUj59bq9G2Bsb b8VZa+J+YzBEcJUAikWJuaMKU0KeH/N15284qREoIoXQFk+A5YM21N4PR8vwS6bC i5rdAsmRXJwtvDWW96opUyfvVUEe+1fqniOGhRtFDPMN3wAmItd9/uFYsKxg5L6r 2cNw0q9zdHG6RPNN6f3S48BtDmzGCGLwo+O8v0P1RDuC6bU7UVXhmKVRyUMmqP9Z fOTFXqV22V6iseVzIb3PCw4jQ+YVf1ROkJBNKGgDvpQ6Q3MKe8ONbR3DF8vjNzcL vOmPIVuCQalxvdaKRg508p4Vj4dyKQz9EdGQ7oHPbqANycu/Jdlfoumg3o2IPmf6 7dI9dYeG4/egG522//ynduHPvwJU9U4oXfB64dlDv4cTjLDsabFajfLTdy7ElmXH gSDaBCc9JmZ6/ESNYmrsuXBSWeuxuH9ZB+9Ztfymt/nqnqi3kl0CPqsD1NNACneB JSczPDhl8Cu9yGYMc4kTcZNRE7B69HAn9MGbe7Jv5yOfWHo0mRoBXVz7UdakY9HU GhrdpmqCbiY6TjeTjLVXmVvJQZn+stFuP4ce5FmxxU+xTZ8Yofo= =2Tv8 -----END PGP SIGNATURE----- Merge tag 'soc_fsl-7.1-2' of https://git.kernel.org/pub/scm/linux/kernel/git/chleroy/linux into soc/drivers FSL SOC Changes for 7.1 Freescale QUICC Engine: - Add missing cleanup on device removal and switch to irq_domain_create_linear() in interrupt controller for IO Ports - Panic on ioremap() failure in qe_reset() Freescale Management Complex: - Move fsl-mc over to device MSI infrastructure - Wait for the MC firmware to complete its boot Freescale Hypervisor: - Fix header kernel-doc warnings * tag 'soc_fsl-7.1-2' of https://git.kernel.org/pub/scm/linux/kernel/git/chleroy/linux: bus: fsl-mc: wait for the MC firmware to complete its boot soc: fsl: qe: panic on ioremap() failure in qe_reset() soc: fsl: qe_ports_ic: switch to irq_domain_create_linear() soc: fsl: qe_ports_ic: Add missing cleanup on device removal virt: fsl_hypervisor: fix header kernel-doc warnings platform-msi: Remove stale comment fsl-mc: Remove legacy MSI implementation fsl-mc: Switch over to per-device platform MSI irqchip/gic-v3-its: Add fsl_mc device plumbing to the msi-parent handling fsl-mc: Add minimal infrastructure to use platform MSI fsl-mc: Remove MSI domain propagation to sub-devices Signed-off-by: Arnd Bergmann <arnd@arndb.de> |
||
|
Chuck Lever
|
45e57cfb7b
|
fs: Clarify FS_CASEFOLD_FL semantics in UAPI header
The existing one-liner "Folder is case insensitive" leaves the impression that FS_CASEFOLD_FL is reserved for directories. That impression is wrong: filesystems that derive case-insensitivity from mount or volume state report the bit on non-directory inodes via i_op->fileattr_get, so userspace inspecting FS_IOC_GETFLAGS can see it on any inode type. Replace the one-liner with a block comment that names directories as the typical case, records that non-directory inodes may also report the bit, and notes FS_XFLAG_CASEFOLD as the read-only companion exposed through FS_IOC_FSGETXATTR. Reported-by: sashiko-bot <sashiko-bot@kernel.org> Closes: https://sashiko.dev/#/patchset/20260507-case-sensitivity-v14-0-e62cc8200435@oracle.com?part=3 Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Link: https://patch.msgid.link/20260515153515.362266-5-cel@kernel.org Signed-off-by: Christian Brauner <brauner@kernel.org> |
||
|
Dave Airlie
|
15342d4aeb |
drm-misc-next for v7.2-rc1:
UAPI Changes: - Update fourcc descriptions of BG(R) floating formats. - Add deferred mapping support to virtio. Cross-subsystem Changes: - Update lontium lt9211 bindings. Core Changes: - Bugfixes and cleanups to pagemap, dp/mst. - Add lockdep annotations to gpu buddy manager. - Updates to drm/dp for PR + VRR. - Improve documentation's table of contents. - Bump fpfn and lpfn in ttm to 64-bits. Driver Changes: - Assorted bugfixes, cleanups and updates to panthor, nouveau, qaic, hisilicon. - Add support for CMN N116BCN-EA1, CMN N140HCA-EEK, IVO M140NWFQ R5, IVO R140NWFW R0, BOE NT140*, BOE NV133FHM-N4F, AUO B140*, AUO B133HAN06.6 and AUO B116XTN02.3 eDP panels. - More implementation of AIE4 in amdxdna. - Update panels to use refcounts instead of devm_kzalloc to make drm_panel_init static. - Add support for the RCade Display Adapter to gud. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEuXvWqAysSYEJGuVH/lWMcqZwE8MFAmoFw/UACgkQ/lWMcqZw E8PPeRAAoITX1HZEs+FWz+YdJDVxSA+YI54z4uYXp3MsQsZWjytYBhp8vBlwTj64 UAmvz3NXt0taqrirRQoX2Ueoxuf2uUBn/uqlB7+UGeCMpDEkCbnMiRUPwgpf8N9l 7XPlSThMacVaWIHG1ktz22VN4antmwkf0eonByeGyxg+zGRXf5vSwRm0UFe/zLeI g/hljcMRRdZ7jrGQOyFj/MtkqpNm6JPLG0gk6u/vm3e4zs36VpFUDjPfznrmIALQ KVSDoYFBYFjE9TMrm2A7lioLkoU7agbByJtxcGAu/sEKBWNk+lQmQqCMFh8jsYjG YbQQQKbo8hhIHE7/Txj6ZVMk4MthQVadIQz2HXtERbMzAWbmoRLSTCCbhUcw4Oat oEJn90jI7PfiQqQ861YPniI83Il1j6k7vGA3d1rtZitpY7W3K+8jzXQAhVvJ4+1i E977NT9PF42kUHyePqVbrtGyFAYuGcRG0gTQQdqmB8NVQVulO/s2nU1StbuJ1gP3 6Z+9MMseQCVtDFAkkwVNMH9t1MB/rq7P3PjoYQehCJaFjecUFz7pWXSHbIZbSqWV QiQL7zr1I9KDras1Cq4SSZTS3YfGT5cR6fEcR3RdFXGkolMovw3/iiP2BtwP+ALR SDYefjejaSwUGrU0FLZ8ejFAil96zNM8zXcAU3d+gnXtysOh1lA= =UqYc -----END PGP SIGNATURE----- Merge tag 'drm-misc-next-2026-05-14' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next drm-misc-next for v7.2-rc1: UAPI Changes: - Update fourcc descriptions of BG(R) floating formats. - Add deferred mapping support to virtio. Cross-subsystem Changes: - Update lontium lt9211 bindings. Core Changes: - Bugfixes and cleanups to pagemap, dp/mst. - Add lockdep annotations to gpu buddy manager. - Updates to drm/dp for PR + VRR. - Improve documentation's table of contents. - Bump fpfn and lpfn in ttm to 64-bits. Driver Changes: - Assorted bugfixes, cleanups and updates to panthor, nouveau, qaic, hisilicon. - Add support for CMN N116BCN-EA1, CMN N140HCA-EEK, IVO M140NWFQ R5, IVO R140NWFW R0, BOE NT140*, BOE NV133FHM-N4F, AUO B140*, AUO B133HAN06.6 and AUO B116XTN02.3 eDP panels. - More implementation of AIE4 in amdxdna. - Update panels to use refcounts instead of devm_kzalloc to make drm_panel_init static. - Add support for the RCade Display Adapter to gud. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patch.msgid.link/98788814-e462-4950-bb2a-ea493c30d0c0@linux.intel.com |
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|
Jakub Kicinski
|
878492af7d |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-7.1-rc4). No conflicts, or adjacent changes. Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Shouvik Kar
|
899bea8248 |
io_uring/net: allow filtering on IORING_OP_CONNECT
This adds custom filtering for IORING_OP_CONNECT, where the target family is always exposed, and (for AF_INET / AF_INET6) port and address are exposed. port and v4_addr are in network byte order so filter authors can compare against on-wire constants. Skip population unless addr_len covers the populated fields, to avoid leaking stale io_async_msghdr data on short connects. Signed-off-by: Shouvik Kar <auxcorelabs@gmail.com> Link: https://patch.msgid.link/20260512110242.26219-1-auxcorelabs@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk> |
||
|
Danielle Ratson
|
0c32db0761 |
bridge: uapi: Add neigh_forward_grat netlink attributes
Add netlink attributes for controlling gratuitous ARP and unsolicited NA forwarding when neighbor suppression is enabled. Add IFLA_BRPORT_NEIGH_FORWARD_GRAT for port-level control and BRIDGE_VLANDB_ENTRY_NEIGH_FORWARD_GRAT for per-VLAN control. The new attributes provide independent control of gratuitous ARP and unsolicited NA packets. Operators can enable forwarding for those packets for fast mobility across VTEPs while keeping general neighbor suppression active. Reviewed-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Danielle Ratson <danieller@nvidia.com> Link: https://patch.msgid.link/20260511065936.4173106-2-danieller@nvidia.com Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
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|
Stephen Hemminger
|
a2f6ed7b48 |
net/sched: netem: add per-impairment extended statistics
Add 64-bit counters for each impairment netem applies (delay, loss, ECN marking, corruption, duplication, reordering) and for skb allocation failures during enqueue. Exposed through TCA_STATS_APP as struct tc_netem_xstats. Counters increment when an impairment is occurs, independent of later events that may mask its on-wire effect. Added allocation_errors (similar to sch_fq) to account for when impairment could not be applied due to memory pressure, etc. Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Link: https://patch.msgid.link/20260509171123.307549-6-stephen@networkplumber.org Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
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|
Dmitry Osipenko
|
4c26e16294 |
drm/virtio: Extend blob UAPI with deferred-mapping hinting
If userspace never maps GEM object, then BO wastes hostmem space because VirtIO-GPU driver maps VRAM BO at the BO's creating time. Make mappings on-demand by adding new RESOURCE_CREATE_BLOB IOCTL/UAPI hinting flag telling that host mapping should be deferred until first mapping is made when the flag is set by userspace. Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com> Reviewed-by: Rob Clark <robdclark@gmail.com> Link: https://patch.msgid.link/20260501000043.2483678-1-dmitry.osipenko@collabora.com |
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|
Christoph Böhmwalder
|
d5607f1faf |
drbd: clean up UAPI headers
Commit b1798910fc7f ("drbd: move UAPI headers to include/uapi/linux/")
broke compilation on targets without a hosted libc:
./usr/include/linux/drbd.h:18:10: fatal error: sys/types.h: No such
file or directory
The underlying issue is that there were some constructs left over in
those headers that don't belong in uapi.
Drop the __KERNEL__-gated split in drbd.h. The !__KERNEL__ branch pulls
in <sys/types.h>, <sys/wait.h> and <limits.h> for symbols that the
header does not actually reference; they were carried over from when
this lived in include/linux/.
Replace <asm/types.h> and the entire #ifdef block with the standard
UAPI combo <linux/types.h> + <asm/byteorder.h>, which provides
__u32/__u64/__s32 and __{LITTLE,BIG}_ENDIAN_BITFIELD in both kernel
and userspace contexts.
drbd_limits.h references some enum values and the DRBD_PROT_C define
from drbd.h, but does not include it. Add the missing include while
we're here.
Drop the unprefixed DEBUG_RANGE_CHECK from drbd_limits.h. It has no
in-kernel users and pollutes the userspace namespace.
Switch the drbd.h and drbd_limits.h include guards to the _UAPI_LINUX_*
convention already used by drbd_genl.h.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202605101346.V2wwJqv1-lkp@intel.com/
Fixes: b1798910fc7f ("drbd: move UAPI headers to include/uapi/linux/")
Signed-off-by: Christoph Böhmwalder <christoph.boehmwalder@linbit.com>
Link: https://patch.msgid.link/20260513110343.3170338-1-christoph.boehmwalder@linbit.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
|
||
|
Eric Dumazet
|
b588019e85 |
rtnetlink: add RTEXT_FILTER_NAME_ONLY support
iproute2 can spend considerable amount of time in ll_init_map() or ll_link_get() to dump verbose netdev attributes, contributing to RTNL pressure. Add RTEXT_FILTER_NAME_ONLY new flag so that rtnl_fill_ifinfo() limits its output to: - struct nlmsghdr - IFLA_IFNAME - IFLA_PROP_LIST (alternate names) We can later avoid using RTNL when RTEXT_FILTER_NAME_ONLY is requested, as none of these attributes need RTNL. Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com> Link: https://patch.msgid.link/20260511070244.971028-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |