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From the perspective of Intel cstate residency counters,
SAPPHIRERAPIDS_X is the same as ICELAKE_X.
Share the code with it. And update the comments for SAPPHIRERAPIDS_X.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Link: https://lkml.kernel.org/r/20220415104520.2737004-1-rui.zhang@intel.com
This problem can be reproduced with CONFIG_PERF_USE_VMALLOC enabled on
both x86_64 and aarch64 arch when using sysdig -B(using ebpf)[1].
sysdig -B works fine after rebuilding the kernel with
CONFIG_PERF_USE_VMALLOC disabled.
I tracked it down to the if condition event->rb->nr_pages != nr_pages
in perf_mmap is true when CONFIG_PERF_USE_VMALLOC is enabled where
event->rb->nr_pages = 1 and nr_pages = 2048 resulting perf_mmap to
return -EINVAL. This is because when CONFIG_PERF_USE_VMALLOC is
enabled, rb->nr_pages is always equal to 1.
Arch with CONFIG_PERF_USE_VMALLOC enabled by default:
arc/arm/csky/mips/sh/sparc/xtensa
Arch with CONFIG_PERF_USE_VMALLOC disabled by default:
x86_64/aarch64/...
Fix this problem by using data_page_nr()
[1] https://github.com/draios/sysdig
Fixes: 906010b2134e ("perf_event: Provide vmalloc() based mmap() backing")
Signed-off-by: Zhipeng Xie <xiezhipeng1@huawei.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20220209145417.6495-1-xiezhipeng1@huawei.com
The warning in cfs_rq_is_decayed() triggered:
SCHED_WARN_ON(cfs_rq->avg.load_avg ||
cfs_rq->avg.util_avg ||
cfs_rq->avg.runnable_avg)
There exists a corner case in attach_entity_load_avg() which will
cause load_sum to be zero while load_avg will not be.
Consider se_weight is 88761 as per the sched_prio_to_weight[] table.
Further assume the get_pelt_divider() is 47742, this gives:
se->avg.load_avg is 1.
However, calculating load_sum:
se->avg.load_sum = div_u64(se->avg.load_avg * se->avg.load_sum, se_weight(se));
se->avg.load_sum = 1*47742/88761 = 0.
Then enqueue_load_avg() adds this to the cfs_rq totals:
cfs_rq->avg.load_avg += se->avg.load_avg;
cfs_rq->avg.load_sum += se_weight(se) * se->avg.load_sum;
Resulting in load_avg being 1 with load_sum is 0, which will trigger
the WARN.
Fixes: f207934fb79d ("sched/fair: Align PELT windows between cfs_rq and its se")
Signed-off-by: kuyo chang <kuyo.chang@mediatek.com>
[peterz: massage changelog]
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Vincent Guittot <vincent.guittot@linaro.org>
Tested-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Link: https://lkml.kernel.org/r/20220414090229.342-1-kuyo.chang@mediatek.com
Huge page backed vmalloc memory could benefit performance in many cases.
However, some users of vmalloc may not be ready to handle huge pages for
various reasons: hardware constraints, potential pages split, etc.
VM_NO_HUGE_VMAP was introduced to allow vmalloc users to opt-out huge
pages. However, it is not easy to track down all the users that require
the opt-out, as the allocation are passed different stacks and may cause
issues in different layers.
To address this issue, replace VM_NO_HUGE_VMAP with an opt-in flag,
VM_ALLOW_HUGE_VMAP, so that users that benefit from huge pages could ask
specificially.
Also, remove vmalloc_no_huge() and add opt-in helper vmalloc_huge().
Fixes: fac54e2bfb5b ("x86/Kconfig: Select HAVE_ARCH_HUGE_VMALLOC with HAVE_ARCH_HUGE_VMAP")
Link: https://lore.kernel.org/netdev/14444103-d51b-0fb3-ee63-c3f182f0b546@molgen.mpg.de/"
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Song Liu <song@kernel.org>
Reviewed-by: Rik van Riel <riel@surriel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This reverts commit e2a88eabb02410267519b838fb9b79f5206769be. The commit
in question makes msm_use_mmu() check whether the DRM 'component master'
device is translated by the IOMMU. At this moment it is the 'mdss'
device.
However on platforms using the MDP5 driver (e.g. MSM8916/APQ8016,
MSM8996/APQ8096) it's the mdp5 device, which has the iommus property
(and thus is "translated by the IOMMU"). This results in these devices
being broken with the following lines in the dmesg.
[drm] Initialized msm 1.9.0 20130625 for 1a00000.mdss on minor 0
msm 1a00000.mdss: [drm:adreno_request_fw] loaded qcom/a300_pm4.fw from new location
msm 1a00000.mdss: [drm:adreno_request_fw] loaded qcom/a300_pfp.fw from new location
msm 1a00000.mdss: [drm:get_pages] *ERROR* could not get pages: -28
msm 1a00000.mdss: could not allocate stolen bo
msm 1a00000.mdss: [drm:get_pages] *ERROR* could not get pages: -28
msm 1a00000.mdss: [drm:msm_alloc_stolen_fb] *ERROR* failed to allocate buffer object
msm 1a00000.mdss: [drm:msm_fbdev_create] *ERROR* failed to allocate fb
Getting the mdp5 device pointer from this function is not that easy at
this moment. Thus this patch is reverted till the MDSS rework [1] lands.
It will make the mdp5/dpu1 device component master and the check will be
legit.
[1] https://patchwork.freedesktop.org/series/98525/
Fixes: e2a88eabb024 ("drm/msm: Stop using iommu_present()")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20220419130422.1033699-1-dmitry.baryshkov@linaro.org
Signed-off-by: Rob Clark <robdclark@chromium.org>
A few more fixes for SPI, plus one new PCI ID for another Intel chipset.
All device specific stuff.
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Merge tag 'spi-fix-v5.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A few more fixes for SPI, plus one new PCI ID for another Intel
chipset.
All device specific stuff"
* tag 'spi-fix-v5.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: atmel-quadspi: Fix the buswidth adjustment between spi-mem and controller
spi: cadence-quadspi: fix incorrect supports_op() return value
spi: intel: Add support for Raptor Lake-S SPI serial flash
spi: spi-mtk-nor: initialize spi controller after resume
Commit abfc426d1b2f ("block: pass a block_device to bio_clone_fast")
calls the modified bio_alloc_clone() in bcache code as:
bio_init_clone(bio->bi_bdev, bio, orig_bio, GFP_NOIO);
But the first parameter is wrong, where bio->bi_bdev should be
orig_bio->bi_bdev. The wrong bi_bdev panics the kernel when submitting
cache bio.
This patch fixes the wrong bdev parameter usage and avoid the panic.
Fixes: abfc426d1b2f ("block: pass a block_device to bio_clone_fast")
Signed-off-by: Coly Li <colyli@suse.de>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Mike Snitzer <snitzer@redhat.com>
Link: https://lore.kernel.org/r/20220419160425.4148-3-colyli@suse.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Commit a7c50c940477 ("block: pass a block_device and opf to bio_reset")
moves bch_bio_map() inside journal_write_unlocked() next to the location
where the modified bio_reset() was called.
This change is wrong because calling bch_bio_map() immediately after
bio_reset(), a BUG_ON(!bio->bi_iter.bi_size) inside bch_bio_map() will
be triggered and panic the kernel.
This patch puts bch_bio_map() back to its original correct location in
journal_write_unlocked() and avoid the BUG_ON().
Fixes: a7c50c940477 ("block: pass a block_device and opf to bio_reset")
Signed-off-by: Coly Li <colyli@suse.de>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Chaitanya Kulkarni <kch@nvidia.com>
Link: https://lore.kernel.org/r/20220419160425.4148-2-colyli@suse.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Last cycle we extended the idmapped mounts infrastructure to support
idmapped mounts of idmapped filesystems (No such filesystem yet exist.).
Since then, the meaning of an idmapped mount is a mount whose idmapping
is different from the filesystems idmapping.
While doing that work we missed to adapt the acl translation helpers.
They still assume that checking for the identity mapping is enough. But
they need to use the no_idmapping() helper instead.
Note, POSIX ACLs are always translated right at the userspace-kernel
boundary using the caller's current idmapping and the initial idmapping.
The order depends on whether we're coming from or going to userspace.
The filesystem's idmapping doesn't matter at the border.
Consequently, if a non-idmapped mount is passed we need to make sure to
always pass the initial idmapping as the mount's idmapping and not the
filesystem idmapping. Since it's irrelevant here it would yield invalid
ids and prevent setting acls for filesystems that are mountable in a
userns and support posix acls (tmpfs and fuse).
I verified the regression reported in [1] and verified that this patch
fixes it. A regression test will be added to xfstests in parallel.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215849 [1]
Fixes: bd303368b776 ("fs: support mapped mounts of mapped filesystems")
Cc: Seth Forshee <sforshee@digitalocean.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: <stable@vger.kernel.org> # 5.17
Cc: <regressions@lists.linux.dev>
Signed-off-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
A collection of fixes that came in since the merge window, plus one new
device ID for an x86 laptop. Nothing that really stands out with
particularly big impact outside of the affected device.
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Merge tag 'asoc-fix-v5.18-rc3' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v5.18
A collection of fixes that came in since the merge window, plus one new
device ID for an x86 laptop. Nothing that really stands out with
particularly big impact outside of the affected device.
When the user runs:
bridge link set dev $br_port mcast_flood on
this command should affect not only L2 multicast, but also IPv4 and IPv6
multicast.
In the Ocelot switch, unknown multicast gets flooded according to
different PGIDs according to its type, and PGID_MC only handles L2
multicast. Therefore, by leaving PGID_MCIPV4 and PGID_MCIPV6 at their
default value of 0, unknown IP multicast traffic is never flooded.
Fixes: 421741ea5672 ("net: mscc: ocelot: offload bridge port flags to device")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/r/20220415151950.219660-1-vladimir.oltean@nxp.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
In case the checksum calculation is offloaded to the DSA master network
interface, it will include the switch trailing tag. As soon as the switch strips
that tag on egress, the calculated checksum is wrong.
Therefore, add the checksum calculation to the tagger (if required) before
adding the switch tag. This way, the hellcreek code works with all DSA master
interfaces regardless of their declared feature set.
Fixes: 01ef09caad66 ("net: dsa: Add tag handling for Hirschmann Hellcreek switches")
Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20220415103320.90657-1-kurt@linutronix.de
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
With some VRR panels, user can turn VRR ON/OFF on the fly from the panel settings.
When VRR is turned OFF ,sends a long HPD to the driver clearing the Ignore MSA bit
in the DPCD. Currently the driver parses that onevery HPD but fails to reset
the corresponding VRR Capable Connector property.
Hence the userspace still sees this as VRR Capable panel which is incorrect.
Fix this by explicitly resetting the connector property.
v2: Reset vrr capable if status == connector_disconnected
v3: Use i915 and use bool vrr_capable (Jani Nikula)
v4: Move vrr_capable to after update modes call (Jani N)
Remove the redundant comment (Jan N)
v5: Fixes the regression on older platforms by resetting the VRR
only if HAS_VRR
v6: Remove the checks from driver, add in drm core before
setting VRR prop (Ville)
v7: Move VRR set/reset to set/unset_edid (Ville)
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Fixes: 9bc34b4d0f3c ("drm/i915/display/vrr: Reset VRR capable property on a long hpd")
Signed-off-by: Manasi Navare <manasi.d.navare@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220303233222.4698-1-manasi.d.navare@intel.com
(cherry picked from commit d999ad1079f574be06a8f1701cd24a5dc0ada48c)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
The USB audio device 0db0:a073 based on the Realtek ALC4080 chipset
exposes all playback volume controls as "PCM". This makes
distinguishing the individual functions hard.
The mapping already adopted for device 0db0:419c based on the same
chipset fixes the issue, apply it for this device too.
Signed-off-by: Maurizio Avogadro <mavoga@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/Yl1ykPaGgsFf3SnW@ryzen
Signed-off-by: Takashi Iwai <tiwai@suse.de>
pci_get_class() will already unref the pci device passed as argument.
So if it's unconditionally unref'ed, even if the loop is not stopped,
there will be one too many unref for each device not matched.
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/5701
Fixes: c9db8a30d9f0 ("ALSA: hda/i915 - skip acomp init if no matching display")
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20220416064418.2364582-1-lucas.demarchi@intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
sr_ioctl.c uses this pattern:
result = sr_do_ioctl(cd, &cgc);
to-user = buffer[];
kfree(buffer);
return result;
Use of a buffer without checking leaks information. Check result and jump
over the use of buffer if there is an error.
result = sr_do_ioctl(cd, &cgc);
if (result)
goto err;
to-user = buffer[];
err:
kfree(buffer);
return result;
Additionally, initialize the buffer to zero.
This problem can be seen in the 2.4.0 kernel.
Link: https://lore.kernel.org/r/20220411174756.2418435-1-trix@redhat.com
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This patch reverts commit 7082a29c22ac ("ARC: use ACCESS_ONCE in cmpxchg
loop").
It is not necessary to use READ_ONCE() because cmpxchg contains barrier. We
can get it from commit d57f727264f1 ("ARC: add compiler barrier to LLSC
based cmpxchg").
Signed-off-by: Bang Li <libang.linuxer@gmail.com>
Signed-off-by: Vineet Gupta <vgupta@kernel.org>
They were in <asm/pgtables.h> and have been removed from there in
974b9b2c68f ("mm: consolidate pte_index() and pte_offset_*() definitions")
in favor of the generic version. But that missed that the same definitons
also existed in <asm/pgtable-levels.h>, where they were (inadvertently?)
introduced in fe6cb7b043b6 ("ARC: mm: disintegrate pgtable.h into levels
and flags").
Fixes: 974b9b2c68f3 ("mm: consolidate pte_index() and pte_offset_*() definitions")
Fixes: fe6cb7b043b6 ("ARC: mm: disintegrate pgtable.h into levels and flags")
Signed-off-by: Rolf Eike Beer <eb@emlix.com>
Signed-off-by: Vineet Gupta <vgupta@kernel.org>
The node names should be generic and SPI NOR dtschema expects "flash".
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Vineet Gupta <vgupta@kernel.org>
disasm_instr() already call memset(0) on its 2nd argument, so there is no
need to clear it explicitly before calling this function.
Remove the redundant memset().
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Vineet Gupta <vgupta@kernel.org>
Various spelling mistakes in comments.
Detected with the help of Coccinelle.
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Signed-off-by: Vineet Gupta <vgupta@kernel.org>
Function syscall_trace_exit expects pointer to pt_regs. However
r0 is also used to keep syscall return value. Restore pointer
to pt_regs before calling syscall_trace_exit.
Cc: <stable@vger.kernel.org>
Signed-off-by: Sergey Matyukevich <sergey.matyukevich@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@kernel.org>
Use kzalloc rather than duplicating its implementation, which
makes code simple and easy to understand.
Signed-off-by: Haowen Bai <baihaowen@meizu.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
This will reset deeply on freeze and thaw instead of suspend and
resume and prevent null pointer dereferences of the uninitialized ring
0 buffer while thawing.
The impact is an indefinitely hanging kernel. You can't switch
consoles after this and the only possible user interaction is SysRq.
BUG: kernel NULL pointer dereference
RIP: 0010:aq_ring_rx_fill+0xcf/0x210 [atlantic]
aq_vec_init+0x85/0xe0 [atlantic]
aq_nic_init+0xf7/0x1d0 [atlantic]
atl_resume_common+0x4f/0x100 [atlantic]
pci_pm_thaw+0x42/0xa0
resolves in aq_ring.o to
```
0000000000000ae0 <aq_ring_rx_fill>:
{
/* ... */
baf: 48 8b 43 08 mov 0x8(%rbx),%rax
buff->flags = 0U; /* buff is NULL */
```
The bug has been present since the introduction of the new pm code in
8aaa112a57c1 ("net: atlantic: refactoring pm logic") and was hidden
until 8ce84271697a ("net: atlantic: changes for multi-TC support"),
which refactored the aq_vec_{free,alloc} functions into
aq_vec_{,ring}_{free,alloc}, but is technically not wrong. The
original functions just always reinitialized the buffers on S3/S4. If
the interface is down before freezing, the bug does not occur. It does
not matter, whether the initrd contains and loads the module before
thawing.
So the fix is to invert the boolean parameter deep in all pm function
calls, which was clearly intended to be set like that.
First report was on Github [1], which you have to guess from the
resume logs in the posted dmesg snippet. Recently I posted one on
Bugzilla [2], since I did not have an AQC device so far.
#regzbot introduced: 8ce84271697a
#regzbot from: koo5 <kolman.jindrich@gmail.com>
#regzbot monitor: https://github.com/Aquantia/AQtion/issues/32
Fixes: 8aaa112a57c1 ("net: atlantic: refactoring pm logic")
Link: https://github.com/Aquantia/AQtion/issues/32 [1]
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215798 [2]
Cc: stable@vger.kernel.org
Reported-by: koo5 <kolman.jindrich@gmail.com>
Signed-off-by: Manuel Ullmann <labre@posteo.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'linux-can-fixes-for-5.18-20220417' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can
Marc Kleine-Budde says:
====================
pull-request: can 2022-04-17
this is a pull request of 1 patch for net/master.
The patch is by Oliver Hartkopp and fixes a timeout monitoring problem
in the ISO TP protocol found by the syzbot.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
If the device is already in a runtime PM enabled state
pm_runtime_get_sync() will return 1, so a test for negative
value should be used to check for errors.
Fixes: f77621cc640a ("Input: omap-keypad - dynamically handle register offsets")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220412070131.19848-1-linmq006@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Merge tag 'for-linus-5.18-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixlet from Juergen Gross:
"A single cleanup patch for the Xen balloon driver"
* tag 'for-linus-5.18-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/balloon: don't use PV mode extra memory for zone device allocations
- Use either MSR_TSX_FORCE_ABORT or MSR_IA32_TSX_CTRL to disable TSX to
cover all CPUs which allow to disable it.
- Disable TSX development mode at boot so that a microcode update which
provides TSX development mode does not suddenly make the system
vulnerable to TSX Asynchronous Abort.
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Merge tag 'x86-urgent-2022-04-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
"Two x86 fixes related to TSX:
- Use either MSR_TSX_FORCE_ABORT or MSR_IA32_TSX_CTRL to disable TSX
to cover all CPUs which allow to disable it.
- Disable TSX development mode at boot so that a microcode update
which provides TSX development mode does not suddenly make the
system vulnerable to TSX Asynchronous Abort"
* tag 'x86-urgent-2022-04-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/tsx: Disable TSX development mode at boot
x86/tsx: Use MSR_TSX_CTRL to clear CPUID bits
- Fix the warning condition in __run_timers() which does not take into
account, that a CPU base (especially the deferrable base) has never a
timer armed on it and therefore the next_expiry value can become stale.
- Replace a WARN_ON() in the NOHZ code with a WARN_ON_ONCE() to prevent
endless spam in dmesg.
- Remove the double star from a comment which is not meant to be in
kernel-doc format.
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Merge tag 'timers-urgent-2022-04-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixes from Thomas Gleixner:
"A small set of fixes for the timers core:
- Fix the warning condition in __run_timers() which does not take
into account that a CPU base (especially the deferrable base) never
has a timer armed on it and therefore the next_expiry value can
become stale.
- Replace a WARN_ON() in the NOHZ code with a WARN_ON_ONCE() to
prevent endless spam in dmesg.
- Remove the double star from a comment which is not meant to be in
kernel-doc format"
* tag 'timers-urgent-2022-04-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
tick/sched: Fix non-kernel-doc comment
tick/nohz: Use WARN_ON_ONCE() to prevent console saturation
timers: Fix warning condition in __run_timers()
- Make the warning condition in flush_smp_call_function_queue() correct,
which checks a just emptied list head for being empty instead of
validating that there was no pending entry on the offlined CPU at all.
- The @cpu member of struct cpuhp_cpu_state is initialized when the CPU
hotplug thread for the upcoming CPU is created. That's too late because
the creation of the thread can fail and then the following rollback
operates on CPU0. Get rid of the CPU member and hand the CPU number to
the involved functions directly.
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Merge tag 'smp-urgent-2022-04-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull SMP fixes from Thomas Gleixner:
"Two fixes for the SMP core:
- Make the warning condition in flush_smp_call_function_queue()
correct, which checked a just emptied list head for being empty
instead of validating that there was no pending entry on the
offlined CPU at all.
- The @cpu member of struct cpuhp_cpu_state is initialized when the
CPU hotplug thread for the upcoming CPU is created. That's too late
because the creation of the thread can fail and then the following
rollback operates on CPU0. Get rid of the CPU member and hand the
CPU number to the involved functions directly"
* tag 'smp-urgent-2022-04-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
cpu/hotplug: Remove the 'cpu' member of cpuhp_cpu_state
smp: Fix offline cpu check in flush_smp_call_function_queue()
account that there can be an imbalance between present and possible CPUs,
which causes already assigned bits to be overwritten.
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Merge tag 'irq-urgent-2022-04-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fix from Thomas Gleixner:
"A single fix for the interrupt affinity spreading logic to take into
account that there can be an imbalance between present and possible
CPUs, which causes already assigned bits to be overwritten"
* tag 'irq-urgent-2022-04-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
genirq/affinity: Consider that CPUs on nodes can be unbalanced
Regression fix for the 5.18 cycle:
* Fix a regression with battery data failing to load from DT
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Merge tag 'for-v5.18-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply
Pull power supply fixes from Sebastian Reichel:
- Fix a regression with battery data failing to load from DT
* tag 'for-v5.18-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply:
power: supply: Reset err after not finding static battery
power: supply: samsung-sdi-battery: Add missing charge restart voltages
Pull i2c fixes from Wolfram Sang:
"Regular set of fixes for drivers and the dev-interface"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: ismt: Fix undefined behavior due to shift overflowing the constant
i2c: dev: Force case user pointers in compat_i2cdev_ioctl()
i2c: dev: check return value when calling dev_set_name()
i2c: qcom-geni: Use dev_err_probe() for GPI DMA error
i2c: imx: Implement errata ERR007805 or e7805 bus frequency limit
i2c: pasemi: Wait for write xfers to finish
The first attempt to fix a the 'impossible' WARN_ON_ONCE(1) in
isotp_tx_timer_handler() focussed on the identical CAN IDs created by
the syzbot reproducer and lead to upstream fix/commit 3ea566422cbd
("can: isotp: sanitize CAN ID checks in isotp_bind()"). But this did
not catch the root cause of the wrong tx.state in the tx_timer handler.
In the isotp 'first frame' case a timeout monitoring needs to be started
before the 'first frame' is send. But when this sending failed the timeout
monitoring for this specific frame has to be disabled too.
Otherwise the tx_timer is fired with the 'warn me' tx.state of ISOTP_IDLE.
Fixes: e057dd3fc20f ("can: add ISO 15765-2:2016 transport protocol")
Link: https://lore.kernel.org/all/20220405175112.2682-1-socketcan@hartkopp.net
Reported-by: syzbot+2339c27f5c66c652843e@syzkaller.appspotmail.com
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
If all completed requests in io_do_iopoll() were marked with
REQ_F_CQE_SKIP, we'll not only skip CQE posting but also
io_free_batch_list() leaking memory and resources.
Move @nr_events increment before REQ_F_CQE_SKIP check. We'll potentially
return the value greater than the real one, but iopolling will deal with
it and the userspace will re-iopoll if needed. In anyway, I don't think
there are many use cases for REQ_F_CQE_SKIP + IOPOLL.
Fixes: 83a13a4181b0e ("io_uring: tweak iopoll CQE_SKIP event counting")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/5072fc8693fbfd595f89e5d4305bfcfd5d2f0a64.1650186611.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Commit b5f862180d70 was introduced to discard lowest hash bit for layer3+4 hashing
but it also removes last bit from non layer3+4 hashing
Below script shows layer2+3 hashing will result in same slave to be used with above commit.
$ cat hash.py
#/usr/bin/python3.6
h_dests=[0xa0, 0xa1]
h_source=0xe3
hproto=0x8
saddr=0x1e7aa8c0
daddr=0x17aa8c0
for h_dest in h_dests:
hash = (h_dest ^ h_source ^ hproto ^ saddr ^ daddr)
hash ^= hash >> 16
hash ^= hash >> 8
print(hash)
print("with last bit removed")
for h_dest in h_dests:
hash = (h_dest ^ h_source ^ hproto ^ saddr ^ daddr)
hash ^= hash >> 16
hash ^= hash >> 8
hash = hash >> 1
print(hash)
Output:
$ python3.6 hash.py
522133332
522133333 <-------------- will result in both slaves being used
with last bit removed
261066666
261066666 <-------------- only single slave used
Signed-off-by: suresh kumar <suresh2514@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We just return failure in this case, but we need to release the iovec
first. If we're doing IO with more than FAST_IOV segments, then the
iovec is allocated and must be freed.
Reported-by: syzbot+96b43810dfe9c3bb95ed@syzkaller.appspotmail.com
Fixes: 584b0180f0f4 ("io_uring: move read/write file prep state into actual opcode handler")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
- fix the set/get_multiple() callbacks in gpio-sim
- use correct format characters in gpiolib-acpi
- use an unsigned type for pins in gpiolib-acpi
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Merge tag 'gpio-fixes-for-v5.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
"A single fix for gpio-sim and two patches for GPIO ACPI pulled from
Andy:
- fix the set/get_multiple() callbacks in gpio-sim
- use correct format characters in gpiolib-acpi
- use an unsigned type for pins in gpiolib-acpi"
* tag 'gpio-fixes-for-v5.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: sim: fix setting and getting multiple lines
gpiolib: acpi: Convert type for pin to be unsigned
gpiolib: acpi: use correct format characters
There are a number of SoC bugfixes that came in since the merge window,
and more of them are already pending. This batch includes
- A boot time regression fix for davinci that triggered on
multi_v5_defconfig when booting any platform
- Defconfig updates to address removed features, changed symbol
names or dependencies, for gemini, ux500, and pxa
- Email address changes for Krzysztof Kozlowski
- Build warning fixes for ep93xx and iop32x
- Devicetree warning fixes across many platforms
- Minor bugfixes for the reset controller, memory controller
and SCMI firmware subsystems plus the versatile-express board
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Merge tag 'soc-fixes-5.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Arnd Bergmann:
"There are a number of SoC bugfixes that came in since the merge
window, and more of them are already pending.
This batch includes:
- A boot time regression fix for davinci that triggered on
multi_v5_defconfig when booting any platform
- Defconfig updates to address removed features, changed symbol names
or dependencies, for gemini, ux500, and pxa
- Email address changes for Krzysztof Kozlowski
- Build warning fixes for ep93xx and iop32x
- Devicetree warning fixes across many platforms
- Minor bugfixes for the reset controller, memory controller and SCMI
firmware subsystems plus the versatile-express board"
* tag 'soc-fixes-5.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (34 commits)
ARM: config: Update Gemini defconfig
arm64: dts: qcom/sdm845-shift-axolotl: Fix boolean properties with values
ARM: dts: align SPI NOR node name with dtschema
ARM: dts: Fix more boolean properties with values
arm/arm64: dts: qcom: Fix boolean properties with values
arm64: dts: imx: Fix imx8*-var-som touchscreen property sizes
arm: dts: imx: Fix boolean properties with values
arm64: dts: tegra: Fix boolean properties with values
arm: dts: at91: Fix boolean properties with values
arm: configs: imote2: Drop defconfig as board support dropped.
ep93xx: clock: Don't use plain integer as NULL pointer
ep93xx: clock: Fix UAF in ep93xx_clk_register_gate()
ARM: vexpress/spc: Fix all the kernel-doc build warnings
ARM: vexpress/spc: Fix kernel-doc build warning for ve_spc_cpu_in_wfi
ARM: config: u8500: Re-enable AB8500 battery charging
ARM: config: u8500: Add some common hardware
memory: fsl_ifc: populate child nodes of buses and mfd devices
ARM: config: Refresh U8500 defconfig
firmware: arm_scmi: Fix sparse warnings in OPTEE transport driver
firmware: arm_scmi: Replace zero-length array with flexible-array member
...
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Merge tag 'random-5.18-rc3-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random
Pull random number generator fixes from Jason Donenfeld:
- Per your suggestion, random reads now won't fail if there's a page
fault after some non-zero amount of data has been read, which makes
the behavior consistent with all other reads in the kernel.
- Rather than an inconsistent mix of random_get_entropy() returning an
unsigned long or a cycles_t, now it just returns an unsigned long.
- A memcpy() was replaced with an memmove(), because the addresses are
sometimes overlapping. In practice the destination is always before
the source, so not really an issue, but better to be correct than
not.
* tag 'random-5.18-rc3-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random:
random: use memmove instead of memcpy for remaining 32 bytes
random: make random_get_entropy() return an unsigned long
random: allow partial reads if later user copies fail
13 fixes, all in drivers. The most extensive changes are in the iscsi
series (affecting drivers qedi, cxgbi and bnx2i), the next most is
scsi_debug, but that's just a simple revert and then minor updates to
pm80xx.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.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:
"13 fixes, all in drivers.
The most extensive changes are in the iscsi series (affecting drivers
qedi, cxgbi and bnx2i), the next most is scsi_debug, but that's just a
simple revert and then minor updates to pm80xx"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: iscsi: MAINTAINERS: Add Mike Christie as co-maintainer
scsi: qedi: Fix failed disconnect handling
scsi: iscsi: Fix NOP handling during conn recovery
scsi: iscsi: Merge suspend fields
scsi: iscsi: Fix unbound endpoint error handling
scsi: iscsi: Fix conn cleanup and stop race during iscsid restart
scsi: iscsi: Fix endpoint reuse regression
scsi: iscsi: Release endpoint ID when its freed
scsi: iscsi: Fix offload conn cleanup when iscsid restarts
scsi: iscsi: Move iscsi_ep_disconnect()
scsi: pm80xx: Enable upper inbound, outbound queues
scsi: pm80xx: Mask and unmask upper interrupt vectors 32-63
Revert "scsi: scsi_debug: Address races following module load"
* Couple of fixes related to handling unsigned value of the pin from ACPI
The following is an automated git shortlog grouped by driver:
gpiolib:
- acpi: Convert type for pin to be unsigned
- acpi: use correct format characters
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Merge tag 'intel-gpio-v5.18-2' of gitolite.kernel.org:pub/scm/linux/kernel/git/andy/linux-gpio-intel into gpio/for-current
intel-gpio for v5.18-2
* Couple of fixes related to handling unsigned value of the pin from ACPI
gpiolib:
- acpi: Convert type for pin to be unsigned
- acpi: use correct format characters
In order to immediately overwrite the old key on the stack, before
servicing a userspace request for bytes, we use the remaining 32 bytes
of block 0 as the key. This means moving indices 8,9,a,b,c,d,e,f ->
4,5,6,7,8,9,a,b. Since 4 < 8, for the kernel implementations of
memcpy(), this doesn't actually appear to be a problem in practice. But
relying on that characteristic seems a bit brittle. So let's change that
to a proper memmove(), which is the by-the-books way of handling
overlapping memory copies.
Reviewed-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Fast coprocessor exception handler saves a3..a6, but coprocessor context
load/store code uses a4..a7 as temporaries, potentially clobbering a7.
'Potentially' because coprocessor state load/store macros may not use
all four temporary registers (and neither FPU nor HiFi macros do).
Use a3..a6 as intended.
Cc: stable@vger.kernel.org
Fixes: c658eac628aa ("[XTENSA] Add support for configurable registers and coprocessors")
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
