In few places, the driver tests a cpumask for emptiness immediately
before calling functions that report emptiness themself.
Signed-off-by: Yury Norov [NVIDIA] <yury.norov@gmail.com>
Link: https://patch.msgid.link/20250604193947.11834-8-yury.norov@gmail.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
The function protects the for loop with affinity->num_core_siblings > 0
condition, which is redundant because the loop will break immediately in
that case.
Drop it and save one indentation level.
Signed-off-by: Yury Norov [NVIDIA] <yury.norov@gmail.com>
Link: https://patch.msgid.link/20250604193947.11834-7-yury.norov@gmail.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
num_cores_per_socket is calculated by dividing by
node_affinity.num_online_nodes, but all users of this variable multiply
it by node_affinity.num_online_nodes again. This effectively is the same
as rounding it down by node_affinity.num_online_nodes.
Signed-off-by: Yury Norov [NVIDIA] <yury.norov@gmail.com>
Link: https://patch.msgid.link/20250604193947.11834-6-yury.norov@gmail.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
The function opencodes cpumask_nth() and cpumask_clear_cpus(). The
dedicated helpers are easier to use and usually much faster than
opencoded for-loops.
While there, drop useless clear of real_cpu_mask.
Signed-off-by: Yury Norov [NVIDIA] <yury.norov@gmail.com>
Link: https://patch.msgid.link/20250604193947.11834-5-yury.norov@gmail.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
The function opencodes cpumask_nth() and cpumask_clear_cpus(). The
dedicated helpers are easier to use and usually much faster than
opencoded for-loops.
Signed-off-by: Yury Norov [NVIDIA] <yury.norov@gmail.com>
Link: https://patch.msgid.link/20250604193947.11834-4-yury.norov@gmail.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
The function divides number of online CPUs by num_core_siblings, and
later checks the divider by zero. This implies a possibility to get
and divide-by-zero runtime error. Fix it by moving the check prior to
division. This also helps to save one indentation level.
Signed-off-by: Yury Norov [NVIDIA] <yury.norov@gmail.com>
Link: https://patch.msgid.link/20250604193947.11834-3-yury.norov@gmail.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
When user wants to clear a range in cpumask, the only option the API
provides now is a for-loop, like:
for_each_cpu_from(cpu, mask) {
if (cpu >= ncpus)
break;
__cpumask_clear_cpu(cpu, mask);
}
In the bitmap API we have bitmap_clear() for that, which is
significantly faster than a for-loop. Propagate it to cpumasks.
Signed-off-by: Yury Norov [NVIDIA] <yury.norov@gmail.com>
Link: https://patch.msgid.link/20250604193947.11834-2-yury.norov@gmail.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
'rx_ring->size' means the count of ring descriptors multiplied by the
size of one descriptor. When increasing the count of ring descriptors,
it may exceed the limit of pool size.
[ 864.209610] page_pool_create_percpu() gave up with errno -7
[ 864.209613] txgbe 0000:11:00.0: Page pool creation failed: -7
Fix to set the pool_size to the count of ring descriptors.
Fixes: 850b971110 ("net: libwx: Allocate Rx and Tx resources")
Cc: stable@vger.kernel.org
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Mina Almasry <almasrymina@google.com>
Link: https://patch.msgid.link/434C72BFB40E350A+20250625023924.21821-1-jiawenwu@trustnetic.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
If spec_rstack_overflow=ibpb then this mitigates retbleed as well. This
is relevant for AMD Zen1 and Zen2 CPUs which are vulnerable to both bugs.
Signed-off-by: David Kaplan <david.kaplan@amd.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Borislav Petkov (AMD) <bp@alien8.de>
Cc: H . Peter Anvin <hpa@zytor.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Josh Poimboeuf <jpoimboe@kernel.org>
Cc: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20250625155805.600376-3-david.kaplan@amd.com
AMD Zen1 and Zen2 CPUs with SMT disabled are not vulnerable to SRSO.
Instead of overloading the X86_FEATURE_SRSO_NO bit to indicate this,
define a separate mitigation to make the code cleaner.
Signed-off-by: David Kaplan <david.kaplan@amd.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Borislav Petkov (AMD) <bp@alien8.de>
Cc: H . Peter Anvin <hpa@zytor.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Josh Poimboeuf <jpoimboe@kernel.org>
Cc: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20250625155805.600376-2-david.kaplan@amd.com
With all the code touching struct intel_bw_state moved inside
intel_bw.c, we move the struct definition there too, and make the type
opaque. to_intel_bw_state() needs to be turned into a proper
function. All of this nicely reduces includes from intel_bw.h.
Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://lore.kernel.org/r/743ba67e4e3c5dac4f5e58ab4d2357edea601d09.1750847509.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Add intel_dbuf_pmdemand_needs_update() helper to avoid looking at struct
intel_dbuf_state internals outside of skl_watermark.c.
With this, we can also move to_intel_dbuf_state(),
intel_atomic_get_old_dbuf_state(), and intel_atomic_get_new_dbuf_state()
inside skl_watermark.c.
Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://lore.kernel.org/r/b493f259d0d3db047151fee18d7e801ad469fa88.1750847509.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
struct gpio_chip now has callbacks for setting line values that return
integers, so they can indicate failures. Convert the driver to using
them.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/f09a0481fc0ddafb9aa05d903fbb42ef52332c03.1750838486.git.geert+renesas@glider.be
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
The GPIO core never passes empty bankmasks to the callbacks for handling
multiple signals at once. Remove the superfluous checks, and refactor
the code.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/29fb200d3f92e79cdd5ce4048d2847c265f337b4.1750838486.git.geert+renesas@glider.be
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
The length in the pseudo header should be the length of the L3 payload
AKA the L4 header+payload. The selftest code builds the packet from
the lower layers up, so all the headers are pushed already when it
constructs L4. We need to subtract the lower layer headers from skb->len.
Fixes: 3e1e58d64c ("net: add generic selftest support")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Gerhard Engleder <gerhard@engleder-embedded.com>
Reported-by: Oleksij Rempel <o.rempel@pengutronix.de>
Tested-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://patch.msgid.link/20250624183258.3377740-1-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
If an AUX event overruns, the event core layer intends to disable the
event by setting the 'pending_disable' flag. Unfortunately, the event
is not actually disabled afterwards.
In commit:
ca6c21327c ("perf: Fix missing SIGTRAPs")
the 'pending_disable' flag was changed to a boolean. However, the
AUX event code was not updated accordingly. The flag ends up holding a
CPU number. If this number is zero, the flag is taken as false and the
IRQ work is never triggered.
Later, with commit:
2b84def990 ("perf: Split __perf_pending_irq() out of perf_pending_irq()")
a new IRQ work 'pending_disable_irq' was introduced to handle event
disabling. The AUX event path was not updated to kick off the work queue.
To fix this bug, when an AUX ring buffer overrun is detected, call
perf_event_disable_inatomic() to initiate the pending disable flow.
Also update the outdated comment for setting the flag, to reflect the
boolean values (0 or 1).
Fixes: 2b84def990 ("perf: Split __perf_pending_irq() out of perf_pending_irq()")
Fixes: ca6c21327c ("perf: Fix missing SIGTRAPs")
Signed-off-by: Leo Yan <leo.yan@arm.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: James Clark <james.clark@linaro.org>
Reviewed-by: Yeoreum Yun <yeoreum.yun@arm.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Liang Kan <kan.liang@linux.intel.com>
Cc: Marco Elver <elver@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: linux-perf-users@vger.kernel.org
Link: https://lore.kernel.org/r/20250625170737.2918295-1-leo.yan@arm.com
The ACSPCIE1 module on TI's J784S4 SoC is capable of driving the reference
clock required by the PCIe Endpoint device. It is an alternative to on-
board and external reference clock generators.
Add the device-tree node for the same.
Signed-off-by: Parth Pancholi <parth.pancholi@toradex.com>
Link: https://lore.kernel.org/r/20250513152155.1590689-1-parth105105@gmail.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
According to the "GPIO Expander Map / Table" section of the J722S EVM
Schematic within the Evaluation Module Design Files package [0], the
GPIO Pin P05 located on the GPIO Expander 1 (I2C0/0x23) has to be pulled
down to select the Type-C interface. Since commit under Fixes claims to
enable the Type-C interface, update the property within "p05-hog" from
"output-high" to "output-low", thereby switching from the Type-A
interface to the Type-C interface.
[0]: https://www.ti.com/lit/zip/sprr495
Cc: stable@vger.kernel.org
Fixes: 485705df5d ("arm64: dts: ti: k3-j722s: Enable PCIe and USB support on J722S-EVM")
Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
Link: https://lore.kernel.org/r/20250623100657.4082031-1-s-vadapalli@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
While doing voltage swing for type-c phy
for DP 1.62 and HDMI write the
LOADGEN_SHARING_PMD_DISABLE bit to 1.
-v2: Update commit.
Add bspec[Suraj]
-v3: Move w/a before DKL_TX_PMD_LANE_SUS.
Use DKL_TX_DPCNTL2[Ville]
-v4: Use intel_encoder_is_dp and
intel_encoder_is_hdmi. [Suraj]
Bspec: 55359
Signed-off-by: Nemesa Garg <nemesa.garg@intel.com>
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://lore.kernel.org/r/20250625074911.194085-1-nemesa.garg@intel.com
host_stage2_adjust_range() tries to find the largest block mapping that
fits within a memory or mmio region (represented by a kvm_mem_range in
this function) during host stage-2 faults under pKVM. To do so, it walks
the host stage-2 page-table, finds the faulting PTE and its level, and
then progressively increments the level until it finds a granule of the
appropriate size. However, the condition in the loop implementing the
above is broken as it checks kvm_level_supports_block_mapping() for the
next level instead of the current, so pKVM may attempt to map a region
larger than can be covered with a single block.
This is not a security problem and is quite rare in practice (the
kvm_mem_range check usually forces host_stage2_adjust_range() to choose a
smaller granule), but this is clearly not the expected behaviour.
Refactor the loop to fix the bug and improve readability.
Fixes: c4f0935e4d ("KVM: arm64: Optimize host memory aborts")
Signed-off-by: Quentin Perret <qperret@google.com>
Link: https://lore.kernel.org/r/20250625105548.984572-1-qperret@google.com
Signed-off-by: Marc Zyngier <maz@kernel.org>
The state of the vcpu's MI line should be asserted when its
ICH_HCR_EL2.En is set and ICH_MISR_EL2 is non-zero. Using bitwise AND
(&=) directly for this calculation will not give us the correct result
when the LSB of the vcpu's ICH_MISR_EL2 isn't set. Correct this by
directly computing the line level with a logical AND operation.
Signed-off-by: Wei-Lin Chang <r09922117@csie.ntu.edu.tw>
Link: https://lore.kernel.org/r/20250625084709.3968844-1-r09922117@csie.ntu.edu.tw
[maz: drop the level check from the original code]
Signed-off-by: Marc Zyngier <maz@kernel.org>
The built-in mic of ASUS VivoBook X507UAR is broken recently by the fix
of the pin sort. The fixup ALC256_FIXUP_ASUS_MIC_NO_PRESENCE is working
for addressing the regression, too.
Fixes: 3b4309546b ("ALSA: hda: Fix headset detection failure due to unstable sort")
Reported-by: Igor Tamara <igor.tamara@gmail.com>
Closes: https://bugs.debian.org/1108069
Signed-off-by: Salvatore Bonaccorso <carnil@debian.org>
Link: https://lore.kernel.org/CADdHDco7_o=4h_epjEAb92Dj-vUz_PoTC2-W9g5ncT2E0NzfeQ@mail.gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Allocate and register drm_panel to allow the panel_follower framework to
detect the eDP panel and pass drm_connector::kdev device to drm_panel
allocation for matching.
Call drm_panel_prepare/unprepare in ddi_enable for eDP to allow the
followers to get notified of the panel power state changes.
Note: This is for eDP with DDI platforms only.
v2: remove backlight setup from panel_register (Jani)
v3: Updated the commit message (Jani)
Signed-off-by: Arun R Murthy <arun.r.murthy@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://lore.kernel.org/r/20250624-edp_panel-v3-1-e8197b6d9fde@intel.com
A small collection of fixes, the main one being a fix for resume from
hibernation on AMD systems, plus a few new quirk entries for AMD
systems.
-----BEGIN PGP SIGNATURE-----
iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmhcREYACgkQJNaLcl1U
h9BAQgf/aFcfxXvHtTgX1B45bFC8KiztVWvpxRpdAAss+ugAt/zvaVnlt7xisgrV
m3+NNL4s0c7b4EGpb3oyNkW6CyYQepusXaBqmoJtzFVPVE6Z3PvD1yDtEB8HuOiX
tceZGjuBZ6lDY8kMKgWjBkORuMJ/n4IikV//Gj28FXn6WB2l/3/S0R2sNWwbPoH8
61Y9mLnPiBX633BpjTtBzriv0ePZ/+k+19RXGqQ4cy2ZnGgMRI/oBJua+DcCdB9I
ZKQXrTDUJ5y+645ImMGFKyj9qDeC3xhwlk9DMpqiMBNEpS+rKCrXQchwUBFtr2NP
GIZfjqXNXa3Z1cLItv2zmJ7vkuhGqw==
=v8PL
-----END PGP SIGNATURE-----
Merge tag 'asoc-fix-v6.16-rc3' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v6.16
A small collection of fixes, the main one being a fix for resume from
hibernation on AMD systems, plus a few new quirk entries for AMD
systems.
-----BEGIN PGP SIGNATURE-----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=Buaz
-----END PGP SIGNATURE-----
Merge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Pull bpf fixes from Alexei Starovoitov:
- Fix use-after-free in libbpf when map is resized (Adin Scannell)
- Fix verifier assumptions about 2nd argument of bpf_sysctl_get_name
(Jerome Marchand)
- Fix verifier assumption of nullness of d_inode in dentry (Song Liu)
- Fix global starvation of LRU map (Willem de Bruijn)
- Fix potential NULL dereference in btf_dump__free (Yuan Chen)
* tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
selftests/bpf: adapt one more case in test_lru_map to the new target_free
libbpf: Fix possible use-after-free for externs
selftests/bpf: Convert test_sysctl to prog_tests
bpf: Specify access type of bpf_sysctl_get_name args
libbpf: Fix null pointer dereference in btf_dump__free on allocation failure
bpf: Adjust free target to avoid global starvation of LRU map
bpf: Mark dentry->d_inode as trusted_or_null
Fix a 6.16 regression from the recovery pass rework, which introduced a
bug where calling bch2_run_explicit_recovery_pass() would only return
the error code to rewind recovery for the first call that scheduled that
recovery pass.
If the error code from the first call was swallowed (because it was
called by an asynchronous codepath), subsequent calls would go "ok, this
pass is already marked as needing to run" and return 0.
Fixing this ensures that check_topology bails out to run btree_node_scan
before doing any repair.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Previously, calling bch2_btree_has_scanned_nodes() when btree node
scan hadn't actually run would erroniously return false - causing us to
think a btree was entirely gone.
This fixes a 6.16 regression from moving the scheduling of btree node
scan out of bch2_btree_lost_data() (fixing the bug where we'd schedule
it persistently in the superblock) and only scheduling it when
check_toploogy() is asking for scanned btree nodes.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
-----BEGIN PGP SIGNATURE-----
iHUEABYIAB0WIQQqUNBr3gm4hGXdBJlZ7Krx/gZQ6wUCaFx0bQAKCRBZ7Krx/gZQ
63yTAQC4NS7qopT8BQGn3aM+t8YjYo36BTeSRcSy4hVEAFrEJAD/WyW5Dcy1lWZR
S8g8rqRimsCepwxqTinYJlS7H8S56ws=
=CmGc
-----END PGP SIGNATURE-----
Merge tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull mount fixes from Al Viro:
"Several mount-related fixes"
* tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
userns and mnt_idmap leak in open_tree_attr(2)
attach_recursive_mnt(): do not lock the covering tree when sliding something under it
replace collect_mounts()/drop_collected_mounts() with a safer variant
