Remaining updates for the 7.3 merge window. The only core change is
enabling context analysis for the SCSI layer and UFS. The remaining
changes are either bug fixes or hardening.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi
Pull more SCSI updates from Martin Petersen:
"Remaining updates for the 7.3 merge window. The only core change is
enabling context analysis for the SCSI layer and UFS.
The remaining changes are either bug fixes or hardening"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi: (26 commits)
scsi: snic: Fix SCSI host leak on workqueue allocation failure
scsi: MAINTAINERS: Update my email address
scsi: MAINTAINERS: Leave the cumana_1 and oak drivers to the RISCPC maintainers
scsi: leapraid: Standardize NCQ priority sysfs attributes
scsi: leapraid: Serialize firmware log mmap with teardown
scsi: leapraid: Balance host references for firmware log VMAs
scsi: lpfc: Remove unnnecessary NULL check
scsi: qla2xxx: Fix an loop timeout test
scsi: qla2xxx: Fix an error code in qla_get_tmf()
scsi: ibmvfc: Fix use of uninitialized rport in ibmvfc_do_work()
scsi: core: Enable context analysis for hosts.o
scsi: lpfc: Replace strlcat() with sysfs_emit_at() in the sysfs show functions
scsi: lpfc: Replace strlcat() with seq_buf in the debugfs dump helpers
scsi: lpfc: Replace strlcat() with seq_buf in lpfc_rx_monitor_report()
scsi: lpfc: Replace strlcat() with scnprintf() in lpfc_vport_symbolic_node_name()
scsi: lpfc: Replace strlcat() with seq_buf in lpfc_info()
scsi: core: Enable context analysis
scsi: core: Protect host state changes with the host lock
scsi: core: Add lock context annotations
scsi: core: Pass the SCSI host pointer directly to scanning functions
...
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Merge tag 'hyperv-next-signed-20260826' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux
Pull hyperv updates from Wei Liu:
- Decrypt netvsc buffer on contiguous direct-map addresses (Kameron
Carr)
- Drop WS2012/2012R2 & Win8/8.1 Hyper-V support (Michael Kelley)
- Use more meaningful errnos for hypercall status code (Hardik Garg)
- Fix lost interrupts on CPU hot-unplug for Hyper-V PCI/MSI (Naman
Jain)
- Reserve more MSHV vectors for Linux root partition (Wei Liu)
* tag 'hyperv-next-signed-20260826' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
clocksource: hyper-v: Remove support for stimer interrupts in message mode
scsi: storvsc: Remove support for storvsc protocol of old Hyper-V hosts
hv_netvsc: Remove GPADL teardown special case for old Hyper-V hosts
hv_sock: Remove check for old Hyper-V hosts
Drivers: hv: Remove support for WS2012/2012R2 & Win8/8.1 version of Hyper-V
hv_netvsc: Allocate send/receive buffers using vmbus_alloc_buffer()
Drivers: hv: vmbus: Add vmbus_alloc_buffer()/vmbus_free_buffer() for CoCo VMs
Drivers: hv: vmbus: add vmbus_establish_gpadl_caller_decrypted()
Drivers: hv: vmbus: Skip VMBus module cleanup for non-nested root partition
x86/hyperv: reserve more vectors
PCI: hv: Set irq_retrigger callback for the Hyper-V PCI MSI irqchip
Drivers: hv: Use meaningful errnos for hypercall status codes
In snic_add_host(), if scsi_add_host() succeeds but
alloc_ordered_workqueue() fails, the function returns -ENOMEM with
shost->work_q left as NULL. The caller's error path then calls
snic_del_host(), which returns early when !shost->work_q without calling
scsi_remove_host(). The Scsi_Host remains registered in sysfs as a zombie
device even after the probe has failed. This causes:
- The leaked host remains visible in /sys/class/scsi_host/ after probe
failure, with state "running".
- Subsequent SCSI host numbering is permanently shifted (the leaked host
ID from ida_alloc() is never reclaimed).
- Memory leak: the Scsi_Host allocation can never be freed because
device_add() took a reference that can only be released by device_del()
inside scsi_remove_host().
Fix by adding scsi_remove_host() in the workqueue allocation failure path
inside snic_add_host(), undoing the successful scsi_add_host() before
returning the error. This is cleaner than modifying snic_del_host() because
snic_del_host() is called from a shared error label that also serves paths
where snic_add_host() was never invoked.
Reproducer (requires no real SNIC hardware):
- Build CONFIG_SCSI_SNIC=y (built-in)
- Add snic.test_mode=1 snic.inject_wq_fail=1 to kernel cmdline
- Boot with a PCI device matching the snic driver (e.g. QEMU edu device,
PCI ID 0x1234:0x11e8, temporarily added to the driver's PCI ID table)
Before the fix:
# /sys/class/scsi_host/ contains a zombie host0:
$ cat /sys/class/scsi_host/host0/proc_name
snic_scsi
$ cat /sys/class/scsi_host/host0/state
running
# ata_piix gets host1, host2 (host0 stuck):
scsi host1: ata_piix
scsi host2: ata_piix
After the fix:
# host0 is properly freed and reused by ata_piix:
scsi host0: ata_piix
scsi host1: ata_piix
# No zombie host in /sys/class/scsi_host/
Signed-off-by: Chen Changcheng <chenchangcheng@kylinos.cn>
Acked-by: Narsimhulu Musini <nmusini@cisco.com>
Link: https://patch.msgid.link/20260727073438.209673-1-chenchangcheng@kylinos.cn
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>
Replace the earlier LeapRAID ncq_cmd_prio_enable attribute with the
standard sas_ncq_prio_supported and sas_ncq_prio_enable names documented in
Documentation/ABI/testing/sysfs-block-device, and rename the per-device NCQ
priority state to match.
The earlier ncq_cmd_prio_enable name has not yet been established as part
of a released userspace ABI, so no compatibility alias is needed.
For LeapRAID, sas_ncq_prio_enable is backed by the driver's per-device NCQ
priority state and controls whether RT-class I/O requests are issued with
command priority on supported SATA devices.
Update leapraid.rst to describe the standard attribute names and paths, and
clean up the surrounding RST text for consistency with kernel documentation
style.
Also switch the capability check from open-coded VPD page 0x89 parsing to
sas_ata_ncq_prio_supported(), use kstrtobool() for the enable path, and
expose the NCQ priority attributes only for SATA devices using LeapRAID's
target-private SAS device state.
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Dongdong Hao <doubled@leap-io-kernel.com>
Reviewed-by: Hannes Reinecke <hare@kernel.org>
Link: https://patch.msgid.link/20260814090526.395704-1-doubled@leap-io-kernel.com
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>
leapraid_fw_log_exit() waits for mmap_refcnt to reach zero before it frees
the firmware log buffer. leapraid_fw_mmap() checks host_removing, but it
does not increment mmap_refcnt until after dma_mmap_coherent() succeeds and
the VMA open callback runs.
Removal can set host_removing and observe a zero mmap_refcnt between the
check and the VMA open. It can then free the coherent buffer while the
mmap path is still establishing a userspace mapping of it.
Claim a temporary mmap reference while looking up the adapter under
leapraid_adapter_lock. Removal deletes the adapter from the same locked
list after setting host_removing, so a mapping is either rejected or
included in the count that removal waits for. Drop the temporary reference
on the common exit path, after a successful VMA open has acquired the
reference covering the VMA lifetime.
Fixes: 5597088c9e ("scsi: leapraid: Add new SCSI driver")
Signed-off-by: Linmao Li <lilinmao@kylinos.cn>
Reviewed-by: Dongdong Hao <doubled@leap-io-kernel.com>
Link: https://patch.msgid.link/20260814033845.2971706-3-lilinmao@kylinos.cn
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>
leapraid_fw_mmap() keeps the Scsi_Host reference obtained while looking up
the adapter for the lifetime of the initial VMA. The VMA close callback
drops that reference.
The open callback is also invoked when a VMA is duplicated or split, but it
only increments mmap_refcnt. Since every corresponding close callback
drops a host reference, cloning the mapping can release the host while
another VMA still refers to the adapter.
Take a host device reference for every VMA open and release the lookup
reference once the initial mapping has acquired its own reference. Use
get_device() because a VMA can be cloned after the host enters SHOST_DEL;
an existing VMA still pins the host at that point and open cannot fail.
Fixes: 5597088c9e ("scsi: leapraid: Add new SCSI driver")
Signed-off-by: Linmao Li <lilinmao@kylinos.cn>
Reviewed-by: Dongdong Hao <doubled@leap-io-kernel.com>
Link: https://patch.msgid.link/20260814033845.2971706-2-lilinmao@kylinos.cn
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>
The "evt_dat" variale is non-NULL at this point so there is no need to
check. Delete the check and pull the code in a tab.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Reviewed-by: Paul Ely <paul.ely@broadcom.com>
Link: https://patch.msgid.link/an1trOAUeQmYEus_@stanley.mountain
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>
This loop timeout with "retries" set to -1, not 0. Fix the test for
failure.
Fixes: 7ec0effd30 ("[SCSI] qla2xxx: Add support for ISP8044.")
Signed-off-by: Dan Carpenter <error27@gmail.com>
Link: https://patch.msgid.link/an1twcxTYSFkkUTA@stanley.mountain
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>
Negative -EIO was intended instead of positive EIO. The caller, doesn't
care so this doesn't affect runtime. It's just a cleanup.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Link: https://patch.msgid.link/an1taxANE_4_vzJT@stanley.mountain
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>
After commit 696d1cc2aa ("scsi: ibmvfc: process NVMe/FC rports in work
thread"), clang warns (or errors with CONFIG_WERROR=y / W=e):
drivers/scsi/ibmvscsi/ibmvfc-core.c:6154:15: error: variable 'rport' is uninitialized when used here [-Werror,-Wuninitialized]
6154 | } else if (rport && tgt->action == IBMVFC_TGT_ACTION_DEL_AND_LOGOUT_RPORT) {
| ^~~~~
The check for rport is unnecessary in this block, it was accidentally
included from copying and pasting. Remove it to clear up the warning.
Fixes: 696d1cc2aa ("scsi: ibmvfc: process NVMe/FC rports in work thread")
Suggested-by: Tyrel Datwyler <tyreld@linux.ibm.com>
Link: https://lore.kernel.org/6ccbe8c5-beb6-483f-bfa4-c2d3819ad5f2@linux.ibm.com/
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Acked-by: Tyrel Datwyler <tyreld@linux.ibm.com>
Link: https://patch.msgid.link/20260817-ibmvscsi-rport-wuninitialized-v1-1-0fdfb27a5f01@kernel.org
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>
Enable compiler-based context analysis for drivers/scsi/hosts.c by setting
CONTEXT_ANALYSIS_hosts.o := y in drivers/scsi/Makefile.
The SCSI host management code in hosts.c now has the necessary lock context
annotations (such as __must_hold(shost->host_lock) on scsi_host_set_state)
and conforms to compile-time lock checking rules. It builds cleanly without
triggering any context analysis warnings.
Enable context analysis for hosts.o so that lock correctness and context
safety invariants for SCSI host operations are verified at compile time
when CONFIG_WARN_CONTEXT_ANALYSIS is enabled.
Fixes: fb0fc67db9 ("scsi: core: Enable context analysis")
Reported-by: John Garry <john.g.garry@oracle.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Link: https://patch.msgid.link/3e1c3c0ca9307e2581cf4b96cf3fcdae35202255.1786724393.git.bvanassche@acm.org
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>
With the overall removal of Linux support for running on Hyper-V
hosts earlier than WS2016 and Windows 10, it's no longer necessary
to support older storvsc protocols. Remove the support and associated
special case code. However, support for the protocol for Windows
Server 2012R2 and Win8.1 (protocol version 6.0) is *not* removed
because it is activiely used by HvLite in the paravisor for Azure VMs.
Signed-off-by: Michael Kelley <mhklinux@outlook.com>
Signed-off-by: Wei Liu <wei.liu@kernel.org>
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Merge tag 'pci-v7.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull PCI updates from Bjorn Helgaas:
"Resource management:
- Add hotplug reservation only once (not at each level of the
hierarchy) so bridge windows don't grow more than necessary (Ilpo
Järvinen)
Driver binding:
- Rework device matching so device ID lifetime only needs to cover
the probe path since dynamic IDs can be removed at any time (Gary
Guo)
Error handling:
- Update mappings of AER errors to agent & layer and log them for
each individual error when multiple errors detected (Lukas Wunner)
- Log Error Source only once, not twice in separate messages (Lukas
Wunner)
- Emit TLP Log only for unmasked errors (Lukas Wunner)
- Support Advisory Non-Fatal Errors (Lukas Wunner)
- Allow DPC on all Downstream Ports, not just Root Ports, when OS
controls AER (Darshit Shah)
ASPM:
- Program the same ASPM Control values for every function of
multi-function devices, as recommended by the PCIe spec (Krishna
Chaitanya Chundru)
- Avoid L0s for Realtek RTS525A, where it causes an AER interrupt
storm (Max Lee)
- Avoid ASPM L0s, L1, and L1 PM Substates based on 'aspm-no-l0s',
'aspm-no-l1' [1], and 'aspm-no-l1ss' DT properties (Krishna
Chaitanya Chundru)
Power management:
- Allow D3 for native hotplug-capable Root Ports on non-x86 platforms
(we avoid D3 for these ports on x86 because some old platforms
didn't validate it) (Manivannan Sadhasivam)
- Allow portdrv to claim Ports even if they don't support services
(AER, PME, DPC, hotplug, etc) so it can do power management (Brian
Norris)
Power control:
- Add support for PCIe WAKE# interrupt when described via DT (Krishna
Chaitanya Chundru)
- For the TC9563 PCIe switch:
- Take a reference on the I2C adapter to avoid uninterruptible
hang when unloading an I2C module while in-use (Johan Hovold)
- Update DT binding and driver to restrict Tx Amplitude, DFE and
N_FTS to USP, DSP1 and DSP2 (Manivannan Sadhasivam)
- Power off only external-facing ports (DSP1, DSP2), leaving USP
and DSP3 (aka VDSP) powered up (Manivannan Sadhasivam)
- Move integrated MAC Endpoint out of the list of internal ports
and configure it separately (Manivannan Sadhasivam)
Virtualization:
- Add ACS quirk for Pericom PI7C9X2G608 switches (Tim Harvey)
- Fix a long-standing bug in the Intel PCH Root Port MPC ACS quirk
that didn't update the intended INTEL_MPC_REG_IRBNCE bit because it
used a 16-bit config write when a 32-bit write was intended
(Mohamad Raizudeen)
Procfs:
- Avoid spurious runtime PM wakeup on config space accesses that are
outside config space and fail before reaching PCI (Krzysztof
Wilczyński)
- Warn on user-space writes to kernel-exclusive config space regions,
as we already do for sysfs (Krzysztof Wilczyński)
- Check credentials of opener, not reader, for config space reads, as
we already do for sysfs (Krzysztof Wilczyński)
Sysfs:
- In pci_write_legacy_io(), avoid out-of-bounds reads from the user
buffer and fix incorrect ioport write data (1-byte writes on
little-endian powerpc, 2- and 4-byte writes on big-endian powerpc)
(Krzysztof Wilczyński)
- In pci_read_legacy_io(), fix incorrect ioport read data for 2- and
4-byte reads on big-endian powerpc (Krzysztof Wilczyński)
- Fix I/O port accessor argument order in Alpha pci_legacy_write()
(Krzysztof Wilczyński)
- Avoid spurious runtime PM wakeup on config space accesses that are
outside config space and fail before reaching PCI (Krzysztof
Wilczyński)
- Return -EINVAL, not -ENODEV, for mmap of I/O BAR that fails because
the arch doesn't support it, as we do for procfs (Krzysztof
Wilczyński)
- Check for LOCKDOWN_PCI_ACCESS for legacy_io and legacy_mem, as we
do for other config space accessors (Krzysztof Wilczyński)
Peer-to-peer DMA:
- Add Nvidia Vera Rubin to list of platforms that support P2PDMA
(Leon Romanovsky)
Endpoint framework:
- Check doorbell SUCCESS bit in pci_endpoint_test to avoid treating
some failures as successes (Niklas Cassel)
- Fail doorbell test when the trigger IRQ is missed (Niklas Cassel)
New native PCIe controller drivers:
- Add DT binding and driver for NVIDIA Tegra264 (Thierry Reding)
Native PCIe controllers:
- Use common wait time definitions for PCIe link monitoring instead
of defining driver-private duplicates (Thierry Reding)
Generic host bridge driver:
- Fix NULL pointer dereference that caused enumeration failures on
32-bit CAM systems (Steffen Persvold)
Amlogic Meson PCIe controller driver:
- Correct the PERST# GPIO state so it remains asserted until power
and REFCLK become stable to fix enumeration failure (Ronald
Claveau)
ASPEED PCIe controller driver:
- Switch to irq_domain_create_linear() so we can obsolete
irq_domain_add_linear() (Jiri Slaby)
Cadence PCIe controller driver:
- Add MODULE_DEVICE_TABLE to generate module aliases for OF-based
module autoloading (Pengpeng Hou)
- Add debugfs 'ltssm_status' file for LGA- and HPA-based Cadence
controllers (Hans Zhang)
- Support up to x4 (not x2) lanes for J200 (Takuma Fujiwara)
- Fix host/endpoint dependencies for cadence-plat driver to fix link
error when cadence-plat is built-in but the host or endpoint driver
is modular (Aksh Garg)
Freescale i.MX6 PCIe controller driver:
- Add imx6 intr/aer/pme interrupt lines for i.MX95 (Richard Zhu)
- Remove PERST# checking from pci_host_common_parse_port() so callers
can decide whether to fall back to legacy DT binding with PERST# in
the host bridge (Sherry Sun)
- Fix build issues when PCI_PWRCTRL_GENERIC or PCI_HOST_COMMON is a
module (Arnd Bergmann)
- Create pwrctrl devices only once by doing it from imx_pcie_probe()
instead of imx_pcie_host_init(), which is used during both probe
and resume (Sherry Sun)
- Use 'dw_pcie_rp->skip_pwrctrl_off' to avoid powering off devices
during suspend to preserve wakeup capability (Sherry Sun)
- Add runtime PM support for i.MX95 to allow dynamic power management
when the link is idle (Richard Zhu)
Intel VMD host bridge driver:
- Support device ID 0x28C1 and assume that BIOS has already
enumerated the hierarchy below VMD and stored bus range info for OS
to use (Nirmal Patel)
- Add support for VMCONFIG BUS_RESTRICT_CFG=3, which makes it
possible to enumerate downstream devices on Intel Arrow Lake-HX
systems and probably others (Ali Alaei)
- Pay attention to _OSC negotiation for VMD hierarchy only when
running on bare metal, not when running in a VM (Nirmal Patel)
- Add Nova Lake (NVL) and Dunlow (DNL) Device IDs (Szymon Durawa)
MediaTek PCIe controller driver:
- Add support for PCIe controller in EcoNet EN7528 and EN751221 SoCs
(Caleb James DeLisle)
MediaTek PCIe Gen3 controller driver:
- Add mediatek-gen3 'memory-region' for restricted DMA buffer
(Chen-Yu Tsai)
NVIDIA Tegra264 PCIe controller driver:
- Distinguish Tegra264 C0 PCIe controller for internal GPU from C1-C5
controllers so the unit address matches the first 'reg' entry
(Thierry Reding)
- Add Tegra264 Root Port stanzas to prepare for generic WAKE#
handling (Thierry Reding)
Qualcomm PCIe controller driver:
- Add IPQ9650 compatible with global interrupt (Kathiravan
Thirumoorthy)
- Add IPQ5210 compatible with IPQ9574 fallback (Varadarajan
Narayanan)
- Add DT binding and driver support for Hawi SoC (Matthew Leung)
- Skip PERST# GPIOs provided by downstream PCIe devices, which should
be handled by drivers of those devices (Manivannan Sadhasivam)
- Stop advertising Attention Button Present (no Qcom SoCs support
Attention Buttons) so pciehp can use Presence Detect Changed events
(Qiang Yu)
Renesas R-Car PCIe controller driver:
- Add rcar-gen4-pci-host optional 'msi-parent' for GIT ITS (Marek
Vasut)
- When MSI is enabled but iMSI-RX is not used, configure AXIINTC to
allow GIT ITS to handle MSI (Marek Vasut)
- Refactor GIC600 implementation to make it easier to add platforms
that only support 32-bit addressing (Marek Vasut)
- Add Renesas R-Car Gen4 S4/V4H/V4M to the list of GIC600
integrations that only support 32-bit addressing (Marek Vasut)
Renesas RZ/G3S PCIe controller driver:
- Add DT binding and driver support for RZ/V2H(P) SoC, which contains
two PCIe controllers, configured either as a single x4 link or two
independent x2 link controllers (Lad Prabhakar)
SpacemiT K1 PCIe controller driver:
- Add missing MODULE_DEVICE_TABLE() to generate module alias info for
OF-based module autoloading (Pengpeng Hou)
StarFive PCIe controller driver:
- Fix resource leaks on error paths in host_init() (Ali Tariq)
- Fix runtime PM handling and teardown ordering to avoid register
access while power or clocks are disabled (Ali Tariq)
- Check for runtime PM resume failure to avoid register access while
power or clocks are disabled (Ali Tariq)
Synopsys DesignWare PCIe controller driver:
- Add LECARC PMU IDs to the DWC RAS/DES VSEC list so it can take
advantage of the existing debugfs support for silicon debug, error
injection, and event counters (Brett Zhou)
- Factor pcie_valid_speed() and pci_bus_speed2lnkctl2() out of bwctrl
so they can be shared by the DWC core (Hans Zhang)
- Flush MSI writes from endpoint before unmapping the iATU, as we
already do for MSI-X writes (Niklas Cassel)
- Unmap MSI iATU window before mapping MSI-X window, to avoid a
subsequent MSI write using a disabled aperture and losing the
interrupt (Niklas Cassel)
- Change endpoint .pre_init() and .init() callbacks to return errors
and handle them (Marek Vasut)
UltraRISC PCIe controller driver:
- Add 'core', 'dbi', and 'aux' clocks to DT binding and manage them
in the driver (Jia Wang)
- Use module_platform_driver() since this may be built as a module,
though not removable because IRQs can't be safely disposed (Jia
Wang)
MicroSemi Switchtec management driver:
- Add Microchip PCI1008 device ID and include it in NTB DMA alias
quirk (Logan Gunthorpe)
Miscellaneous:
- Document how to write PCI Host Controller drivers (Manivannan
Sadhasivam)
- Fix typos in documentation (D'Orus Tsitera)
- Use %pe format specifier to print error pointers so we get symbolic
errname when available (Krzysztof Wilczyński)"
* tag 'pci-v7.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (124 commits)
PCI: vmd: Add Nova Lake (NVL) and Dunlow (DNL) Device IDs
PCI: tegra264: Add Tegra264 support
dt-bindings: PCI: tegra264: Switch to PCIe Root Port bindings
dt-bindings: PCI: tegra264: Strictly distinguish C0 from C1-C5
PCI/AER: Support Advisory Non-Fatal Errors
PCI: Fix 32-bit config write in Intel PCH Root Port MPC ACS quirk
PCI: dwc: Handle return value from endpoint .pre_init callback
PCI: dwc: Handle return value from endpoint .init callback
PCI: dwc: Add PCI ID for LECARC PCIe PMU
PCI/ASPM: Mask ASPM states based on Devicetree properties
PCI/ASPM: Disable/restore ASPM on every function for multi-function devices
Documentation: PCI: Document how to write PCI Host Controller drivers
PCI/ASPM: Use pcie_capability_clear_and_set_word() for ASPM disable/restore
PCI: Add support for PCIe WAKE# interrupt
PCI: Allow D3 for native hotplug-capable Root Ports on non-x86 platforms
dt-bindings: PCI: Correct white-space style
PCI/ASPM: Avoid L0s for Realtek RTS525A
PCI: ultrarisc: Use module_platform_driver()
PCI: ultrarisc: Get and enable DP1000 PCIe controller clocks
dt-bindings: PCI: ultrarisc: Add required DP1000 PCIe clocks
...
One new driver: leapraid (similar to mpi3mr but OK'd by Broadcom). The
usual suspects for driver updates (ufs, qla2xxx, smartpqi, zfcp, fnic,
ibmvfc) plus a few small core updates: a fix for an uninitialized sg
list pad bytes plus the removal of the dma mask check for max
sectors. The big update in the sd driver is mostly code refactoring for
obscure error leg handling.
Signed-off-by: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"One new driver: leapraid (similar to mpi3mr but OK'd by Broadcom). The
usual suspects for driver updates (ufs, qla2xxx, smartpqi, zfcp, fnic,
ibmvfc) plus a few small core updates: a fix for an uninitialized sg
list pad bytes plus the removal of the dma mask check for max sectors.
The big update in the sd driver is mostly code refactoring for obscure
error leg handling"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (195 commits)
scsi: fnic: Fix built-in NVMe/FC build
scsi: fnic: Fix invalid comparison for error
scsi: core: Fill in DMA padding bytes in scsi_alloc_sgtables()
scsi: zfcp: Enable CONTEXT_ANALYSIS
scsi: zfcp: Add __must_hold() attribute to zfcp_qdio_sbal_get()
scsi: fnic: Use GFP_ATOMIC for VLAN alloc under spinlock
scsi: storvsc: Support manual scans for all Hyper-V targets
scsi: sd: Fix sd_done() sense handling condition
scsi: sd: Fix special_vec mempool leak when scsi_alloc_sgtables() fails
scsi: sd: Fix error handling in sd_probe() after large pool creation failure
scsi: leapraid: Add driver documentation
scsi: leapraid: Add new SCSI driver
scsi: ufs: Add support for the aggregated read query opcode
scsi: ufs: Use unsigned types for the BSG query
scsi: ibmvfc: Fix spelling mistake "Deleteing" -> "Deleting"
scsi: qla2xxx: Update version to 12.00.00.2607b2
scsi: qla2xxx: Bound i2c->length in I2C bsg handlers
scsi: qla2xxx: Zero SFP DMA buffer in FRU/I2C bsg handlers
scsi: qla2xxx: Validate BSG request_len before reading vendor_cmd[]
scsi: qla2xxx: Zero-init bsg stack buffers to avoid info leak
...
- Some code cleanups to rename the function used to identify ZAC
devices and declare some local functions static (me).
- Refactoring and improvement of the translation of the SCSI
REPORT SUPPORTED OPCODES command to allow users access to the entire
list of supported commands (me).
- Fix the translation of the WRITE SAME command with UNMAP bit set (DSM
TRIM) for devices with a sector size larger than 2K and devices that
support multiple TRIM segments (Niklas).
- Add support detecting support for and translating the SCSI commands
related to the storage elements depopulation feature (GET PHYSICAL
ELEMENT STATUS, REMOVE ELEMENT AND TRUCATE, REMOVE ELEMENT AND MODIFY
ZONES and RESTORE ELEMENTS AND REBUILD) (me).
- Improvements to the sata_mv driver probe code (clocks and IRQ
initialization) (Rosen).
- Improve resource initialization in the pata_rb532_cf, pata_pxa,
sata_highbank and ahci_da850 drivers (Rosen).
- Improve PIO data-in command completions to better hndle slow devices,
e.g. CF cards (Richard).
- Improve the DMA channel management using device resources in the
pata_pxa driver (Rosen).
- Fix the pata_ep93xx driver to correctly fallback to PIO mode if DMA
initialization fails (Rosen).
- Use named initializers to define the match tables of the ahci_xgene,
ahci_qoriq and ahci_platform drivers (Pawel).
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Merge tag 'ata-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux
Pull ata updates from Damien Le Moal:
- Some code cleanups to rename the function used to identify ZAC
devices and declare some local functions static (me)
- Refactoring and improvement of the translation of the SCSI REPORT
SUPPORTED OPCODES command to allow users access to the entire list of
supported commands (me)
- Fix the translation of the WRITE SAME command with UNMAP bit set (DSM
TRIM) for devices with a sector size larger than 2K and devices that
support multiple TRIM segments (Niklas)
- Add support detecting support for and translating the SCSI commands
related to the storage elements depopulation feature (GET PHYSICAL
ELEMENT STATUS, REMOVE ELEMENT AND TRUCATE, REMOVE ELEMENT AND MODIFY
ZONES and RESTORE ELEMENTS AND REBUILD) (me)
- Improvements to the sata_mv driver probe code (clocks and IRQ
initialization) (Rosen)
- Improve resource initialization in the pata_rb532_cf, pata_pxa,
sata_highbank and ahci_da850 drivers (Rosen)
- Improve PIO data-in command completions to better hndle slow devices,
e.g. CF cards (Richard)
- Improve the DMA channel management using device resources in the
pata_pxa driver (Rosen)
- Fix the pata_ep93xx driver to correctly fallback to PIO mode if DMA
initialization fails (Rosen)
- Use named initializers to define the match tables of the ahci_xgene,
ahci_qoriq and ahci_platform drivers (Pawel)
* tag 'ata-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux: (28 commits)
ata: use named initializers for acpi_device_id
ata: pata_ep93xx: fix PIO fallback when DMA init fails
ata: pata_pxa: use devres for DMA channel management
ata: libata-sff: don't busy-wait for PIO data-in command completion
ata: ahci_da850: use devm_platform_ioremap_resource()
ata: sata_highbank: use devm_platform_ioremap_resource
ata: pata_pxa: use devm_platform_ioremap_resource
ata: pata_rb532_cf: use devm_platform_ioremap_resource()
ata: sata_mv: use devm clock helpers
ata: sata_mv: Use platform_get_irq() to get interrupt
ata: pata_mpc52xx: Remove redundant dev_err()
ata: libata-eh: make ata_eh_qc_complete() and ata_eh_qc_retry() static
ata: libata-scsi: add support for the REMOVE ELEMENT AND MODIFY ZONES command
ata: libata-scsi: add support for the RESTORE ELEMENTS AND REBUILD command
ata: libata-scsi: add support for the REMOVE ELEMENT AND TRUNCATE command
ata: libata-scsi: add support for the GET PHYSICAL ELEMENT STATUS command
ata: libata-core: detect support for depopulation capabilities
ata: libata-scsi: improve ata_get_xlat_func
ata: libata: improve the definition of device flags
scsi: define depopulation capabilities related service actions
...
Ian Bridges <icb@fastmail.org> says:
In preparation for removing the strlcat() API[1], this series replaces
its 81 remaining call sites in the lpfc driver. The sites live in nine
string building functions across five files, and each patch converts
one source file.
Functions that accumulate a variable number of fragments move to
seq_buf. The three sysfs show functions move to sysfs_emit_at(), the
designated helper for sysfs output. lpfc_vport_symbolic_node_name()
builds five fixed fragments and becomes a single scnprintf() call.
The intermediate tmp buffers and the per fragment overflow checks
become unnecessary in every scheme. Each loop that appends keeps one
overflow exit, so a full buffer stops the iteration.
One cross-cutting behavior change applies to several patches. The old
code formatted each fragment into a fixed size tmp buffer before
appending it, so a fragment longer than that buffer was silently
truncated even when the destination had room for it. The replacements
format each fragment directly into the destination. Truncation is
still bounded by the destination size. The per patch changelogs call
out the affected functions.
The patch series was tested as follows. No hardware testing was
done. Testing on real adapters is welcome.
- W=1 builds of the whole driver directory, zero warnings.
- A userspace differential harness. The old and new function bodies
are extracted verbatim from the two trees and compiled side by side
against the real lib/seq_buf.c. 472000 randomized cases across all
nine functions, including oversized inputs, undersized buffers and
prefilled destinations, compared byte for byte under ASan and
UBSan. All outputs are identical except two behavior changes.
Those are the format string interpretation removed in patch 1 and
the fragment cap removal in patch 2. The harness classifies every
observed difference as exactly one of those two.
- A KUnit corpus. The nine functions run as compiled kernel code in a
QEMU guest with KASAN, UBSAN and FORTIFY_SOURCE enabled, against
fabricated adapter state covering both branches of every converted
conditional that is compiled in. The LPFC_MXP_STAT debug block is
disabled at compile time and was build tested with the macro
defined. The same 40 test cases run on the unpatched base and
on this series. The base run matches the old expected outputs, and
the patched run is byte identical everywhere except the two
documented changes.
[1] https://github.com/KSPP/linux/issues/370
Link: https://patch.msgid.link/20260729144617.1388646-1-icb@fastmail.org
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>
In preparation for removing the strlcat() API[1], replace its uses in
lpfc_cmf_info_show(), lpfc_nvme_info_show() and lpfc_scsi_stat_show().
The three functions build sysfs attribute output, and sysfs_emit_at() is
the designated helper for that. The single write paths become
sysfs_emit(), the offset zero form of the same helper. Each intermediate
tmp buffer and its per fragment overflow check become unnecessary. Once
the page is full, sysfs_emit_at() writes nothing more, so dropping the
early exits does not change the produced bytes. Each loop that appends
keeps one exit, so a full page stops the iteration. In
lpfc_nvme_info_show() the exit also releases the fc_nodes_list_lock as
it did before. The unlock_buf_done label loses its last user and is
removed.
The old code capped every fragment at LPFC_MAX_INFO_TMP_LEN or
LPFC_MAX_SCSI_INFO_TMP_LEN bytes before appending it. The replacement
formats each fragment directly into the page, so a fragment longer than
its old tmp buffer is no longer truncated when the page has room for
it. Both macros lose their last user and are removed.
The running length that sysfs_emit_at() maintains equals the length that
the removed strnlen() calls computed, so the "Could be more info"
overflow markers keep their trigger condition.
Link: https://github.com/KSPP/linux/issues/370 [1]
Signed-off-by: Ian Bridges <icb@fastmail.org>
Link: https://patch.msgid.link/20260729144617.1388646-6-icb@fastmail.org
Reviewed-by: Nigel Kirkland <nigel.kirkland@broadcom.com>
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>
In preparation for removing the strlcat() API[1], replace its uses in
lpfc_debugfs_multixripools_data(), lpfc_debugfs_scsistat_data() and
lpfc_debugfs_hdwqstat_data().
Each helper accumulates a variable number of lines into the debugfs
buffer, which is what seq_buf is for. The intermediate tmp buffers and
the per fragment overflow checks become unnecessary. Once a seq_buf
overflows, later writes to it do nothing, so dropping the early exits
does not change the produced bytes. Each loop that appends keeps one
seq_buf_has_overflowed() exit, so a full buffer stops the iteration.
lpfc_debugfs_multixripools_data() and lpfc_debugfs_hdwqstat_data()
append to whatever the buffer already holds, so their seq_buf is
anchored at the current end of the string. All three helpers keep
returning strnlen() because seq_buf_used() reports the full buffer size
after an overflow.
Link: https://github.com/KSPP/linux/issues/370 [1]
Signed-off-by: Ian Bridges <icb@fastmail.org>
Link: https://patch.msgid.link/20260729144617.1388646-5-icb@fastmail.org
Reviewed-by: Nigel Kirkland <nigel.kirkland@broadcom.com>
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>
In preparation for removing the strlcat() API[1], replace its use in
lpfc_rx_monitor_report().
The function accumulates one line per ring entry, which is what seq_buf
is for. seq_buf tracks the write position, so the per entry strlen()
rescans of the destination are gone. Each record is still formatted into
the tmp buffer. seq_buf_puts() appends it only when it fits whole, so
the output keeps ending at the last complete record. The loop still
stops on overflow without consuming the current entry, and the returned
count and the ring head keep their old meaning. The produced bytes are
unchanged.
Link: https://github.com/KSPP/linux/issues/370 [1]
Signed-off-by: Ian Bridges <icb@fastmail.org>
Link: https://patch.msgid.link/20260729144617.1388646-4-icb@fastmail.org
Reviewed-by: Nigel Kirkland <nigel.kirkland@broadcom.com>
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>
In preparation for removing the strlcat() API[1], replace its uses in
lpfc_vport_symbolic_node_name().
The function builds five unconditional fragments, so one scnprintf()
call composes the whole string. The intermediate tmp buffer and the per
fragment overflow checks become unnecessary. scnprintf() truncates at
the buffer size and returns the number of bytes it wrote, which equals
the length that the removed strnlen() call computed.
The old code capped every fragment at MAXHOSTNAMELEN bytes before
appending it, independently of the room left in the destination. The
replacement formats each fragment directly into the destination, so a
fragment longer than MAXHOSTNAMELEN is no longer truncated when the
destination has room for it.
Link: https://github.com/KSPP/linux/issues/370 [1]
Signed-off-by: Ian Bridges <icb@fastmail.org>
Link: https://patch.msgid.link/20260729144617.1388646-3-icb@fastmail.org
Reviewed-by: Nigel Kirkland <nigel.kirkland@broadcom.com>
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>
In preparation for removing the strlcat() API[1], replace its uses in
lpfc_info().
The function accumulates a variable number of optional fragments, which
is what seq_buf is for. The intermediate tmp buffer and the per fragment
overflow checks become unnecessary. seq_buf is memory safe by
construction and silently truncates in the same way as the replaced
pattern.
The old code passed phba->ModelDesc as the format string of the first
scnprintf() call. The model description comes from adapter VPD data.
seq_buf_printf() takes a format string, so the replacement prints it
through "%s". A model description containing conversion specifiers is no
longer interpreted.
Link: https://github.com/KSPP/linux/issues/370 [1]
Signed-off-by: Ian Bridges <icb@fastmail.org>
Link: https://patch.msgid.link/20260729144617.1388646-2-icb@fastmail.org
Reviewed-by: Nigel Kirkland <nigel.kirkland@broadcom.com>
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>
Bart Van Assche <bvanassche@acm.org> says:
Hi Martin,
This patch series enables context analysis for the SCSI core and the UFS
driver. The advantages are as follows:
- The compiler (only Clang) verifies whether the lock and unlock calls match
what has been declared via __must_hold(), __acquires() or __releases().
This is useful for catching locking bugs in error paths.
- Support for __guarded_by() is enabled. If a member variable is annotated
with __guarded_by(lock), the compiler will issue a warning if that member
variable is accessed without holding 'lock'.
Additionally, a patch is included that suppresses KCSAN complaints about SCSI
host state changes.
More information about lock context analysis is available in the cover letter of
[PATCH v5 00/36] Compiler-Based Context- and Locking-Analysis
(https://lore.kernel.org/lkml/20251219154418.3592607-1-elver@google.com/).
Please consider this patch series for the next merge window.
Thanks,
Bart.
Link: https://patch.msgid.link/cover.1786142946.git.bvanassche@acm.org
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>
In the functions scsi_probe_and_add_lun(), scsi_sequential_lun_scan(),
scsi_report_lun_scan() and __scsi_scan_target() the SCSI host pointer is
derived from the SCSI target pointer. Pass the SCSI host pointer
directly.
This patch prepares for enabling context analysis. With this patch applied,
context annotations can refer to the SCSI host pointer directly, e.g.
__must_hold(&shost->scan_mutex). Without this patch, the following
annotation would have to be used:
__must_hold(&dev_to_shost(starget->dev.parent)->scan_mutex)
Additionally, in code that locks shost->scan_mutex, the following would
have to be added to help the compiler understand that shost ==
dev_to_shost(starget->dev.parent):
__assume_ctx_lock(&dev_to_shost(starget->dev.parent)->scan_mutex);
__assume_ctx_lock() statements should be avoided if there is a good
alternative. Hence this patch. No functionality has been changed.
Reviewed-by: John Garry <john.g.garry@oracle.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://patch.msgid.link/49d2fc5fae5cb5dca2536818155581c73f39c883.1786142946.git.bvanassche@acm.org
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>
Introduce sas_dev_is_flutter() and sas_rediscover_ex_phy() to improve
flutter and device replace detection during rediscovery.
sas_dev_is_flutter() calls sas_ex_phy_discover() before looking up the
child device via sas_ex_phy_to_dev(), ensuring the PHY state is always
updated and avoiding use-after-free since the child device pointer is
obtained after the sleeping SMP request completes.
Add validation for linkrate and sas_addr changes. When the SAS address
changes, phy->attached_sas_addr is restored to the original address
before returning false, so sas_unregister_devs_sas_addr() can properly
match and unregister the old device. The sas_addr check is ordered
before the linkrate check to avoid skipping the restoration when both
change simultaneously.
sas_rediscover_ex_phy() uses the async discovery pattern
(sas_discover_event) instead of the synchronous sas_discover_new() to
ensure proper ordering between device unregistration and rediscovery,
avoiding sysfs_warn_dup() errors.
Signed-off-by: Xingui Yang <yangxingui@huawei.com>
Suggested-by: John Garry <john.g.garry@oracle.com>
Link: https://patch.msgid.link/20260811040334.4184911-3-yangxingui@huawei.com
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>
Add sas_ex_phy_to_dev() to return any device type attached to an
expander phy, and refactor sas_ex_to_ata() to use it.
No functional changes intended.
Signed-off-by: Xingui Yang <yangxingui@huawei.com>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Link: https://patch.msgid.link/20260811040334.4184911-2-yangxingui@huawei.com
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>
_base_release_memory_pools() unconditionally frees every
ioc->pcie_sg_lookup[] entry, including ones the setup loop never
allocated after a partial failure, causing a "bad dma" warning on debug
kernels or a NULL pointer dereference otherwise.
Fixes: dbec4c9040 ("scsi: mpt3sas: lockless command submission")
Reported-by: Laurence Oberman <loberman@redhat.com>
Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com>
Link: https://patch.msgid.link/20260808151010.185603-1-chandrakanth.patil@broadcom.com
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>
After commit c3930ec119 ("scsi: qla2xxx: Add FC operational firmware
load for 29xx"), there is a warning due to an incorrect format specifier
for a 'size_t' variable when building for 32-bit platforms, for which
'size_t' is 'unsigned int':
drivers/scsi/qla2xxx/qla_init.c: In function 'qla29xx_process_rd_image':
drivers/scsi/qla2xxx/qla_init.c:9272:74: error: format '%lx' expects argument of type 'long unsigned int', but argument 6 has type 'size_t' {aka 'unsigned int'} [-Werror=format=]
9272 | "TIM section too large (0x%x bytes, ring 0x%lx bytes).\n",
| ~~^
| |
| long unsigned int
| %x
9273 | section_size,
9274 | req->length * qla_req_entry_size(ha));
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| |
| size_t {aka unsigned int}
cc1: all warnings being treated as errors
Use '%zx', the proper 'size_t' format specifier, to clear up the
warning.
Fixes: c3930ec119 ("scsi: qla2xxx: Add FC operational firmware load for 29xx")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://patch.msgid.link/20260811-scsi-qla2xxxx-qla_init-wformat-v1-1-50760021914f@kernel.org
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>
Two minor core fixes: one for power management issues in error handling
and the other to fix a deadlock in door locking of SCSI devices with
removable media; and a minor bug fix for the debug driver.
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:
"Two minor core fixes: one for power management issues in error
handling and the other to fix a deadlock in door locking of SCSI
devices with removable media; and a minor bug fix for the debug
driver"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: scsi_debug: Negate wrapped memcmp() result
scsi: core: Do not block on tag allocation in scsi_eh_lock_door()
scsi: core: pair EH runtime PM get and put
The fnic NVMe/FC code is guarded with IS_ENABLED(CONFIG_NVME_FC). That
also evaluates true when NVME_FC is built as a module.
When fnic is built into vmlinux and NVME_FC=m, fnic_nvme.o still
references the NVMe/FC transport helpers even though those helpers are
not reachable from built-in code. The final vmlinux link then fails with
undefined nvme_fc_* symbols.
Use IS_REACHABLE(CONFIG_NVME_FC) for the fnic NVMe/FC implementation and
prototypes so built-in fnic uses the disabled stubs unless the NVMe/FC
transport is reachable.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202608092246.XZe7Hlrt-lkp@intel.com/
Reviewed-by: Sesidhar Baddela <sebaddel@cisco.com>
Reviewed-by: Arulprabhu Ponnusamy <arulponn@cisco.com>
Reviewed-by: Gian Carlo Boffa <gcboffa@cisco.com>
Reviewed-by: Arun Easi <aeasi@cisco.com>
Signed-off-by: Karan Tilak Kumar <kartilak@cisco.com>
Link: https://patch.msgid.link/20260810110627.4521-1-kartilak@cisco.com
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>
The current comparison err != ERR_ECMDUNKNOWN is useless because err < 0
and ERR_ECMDUNKNOWN == 5. The logic is that if the CMD_CAPABILITY
command was executed, there is no need to respond to unknown errors.
Therefore, the sign of the number in the comparison must be changed.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Signed-off-by: Roman Demidov <roman.demidov.nn@gmail.com>
Reviewed-by: Karan Tilak Kumar <kartilak@cisco.com>
Link: https://patch.msgid.link/20260807091852.13151-1-roman.demidov.nn@gmail.com
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>
During fuzz testing, the following issue was discovered:
BUG: KMSAN: uninit-value in __dma_map_sg_attrs+0x217/0x310
__dma_map_sg_attrs+0x217/0x310
dma_map_sg_attrs+0x4a/0x70
ata_qc_issue+0x9f8/0x1420
__ata_scsi_queuecmd+0x1657/0x1740
ata_scsi_queuecmd+0x79a/0x920
scsi_queue_rq+0x4472/0x4f40
blk_mq_dispatch_rq_list+0x1cca/0x3ee0
__blk_mq_sched_dispatch_requests+0x458/0x630
blk_mq_sched_dispatch_requests+0x15b/0x340
__blk_mq_run_hw_queue+0xe5/0x250
__blk_mq_delay_run_hw_queue+0x138/0x780
blk_mq_run_hw_queue+0x4bb/0x7e0
blk_mq_sched_insert_request+0x2a7/0x4c0
blk_execute_rq+0x497/0x8a0
sg_io+0xbe0/0xe20
scsi_ioctl+0x2b36/0x3c60
sr_block_ioctl+0x319/0x440
blkdev_ioctl+0x80f/0xd70
__se_sys_ioctl+0x219/0x420
__x64_sys_ioctl+0x93/0xe0
x64_sys_call+0x1d6c/0x3ad0
do_syscall_64+0x4c/0xa0
entry_SYSCALL_64_after_hwframe+0x6e/0xd8
Uninit was created at:
__alloc_pages+0x5c0/0xc80
alloc_pages+0xe0e/0x1050
blk_rq_map_user_iov+0x2b77/0x6100
blk_rq_map_user_io+0x2fa/0x4d0
sg_io+0xad6/0xe20
scsi_ioctl+0x2b36/0x3c60
sr_block_ioctl+0x319/0x440
blkdev_ioctl+0x80f/0xd70
__se_sys_ioctl+0x219/0x420
__x64_sys_ioctl+0x93/0xe0
x64_sys_call+0x1d6c/0x3ad0
do_syscall_64+0x4c/0xa0
entry_SYSCALL_64_after_hwframe+0x6e/0xd8
Bytes 14-15 of 16 are uninitialized
Memory access of size 16 starts at ffff88800cbdb000
When processing the last unaligned element of the scatterlist, it is
supplemented with missing bytes in the amount of pad_len. These bytes
remain uninitialized, which leads to a problem.
Extend last_sg->length by pad_len first, then use sg_zero_buffer() to
zero those pad_len bytes. sg_zero_buffer() uses sg_miter internally,
which correctly handles sg entries spanning multiple pages and padding
that crosses a page boundary.
Found by Linux Verification Center (linuxtesting.org) with Syzkaller.
Fixes: 40b01b9bbd ("block: update bio according to DMA alignment padding")
Cc: stable@vger.kernel.org
Signed-off-by: Petr Vaganov <p.vaganov@ideco.ru>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://patch.msgid.link/20260628185229.37957-1-p.vaganov@ideco.ru
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>
fnic_fcoe_process_vlan_resp() allocates a VLAN descriptor with
kzalloc_obj() (default GFP_KERNEL) while holding vlans_lock via
spin_lock_irqsave(). GFP_KERNEL may sleep, which is not allowed in this
atomic context and can trigger a sleeping-from-invalid-context warning
or deadlock.
Pass GFP_ATOMIC so the allocation is safe under the IRQ-safe spinlock.
Fixes: 098585aa8a ("scsi: fnic: Add and integrate support for FIP")
Cc: stable@vger.kernel.org
Signed-off-by: Linkai Gong <gonglinkai@kylinos.cn>
Reviewed-by: Karan Tilak Kumar <kartilak@cisco.com>
Link: https://patch.msgid.link/20260731073820.16449-1-gonglinkai@kylinos.cn
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>
The Fibre Channel transport topology created by storvsc exposes only one
dummy remote port per SCSI host. Its scsi_target_id is always zero.
As a result, the FC transport user-scan path looks up the remote port
using target ID 0. It cannot initiate a scan for Target 1 or higher. No
SCSI command is therefore sent to Hyper-V when userspace explicitly
requests a scan of one of these targets.
storvsc itself supports up to STORVSC_FC_MAX_TARGETS and already passes
scmnd->device->id to Hyper-V as vm_srb->target_id. Devices on Target 1
and higher work when initially discovered. They can also be rediscovered
by a full host scan, such as the scan triggered after an FC port bounce.
Provide a storvsc-specific user_scan callback that uses the exported
scsi_scan_target() interface. Iterate over the requested channel and
target ranges so that wildcard and explicitly addressed scans retain the
expected SCSI sysfs scan semantics.
This bypasses the single-rport lookup in fc_user_scan() and allows
userspace to explicitly scan any target supported by storvsc without
requiring one synthetic fc_rport for every Hyper-V target.
Signed-off-by: Laurence Oberman <loberman@redhat.com>
Link: https://patch.msgid.link/20260723163743.1274830-1-loberman@redhat.com
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>
Only enter the sense_key switch when the command returned CHECK
CONDITION with valid, non-deferred sense. The old condition let deferred
or invalid sense fall through and mis-handle the I/O.
Fixes: 03aba2f795 ("[SCSI] sd/scsi_lib simplify sd_rw_intr and scsi_io_completion")
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Yang Xiuwei <yangxiuwei@kylinos.cn>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://patch.msgid.link/20260707030333.22245-4-yangxiuwei@kylinos.cn
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>
sd_set_special_bvec() allocates a special payload page for UNMAP and
WRITE SAME commands. If scsi_alloc_sgtables() fails afterward in
sd_setup_unmap_cmnd() or sd_setup_write_same{10,16}_cmnd(), the SCSI
midlayer does not call uninit_command() because RQF_DONTPREP is not set
yet, leaking the page.
Call sd_uninit_command() on error, and clear RQF_SPECIAL_PAYLOAD after
freeing the page.
Fixes: 81d926e8b5 ("sd: split sd_setup_discard_cmnd")
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Yang Xiuwei <yangxiuwei@kylinos.cn>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Link: https://patch.msgid.link/20260707030333.22245-3-yangxiuwei@kylinos.cn
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>
After device_add(&sdkp->disk_dev) succeeds, sd_large_pool_create()
failure must unregister disk_dev and let scsi_disk_release() free
sdkp. Going through out_free_index kfree()s an already registered device
and leaks the sysfs entry.
Fixes: 7179e626b7 ("scsi: sd: Enable sector size > PAGE_SIZE in SCSI sd driver")
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Yang Xiuwei <yangxiuwei@kylinos.cn>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Link: https://patch.msgid.link/20260707030333.22245-2-yangxiuwei@kylinos.cn
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>
comp_write_worker() returns true when the compared data matches.
memcmp() returns zero for equal data and non-zero for different data, so
its result must be negated before it is stored in a bool.
The first segment already uses !memcmp(), but the wrapped segment uses
memcmp() directly, reversing the match result. Use !memcmp() there as
well.
Fixes: 38d5c8336e ("scsi_debug: add Report supported opcodes+tmfs; Compare and write")
Cc: stable@vger.kernel.org
Signed-off-by: Xu Rao <raoxu@uniontech.com>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Link: https://patch.msgid.link/E5AD42E9C0E18633+20260803095328.3445311-1-raoxu@uniontech.com
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>
Dongdong Hao <doubled@leap-io-kernel.com> says:
This series adds the LeapRAID driver and its documentation.
This version addresses issues reported by Sashiko and the kernel test
robot, as well as issues identified through internal testing. Because
[PATCH v4 1/2] exceeded the line-count limit of the public Sashiko
service, it was not analyzed. We therefore deployed Sashiko locally
with an increased line-count limit to complete the analysis and have
fixed all identified issues.
Link: https://patch.msgid.link/cover.1785823793.git.doubled@leap-io-kernel.com
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>
The LeapRAID driver provides support for LeapRAID PCIe RAID controllers,
enabling communication between the host operating system, firmware, and
hardware for efficient storage management.
The driver is organized into several logical modules, each with a clear
responsibility:
leapraid_os.c: Integrates with the Linux SCSI subsystem, handling host
template callbacks, PCIe device probing, and initialization.
leapraid_func.c: Contains low-level routines for firmware/hardware
interaction, interrupt handling, and reset logic.
leapraid_app.c: Provides the ioctl interface for user-space tools.
leapraid_transport.c: Manages interactions with the SCSI transport
layer for SAS PHYs and ports.
leapraid_func.h: Contains internal definitions shared among driver
modules.
leapraid.h: Contains low-level hardware definitions for
driver/firmware interaction.
The leapraid_probe() function orchestrates the setup: it allocates the
adapter structure and SCSI host, configures hardware interfaces, and
registers it with the SCSI mid-layer. Following registration,
scsi_scan_host() is invoked to initiate device discovery, with firmware
reporting devices via interrupt-driven events.
This initial commit provides the necessary infrastructure for
subsequent development of full I/O path handling, error recovery,
and advanced management features.
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Hannes Reinecke <hare@kernel.org>
Signed-off-by: Dongdong Hao <doubled@leap-io-kernel.com>
Link: https://patch.msgid.link/0cbc6245aabdc6e8c90587675e76ba316c5b549e.1785823793.git.doubled@leap-io-kernel.com
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>
scsi_eh_lock_door() is called from scsi_restart_operations() while the
host is still in the SHOST_RECOVERY state, i.e. before the host is
switched back to SHOST_RUNNING and scsi_run_host_queues() restarts the
queues. It allocates a request via scsi_alloc_request() with no flags,
so blk_mq_get_tag() may block waiting for a free sched tag when all tags
are already in use.
Those tags can be held by commands that were just requeued by
scsi_eh_flush_done_q() during error handling. Such commands cannot be
dispatched until the host leaves SHOST_RECOVERY and
scsi_run_host_queues() is called - which only happens *after*
scsi_eh_lock_door() returns.
This forms a circular dependency:
- scsi_eh_lock_door(), running in the SCSI error handler thread, waits
for a sched tag held by a requeued command;
- the requeued command cannot complete and release its sched tag until
the error handler thread leaves scsi_restart_operations() and restart
the queues.
For devices with a single driver tag (e.g. USB storage) it is a
guaranteed deadlock and I/O that can never be submitted. This problem
has also been reproduced in our environment.
Locking the door is a best-effort operation, and scsi_eh_lock_door()
already returns silently when the request allocation fails. Pass
BLK_MQ_REQ_NOWAIT to scsi_alloc_request() so the allocation fails
instead of blocking when no tag is available. This breaks the circular
dependency and allows the error handler to finish restarting the queues,
after which the pending commands are dispatched normally.
Signed-off-by: Zizhi Wo <wozizhi@huawei.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://patch.msgid.link/20260723041238.1584632-1-wozizhi@huaweicloud.com
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>
shost->eh_noresume is currently consulted twice in one error handling
iteration: once before scsi_autopm_get_host() and once again before
scsi_autopm_put_host().
That is racy when a PM-triggered error path flips shost->eh_noresume
while the SCSI EH thread is still running.
The problem flow looks like this:
PM path
ufshcd_set_dev_pwr_mode()
shost->eh_noresume = 1
ufshcd_execute_start_stop <-- trigger EH
...
shost->eh_noresume = 0
EH path
scsi_error_handler()
if (!shost->eh_noresume)
scsi_autopm_get_host() <-- skipped
...
if (!shost->eh_noresume)
scsi_autopm_put_host() <-- executed later
In that case one EH iteration can skip autoresume on entry and still
drop a runtime PM reference on exit. That leaves an unmatched runtime PM
put and can trigger a runtime PM usage count underflow.
Fix this by making eh_noresume a regular bool so it can be accessed with
READ_ONCE() and WRITE_ONCE(). Snapshot it once per EH iteration and use
that snapshot for both runtime PM get and put decisions.
Fixes: ae0751ffc7 ("[SCSI] add flag to skip the runtime PM calls on the host")
Signed-off-by: Hongjie Fang <hongjiefang@asrmicro.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Peter Wang <peter.wang@mediatek.com>
Link: https://patch.msgid.link/20260729111614.2407559-1-hongjiefang@asrmicro.com
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>
Nilesh Javali <njavali@marvell.com> says:
This series collects bug fixes, hardening, and small cleanups for the
qla2xxx driver that are independent of the QLA29xx adapter enablement.
Most were uncovered by static analysis and fuzzing of the driver's
interrupt, mailbox, NVMe, and BSG paths; 30 of the 33 patches carry a
Fixes: tag and are marked for stable.
The series is organised as follows:
Queue pairs, MSI-X, and interrupt setup/teardown
Clamp MSI-X derived queue counts to avoid truncation, fix a
use-after-free of qpair work on queue teardown, and quiesce the
response IRQ before freeing the request queue.
Firmware dump, FCE trace, and flash/version paths
Improve firmware dump data capture, serialize the flash version read in
the reset handler, clarify the MPI optrom address/length units, fix FCE
trace enable parsing in debugfs, and fix a use-after-free of the FCE
trace during a firmware dump.
Probe and mailbox paths
Fix the cs84xx use-after-free on host teardown, don't query firmware
state while the chip is down, zero the mailbox struct in
qla2x00_get_firmware_state(), and null out freed pointers in the
qla2x00_mem_alloc() error path.
Response/status IOCB path
Use memset_io() to clear the QLAFX00 request ring slot, fix response
queue over-consumption in __qla_consume_iocb(), fix a soft lockup in
the polling continuation IOCB signature, bound rsp_info_len to avoid an
out-of-bounds sense-data read, avoid a req_q_map double-read in
qla2x00_error_entry(), and reject non-SCSI SRBs on the status IOCB fast
path.
NPIV and report-ID acquisition
Clamp max_npiv_vports to the VP_CTRL bitmap capacity, avoid a double
completion on async IOCB timeout, and correct vport
handling in report ID acquisition (skip a vport under deletion, drop
the vport reference under lock, and hold vport_slock for the host map
update).
NVMe LS and abort handling
Fix an abort reference leak on repeated abort, skip the NVMe LS reject
IOCB when firmware is not started, unlink the unsolicited context
before freeing on the LS reject error path, and serialize the
unsolicited context list with a per-fcport lock.
BSG passthrough hardening
Use a coherent DMA buffer for D_Port diagnostics, zero-init bsg stack
buffers and the SFP DMA buffer to avoid information leaks, validate the
BSG request_len before reading vendor_cmd[], and bound i2c->length in
the I2C bsg handlers.
The final patch bumps the driver version to 12.00.00.2607b2.
The series applies on top of the qla2xxx QLA29xx series (v6, 56 patches)
on Linux 7.2-rc1.
Link: https://patch.msgid.link/20260730155838.2119230-1-njavali@marvell.com
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>
Nilesh Javali <njavali@marvell.com> says:
Add support for the QLA29xx generation of Marvell QLogic Fibre Channel
HBAs (ISP2091/ISP2291/ISP2099/ISP2299). The 29xx family shares much of
its architecture with the existing 27xx/28xx adapters but introduces
128-byte request and response ring entries (up from 64 bytes), requiring
extended IOCB definitions and updated ring management throughout the
driver.
The key hardware change is the wider IOCB format: every request and
response queue entry is now 128 bytes. This propagates into every code
path that builds, submits, or processes IOCBs -- command submission,
status completion, marker, CT pass-through, ELS, logio, task management,
abort, ABTS, VP control, and NVMe.
The series is organised as follows:
Patches 01-08: Foundation and flash/firmware infrastructure
PCI device ID registration, ISP-flags wiring, flash read/write
interface, NVRAM configuration, queue initialisation, FC operational
firmware load, removal of a redundant VPD flash read in the sysfs read
path, and BSG passthrough (flash block I/O, MPI firmware load/dump).
Patches 09-11: 128-byte IOCB infrastructure
New qla_fw29.h header with extended structure definitions, status
continuation and marker IOCBs, and IO-path updates that select the
correct IOCB size via the entry-size helpers.
Patches 12-24: Sysfs, mailbox commands, and core enablement
Sysfs attribute gating for unsupported 29xx features, mailbox command
enablement (get_fw_version, execute_fw, get_adapter_id, init_firmware,
get_firmware_state, serdes, ELS, echo_test, data rate), shutdown path,
ring-slot helpers, and memory allocation updates.
Patches 25-39: Response-path IOCB handling and final wiring
Status continuation, status entry, CT pass-through, PUREX, ELS, logio,
task management, abort, ABTS, VP control/config/report-ID, LS4
pass-through, and BSG feature gating adjustments.
Patches 40-55: bug fixes uncovered during review of the earlier postings
-- queue teardown NULL dma_free and bitmap locking, endianness/bitfield
cleanups, 64-bit FPM word counters, 64G/128G port speed setting and
reporting, an edif NULL deref, Name Server logout detection on FWI2
adapters, VP index bounds, NVMe abort and LS-reject locking, a dport
diagnostics info leak, a BSG job leak, and an unbounded FRU image count.
Patch 56: bump the driver version to 12.00.00.2607b1.
The series applies on top of Linux 7.2-rc1.
Thanks,
Nilesh
[mkp: Resolve merge conflict]
Link: https://patch.msgid.link/20260723050413.3897522-1-njavali@marvell.com
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>
