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1,447,411 commits

Author SHA1 Message Date
Julia Lawall
499ea377ed optee: update outdated comment
The function cmd_alloc_suppl() was renamed as
optee_rpc_cmd_alloc_suppl() in commit c51a564a5b
("optee: isolate smc abi").  Update the comment
accordingly.

Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Reviewed-by: Sumit Garg <sumit.garg@oss.qualcomm.com>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
2026-01-05 10:34:28 +01:00
Brendan Jackman
9efb74f84b x86/sev: Disable GCOV on noinstr object
With Debian clang version 19.1.7 (3+build5) there are calls to
kasan_check_write() from __sev_es_nmi_complete(), which violates noinstr.  Fix
it by disabling GCOV for the noinstr object, as has been done for previous
such instrumentation issues.

Note that this file already disables __SANITIZE_ADDRESS__ and
__SANITIZE_THREAD__, thus calls like kasan_check_write() ought to be nops
regardless of GCOV. This has been fixed in other patches. However, to avoid
any other accidental instrumentation showing up, (and since, in principle GCOV
is instrumentation and hence should be disabled for noinstr code anyway),
disable GCOV overall as well.

Signed-off-by: Brendan Jackman <jackmanb@google.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Acked-by: Marco Elver <elver@google.com>
Link: https://patch.msgid.link/20251216-gcov-inline-noinstr-v3-3-10244d154451@google.com
2026-01-05 10:22:48 +01:00
Krzysztof Kozlowski
1c05d9a4ca tee: qcomtee: user: Fix confusing cleanup.h syntax
Initializing automatic __free variables to NULL without need (e.g.
branches with different allocations), followed by actual allocation is
in contrary to explicit coding rules guiding cleanup.h:

"Given that the "__free(...) = NULL" pattern for variables defined at
the top of the function poses this potential interdependency problem the
recommendation is to always define and assign variables in one statement
and not group variable definitions at the top of the function when
__free() is used."

Code does not have a bug, but is less readable and uses discouraged
coding practice, so fix that by moving declaration to the place of
assignment.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Reviewed-by: Amirreza Zarrabi <amirreza.zarrabi@oss.qualcomm.com>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
2026-01-05 10:21:09 +01:00
Krzysztof Kozlowski
7c4c14ad3d tee: qcomtee: mem: Fix confusing cleanup.h syntax
Initializing automatic __free variables to NULL without need (e.g.
branches with different allocations), followed by actual allocation is
in contrary to explicit coding rules guiding cleanup.h:

"Given that the "__free(...) = NULL" pattern for variables defined at
the top of the function poses this potential interdependency problem the
recommendation is to always define and assign variables in one statement
and not group variable definitions at the top of the function when
__free() is used."

Code does not have a bug, but is less readable and uses discouraged
coding practice, so fix that by moving declaration to the place of
assignment.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Reviewed-by: Amirreza Zarrabi <amirreza.zarrabi@oss.qualcomm.com>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
2026-01-05 10:21:09 +01:00
Krzysztof Kozlowski
4cc19518da tee: qcomtee: call: Fix confusing cleanup.h syntax
Initializing automatic __free variables to NULL without need (e.g.
branches with different allocations), followed by actual allocation is
in contrary to explicit coding rules guiding cleanup.h:

"Given that the "__free(...) = NULL" pattern for variables defined at
the top of the function poses this potential interdependency problem the
recommendation is to always define and assign variables in one statement
and not group variable definitions at the top of the function when
__free() is used."

Code does not have a bug, but is less readable and uses discouraged
coding practice, so fix that by moving declaration to the place of
assignment.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Reviewed-by: Amirreza Zarrabi <amirreza.zarrabi@oss.qualcomm.com>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
2026-01-05 10:21:09 +01:00
Tony Luck
ad5c2ff75e fs/resctrl: Split L3 dependent parts out of __mon_event_count()
Carve out the L3 resource specific event reading code into a separate helper
to support reading event data from a new monitoring resource.

Suggested-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Link: https://lore.kernel.org/20251217172121.12030-1-tony.luck@intel.com
2026-01-05 10:18:33 +01:00
Bartosz Golaszewski
98d78c06f5 gpio: swnode: restore the name of the undefined software node
Commit 6774a66d0e ("gpio: swnode: compare the "undefined" swnode by
its address, not name") switched to comparing the software nodes by
address instead of names but it's still useful to keep the name of the
node to expose the relevant information over sysfs. Restore the
human-readable name.

Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Closes: https://lore.kernel.org/all/aVFsjSIwrBw7tFLU@smile.fi.intel.com/
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20260102093349.17822-1-bartosz.golaszewski@oss.qualcomm.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
2026-01-05 10:12:25 +01:00
Leon Romanovsky
325e3b5431 RDMA/ocrdma: Remove unused OCRDMA_UVERBS definition
The OCRDMA_UVERBS() macro is unused, so remove it to clean up the code.

Link: https://patch.msgid.link/20260104-ib-core-misc-v1-6-00367f77f3a8@nvidia.com
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
2026-01-05 04:04:01 -05:00
Leon Romanovsky
cc016ebeb1 RDMA/qedr: Remove unused defines
Perform basic cleanup by removing unused defines from qedr.h.

Link: https://patch.msgid.link/20260104-ib-core-misc-v1-5-00367f77f3a8@nvidia.com
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
2026-01-05 04:03:46 -05:00
Jocelyn Falempe
91ce41427d drm/panic: Add kunit tests for drm_panic
Add kunit tests for drm_panic.
They check that drawing the panic screen doesn't crash, but they
don't check the correctness of the resulting image.

Reviewed-by: Maxime Ripard <mripard@kernel.org>
Link: https://patch.msgid.link/20251216082524.115980-3-jfalempe@redhat.com
Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
2026-01-05 10:03:41 +01:00
Leon Romanovsky
522a5c1c56 RDMA/mlx5: Avoid direct access to DMA device pointer
The dma_device field is marked as internal and must not be accessed by
drivers or ULPs. Remove all direct mlx5 references to this field.

Link: https://patch.msgid.link/20260104-ib-core-misc-v1-4-00367f77f3a8@nvidia.com
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
2026-01-05 04:02:51 -05:00
Maher Sanalla
6dc78c53de RDMA/mlx5: Fix ucaps init error flow
In mlx5_ib_stage_caps_init(), if mlx5_ib_init_ucaps() fails after
mlx5_ib_init_var_table() succeeds, the VAR bitmap is leaked since
the function returns without cleanup.

Thus, cleanup the var table bitmap in case of error of initializing
ucaps before exiting, preventing the leak above.

Fixes: cf7174e898 ("RDMA/mlx5: Create UCAP char devices for supported device capabilities")
Signed-off-by: Maher Sanalla <msanalla@nvidia.com>
Reviewed-by: Yishai Hadas <yishaih@nvidia.com>
Link: https://patch.msgid.link/20260104-ib-core-misc-v1-3-00367f77f3a8@nvidia.com
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2026-01-05 04:02:40 -05:00
Parav Pandit
8d466b155f RDMA/core: Avoid exporting module local functions and remove not-used ones
Some of the functions are local to the module and some are not used
starting from commit 36783dec8d ("RDMA/rxe: Delete deprecated module
parameters interface"). Delete and avoid exporting them.

Signed-off-by: Parav Pandit <parav@nvidia.com>
Link: https://patch.msgid.link/20260104-ib-core-misc-v1-2-00367f77f3a8@nvidia.com
Reviewed-by: Zhu Yanjun <yanjun.zhu@linux.dev>
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2026-01-05 04:02:29 -05:00
Leon Romanovsky
ac7dea328a RDMA/umem: Remove redundant DMABUF ops check
ib_umem_dmabuf_get_with_dma_device() is an in-kernel function and does
not require a defensive check for the .move_notify callback. All current
callers guarantee that this callback is always present.

Link: https://patch.msgid.link/20260104-ib-core-misc-v1-1-00367f77f3a8@nvidia.com
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
2026-01-05 04:02:18 -05:00
Jocelyn Falempe
5555a30749 drm/panic: Rename draw_panic_static_* to draw_panic_screen_*
I called them "static" because the panic screen is drawn only once,
but this can be confused with the static meaning in C.
Also remove some unnecessary braces in draw_panic_dispatch().
No functionnal change.

Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patch.msgid.link/20251216082524.115980-2-jfalempe@redhat.com
Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
2026-01-05 09:59:13 +01:00
Krzysztof Kozlowski
72b3943028 dt-bindings: PCI: qcom,pcie-apq8084: Move APQ8084 to dedicated schema
Move APQ8084 PCIe devices from qcom,pcie.yaml binding to a dedicated
file to make reviewing and maintenance easier.

New schema is equivalent to the old one with few changes:
 - Adding a required compatible, which is actually redundant.
 - Drop the really obvious comments next to clock/reg/reset-names items.

After moving the qcom,pcie.yaml becames empty thus can be entirely
removed.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20251217-dt-bindings-pci-qcom-v2-12-873721599754@oss.qualcomm.com
2026-01-05 14:13:26 +05:30
Krzysztof Kozlowski
0eaa8d1c36 dt-bindings: PCI: qcom,pcie-msm8996: Move MSM8996 to dedicated schema
Move MSM8996 PCIe devices from qcom,pcie.yaml binding to a dedicated
file to make reviewing and maintenance easier.

New schema is equivalent to the old one with few changes:
 - Adding a required compatible, which is actually redundant.
 - Drop the really obvious comments next to clock/reg/reset-names items.
 - Expecting eight MSI interrupts and one global, instead of only one,
   which was incomplete hardware description.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20251217-dt-bindings-pci-qcom-v2-11-873721599754@oss.qualcomm.com
2026-01-05 14:13:18 +05:30
Krzysztof Kozlowski
b673d06ea8 dt-bindings: PCI: qcom,pcie-apq8064: Move APQ8064 to dedicated schema
Move APQ8064 and IPQ8064 PCIe devices from qcom,pcie.yaml binding to a
dedicated file to make reviewing and maintenance easier.

New schema is equivalent to the old one with few changes:
 - Adding a required compatible, which is actually redundant.
 - Drop the really obvious comments next to clock/reg/reset-names items.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20251217-dt-bindings-pci-qcom-v2-10-873721599754@oss.qualcomm.com
2026-01-05 14:13:12 +05:30
Krzysztof Kozlowski
5e8bf1c1d5 dt-bindings: PCI: qcom,pcie-ipq9574: Move IPQ9574 to dedicated schema
Move IPQ9574 and compatible PCIe devices from qcom,pcie.yaml binding to
a dedicated file to make reviewing and maintenance easier.

New schema is equivalent to the old one with few changes:
 - Adding a required compatible, which is actually redundant.
 - Drop the really obvious comments next to clock/reg/reset-names items.
 - Make last "reg" entry "mhi" a required one, because all in-tree DTS
   were updated to include it.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20251217-dt-bindings-pci-qcom-v2-9-873721599754@oss.qualcomm.com
2026-01-05 14:13:06 +05:30
Krzysztof Kozlowski
769f6826d5 dt-bindings: PCI: qcom,pcie-ipq4019: Move IPQ4019 to dedicated schema
Move IPQ4019 PCIe devices from qcom,pcie.yaml binding to a dedicated
file to make reviewing and maintenance easier.

New schema is equivalent to the old one with few changes:
 - Adding a required compatible, which is actually redundant.
 - Drop the really obvious comments next to clock/reg/reset-names items.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20251217-dt-bindings-pci-qcom-v2-8-873721599754@oss.qualcomm.com
2026-01-05 14:13:00 +05:30
Krzysztof Kozlowski
edf1701c86 dt-bindings: PCI: qcom,pcie-ipq8074: Move IPQ8074 to dedicated schema
Move IPQ8074 PCIe devices from qcom,pcie.yaml binding to a dedicated
file to make reviewing and maintenance easier.

New schema is equivalent to the old one with few changes:
 - Adding a required compatible, which is actually redundant.
 - Drop the really obvious comments next to clock/reg/reset-names items.
 - Expecting eight MSI interrupts and one global, instead of only one,
   which was incomplete hardware description.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20251217-dt-bindings-pci-qcom-v2-7-873721599754@oss.qualcomm.com
2026-01-05 14:12:51 +05:30
Krzysztof Kozlowski
06f4ac1f76 dt-bindings: PCI: qcom,pcie-ipq6018: Move IPQ6018 and IPQ8074 Gen3 to dedicated schema
Move IPQ6018 and IPQ8074 Gen3 (which is the same as in IPQ6018) PCIe
devices from qcom,pcie.yaml binding to a dedicated file to make
reviewing and maintenance easier.

New schema is equivalent to the old one with few changes:
 - Adding a required compatible, which is actually redundant.
 - Drop the really obvious comments next to clock/reg/reset-names items.
 - Disallow legacy/incomplete description with only one interrupt and
   expect exactly nine of them.
 - Do not require power domains on IPQ6018, because old binding already
   does not require them for IPQ8074 Gen3, devices are the same and
   in-tree DTS lacks power domains.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20251217-dt-bindings-pci-qcom-v2-6-873721599754@oss.qualcomm.com
2026-01-05 14:12:41 +05:30
Krzysztof Kozlowski
7366e19379 dt-bindings: PCI: qcom,pcie-ipq5018: Move IPQ5018 to dedicated schema
Move IPQ5018 PCIe devices from qcom,pcie.yaml binding to a dedicated
file to make reviewing and maintenance easier.

New schema is equivalent to the old one with few changes:
 - Adding a required compatible, which is actually redundant.
 - Drop the really obvious comments next to clock/reg/reset-names items.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20251217-dt-bindings-pci-qcom-v2-5-873721599754@oss.qualcomm.com
2026-01-05 14:12:30 +05:30
Krzysztof Kozlowski
78aa7d0d9b dt-bindings: PCI: qcom,pcie-qcs404: Move QCS404 to dedicated schema
Move QCS404 PCIe devices from qcom,pcie.yaml binding to a dedicated file
to make reviewing and maintenance easier.

New schema is equivalent to the old one with few changes:
 - Adding a required compatible, which is actually redundant.
 - Drop the really obvious comments next to clock/reg/reset-names items.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20251217-dt-bindings-pci-qcom-v2-4-873721599754@oss.qualcomm.com
2026-01-05 14:12:20 +05:30
Krzysztof Kozlowski
c80dc8121d dt-bindings: PCI: qcom,pcie-sdm845: Move SDM845 to dedicated schema
Move SDM845 PCIe devices from qcom,pcie.yaml binding to a dedicated file
to make reviewing and maintenance easier.

New schema is equivalent to the old one with few changes:
 - Adding a required compatible, which is actually redundant.
 - Drop the really obvious comments next to clock/reg/reset-names items.
 - Expecting eight MSI interrupts and one global, instead of only one,
   which was incomplete hardware description.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20251217-dt-bindings-pci-qcom-v2-3-873721599754@oss.qualcomm.com
2026-01-05 14:12:13 +05:30
Krzysztof Kozlowski
c86e1f39f6 dt-bindings: PCI: qcom,pcie-sdx55: Move SDX55 to dedicated schema
Move SDX55 PCIe devices from qcom,pcie.yaml binding to a dedicated file
to make reviewing and maintenance easier.

New schema is equivalent to the old one with few changes:
 - Adding a required compatible, which is actually redundant.
 - Drop the really obvious comments next to clock/reg/reset-names items.
 - Adding interrupts based on the DTS, which were missing in the
   all-in-one binding.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20251217-dt-bindings-pci-qcom-v2-2-873721599754@oss.qualcomm.com
2026-01-05 14:11:59 +05:30
Krzysztof Kozlowski
b73d6672eb dt-bindings: PCI: qcom,pcie-sm8150: Merge SC8180x into SM8150
After the commit 26daa18e35 ("dt-bindings: PCI: qcom,pcie-sc8180x:
Drop unrelated clocks from PCIe hosts") and the
commit e1cb67ab82 ("dt-bindings: PCI: qcom,pcie-sm8150: Drop unrelated
clocks from PCIe hosts"), which dropped two clocks from each of the
bindings, the devices share entire binding and could be kept in one file
for simplicity.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20251217-dt-bindings-pci-qcom-v2-1-873721599754@oss.qualcomm.com
2026-01-05 14:11:35 +05:30
Suraj Kandpal
b3aa676928 drm/i915/ltphy: Provide protection against unsupported modes
We need to make sure we return some port clock in case we have
unsupported LT PHY modes or if we were not able to read the LT PHY state
for whatever reason and the mode ends up being 0.

Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Link: https://patch.msgid.link/20260105055937.136522-3-suraj.kandpal@intel.com
2026-01-05 13:50:59 +05:30
Suraj Kandpal
73b506e6aa drm/i915/ltphy: Compare only certain fields in state verify function
Verify only the config[0,2] fields in the LT PHY state since these
are the only reliable values we can get back when we read the VDR
registers. The reason being that the state does not persist for other
VDR registers when power gating comes into picture.
Though not ideal this change does not hit us badly in perspective of how
we use the compare function to decide if fastset is required or if we
wrote the state correctly. VDR0_CONFIG and VDR1_CONFIG hold the values
that indicate the PLL operating mode and link rate which is usually
what we need to check if something has changed or not.

Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Link: https://patch.msgid.link/20260105055937.136522-2-suraj.kandpal@intel.com
2026-01-05 13:50:58 +05:30
Suraj Kandpal
c7830b51c7 drm/i915/ltphy: Remove state verification for LT PHY fields
Currently we do state verification for all VDR Registers.
Remove LT PHY State verification for all VDR register fields other
than VDR0_CONFIG and VDR2_CONFIG. The reason being that VDR0_CONFIG
and VDR2_CONFIG are the only reliable shadow register which hold onto
their values over the course of power gatings which happen internally
due to features like PSR/PR.

Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Link: https://patch.msgid.link/20260105055937.136522-1-suraj.kandpal@intel.com
2026-01-05 13:50:57 +05:30
Peter Zijlstra
ff5860f508 perf: Ensure swevent hrtimer is properly destroyed
With the change to hrtimer_try_to_cancel() in
perf_swevent_cancel_hrtimer() it appears possible for the hrtimer to
still be active by the time the event gets freed.

Make sure the event does a full hrtimer_cancel() on the free path by
installing a perf_event::destroy handler.

Fixes: eb3182ef04 ("perf/core: Fix system hang caused by cpu-clock usage")
Reported-by: CyberUnicorns <a101e_iotvul@163.com>
Tested-by: CyberUnicorns <a101e_iotvul@163.com>
Debugged-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
2026-01-05 08:55:54 +01:00
Or Har-Toov
aaecff5e13 RDMA/mlx5: Implement query_port_speed callback
Implement the query_port_speed callback for mlx5 driver to support
querying effective port bandwidth.

For LAG configurations, query the aggregated speed from the LAG layer
or from the modified vport max_tx_speed.

Signed-off-by: Or Har-Toov <ohartoov@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Edward Srouji <edwards@nvidia.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2026-01-05 02:43:17 -05:00
Or Har-Toov
3fd984d5cd RDMA/mlx5: Raise async event on device speed change
Raise IB_EVENT_DEVICE_SPEED_CHANGE whenever the speed of one of the
device's ports changes. Usually all ports of the device changes
together.

This ensures user applications and upper-layer software are immediately
notified when bandwidth changes, improving traffic management in dynamic
environments. This is especially useful for vports which are part of a
LAG configuration, to know if the effective speed of the LAG was
changed.

Signed-off-by: Or Har-Toov <ohartoov@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Edward Srouji <edwards@nvidia.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2026-01-05 02:43:12 -05:00
Or Har-Toov
51a07ce2fe IB/core: Add query_port_speed verb
Add new ibv_query_port_speed() verb to enable applications to query
the effective bandwidth of a port.

This verb is particularly useful when the speed is not a multiplication
of IB speed and width where width is 2^n.

Signed-off-by: Or Har-Toov <ohartoov@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Edward Srouji <edwards@nvidia.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2026-01-05 02:43:05 -05:00
Or Har-Toov
d4adeff26c IB/core: Refactor rate_show to use ib_port_attr_to_rate()
Update sysfs rate_show() to rely on ib_port_attr_to_speed_info() for
converting IB port speed and width attributes to data rate and speed
string.

Signed-off-by: Or Har-Toov <ohartoov@nvidia.com>
Reviewed-by: Maher Sanalla <msanalla@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Edward Srouji <edwards@nvidia.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2026-01-05 02:42:59 -05:00
Or Har-Toov
2941abac6d IB/core: Add helper to convert port attributes to data rate
Introduce ib_port_attr_to_rate() to compute the data rate in 100 Mbps
units (deci-Gb/sec) from a port's active_speed and active_width
attributes. This generic helper removes duplicated speed-to-rate
calculations, which are used by sysfs and the upcoming new verb.

Signed-off-by: Or Har-Toov <ohartoov@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Edward Srouji <edwards@nvidia.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2026-01-05 02:42:53 -05:00
Or Har-Toov
263d1d9975 IB/core: Add async event on device speed change
Add IB_EVENT_DEVICE_SPEED_CHANGE for notifying user applications on
device's ports speed changes.

Signed-off-by: Or Har-Toov <ohartoov@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Edward Srouji <edwards@nvidia.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2026-01-05 02:42:43 -05:00
Leon Romanovsky
976cc7ac12 Support effective VF bandwidth query in LAG mode
Currently, mlx5 driver exposes only the parent function's speed to VFs,
providing no way to query the actual effective bandwidth in LAG and
MPESW configurations. This limitation prevents userspace and
upper-layer software from obtaining accurate bandwidth information,
which impacts traffic scheduling decisions.

This series addresses this by:

1. Adding mlx5 internal logic to calculate and propagate the effective
   aggregated LAG speed to all attached vports. The vport speeds are
   dynamically updated when LAG member link states change.

2. Extending RDMA core with a new ib_query_port_speed() verb and an
   IB_EVENT_DEVICE_SPEED_CHANGE async event. These interfaces expose
   the effective port speed to userspace, supporting speeds that are
   not expressible as IB speed * width (where width is 2^n).

This series enables userspace applications to query the effective
port speed and receive notifications on speed changes in real-time.
In LAG configurations, each mlx5 port reports the aggregated bandwidth
of all active LAG members.

Signed-off-by: Leon Romanovsky <leon@kernel.org>
2026-01-05 02:39:29 -05:00
Or Har-Toov
f0b2fde980 net/mlx5: Add support for querying bond speed
Add mlx5_lag_query_bond_speed() to query the aggregated speed of
lag configurations with a bond device.

Signed-off-by: Or Har-Toov <ohartoov@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Edward Srouji <edwards@nvidia.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2026-01-05 02:38:44 -05:00
Or Har-Toov
28ea6036da net/mlx5: Handle port and vport speed change events in MPESW
Add port change event handling logic for MPESW LAG mode, ensuring
VFs are updated when the speed of LAG physical ports changes.
This triggers a speed update workflow when relevant port state changes
occur, enabling consistent and accurate reporting of VF bandwidth.

Signed-off-by: Or Har-Toov <ohartoov@nvidia.com>
Reviewed-by: Maher Sanalla <msanalla@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Edward Srouji <edwards@nvidia.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2026-01-05 02:38:25 -05:00
Or Har-Toov
50f1d188c5 net/mlx5: Propagate LAG effective max_tx_speed to vports
Currently, vports report only their parent's uplink speed, which in LAG
setups does not reflect the true aggregated bandwidth. This makes it
hard for upper-layer software to optimize load balancing decisions
based on accurate bandwidth information.

Fix the issue by calculating the possible maximum speed of a LAG as
the sum of speeds of all active uplinks that are part of the LAG.
Propagate this effective max speed to vports associated with the LAG
whenever a relevant event occurs, such as physical port link state
changes or LAG creation/modification.

With this change, upper-layer components receive accurate bandwidth
information corresponding to the active members of the LAG and can
make better load balancing decisions.

Signed-off-by: Or Har-Toov <ohartoov@nvidia.com>
Reviewed-by: Maher Sanalla <msanalla@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Edward Srouji <edwards@nvidia.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2026-01-05 02:38:17 -05:00
Or Har-Toov
3df5dd46fc net/mlx5: Add max_tx_speed and its CAP bit to IFC
Introduce the max_tx_speed field to the query and modify_vport_state
structures.

Add the esw_vport_state_max_tx_speed capability bit, indicating
the firmware support modifying the max_tx_speed field via the
MODIFY_VPORT_STATE command.

Signed-off-by: Or Har-Toov <ohartoov@nvidia.com>
Reviewed-by: Maher Sanalla <msanalla@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Edward Srouji <edwards@nvidia.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2026-01-05 02:37:43 -05:00
Krzysztof Kozlowski
549a1be5ce OPP: of: Simplify with scoped for each OF child loop
Use scoped for-each loop when iterating over device nodes to make code a
bit simpler.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2026-01-05 10:41:18 +05:30
Dave Airlie
c4f2ae5386 DRM Rust fixes for v6.19-rc4
MAINTAINERS:
   - Fix Nova GPU driver git links.
   - Fix typo in TYR driver entry preventing correct behavior of
     scripts/get_maintainer.pl.
   - Exclude TYR driver from DRM MISC.
 
 Nova Core:
   - Correctly select RUST_FW_LOADER_ABSTRACTIONS to prevent build
     errors.
   - Regenerate nova-core bindgen bindings with '--explicit-padding' to
     avoid uninitialized bytes.
   - Fix length of received GSP messages, due to miscalculated message
     payload size.
   - Regenerate bindings to derive MaybeZeroable.
   - Use a bindings alias to derive the firmware version.
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYKAB0WIQS2q/xV6QjXAdC7k+1FlHeO1qrKLgUCaVKmRwAKCRBFlHeO1qrK
 LoMTAQDYwgJKxyoKkxY6cRXdWkxDNCueEhu4JUuaCZ4x3DAdZQD6AzrPdaQ08cTn
 FUpyXS4aM7AtbOSHzM6wMm7kH6pGqgc=
 =us3l
 -----END PGP SIGNATURE-----

Merge tag 'drm-rust-fixes-2025-12-29' of https://gitlab.freedesktop.org/drm/rust/kernel into drm-fixes

DRM Rust fixes for v6.19-rc4

MAINTAINERS:
  - Fix Nova GPU driver git links.
  - Fix typo in TYR driver entry preventing correct behavior of
    scripts/get_maintainer.pl.
  - Exclude TYR driver from DRM MISC.

Nova Core:
  - Correctly select RUST_FW_LOADER_ABSTRACTIONS to prevent build
    errors.
  - Regenerate nova-core bindgen bindings with '--explicit-padding' to
    avoid uninitialized bytes.
  - Fix length of received GSP messages, due to miscalculated message
    payload size.
  - Regenerate bindings to derive MaybeZeroable.
  - Use a bindings alias to derive the firmware version.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: "Danilo Krummrich" <dakr@kernel.org>
Link: https://patch.msgid.link/DFATYVSQRQ4W.1R030NZ34XUZK@kernel.org
2026-01-05 14:45:33 +10:00
Trond Myklebust
3f77eda548 NFSv4: Don't free slots prematurely if requesting a directory delegation
When requesting a directory delegation, it is imperative to hold the
slot until the delegation state has been recorded. Otherwise, if a
recall comes in, the call to referring_call_exists() will assume the
processing is done, and when it doesn't find a delegation, it will
assume it has been returned.

Fixes: 156b094829 ("NFS: Request a directory delegation on ACCESS, CREATE, and UNLINK")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2026-01-04 23:03:26 -05:00
Trond Myklebust
105c2db247 NFSv4: Fix nfs_clear_verifier_delegated() for delegated directories
If the client returns a directory delegation, then look up all the child
dentries, and clear their 'verifier delegated' bit, unless subject to a
file delegation.

Similarly, if a file delegation is being returned, check if there is a
directory delegation before clearing a 'verifier delegated' bit.

Reported-by: Christoph Hellwig <hch@lst.de>
Fixes: 156b094829 ("NFS: Request a directory delegation on ACCESS, CREATE, and UNLINK")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2026-01-04 23:03:26 -05:00
Anna Schumaker
6f9bda2337 NFS: Fix directory delegation verifier checks
Doing this check in nfs_check_verifier() resulted in many, many more
lookups on the wire when running Christoph's delegation benchmarking
script. After some experimentation, I found that we can treat directory
delegations exactly the same as having a delegated verifier when we
reach nfs4_lookup_revalidate() for the best performance.

Reported-by: Christoph Hellwig <hch@lst.de>
Fixes: 156b094829 ("NFS: Request a directory delegation on ACCESS, CREATE, and UNLINK")
Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2026-01-04 23:03:25 -05:00
Zilin Guan
5a74af51c3 pnfs/blocklayout: Fix memory leak in bl_parse_scsi()
In bl_parse_scsi(), if the block device length is zero, the function
returns immediately without releasing the file reference obtained via
bl_open_path(), leading to a memory leak.

Fix this by jumping to the out_blkdev_put label to ensure the file
reference is properly released.

Fixes: d76c769c8d ("pnfs/blocklayout: Don't add zero-length pnfs_block_dev")
Signed-off-by: Zilin Guan <zilin@seu.edu.cn>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2026-01-04 23:03:25 -05:00
Zilin Guan
0c72808365 pnfs/flexfiles: Fix memory leak in nfs4_ff_alloc_deviceid_node()
In nfs4_ff_alloc_deviceid_node(), if the allocation for ds_versions fails,
the function jumps to the out_scratch label without freeing the already
allocated dsaddrs list, leading to a memory leak.

Fix this by jumping to the out_err_drain_dsaddrs label, which properly
frees the dsaddrs list before cleaning up other resources.

Fixes: d67ae825a5 ("pnfs/flexfiles: Add the FlexFile Layout Driver")
Signed-off-by: Zilin Guan <zilin@seu.edu.cn>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2026-01-04 23:03:25 -05:00
Trond Myklebust
cce0be6eb4 NFS: Fix a deadlock involving nfs_release_folio()
Wang Zhaolong reports a deadlock involving NFSv4.1 state recovery
waiting on kthreadd, which is attempting to reclaim memory by calling
nfs_release_folio(). The latter cannot make progress due to state
recovery being needed.

It seems that the only safe thing to do here is to kick off a writeback
of the folio, without waiting for completion, or else kicking off an
asynchronous commit.

Reported-by: Wang Zhaolong <wangzhaolong@huaweicloud.com>
Fixes: 96780ca55e ("NFS: fix up nfs_release_folio() to try to release the page")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2026-01-04 23:03:24 -05:00