Remove the long-standing comment in unix_release_sock() that described a
behavioral difference between Linux and BSD regarding when ECONNRESET is
sent to connected UNIX sockets upon closure.
As confirmed by testing on macOS (similar to BSD behavior), ECONNRESET
is only observed for SOCK_DGRAM sockets, not for SOCK_STREAM. Meanwhile,
Linux already returns ECONNRESET in cases where a socket is closed with
unread data or is not yet accept()ed. This means the previous comment no
longer accurately describes current behavior and is misleading.
Suggested-by: Kuniyuki Iwashima <kuniyu@google.com>
Signed-off-by: Sunday Adelodun <adelodunolaoluwa@yahoo.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20251021195906.20389-1-adelodunolaoluwa@yahoo.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This patch does not introduce any logical change, it just removes
duplicated code in airoha_regs.h.
Fix naming conventions in airoha_regs.h.
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20251022-airoha-regs-cosmetics-v2-1-e0425b3f2c2c@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
really started testing.
Current release - new code bugs:
- eth: mlx5e:
- psp: avoid 'accel' NULL pointer dereference
- skip PPHCR register query for FEC histogram if not supported
Previous releases - regressions:
- bonding: update the slave array for broadcast mode
- rtnetlink: re-allow deleting FDB entries in user namespace
- eth: dpaa2: fix the pointer passed to PTR_ALIGN on Tx path
Previous releases - always broken:
- can: drop skb on xmit if device is in listen-only mode
- gro: clear skb_shinfo(skb)->hwtstamps in napi_reuse_skb()
- eth: mlx5e
- RX, fix generating skb from non-linear xdp_buff if program
trims frags
- make devcom init failures non-fatal, fix races with IPSec
Misc:
- some documentation formatting "fixes"
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from can. Slim pickings, I'm guessing people haven't
really started testing.
Current release - new code bugs:
- eth: mlx5e:
- psp: avoid 'accel' NULL pointer dereference
- skip PPHCR register query for FEC histogram if not supported
Previous releases - regressions:
- bonding: update the slave array for broadcast mode
- rtnetlink: re-allow deleting FDB entries in user namespace
- eth: dpaa2: fix the pointer passed to PTR_ALIGN on Tx path
Previous releases - always broken:
- can: drop skb on xmit if device is in listen-only mode
- gro: clear skb_shinfo(skb)->hwtstamps in napi_reuse_skb()
- eth: mlx5e
- RX, fix generating skb from non-linear xdp_buff if program
trims frags
- make devcom init failures non-fatal, fix races with IPSec
Misc:
- some documentation formatting 'fixes'"
* tag 'net-6.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (47 commits)
net/mlx5: Fix IPsec cleanup over MPV device
net/mlx5: Refactor devcom to return NULL on failure
net/mlx5e: Skip PPHCR register query if not supported by the device
net/mlx5: Add PPHCR to PCAM supported registers mask
virtio-net: zero unused hash fields
net: phy: micrel: always set shared->phydev for LAN8814
vsock: fix lock inversion in vsock_assign_transport()
ovpn: use datagram_poll_queue for socket readiness in TCP
espintcp: use datagram_poll_queue for socket readiness
net: datagram: introduce datagram_poll_queue for custom receive queues
net: bonding: fix possible peer notify event loss or dup issue
net: hsr: prevent creation of HSR device with slaves from another netns
sctp: avoid NULL dereference when chunk data buffer is missing
ptp: ocp: Fix typo using index 1 instead of i in SMA initialization loop
net: ravb: Ensure memory write completes before ringing TX doorbell
net: ravb: Enforce descriptor type ordering
net: hibmcge: select FIXED_PHY
net: dlink: use dev_kfree_skb_any instead of dev_kfree_skb
Documentation: networking: ax25: update the mailing list info.
net: gro_cells: fix lock imbalance in gro_cells_receive()
...
- Fix a recent coding mistake causing __acpi_node_get_property_reference()
arguments to be put in an incorrect order (Sunil V L)
- Work around bogus -Wstringop-overread warning on LoongArch since
GCC 11 in ACPICA (Xi Ruoyao)
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Merge tag 'acpi-6.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"These fix a fallout of a recent ACPI properties management update and
work around a compiler bug in ACPICA:
- Fix a recent coding mistake causing __acpi_node_get_property_reference()
arguments to be put in an incorrect order (Sunil V L)
- Work around bogus -Wstringop-overread warning on LoongArch since
GCC 11 in ACPICA (Xi Ruoyao)"
* tag 'acpi-6.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPICA: Work around bogus -Wstringop-overread warning since GCC 11
ACPI: property: Fix argument order in __acpi_node_get_property_reference()
- Add missing _RET == 0 condition to recently introduced conditional
guard definitions for runtime PM (Rafael Wysocki)
- Revert a cpuidle menu governor change that introduced a serious
performance regression on Chromebooks with Intel Jasper Lake
processors (Rafael Wysocki)
- Fix an amd-pstate driver regression leading to EPP=0 after
hibernation (Mario Limonciello)
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Merge tag 'pm-6.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These revert a cpuidle menu governor commit leading to a performance
regression, fix an amd-pstate driver regression introduced recently,
and fix new conditional guard definitions for runtime PM.
- Add missing _RET == 0 condition to recently introduced conditional
guard definitions for runtime PM (Rafael Wysocki)
- Revert a cpuidle menu governor change that introduced a serious
performance regression on Chromebooks with Intel Jasper Lake
processors (Rafael Wysocki)
- Fix an amd-pstate driver regression leading to EPP=0 after
hibernation (Mario Limonciello)"
* tag 'pm-6.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM: runtime: Fix conditional guard definitions
Revert "cpuidle: menu: Avoid discarding useful information"
cpufreq/amd-pstate: Fix a regression leading to EPP 0 after hibernate
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Merge tag 'for-6.18-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
- in send, fix duplicated rmdir operations when using extrefs
(hardlinks), receive can fail with ENOENT
- fixup of error check when reading extent root in ref-verify and
damaged roots are allowed by mount option (found by smatch)
- fix freeing partially initialized fs info (found by syzkaller)
- fix use-after-free when printing ref_tracking status of delayed
inodes
* tag 'for-6.18-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: ref-verify: fix IS_ERR() vs NULL check in btrfs_build_ref_tree()
btrfs: fix delayed_node ref_tracker use after free
btrfs: send: fix duplicated rmdir operations when using extrefs
btrfs: directly free partially initialized fs_info in btrfs_check_leaked_roots()
Devcom device and component registration isn't always critical to the
functionality of the caller, hence the registration can fail and we can
continue working with an ERR_PTR value saved inside a variable.
In order to avoid that make sure all devcom failures return NULL.
Signed-off-by: Patrisious Haddad <phaddad@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/1761136182-918470-4-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Check the PCAM supported registers mask before querying the PPHCR
register, as it is not supported in older devices.
Fixes: 44907e7c8f ("net/mlx5e: Add logic to read RS-FEC histogram bin ranges from PPHCR")
Signed-off-by: Alexei Lazar <alazar@nvidia.com>
Reviewed-by: Yael Chemla <ychemla@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/1761136182-918470-3-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add the PPHCR bit to the port_access_reg_cap_mask field of PCAM
register to indicate that the device supports the PPHCR register
and the RS-FEC histogram feature.
Signed-off-by: Alexei Lazar <alazar@nvidia.com>
Reviewed-by: Yael Chemla <ychemla@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/1761136182-918470-2-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When GSO tunnel is negotiated virtio_net_hdr_tnl_from_skb() tries to
initialize the tunnel metadata but forget to zero unused rxhash
fields. This may leak information to another side. Fixing this by
zeroing the unused hash fields.
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Fixes: a2fb4bc4e2 ("net: implement virtio helpers to handle UDP GSO tunneling")
Cc: <stable@vger.kernel.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Link: https://patch.msgid.link/20251022034421.70244-1-jasowang@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Currently, during the LAN8814 PTP probe shared->phydev is only set if PTP
clock gets actually set, otherwise the function will return before setting
it.
This is an issue as shared->phydev is unconditionally being used when IRQ
is being handled, especially in lan8814_gpio_process_cap and since it was
not set it will cause a NULL pointer exception and crash the kernel.
So, simply always set shared->phydev to avoid the NULL pointer exception.
Fixes: b3f1a08fcf ("net: phy: micrel: Add support for PTP_PF_EXTTS for lan8814")
Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Tested-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Link: https://patch.msgid.link/20251021132034.983936-1-robert.marko@sartura.hr
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Syzbot reported a potential lock inversion deadlock between
vsock_register_mutex and sk_lock-AF_VSOCK when vsock_linger() is called.
The issue was introduced by commit 687aa0c558 ("vsock: Fix
transport_* TOCTOU") which added vsock_register_mutex locking in
vsock_assign_transport() around the transport->release() call, that can
call vsock_linger(). vsock_assign_transport() can be called with sk_lock
held. vsock_linger() calls sk_wait_event() that temporarily releases and
re-acquires sk_lock. During this window, if another thread hold
vsock_register_mutex while trying to acquire sk_lock, a circular
dependency is created.
Fix this by releasing vsock_register_mutex before calling
transport->release() and vsock_deassign_transport(). This is safe
because we don't need to hold vsock_register_mutex while releasing the
old transport, and we ensure the new transport won't disappear by
obtaining a module reference first via try_module_get().
Reported-by: syzbot+10e35716f8e4929681fa@syzkaller.appspotmail.com
Tested-by: syzbot+10e35716f8e4929681fa@syzkaller.appspotmail.com
Fixes: 687aa0c558 ("vsock: Fix transport_* TOCTOU")
Cc: mhal@rbox.co
Cc: stable@vger.kernel.org
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Link: https://patch.msgid.link/20251021121718.137668-1-sgarzare@redhat.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Ralf Lici says:
====================
fix poll behaviour for TCP-based tunnel protocols
This patch series introduces a polling function for datagram-style
sockets that operates on custom skb queues, and updates ovpn (the
OpenVPN data-channel offload module) and espintcp (the TCP Encapsulation
of IKE and IPsec Packets implementation) to use it accordingly.
Protocols like the aforementioned one decapsulate packets received over
TCP and deliver userspace-bound data through a separate skb queue, not
the standard sk_receive_queue. Previously, both relied on
datagram_poll(), which would signal readiness based on non-userspace
packets, leading to misleading poll results and unnecessary recv
attempts in userspace.
Patch 1 introduces datagram_poll_queue(), a variant of datagram_poll()
that accepts an explicit receive queue. This builds on the approach
introduced in commit b50b058, which extended other skb-related functions
to support custom queues. Patch 2 and 3 update espintcp_poll() and
ovpn_tcp_poll() respectively to use this helper, ensuring readiness is
only signaled when userspace data is available.
Each patch is self-contained and the ovpn one includes rationale and
lifecycle enforcement where appropriate.
====================
Link: https://patch.msgid.link/20251021100942.195010-1-ralf@mandelbit.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
openvpn TCP encapsulation uses a custom queue to deliver packets to
userspace. Currently it relies on datagram_poll, which checks
sk_receive_queue, leading to false readiness signals when that queue
contains non-userspace packets.
Switch ovpn_tcp_poll to use datagram_poll_queue with the peer's
user_queue, ensuring poll only signals readiness when userspace data is
actually available. Also refactor ovpn_tcp_poll in order to enforce the
assumption we can make on the lifetime of ovpn_sock and peer.
Fixes: 11851cbd60 ("ovpn: implement TCP transport")
Signed-off-by: Antonio Quartulli <antonio@openvpn.net>
Signed-off-by: Ralf Lici <ralf@mandelbit.com>
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Link: https://patch.msgid.link/20251021100942.195010-4-ralf@mandelbit.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
espintcp uses a custom queue (ike_queue) to deliver packets to
userspace. The polling logic relies on datagram_poll, which checks
sk_receive_queue, which can lead to false readiness signals when that
queue contains non-userspace packets.
Switch espintcp_poll to use datagram_poll_queue with ike_queue, ensuring
poll only signals readiness when userspace data is actually available.
Fixes: e27cca96cd ("xfrm: add espintcp (RFC 8229)")
Signed-off-by: Ralf Lici <ralf@mandelbit.com>
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Link: https://patch.msgid.link/20251021100942.195010-3-ralf@mandelbit.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Some protocols using TCP encapsulation (e.g., espintcp, openvpn) deliver
userspace-bound packets through a custom skb queue rather than the
standard sk_receive_queue.
Introduce datagram_poll_queue that accepts an explicit receive queue,
and convert datagram_poll into a wrapper around datagram_poll_queue.
This allows protocols with custom skb queues to reuse the core polling
logic without relying on sk_receive_queue.
Cc: Sabrina Dubroca <sd@queasysnail.net>
Cc: Antonio Quartulli <antonio@openvpn.net>
Signed-off-by: Ralf Lici <ralf@mandelbit.com>
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Reviewed-by: Antonio Quartulli <antonio@openvpn.net>
Link: https://patch.msgid.link/20251021100942.195010-2-ralf@mandelbit.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Merge an ACPI device properties handling change fixing the order of
__acpi_node_get_property_reference() arguments broken by a recent
update (Sunil V L)
* 'acpi-property':
ACPI: property: Fix argument order in __acpi_node_get_property_reference()
Merge cpuidle and cpufreq fixes for 6.18-rc3:
- Revert a cpuidle menu governor change that introduced a serious
performance regression on Chromebooks with Intel Jasper Lake
processors (Rafael Wysocki)
- Fix an amd-pstate driver regression leading to EPP=0 after
hibernation (Mario Limonciello)
* pm-cpuidle:
Revert "cpuidle: menu: Avoid discarding useful information"
* pm-cpufreq:
cpufreq/amd-pstate: Fix a regression leading to EPP 0 after hibernate
The lan8814 has 4 different SKUs and for 2 of these SKUs the PTP is
disabled. All these SKUs have the same value in the register 2 and 3.
Meaning that we can't differentiate them based on device id, therefore
check the SKU register and based on this allow or not to create a PTP
device.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20251021070726.3690685-1-horatiu.vultur@microchip.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
If the send_peer_notif counter and the peer event notify are not synchronized.
It may cause problems such as the loss or dup of peer notify event.
Before this patch:
- If should_notify_peers is true and the lock for send_peer_notif-- fails, peer
event may be sent again in next mii_monitor loop, because should_notify_peers
is still true.
- If should_notify_peers is true and the lock for send_peer_notif-- succeeded,
but the lock for peer event fails, the peer event will be lost.
This patch locks the RTNL for send_peer_notif, events, and commit simultaneously.
Fixes: 07a4ddec3c ("bonding: add an option to specify a delay between peer notifications")
Cc: Jay Vosburgh <jv@jvosburgh.net>
Cc: Andrew Lunn <andrew+netdev@lunn.ch>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: Hangbin Liu <liuhangbin@gmail.com>
Cc: Nikolay Aleksandrov <razor@blackwall.org>
Cc: Vincent Bernat <vincent@bernat.ch>
Cc: <stable@vger.kernel.org>
Signed-off-by: Tonghao Zhang <tonghao@bamaicloud.com>
Acked-by: Jay Vosburgh <jv@jvosburgh.net>
Link: https://patch.msgid.link/20251021050933.46412-1-tonghao@bamaicloud.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
An error code was assigned to a variable and checked accordingly.
This value was passed to a dev_err_probe() call in an if branch.
This function is documented in the way that the same value is returned.
Thus delete two redundant variable reassignments.
The source code was transformed by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Link: https://patch.msgid.link/71f7daa3-d4f4-4753-aae8-67040fc8297d@web.de
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
HSR/PRP driver does not handle correctly having slaves/interlink devices
in a different net namespace. Currently, it is possible to create a HSR
link in a different net namespace than the slaves/interlink with the
following command:
ip link add hsr0 netns hsr-ns type hsr slave1 eth1 slave2 eth2
As there is no use-case on supporting this scenario, enforce that HSR
device link matches netns defined by IFLA_LINK_NETNSID.
The iproute2 command mentioned above will throw the following error:
Error: hsr: HSR slaves/interlink must be on the same net namespace than HSR link.
Fixes: f421436a59 ("net/hsr: Add support for the High-availability Seamless Redundancy protocol (HSRv0)")
Signed-off-by: Fernando Fernandez Mancera <fmancera@suse.de>
Link: https://patch.msgid.link/20251020135533.9373-1-fmancera@suse.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The TLV_MAX_DATA macro calculates (PAGE_SIZE - 512) which can exceed
the maximum value of a 16-bit unsigned integer on architectures with
large page sizes, causing compiler warnings:
drivers/net/ethernet/meta/fbnic/fbnic_tlv.h:83:24: warning: conversion
from 'long unsigned int' to 'short unsigned int' changes value from
'261632' to '65024' [-Woverflow]
Fix this by explicitly masking the result to 16 bits using bitwise AND
with 0xFFFF, ensuring the value fits within the expected data type
while maintaining the intended behavior for normal page sizes.
This preserves the existing functionality while eliminating the
compiler warning and potential undefined behavior from integer
truncation.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202510190832.3SQkTCHe-lkp@intel.com/
Signed-off-by: Pei Xiao <xiaopei01@kylinos.cn>
Link: https://patch.msgid.link/182b9d0235d044d69d7a57c1296cc6f46e395beb.1761039651.git.xiaopei01@kylinos.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-Wflex-array-member-not-at-end was introduced in GCC-14, and we are
getting ready to enable it, globally.
Use regular arrays instead of flexible-array members (they're not
really needed in this case) in a couple of unions, and fix the
following warnings:
1 drivers/net/ethernet/spacemit/k1_emac.c:122:42: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
1 drivers/net/ethernet/spacemit/k1_emac.c:122:32: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
1 drivers/net/ethernet/spacemit/k1_emac.c:121:42: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
1 drivers/net/ethernet/spacemit/k1_emac.c:121:32: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Acked-by: Vivian Wang <wangruikang@iscas.ac.cn>
Link: https://patch.msgid.link/aPd0YjO-oP60Lgvj@kspp
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
chunk->skb pointer is dereferenced in the if-block where it's supposed
to be NULL only.
chunk->skb can only be NULL if chunk->head_skb is not. Check for frag_list
instead and do it just before replacing chunk->skb. We're sure that
otherwise chunk->skb is non-NULL because of outer if() condition.
Fixes: 90017accff ("sctp: Add GSO support")
Signed-off-by: Alexey Simakov <bigalex934@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Link: https://patch.msgid.link/20251021130034.6333-1-bigalex934@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In ptp_ocp_sma_fb_init(), the code mistakenly used bp->sma[1]
instead of bp->sma[i] inside a for-loop, which caused only SMA[1]
to have its DIRECTION_CAN_CHANGE capability cleared. This led to
inconsistent capability flags across SMA pins.
Fixes: 09eeb3aecc ("ptp_ocp: implement DPLL ops")
Signed-off-by: Jiasheng Jiang <jiashengjiangcool@gmail.com>
Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Link: https://patch.msgid.link/20251021182456.9729-1-jiashengjiangcool@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Replace the has_gmac, has_gmac4 and has_xgmac ints, of which only one
can be set when matching a core to its driver backend, with an
enumerated type carrying the DWMAC core type.
Tested-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Acked-by: Chen-Yu Tsai <wens@kernel.org>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Tested-by: Mohd Ayaan Anwar <mohd.anwar@oss.qualcomm.com>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://patch.msgid.link/E1vB6ld-0000000BIPy-2Qi4@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Lad Prabhakar says:
====================
net: ravb: Fix SoC-specific configuration and descriptor handling issues [part]
This series addresses several issues in the Renesas Ethernet AVB (ravb)
driver related descriptor ordering.
A potential ordering hazard in descriptor setup could cause
the DMA engine to start prematurely, leading to TX stalls on some
platforms.
The series includes the following changes:
Enforce descriptor type ordering to prevent early DMA start
Ensure proper write ordering of TX descriptor type fields to prevent the
DMA engine from observing an incomplete descriptor chain. This fixes
observed TX stalls on RZ/G2L platforms running RT kernels.
Tested on R/G1x Gen2, RZ/G2x Gen3 and RZ/G2L family hardware.
====================
Link: https://patch.msgid.link/20251017151830.171062-1-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add a final dma_wmb() barrier before triggering the transmit request
(TCCR_TSRQ) to ensure all descriptor and buffer writes are visible to
the DMA engine.
According to the hardware manual, a read-back operation is required
before writing to the doorbell register to guarantee completion of
previous writes. Instead of performing a dummy read, a dma_wmb() is
used to both enforce the same ordering semantics on the CPU side and
also to ensure completion of writes.
Fixes: c156633f13 ("Renesas Ethernet AVB driver proper")
Cc: stable@vger.kernel.org
Co-developed-by: Fabrizio Castro <fabrizio.castro.jz@renesas.com>
Signed-off-by: Fabrizio Castro <fabrizio.castro.jz@renesas.com>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://patch.msgid.link/20251017151830.171062-5-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Ensure the TX descriptor type fields are published in a safe order so the
DMA engine never begins processing a descriptor chain before all descriptor
fields are fully initialised.
For multi-descriptor transmits the driver writes DT_FEND into the last
descriptor and DT_FSTART into the first. The DMA engine begins processing
when it observes DT_FSTART. Move the dma_wmb() barrier so it executes
immediately after DT_FEND and immediately before writing DT_FSTART
(and before DT_FSINGLE in the single-descriptor case). This guarantees
that all prior CPU writes to the descriptor memory are visible to the
device before DT_FSTART is seen.
This avoids a situation where compiler/CPU reordering could publish
DT_FSTART ahead of DT_FEND or other descriptor fields, allowing the DMA to
start on a partially initialised chain and causing corrupted transmissions
or TX timeouts. Such a failure was observed on RZ/G2L with an RT kernel as
transmit queue timeouts and device resets.
Fixes: 2f45d1902a ("ravb: minimize TX data copying")
Cc: stable@vger.kernel.org
Co-developed-by: Fabrizio Castro <fabrizio.castro.jz@renesas.com>
Signed-off-by: Fabrizio Castro <fabrizio.castro.jz@renesas.com>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://patch.msgid.link/20251017151830.171062-4-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
All driver fixes. The big change is the storvsc one to rejig the
hyper-v channel handling to be more efficient for SMP virtual
machines.
Signed-off-by: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"All driver fixes. The big change is the storvsc one to rejig the
hyper-v channel handling to be more efficient for SMP virtual
machines"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: ufs: phy: dt-bindings: Add QMP UFS PHY compatible for Kaanapali
scsi: ufs: qcom: dt-bindings: Document the Kaanapali UFS controller
scsi: libfc: Prevent integer overflow in fc_fcp_recv_data()
scsi: qla4xxx: Fix typos in comments
scsi: storvsc: Prefer returning channel with the same CPU as on the I/O issuing CPU
There's a two-patch DAMON series from SeongJae Park which addresses a
missed check and possible memory leak. Apart from that it's all
singletons - please see the changelogs for details.
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Merge tag 'mm-hotfixes-stable-2025-10-22-12-43' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull hotfixes from Andrew Morton:
"17 hotfixes. 12 are cc:stable and 14 are for MM.
There's a two-patch DAMON series from SeongJae Park which addresses a
missed check and possible memory leak. Apart from that it's all
singletons - please see the changelogs for details"
* tag 'mm-hotfixes-stable-2025-10-22-12-43' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
csky: abiv2: adapt to new folio flags field
mm/damon/core: use damos_commit_quota_goal() for new goal commit
mm/damon/core: fix potential memory leak by cleaning ops_filter in damon_destroy_scheme
hugetlbfs: move lock assertions after early returns in huge_pmd_unshare()
vmw_balloon: indicate success when effectively deflating during migration
mm/damon/core: fix list_add_tail() call on damon_call()
mm/mremap: correctly account old mapping after MREMAP_DONTUNMAP remap
mm: prevent poison consumption when splitting THP
ocfs2: clear extent cache after moving/defragmenting extents
mm: don't spin in add_stack_record when gfp flags don't allow
dma-debug: don't report false positives with DMA_BOUNCE_UNALIGNED_KMALLOC
mm/damon/sysfs: dealloc commit test ctx always
mm/damon/sysfs: catch commit test ctx alloc failure
hung_task: fix warnings caused by unaligned lock pointers
Fixes and New HW Support
- alienware-wmi-wmax:
- Fix NULL pointer dereference in sleep handlers
- Add AWCC support to Dell G15 5530
- mellanox: mlxbf-pmc: add sysfs_attr_init() to count_clock init
The following is an automated shortlog grouped by driver:
alienware-wmi-wmax:
- Add AWCC support to Dell G15 5530
- Fix NULL pointer dereference in sleep handlers
MAINTAINERS:
- add Denis Benato as maintainer for asus notebooks
mlxbf-pmc:
- add sysfs_attr_init() to count_clock init
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Merge tag 'platform-drivers-x86-v6.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver fixes from Ilpo Järvinen:
- alienware-wmi-wmax:
- Fix NULL pointer dereference in sleep handlers
- Add AWCC support to Dell G15 5530
- mellanox: mlxbf-pmc: add sysfs_attr_init() to count_clock init
* tag 'platform-drivers-x86-v6.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/x86: alienware-wmi-wmax: Add AWCC support to Dell G15 5530
MAINTAINERS: add Denis Benato as maintainer for asus notebooks
platform/mellanox: mlxbf-pmc: add sysfs_attr_init() to count_clock init
platform/x86: alienware-wmi-wmax: Fix NULL pointer dereference in sleep handlers
This reverts the problematic commit instead of trying to fix it in a
rush
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Merge tag '9p-for-6.18-rc3-v2' of https://github.com/martinetd/linux
Pull 9pfs fix from Dominique Martinet:
"Fix 9p cache=mmap regression by revert
This reverts the problematic commit instead of trying to fix it in a
rush"
* tag '9p-for-6.18-rc3-v2' of https://github.com/martinetd/linux:
Revert "fs/9p: Refresh metadata in d_revalidate for uncached mode too"
Since pm_runtime_get_active() returns 0 on success, all of the
DEFINE_GUARD_COND() macros in pm_runtime.h need the "_RET == 0"
condition at the end of the argument list or they would not work
correctly.
Fixes: 9a0abc3945 ("PM: runtime: Add auto-cleanup macros for "resume and get" operations")
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/linux-pm/202510191529.BCyjKlLQ-lkp@intel.com/
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Tested-by: Farhan Ali <alifm@linux.ibm.com>
Link: https://patch.msgid.link/5943878.DvuYhMxLoT@rafael.j.wysocki
Move the print before releasing the delayed node.
In my initial testing there was a bug that was causing delayed_nodes
to not get freed which is why I put the print after the release. This
obviously neglects the case where the delayed node is properly freed.
Add condition to make sure we only print if we have more than one
reference to the delayed_node to prevent printing when we only have
the reference taken in btrfs_kill_all_delayed_nodes().
Fixes: b767a28d61 ("btrfs: print leaked references in kill_all_delayed_nodes()")
Tested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Leo Martins <loemra.dev@gmail.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This reverts commit 290434474c.
That commit broke cache=mmap, a mode that doesn't cache metadata,
but still has writeback cache.
In commit 290434474c ("fs/9p: Refresh metadata in d_revalidate
for uncached mode too") we considered metadata cache to be enough to
not look at the server, but in writeback cache too looking at the server
size would make the vfs consider the file has been truncated before the
data has been flushed out, making the following repro fail (nothing is
ever read back, the resulting file ends up with no data written)
```
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
char buf[4096];
int main(int argc, char *argv[])
{
int ret, i;
int fdw, fdr;
if (argc < 2)
return 1;
fdw = openat(AT_FDCWD, argv[1], O_RDWR|O_CREAT|O_EXCL|O_CLOEXEC, 0600);
if (fdw < 0) {
fprintf(stderr, "cannot open fdw\n");
return 1;
}
write(fdw, buf, sizeof(buf));
fdr = openat(AT_FDCWD, argv[1], O_RDONLY|O_CLOEXEC);
if (fdr < 0) {
fprintf(stderr, "cannot open fdr\n");
close(fdw);
return 1;
}
for (i = 0; i < 10; i++) {
ret = read(fdr, buf, sizeof(buf));
fprintf(stderr, "i: %d, read returns %d\n", i, ret);
}
close(fdr);
close(fdw);
return 0;
}
```
There is a fix for this particular reproducer but it looks like there
are other problems around metadata refresh (e.g. around file rename), so
revert this to avoid d_revalidate in uncached mode for now.
Reported-by: Song Liu <song@kernel.org>
Link: https://lkml.kernel.org/r/CAHzjS_u_SYdt5=2gYO_dxzMKXzGMt-TfdE_ueowg-Hq5tRCAiw@mail.gmail.com
Reported-by: Andrii Nakryiko <andrii.nakryiko@gmail.com>
Link: https://lore.kernel.org/bpf/CAEf4BzZbCE4tLoDZyUf_aASpgAGFj75QMfSXX4a4dLYixnOiLg@mail.gmail.com/
Fixes: 290434474c ("fs/9p: Refresh metadata in d_revalidate for uncached mode too")
Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
hibmcge uses fixed_phy_register() et al, but doesn't cater for the case
that hibmcge is built-in and fixed_phy is a module. To solve this
select FIXED_PHY.
Fixes: 1d7cd7a9c6 ("net: hibmcge: support scenario without PHY")
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Jijie Shao <shaojijie@huawei.com>
Link: https://patch.msgid.link/c4fc061f-b6d5-418b-a0dc-6b238cdbedce@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add supported_extts_flags and supported_perout_flags configuration to make
the driver complaint with the latest API.
Initialize channel information to 0 to avoid confusing users, because HW
doesn't actually care about channels.
Signed-off-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Link: https://patch.msgid.link/20251019225720.898550-1-vadim.fedorenko@linux.dev
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Replace `dev_kfree_skb()` with `dev_kfree_skb_any()` in `start_xmit()`
which can be called from netpoll (hard IRQ) and from other contexts.
Also, `np->link_status` can be changed at any time by interrupt handler.
<idle>-0 [011] dNh4. 4541.754603: start_xmit <-netpoll_start_xmit
<idle>-0 [011] dNh4. 4541.754622: <stack trace>
=> [FTRACE TRAMPOLINE]
=> start_xmit
=> netpoll_start_xmit
=> netpoll_send_skb
=> write_msg
=> console_flush_all
=> console_unlock
=> vprintk_emit
=> _printk
=> rio_interrupt
=> __handle_irq_event_percpu
=> handle_irq_event
=> handle_fasteoi_irq
=> __common_interrupt
=> common_interrupt
=> asm_common_interrupt
=> mwait_idle
=> default_idle_call
=> do_idle
=> cpu_startup_entry
=> start_secondary
=> common_startup_64
This issue can occur when the link state changes from off to on
(e.g., plugging or unplugging the LAN cable) while transmitting a
packet. If the skb has a destructor, a warning message may be
printed in this situation.
-> consume_skb (dev_kfree_skb())
-> __kfree_skb()
-> skb_release_all()
-> skb_release_head_state(skb)
if (skb->destructor) {
DEBUG_NET_WARN_ON_ONCE(in_hardirq());
skb->destructor(skb);
}
Found by inspection.
Signed-off-by: Yeounsu Moon <yyyynoom@gmail.com>
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Tested-on: D-Link DGE-550T Rev-A3
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20251019075540.55697-1-yyyynoom@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
update old legacy cleanup_module from the file with __exit
module as per kernel code practices and restore the #ifdef
MODULE condition to allow successful compilation as a built
-in driver.
The file had an old cleanup_module still in use which could
be updated with __exit module function although its init_module
is indeed newer however the cleanup_module was still
using the older version of exit.
To set proper exit module function replace cleanup_module
with __exit corkscrew_exit_module to align it to the
kernel code consistency.
Signed-off-by: Shi Hao <i.shihao.999@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20251018052541.124365-1-i.shihao.999@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
