Audient iD14 (2708:0002) may get a control message error that
interferes the operation e.g. with alsactl. Add the quirk to ignore
such errors like other devices.
Propagating errors to dependent fences is broken and can lead to errors
from one client ending up in another. In commit 3761baae908a ("Revert
"drm/i915: Propagate errors on awaiting already signaled fences""), we
attempted to get rid of fence error propagation but missed the case
added in commit 8e9f84cf5cac ("drm/i915/gt: Propagate change in error
status to children on unhold"). Revert that one too. This error was
found by an up-and-coming selftest which triggers a reset during
request cancellation and verifies that subsequent requests complete
successfully.
Further discussion reveals that this feature is severely broken
and needs to be reverted ASAP.
GPU reset can never be delayed by userspace even for debugging or
otherwise we can run into in kernel deadlocks.
Signed-off-by: Christian König <christian.koenig@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Acked-by: Nirmoy Das <nirmoy.das@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
After commit 77a7300abad7 ("of/irq: Get rid of NO_IRQ usage"),
no irq case has been removed, irq_of_parse_and_map() will return
0 in all cases when get error from parse and map an interrupt into
linux virq space.
amba_device_register() is only used on no-DT initialization, see
s3c64xx_pl080_init() arch/arm/mach-s3c/pl080.c
ep93xx_init_devices() arch/arm/mach-ep93xx/core.c
Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This reverts commit a77ebdd9f553. It turns out that the VPU domain has no
different requirements, even though the downstream ATF implementation seems
to suggest otherwise. Powering on the domain with the reset asserted works
fine. As the changed sequence has caused sporadic issues with the GPU
domains, just revert the change to go back to the working sequence.
Cc: <stable@vger.kernel.org> # 5.14 Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Acked-by: Peng Fan <peng.fan@nxp.com> Tested-by: Adam Ford <aford173@gmail.com> #imx8mm-beacon Signed-off-by: Shawn Guo <shawnguo@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The bounds checking in avc_ca_pmt() is not strict enough. It should
be checking "read_pos + 4" because it's reading 5 bytes. If the
"es_info_length" is non-zero then it reads a 6th byte so there needs to
be an additional check for that.
I also added checks for the "write_pos". I don't think these are
required because "read_pos" and "write_pos" are tied together so
checking one ought to be enough. But they make the code easier to
understand for me. The check on write_pos is:
if (write_pos + 4 >= sizeof(c->operand) - 4) {
The first "+ 4" is because we're writing 5 bytes and the last " - 4"
is to leave space for the CRC.
The other problem is that "length" can be invalid. It comes from
"data_length" in fdtv_ca_pmt().
Cc: stable@vger.kernel.org Reported-by: Luo Likang <luolikang@nsfocus.com> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Everything except the first 32 bits was lost when the pause flags were
added. This makes the 50000baseCR2 mode flag (bit 34) not appear.
I have tested this with a 10G card (SFN5122F-R7) by modifying it to
return a non-legacy link mode (10000baseCR).
Signed-off-by: Erik Ekman <erik@kryo.se> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linus Torvalds [Sun, 31 Oct 2021 18:24:06 +0000 (11:24 -0700)]
Merge tag 'perf-tools-fixes-for-v5.15-2021-10-31' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
Pull perf tools fixes from Arnaldo Carvalho de Melo:
- Fix compilation of callchain related code on powerpc with gcc11+
- Fix PERF_SAMPLE_WEIGHT_STRUCT support in 'perf script'
- Check session->header.env.arch before using it, fixing a segmentation
fault
- Suppress 'rm dlfilter' build messages
* tag 'perf-tools-fixes-for-v5.15-2021-10-31' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
perf script: Fix PERF_SAMPLE_WEIGHT_STRUCT support
perf callchain: Fix compilation on powerpc with gcc11+
perf script: Check session->header.env.arch before using it
perf build: Suppress 'rm dlfilter' build message
Linus Torvalds [Sun, 31 Oct 2021 18:19:02 +0000 (11:19 -0700)]
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
- Fixes for s390 interrupt delivery
- Fixes for Xen emulator bugs showing up as debug kernel WARNs
- Fix another issue with SEV/ES string I/O VMGEXITs
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: x86: Take srcu lock in post_kvm_run_save()
KVM: SEV-ES: fix another issue with string I/O VMGEXITs
KVM: x86/xen: Fix kvm_xen_has_interrupt() sleeping in kvm_vcpu_block()
KVM: x86: switch pvclock_gtod_sync_lock to a raw spinlock
KVM: s390: preserve deliverable_mask in __airqs_kick_single_vcpu
KVM: s390: clear kicked_mask before sleeping again
Kan Liang [Wed, 29 Sep 2021 15:38:13 +0000 (08:38 -0700)]
perf script: Fix PERF_SAMPLE_WEIGHT_STRUCT support
-F weight in perf script is broken.
# ./perf mem record
# ./perf script -F weight
Samples for 'dummy:HG' event do not have WEIGHT attribute set. Cannot
print 'weight' field.
The sample type, PERF_SAMPLE_WEIGHT_STRUCT, is an alternative of the
PERF_SAMPLE_WEIGHT sample type. They share the same space, weight. The
lower 32 bits are exactly the same for both sample type. The higher 32
bits may be different for different architecture. For a new kernel on
x86, the PERF_SAMPLE_WEIGHT_STRUCT is used. For an old kernel or other
ARCHs, the PERF_SAMPLE_WEIGHT is used.
With -F weight, current perf script will only check the input string
"weight" with the PERF_SAMPLE_WEIGHT sample type. Because the commit ea8d0ed6eae3 ("perf tools: Support PERF_SAMPLE_WEIGHT_STRUCT") didn't
update the PERF_SAMPLE_WEIGHT_STRUCT sample type for perf script. For a
new kernel on x86, the check fails.
Use PERF_SAMPLE_WEIGHT_TYPE, which supports both sample types, to
replace PERF_SAMPLE_WEIGHT
Fixes: ea8d0ed6eae37b01 ("perf tools: Support PERF_SAMPLE_WEIGHT_STRUCT") Reported-by: Joe Mario <jmario@redhat.com> Reviewed-by: Kajol Jain <kjain@linux.ibm.com> Signed-off-by: Kan Liang <kan.liang@linux.intel.com> Tested-by: Jiri Olsa <jolsa@redhat.com> Tested-by: Joe Mario <jmario@redhat.com> Acked-by: Jiri Olsa <jolsa@redhat.com> Acked-by: Joe Mario <jmario@redhat.com> Cc: Andi Kleen <ak@linux.intel.com> Link: https://lore.kernel.org/r/1632929894-102778-1-git-send-email-kan.liang@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Jiri Olsa [Tue, 28 Sep 2021 19:52:53 +0000 (21:52 +0200)]
perf callchain: Fix compilation on powerpc with gcc11+
Got following build fail on powerpc:
CC arch/powerpc/util/skip-callchain-idx.o
In function ‘check_return_reg’,
inlined from ‘check_return_addr’ at arch/powerpc/util/skip-callchain-idx.c:213:7,
inlined from ‘arch_skip_callchain_idx’ at arch/powerpc/util/skip-callchain-idx.c:265:7:
arch/powerpc/util/skip-callchain-idx.c:54:18: error: ‘dwarf_frame_register’ accessing 96 bytes \
in a region of size 64 [-Werror=stringop-overflow=]
54 | result = dwarf_frame_register(frame, ra_regno, ops_mem, &ops, &nops);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/powerpc/util/skip-callchain-idx.c: In function ‘arch_skip_callchain_idx’:
arch/powerpc/util/skip-callchain-idx.c:54:18: note: referencing argument 3 of type ‘Dwarf_Op *’
In file included from /usr/include/elfutils/libdwfl.h:32,
from arch/powerpc/util/skip-callchain-idx.c:10:
/usr/include/elfutils/libdw.h:1069:12: note: in a call to function ‘dwarf_frame_register’
1069 | extern int dwarf_frame_register (Dwarf_Frame *frame, int regno,
| ^~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
The dwarf_frame_register args changed with [1],
Updating ops_mem accordingly.
Song Liu [Mon, 4 Oct 2021 05:32:38 +0000 (22:32 -0700)]
perf script: Check session->header.env.arch before using it
When perf.data is not written cleanly, we would like to process existing
data as much as possible (please see f_header.data.size == 0 condition
in perf_session__read_header). However, perf.data with partial data may
crash perf. Specifically, we see crash in 'perf script' for NULL
session->header.env.arch.
Fix this by checking session->header.env.arch before using it to determine
native_arch. Also split the if condition so it is easier to read.
Committer notes:
If it is a pipe, we already assume is a native arch, so no need to check
session->header.env.arch.
Adrian Hunter [Thu, 30 Sep 2021 06:28:49 +0000 (09:28 +0300)]
perf build: Suppress 'rm dlfilter' build message
The following build message:
rm dlfilters/dlfilter-test-api-v0.o
is unwanted.
The object file is being treated as an intermediate file and being
automatically removed. Mark the object file as .SECONDARY to prevent
removal and hence the message.
Linus Torvalds [Sat, 30 Oct 2021 22:56:38 +0000 (15:56 -0700)]
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Three small fixes, all in drivers, and one sizeable update to the UFS
driver to remove the HPB 2.0 feature that has been objected to by Jens
and Christoph.
Although the UFS patch is large and last minute, it's essentially the
least intrusive way of resolving the objections in time for the 5.15
release"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: ufs: ufshpb: Remove HPB2.0 flows
scsi: mpt3sas: Fix reference tag handling for WRITE_INSERT
scsi: ufs: ufs-exynos: Correct timeout value setting registers
scsi: ibmvfc: Fix up duplicate response detection
Linus Torvalds [Sat, 30 Oct 2021 16:55:46 +0000 (09:55 -0700)]
Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fix from Stephen Boyd:
"One fix for the composite clk that broke when we changed this clk type
to use the determine_rate instead of round_rate clk op by default.
This caused lots of problems on Rockchip SoCs because they heavily use
the composite clk code to model the clk tree"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: composite: Also consider .determine_rate for rate + mux composites
Linus Torvalds [Sat, 30 Oct 2021 16:28:24 +0000 (09:28 -0700)]
Merge tag 'riscv-for-linus-5.15-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
"These are pretty late, but they do fix concrete issues.
- ensure the trap vector's address is aligned.
- avoid re-populating the KASAN shadow memory.
- allow kasan to build without warnings, which have recently become
errors"
* tag 'riscv-for-linus-5.15-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: Fix asan-stack clang build
riscv: Do not re-populate shadow memory with kasan_populate_early_shadow
riscv: fix misalgned trap vector base address
Avri Altman [Sat, 30 Oct 2021 06:23:01 +0000 (09:23 +0300)]
scsi: ufs: ufshpb: Remove HPB2.0 flows
The Host Performance Buffer feature allows UFS read commands to carry the
physical media addresses along with the LBAs, thus allowing less internal
L2P-table switches in the device. HPB1.0 allowed a single LBA, while
HPB2.0 increases this capacity up to 255 blocks.
Carrying more than a single record, the read operation is no longer purely
of type "read" but a "hybrid" command: Writing the physical address to the
device in one operation and reading back the required payload in another.
The JEDEC HPB spec defines two commands for this operation:
HPB-WRITE-BUFFER (0x2) to write the physical addresses to device, and
HPB-READ to read the payload.
With the current HPB design the UFS driver has no alternative but to divide
the READ request into 2 separate commands: HPB-WRITE-BUFFER and HPB-READ.
This causes a great deal of aggravation to the block layer guys who
demanded that we completely revert the entire HPB driver regardless of the
huge amount of corporate effort already invested in it.
As a compromise, remove only the pieces that implement the 2.0
specification. This is done as a matter of urgency for the final 5.15
release.
Link: https://lore.kernel.org/r/20211030062301.248-1-avri.altman@wdc.com Tested-by: Avri Altman <avri.altman@wdc.com> Tested-by: Bean Huo <beanhuo@micron.com> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Bean Huo <beanhuo@micron.com> Co-developed-by: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Avri Altman <avri.altman@wdc.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Linus Torvalds [Sat, 30 Oct 2021 00:35:56 +0000 (17:35 -0700)]
Merge tag 'powerpc-5.15-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Three commits fixing some issues introduced with the recent IOMMU
changes we merged.
Thanks to Alexey Kardashevskiy"
* tag 'powerpc-5.15-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/pseries/iommu: Create huge DMA window if no MMIO32 is present
powerpc/pseries/iommu: Check if the default window in use before removing it
powerpc/pseries/iommu: Use correct vfree for it_map
Linus Torvalds [Sat, 30 Oct 2021 00:04:38 +0000 (17:04 -0700)]
Merge tag 'gpio-fixes-for-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
- fix the return value check when parsing the ngpios property in
gpio-xgs-iproc
- check the return value of bgpio_init() in gpio-mlxbf2
* tag 'gpio-fixes-for-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: mlxbf2.c: Add check for bgpio_init failure
gpio: xgs-iproc: fix parsing of ngpios property
Linus Torvalds [Fri, 29 Oct 2021 18:10:29 +0000 (11:10 -0700)]
Merge tag 'block-5.15-2021-10-29' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
- NVMe pull request:
- fix nvmet-tcp header digest verification (Amit Engel)
- fix a memory leak in nvmet-tcp when releasing a queue (Maurizio
Lombardi)
- fix nvme-tcp H2CData PDU send accounting again (Sagi Grimberg)
- fix digest pointer calculation in nvme-tcp and nvmet-tcp (Varun
Prakash)
- fix possible nvme-tcp req->offset corruption (Varun Prakash)
- Queue drain ordering fix (Ming)
- Partition check regression for zoned devices (Shin'ichiro)
- Zone queue restart fix (Naohiro)
* tag 'block-5.15-2021-10-29' of git://git.kernel.dk/linux-block:
block: Fix partition check for host-aware zoned block devices
nvmet-tcp: fix header digest verification
nvmet-tcp: fix data digest pointer calculation
nvme-tcp: fix data digest pointer calculation
nvme-tcp: fix possible req->offset corruption
block: schedule queue restart after BLK_STS_ZONE_RESOURCE
block: drain queue after disk is removed from sysfs
nvme-tcp: fix H2CData PDU send accounting (again)
nvmet-tcp: fix a memory leak when releasing a queue
scsi: mpt3sas: Fix reference tag handling for WRITE_INSERT
Testing revealed a problem with how the reference tag was handled for
a WRITE_INSERT operation. The SCSI_PROT_REF_CHECK flag is not set when
the controller is asked to generate the protection information
(i.e. not DIX). And as a result the initial reference tag would not be
set in the WRITE_INSERT case.
Separate handling of the REF_CHECK and REF_INCREMENT flags to align
with both the DIX spec and the MPI implementation.
Linus Torvalds [Fri, 29 Oct 2021 17:54:44 +0000 (10:54 -0700)]
Merge tag 'mmc-v5.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC fixes from Ulf Hansson:
- tmio: Re-enable card irqs after a reset
- mtk-sd: Fixup probing of cqhci for crypto
- cqhci: Fix support for suspend/resume
- vub300: Fix control-message timeouts
- dw_mmc-exynos: Fix support for tuning
- winbond: Silences build errors on M68K
- sdhci-esdhc-imx: Fix support for tuning
- sdhci-pci: Read card detect from ACPI for Intel Merrifield
- sdhci: Fix eMMC support for Thundercomm TurboX CM2290
* tag 'mmc-v5.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: tmio: reenable card irqs after the reset callback
mmc: mediatek: Move cqhci init behind ungate clock
mmc: cqhci: clear HALT state after CQE enable
mmc: vub300: fix control-message timeouts
mmc: dw_mmc: exynos: fix the finding clock sample value
mmc: winbond: don't build on M68K
mmc: sdhci-esdhc-imx: clear the buffer_read_ready to reset standard tuning circuit
mmc: sdhci-pci: Read card detect from ACPI for Intel Merrifield
mmc: sdhci: Map more voltage level to SDHCI_POWER_330
Linus Torvalds [Fri, 29 Oct 2021 17:46:59 +0000 (10:46 -0700)]
Merge tag 'for-5.15-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
"Last minute fixes for crash on 32bit architectures when compression is
in use. It's a regression introduced in 5.15-rc and I'd really like
not let this into the final release, fixes via stable trees would add
unnecessary delay.
The problem is on 32bit architectures with highmem enabled, the pages
for compression may need to be kmapped, while the patches removed that
as we don't use GFP_HIGHMEM allocations anymore. The pages that don't
come from local allocation still may be from highmem. Despite being on
32bit there's enough such ARM machines in use so it's not a marginal
issue.
I did full reverts of the patches one by one instead of a huge one.
There's one exception for the "lzo" revert as there was an
intermediate patch touching the same code to make it compatible with
subpage. I can't revert that one too, so the revert in lzo.c is
manual. Qu Wenruo has worked on that with me and verified the changes"
* tag 'for-5.15-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
Revert "btrfs: compression: drop kmap/kunmap from lzo"
Revert "btrfs: compression: drop kmap/kunmap from zlib"
Revert "btrfs: compression: drop kmap/kunmap from zstd"
Revert "btrfs: compression: drop kmap/kunmap from generic helpers"
Linus Torvalds [Fri, 29 Oct 2021 17:41:07 +0000 (10:41 -0700)]
Merge tag 'trace-v5.15-rc6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing comment fixes from Steven Rostedt:
- Some bots have informed me that some of the ftrace functions
kernel-doc has formatting issues.
- Also, fix my snake instinct.
* tag 'trace-v5.15-rc6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing: Fix misspelling of "missing"
ftrace: Fix kernel-doc formatting issues
Linus Torvalds [Fri, 29 Oct 2021 17:03:07 +0000 (10:03 -0700)]
Merge branch 'akpm' (patches from Andrew)
Merge misc fixes from Andrew Morton:
"11 patches.
Subsystems affected by this patch series: mm (memcg, memory-failure,
oom-kill, secretmem, vmalloc, hugetlb, damon, and tools), and ocfs2"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
tools/testing/selftests/vm/split_huge_page_test.c: fix application of sizeof to pointer
mm/damon/core-test: fix wrong expectations for 'damon_split_regions_of()'
mm: khugepaged: skip huge page collapse for special files
mm, thp: bail out early in collapse_file for writeback page
mm/vmalloc: fix numa spreading for large hash tables
mm/secretmem: avoid letting secretmem_users drop to zero
ocfs2: fix race between searching chunks and release journal_head from buffer_head
mm/oom_kill.c: prevent a race between process_mrelease and exit_mmap
mm: filemap: check if THP has hwpoisoned subpage for PMD page fault
mm: hwpoison: remove the unnecessary THP check
memcg: page_alloc: skip bulk allocator for __GFP_ACCOUNT
Alexandre Ghiti [Fri, 29 Oct 2021 04:59:27 +0000 (06:59 +0200)]
riscv: Fix asan-stack clang build
Nathan reported that because KASAN_SHADOW_OFFSET was not defined in
Kconfig, it prevents asan-stack from getting disabled with clang even
when CONFIG_KASAN_STACK is disabled: fix this by defining the
corresponding config.
Alexandre Ghiti [Fri, 29 Oct 2021 04:59:26 +0000 (06:59 +0200)]
riscv: Do not re-populate shadow memory with kasan_populate_early_shadow
When calling this function, all the shadow memory is already populated
with kasan_early_shadow_pte which has PAGE_KERNEL protection.
kasan_populate_early_shadow write-protects the mapping of the range
of addresses passed in argument in zero_pte_populate, which actually
write-protects all the shadow memory mapping since kasan_early_shadow_pte
is used for all the shadow memory at this point. And then when using
memblock API to populate the shadow memory, the first write access to the
kernel stack triggers a trap. This becomes visible with the next commit
that contains a fix for asan-stack.
We already manually populate all the shadow memory in kasan_early_init
and we write-protect kasan_early_shadow_pte at the end of kasan_init
which makes the calls to kasan_populate_early_shadow superfluous so
we can remove them.
The kmaps in compression code are still needed and cause crashes on
32bit machines (ARM, x86). Reproducible eg. by running fstest btrfs/004
with enabled LZO or ZSTD compression.
The revert does not apply cleanly due to changes in a6e66e6f8c1b
("btrfs: rework lzo_decompress_bio() to make it subpage compatible")
that reworked the page iteration so the revert is done to be equivalent
to the original code.
The kmaps in compression code are still needed and cause crashes on
32bit machines (ARM, x86). Reproducible eg. by running fstest btrfs/004
with enabled LZO or ZSTD compression.
The kmaps in compression code are still needed and cause crashes on
32bit machines (ARM, x86). Reproducible eg. by running fstest btrfs/004
with enabled LZO or ZSTD compression.
Example stacktrace with ZSTD on a 32bit ARM machine:
Unable to handle kernel NULL pointer dereference at virtual address 00000000
pgd = c4159ed3
[00000000] *pgd=00000000
Internal error: Oops: 5 [#1] PREEMPT SMP ARM
Modules linked in:
CPU: 0 PID: 210 Comm: kworker/u2:3 Not tainted 5.14.0-rc79+ #12
Hardware name: Allwinner sun4i/sun5i Families
Workqueue: btrfs-delalloc btrfs_work_helper
PC is at mmiocpy+0x48/0x330
LR is at ZSTD_compressStream_generic+0x15c/0x28c
(mmiocpy) from [<c0629648>] (ZSTD_compressStream_generic+0x15c/0x28c)
(ZSTD_compressStream_generic) from [<c06297dc>] (ZSTD_compressStream+0x64/0xa0)
(ZSTD_compressStream) from [<c049444c>] (zstd_compress_pages+0x170/0x488)
(zstd_compress_pages) from [<c0496798>] (btrfs_compress_pages+0x124/0x12c)
(btrfs_compress_pages) from [<c043c068>] (compress_file_range+0x3c0/0x834)
(compress_file_range) from [<c043c4ec>] (async_cow_start+0x10/0x28)
(async_cow_start) from [<c0475c3c>] (btrfs_work_helper+0x100/0x230)
(btrfs_work_helper) from [<c014ef68>] (process_one_work+0x1b4/0x418)
(process_one_work) from [<c014f210>] (worker_thread+0x44/0x524)
(worker_thread) from [<c0156aa4>] (kthread+0x180/0x1b0)
(kthread) from [<c0100150>]
SeongJae Park [Thu, 28 Oct 2021 21:36:33 +0000 (14:36 -0700)]
mm/damon/core-test: fix wrong expectations for 'damon_split_regions_of()'
Kunit test cases for 'damon_split_regions_of()' expects the number of
regions after calling the function will be same to their request
('nr_sub'). However, the requested number is just an upper-limit,
because the function randomly decides the size of each sub-region.
This fixes the wrong expectation.
Link: https://lkml.kernel.org/r/20211028090628.14948-1-sj@kernel.org Fixes: 17ccae8bb5c9 ("mm/damon: add kunit tests") Signed-off-by: SeongJae Park <sj@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Yang Shi [Thu, 28 Oct 2021 21:36:30 +0000 (14:36 -0700)]
mm: khugepaged: skip huge page collapse for special files
The read-only THP for filesystems will collapse THP for files opened
readonly and mapped with VM_EXEC. The intended usecase is to avoid TLB
misses for large text segments. But it doesn't restrict the file types
so a THP could be collapsed for a non-regular file, for example, block
device, if it is opened readonly and mapped with EXEC permission. This
may cause bugs, like [1] and [2].
This is definitely not the intended usecase, so just collapse THP for
regular files in order to close the attack surface.
Rongwei Wang [Thu, 28 Oct 2021 21:36:27 +0000 (14:36 -0700)]
mm, thp: bail out early in collapse_file for writeback page
Currently collapse_file does not explicitly check PG_writeback, instead,
page_has_private and try_to_release_page are used to filter writeback
pages. This does not work for xfs with blocksize equal to or larger
than pagesize, because in such case xfs has no page->private.
This makes collapse_file bail out early for writeback page. Otherwise,
xfs end_page_writeback will panic as follows.
Link: https://lkml.kernel.org/r/20211022023052.33114-1-rongwei.wang@linux.alibaba.com Fixes: 99cb0dbd47a1 ("mm,thp: add read-only THP support for (non-shmem) FS") Signed-off-by: Rongwei Wang <rongwei.wang@linux.alibaba.com> Signed-off-by: Xu Yu <xuyu@linux.alibaba.com> Suggested-by: Yang Shi <shy828301@gmail.com> Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org> Reviewed-by: Yang Shi <shy828301@gmail.com> Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Song Liu <song@kernel.org> Cc: William Kucharski <william.kucharski@oracle.com> Cc: Hugh Dickins <hughd@google.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Chen Wandun [Thu, 28 Oct 2021 21:36:24 +0000 (14:36 -0700)]
mm/vmalloc: fix numa spreading for large hash tables
Eric Dumazet reported a strange numa spreading info in [1], and found
commit 121e6f3258fe ("mm/vmalloc: hugepage vmalloc mappings") introduced
this issue [2].
Dig into the difference before and after this patch, page allocation has
some difference:
before:
alloc_large_system_hash
__vmalloc
__vmalloc_node(..., NUMA_NO_NODE, ...)
__vmalloc_node_range
__vmalloc_area_node
alloc_page /* because NUMA_NO_NODE, so choose alloc_page branch */
alloc_pages_current
alloc_page_interleave /* can be proved by print policy mode */
after:
alloc_large_system_hash
__vmalloc
__vmalloc_node(..., NUMA_NO_NODE, ...)
__vmalloc_node_range
__vmalloc_area_node
alloc_pages_node /* choose nid by nuam_mem_id() */
__alloc_pages_node(nid, ....)
So after commit 121e6f3258fe ("mm/vmalloc: hugepage vmalloc mappings"),
it will allocate memory in current node instead of interleaving allocate
memory.
Kees Cook [Thu, 28 Oct 2021 21:36:21 +0000 (14:36 -0700)]
mm/secretmem: avoid letting secretmem_users drop to zero
Quoting Dmitry:
"refcount_inc() needs to be done before fd_install(). After
fd_install() finishes, the fd can be used by userspace and
we can have secret data in memory before the refcount_inc().
A straightforward misuse where a user will predict the returned
fd in another thread before the syscall returns and will use it
to store secret data is somewhat dubious because such a user just
shoots themself in the foot.
But a more interesting misuse would be to close the predicted fd
and decrement the refcount before the corresponding refcount_inc,
this way one can briefly drop the refcount to zero while there are
other users of secretmem."
When ocfs2_test_bg_bit_allocatable() called bh2jh(bg_bh), the
bg_bh->b_private NULL as jbd2_journal_put_journal_head() raced and
released the jounal head from the buffer head. Needed to take bit lock
for the bit 'BH_JournalHead' to fix this race.
Link: https://lkml.kernel.org/r/1634820718-6043-1-git-send-email-gautham.ananthakrishna@oracle.com Signed-off-by: Gautham Ananthakrishna <gautham.ananthakrishna@oracle.com> Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com> Cc: <rajesh.sivaramasubramaniom@oracle.com> Cc: Mark Fasheh <mark@fasheh.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Junxiao Bi <junxiao.bi@oracle.com> Cc: Changwei Ge <gechangwei@live.cn> Cc: Gang He <ghe@suse.com> Cc: Jun Piao <piaojun@huawei.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/oom_kill.c: prevent a race between process_mrelease and exit_mmap
Race between process_mrelease and exit_mmap, where free_pgtables is
called while __oom_reap_task_mm is in progress, leads to kernel crash
during pte_offset_map_lock call. oom-reaper avoids this race by setting
MMF_OOM_VICTIM flag and causing exit_mmap to take and release
mmap_write_lock, blocking it until oom-reaper releases mmap_read_lock.
Reusing MMF_OOM_VICTIM for process_mrelease would be the simplest way to
fix this race, however that would be considered a hack. Fix this race
by elevating mm->mm_users and preventing exit_mmap from executing until
process_mrelease is finished. Patch slightly refactors the code to
adapt for a possible mmget_not_zero failure.
This fix has considerable negative impact on process_mrelease
performance and will likely need later optimization.
Link: https://lkml.kernel.org/r/20211022014658.263508-1-surenb@google.com Fixes: 884a7e5964e0 ("mm: introduce process_mrelease system call") Signed-off-by: Suren Baghdasaryan <surenb@google.com> Acked-by: Michal Hocko <mhocko@suse.com> Cc: David Rientjes <rientjes@google.com> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Roman Gushchin <guro@fb.com> Cc: Rik van Riel <riel@surriel.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Christian Brauner <christian@brauner.io> Cc: Christoph Hellwig <hch@infradead.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: David Hildenbrand <david@redhat.com> Cc: Jann Horn <jannh@google.com> Cc: Shakeel Butt <shakeelb@google.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Christian Brauner <christian.brauner@ubuntu.com> Cc: Florian Weimer <fweimer@redhat.com> Cc: Jan Engelhardt <jengelh@inai.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Yang Shi [Thu, 28 Oct 2021 21:36:11 +0000 (14:36 -0700)]
mm: filemap: check if THP has hwpoisoned subpage for PMD page fault
When handling shmem page fault the THP with corrupted subpage could be
PMD mapped if certain conditions are satisfied. But kernel is supposed
to send SIGBUS when trying to map hwpoisoned page.
There are two paths which may do PMD map: fault around and regular
fault.
Before commit f9ce0be71d1f ("mm: Cleanup faultaround and finish_fault()
codepaths") the thing was even worse in fault around path. The THP
could be PMD mapped as long as the VMA fits regardless what subpage is
accessed and corrupted. After this commit as long as head page is not
corrupted the THP could be PMD mapped.
In the regular fault path the THP could be PMD mapped as long as the
corrupted page is not accessed and the VMA fits.
This loophole could be fixed by iterating every subpage to check if any
of them is hwpoisoned or not, but it is somewhat costly in page fault
path.
So introduce a new page flag called HasHWPoisoned on the first tail
page. It indicates the THP has hwpoisoned subpage(s). It is set if any
subpage of THP is found hwpoisoned by memory failure and after the
refcount is bumped successfully, then cleared when the THP is freed or
split.
The soft offline path doesn't need this since soft offline handler just
marks a subpage hwpoisoned when the subpage is migrated successfully.
But shmem THP didn't get split then migrated at all.
Link: https://lkml.kernel.org/r/20211020210755.23964-3-shy828301@gmail.com Fixes: 800d8c63b2e9 ("shmem: add huge pages support") Signed-off-by: Yang Shi <shy828301@gmail.com> Reviewed-by: Naoya Horiguchi <naoya.horiguchi@nec.com> Suggested-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Hugh Dickins <hughd@google.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Oscar Salvador <osalvador@suse.de> Cc: Peter Xu <peterx@redhat.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Yang Shi [Thu, 28 Oct 2021 21:36:07 +0000 (14:36 -0700)]
mm: hwpoison: remove the unnecessary THP check
When handling THP hwpoison checked if the THP is in allocation or free
stage since hwpoison may mistreat it as hugetlb page. After commit 415c64c1453a ("mm/memory-failure: split thp earlier in memory error
handling") the problem has been fixed, so this check is no longer
needed. Remove it. The side effect of the removal is hwpoison may
report unsplit THP instead of unknown error for shmem THP. It seems not
like a big deal.
The following patch "mm: filemap: check if THP has hwpoisoned subpage
for PMD page fault" depends on this, which fixes shmem THP with
hwpoisoned subpage(s) are mapped PMD wrongly. So this patch needs to be
backported to -stable as well.
Link: https://lkml.kernel.org/r/20211020210755.23964-2-shy828301@gmail.com Signed-off-by: Yang Shi <shy828301@gmail.com> Suggested-by: Naoya Horiguchi <naoya.horiguchi@nec.com> Acked-by: Naoya Horiguchi <naoya.horiguchi@nec.com> Cc: Hugh Dickins <hughd@google.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Oscar Salvador <osalvador@suse.de> Cc: Peter Xu <peterx@redhat.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Shakeel Butt [Thu, 28 Oct 2021 21:36:04 +0000 (14:36 -0700)]
memcg: page_alloc: skip bulk allocator for __GFP_ACCOUNT
Commit 5c1f4e690eec ("mm/vmalloc: switch to bulk allocator in
__vmalloc_area_node()") switched to bulk page allocator for order 0
allocation backing vmalloc. However bulk page allocator does not
support __GFP_ACCOUNT allocations and there are several users of
kvmalloc(__GFP_ACCOUNT).
For now make __GFP_ACCOUNT allocations bypass bulk page allocator. In
future if there is workload that can be significantly improved with the
bulk page allocator with __GFP_ACCCOUNT support, we can revisit the
decision.
Link: https://lkml.kernel.org/r/20211014151607.2171970-1-shakeelb@google.com Fixes: 5c1f4e690eec ("mm/vmalloc: switch to bulk allocator in __vmalloc_area_node()") Signed-off-by: Shakeel Butt <shakeelb@google.com> Reported-by: Vasily Averin <vvs@virtuozzo.com> Tested-by: Vasily Averin <vvs@virtuozzo.com> Acked-by: David Hildenbrand <david@redhat.com> Acked-by: Michal Hocko <mhocko@suse.com> Acked-by: Roman Gushchin <guro@fb.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Thu, 28 Oct 2021 23:50:25 +0000 (16:50 -0700)]
Merge tag 'libnvdimm-fixes-5.15-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm fix from Dan Williams:
- Fix a regression introduced in v5.15-rc6 that caused nvdimm namespace
shutdown to hang due to reworks in the block layer q_usage_count.
* tag 'libnvdimm-fixes-5.15-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
nvdimm/pmem: stop using q_usage_count as external pgmap refcount
Wolfram Sang [Thu, 28 Oct 2021 19:51:49 +0000 (21:51 +0200)]
mmc: tmio: reenable card irqs after the reset callback
The reset callback may clear the internal card detect interrupts, so
make sure to reenable them if needed.
Fixes: b4d86f37eacb ("mmc: renesas_sdhi: do hard reset if possible") Reported-by: Biju Das <biju.das.jz@bp.renesas.com> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20211028195149.8003-1-wsa+renesas@sang-engineering.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Linus Torvalds [Thu, 28 Oct 2021 19:17:01 +0000 (12:17 -0700)]
Merge tag 'drm-fixes-2021-10-29' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Quiet but not too quiet, I blame Halloween.
The first set of amdgpu fixes missed last week, hence why this has a
few more of them, it's mostly display fixes for new GPUs and some
debugfs OOB stuff.
The i915 patches have one to remove a tracepoint possible issue before
it's a real problem, the others around cflush and display are cc'ed to
stable as well.
Otherwise it's just a few misc fixes.
Summary:
MAINTAINERS:
- Fix the path pattern
ttm:
- Fix fence leak in ttm_transfered_destroy.
core:
- Add GPD Win3 rotation quirk
i915:
- Remove unconditional clflushes
- Fix oops on boot due to sync state on disabled DP encoders
- Revert backend specific data added to tracepoints
- Remove useless and incorrect memory frequence calculation
panel:
- Add quirk for Aya Neo 2021
seltest:
- Reset property count for each drm damage selftest so full run will
work correctly.
amdgpu:
- Fix two potential out of bounds writes in debugfs
- Fix revision handling for Yellow Carp
- Display fixes for Yellow Carp
- Display fixes for DCN 3.1"
* tag 'drm-fixes-2021-10-29' of git://anongit.freedesktop.org/drm/drm: (21 commits)
MAINTAINERS: dri-devel is for all of drivers/gpu
drm/i915: Revert 'guc_id' from i915_request tracepoint
drm/amd/display: Fix deadlock when falling back to v2 from v3
drm/amd/display: Fallback to clocks which meet requested voltage on DCN31
drm/amdgpu: Fix even more out of bound writes from debugfs
drm: panel-orientation-quirks: Add quirk for GPD Win3
drm/i915/dp: Skip the HW readout of DPCD on disabled encoders
drm/i915: Catch yet another unconditioal clflush
drm/i915: Convert unconditional clflush to drm_clflush_virt_range()
drm/i915/selftests: Properly reset mock object propers for each test
drm: panel-orientation-quirks: Add quirk for Aya Neo 2021
drm/ttm: fix memleak in ttm_transfered_destroy
drm/amdgpu: support B0&B1 external revision id for yellow carp
drm/amd/display: Moved dccg init to after bios golden init
drm/amd/display: Increase watermark latencies for DCN3.1
drm/amd/display: increase Z9 latency to workaround underflow in Z9
drm/amd/display: Require immediate flip support for DCN3.1 planes
drm/amd/display: Fix prefetch bandwidth calculation for DCN3.1
drm/amd/display: Limit display scaling to up to true 4k for DCN 3.1
drm/amdgpu: fix out of bounds write
...
Daniel Vetter [Thu, 28 Oct 2021 17:08:57 +0000 (19:08 +0200)]
MAINTAINERS: dri-devel is for all of drivers/gpu
Somehow we only have a list of subdirectories, which apparently made
it harder for folks to find the gpu maintainers. Fix that.
References: https://lore.kernel.org/dri-devel/YXrAAZlxxStNFG%2FK@phenom.ffwll.local/ Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Steven Rostedt <rostedt@goodmis.org> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211028170857.4029606-1-daniel.vetter@ffwll.ch
Dave Airlie [Thu, 28 Oct 2021 18:46:14 +0000 (04:46 +1000)]
Merge tag 'drm-intel-fixes-2021-10-28' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
drm/i915 fixes for v5.15 final:
- Remove unconditional clflushes
- Fix oops on boot due to sync state on disabled DP encoders
- Revert backend specific data added to tracepoints
- Remove useless and incorrect memory frequence calculation
Linus Torvalds [Thu, 28 Oct 2021 17:17:31 +0000 (10:17 -0700)]
Merge tag 'net-5.15-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from WiFi (mac80211), and BPF.
Current release - regressions:
- skb_expand_head: adjust skb->truesize to fix socket memory
accounting
- mptcp: fix corrupt receiver key in MPC + data + checksum
Previous releases - regressions:
- multicast: calculate csum of looped-back and forwarded packets
- cgroup: fix memory leak caused by missing cgroup_bpf_offline
- cfg80211: fix management registrations locking, prevent list
corruption
- cfg80211: correct false positive in bridge/4addr mode check
- tcp_bpf: fix race in the tcp_bpf_send_verdict resulting in reusing
previous verdict
Previous releases - always broken:
- sctp: enhancements for the verification tag, prevent attackers from
killing SCTP sessions
- tipc: fix size validations for the MSG_CRYPTO type
- mac80211: mesh: fix HE operation element length check, prevent out
of bound access
- tls: fix sign of socket errors, prevent positive error codes being
reported from read()/write()
- cfg80211: scan: extend RCU protection in
cfg80211_add_nontrans_list()
- implement ->sock_is_readable() for UDP and AF_UNIX, fix poll() for
sockets in a BPF sockmap
- bpf: fix potential race in tail call compatibility check resulting
in two operations which would make the map incompatible succeeding
- bpf: prevent increasing bpf_jit_limit above max
- bpf: fix error usage of map_fd and fdget() in generic batch update
- phy: ethtool: lock the phy for consistency of results
- prevent infinite while loop in skb_tx_hash() when Tx races with
driver reconfiguring the queue <> traffic class mapping
- usbnet: fixes for bad HW conjured by syzbot
- xen: stop tx queues during live migration, prevent UAF
- net-sysfs: initialize uid and gid before calling
net_ns_get_ownership
- mlxsw: prevent Rx stalls under memory pressure"
* tag 'net-5.15-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (67 commits)
Revert "net: hns3: fix pause config problem after autoneg disabled"
mptcp: fix corrupt receiver key in MPC + data + checksum
riscv, bpf: Fix potential NULL dereference
octeontx2-af: Fix possible null pointer dereference.
octeontx2-af: Display all enabled PF VF rsrc_alloc entries.
octeontx2-af: Check whether ipolicers exists
net: ethernet: microchip: lan743x: Fix skb allocation failure
net/tls: Fix flipped sign in async_wait.err assignment
net/tls: Fix flipped sign in tls_err_abort() calls
net/smc: Correct spelling mistake to TCPF_SYN_RECV
net/smc: Fix smc_link->llc_testlink_time overflow
nfp: bpf: relax prog rejection for mtu check through max_pkt_offset
vmxnet3: do not stop tx queues after netif_device_detach()
r8169: Add device 10ec:8162 to driver r8169
ptp: Document the PTP_CLK_MAGIC ioctl number
usbnet: fix error return code in usbnet_probe()
net: hns3: adjust string spaces of some parameters of tx bd info in debugfs
net: hns3: expand buffer len for some debugfs command
net: hns3: add more string spaces for dumping packets number of queue info in debugfs
net: hns3: fix data endian problem of some functions of debugfs
...
Linus Torvalds [Thu, 28 Oct 2021 17:04:39 +0000 (10:04 -0700)]
Merge tag 'spi-fix-v5.15-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A couple of final driver specific fixes for v5.15, one fixing
potential ID collisions between two instances of the Altera driver and
one making Microwire full duplex mode actually work on pl022"
* tag 'spi-fix-v5.15-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: spl022: fix Microwire full duplex mode
spi: altera: Change to dynamic allocation of spi id
Linus Torvalds [Thu, 28 Oct 2021 17:00:58 +0000 (10:00 -0700)]
Merge tag 'regmap-fix-v5.15-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap fix from Mark Brown:
"This fixes a potential double free when handling an out of memory
error inserting a node into an rbtree regcache"
* tag 'regmap-fix-v5.15-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap: Fix possible double-free in regcache_rbtree_exit()
Linus Torvalds [Thu, 28 Oct 2021 16:55:25 +0000 (09:55 -0700)]
Merge tag 'linux-watchdog-5.15-rc7' of git://www.linux-watchdog.org/linux-watchdog
Pull watchdog fixes from Wim Van Sebroeck:
"I overlooked Guenters request to sent this upstream earlier, so it's a
bit late in the release cycle.
This contains:
- Revert "watchdog: iTCO_wdt: Account for rebooting on second
timeout"
- sbsa: only use 32-bit accessors
- sbsa: drop unneeded MODULE_ALIAS
- ixp4xx_wdt: Fix address space warning
- Fix OMAP watchdog early handling"
* tag 'linux-watchdog-5.15-rc7' of git://www.linux-watchdog.org/linux-watchdog:
watchdog: Fix OMAP watchdog early handling
watchdog: ixp4xx_wdt: Fix address space warning
watchdog: sbsa: drop unneeded MODULE_ALIAS
watchdog: sbsa: only use 32-bit accessors
Revert "watchdog: iTCO_wdt: Account for rebooting on second timeout"
Linus Torvalds [Thu, 28 Oct 2021 16:50:56 +0000 (09:50 -0700)]
Merge tag 'trace-v5.15-rc6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fix from Steven Rostedt:
"Do not WARN when attaching event probe to non-existent event
If the user tries to attach an event probe (eprobe) to an event that
does not exist, it will trigger a warning. There's an error check that
only expects memory issues otherwise it is considered a bug. But
changes in the code to move around the locking made it that it can
error out if the user attempts to attach to an event that does not
exist, returning an -ENODEV. As this path can be caused by user space
putting in a bad value, do not trigger a WARN"
* tag 'trace-v5.15-rc6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing: Do not warn when connecting eprobe to non existing event
Davide Caratti [Wed, 27 Oct 2021 20:38:55 +0000 (13:38 -0700)]
mptcp: fix corrupt receiver key in MPC + data + checksum
using packetdrill it's possible to observe that the receiver key contains
random values when clients transmit MP_CAPABLE with data and checksum (as
specified in RFC8684 §3.1). Fix the layout of mptcp_out_options, to avoid
using the skb extension copy when writing the MP_CAPABLE sub-option.
Björn Töpel [Thu, 28 Oct 2021 12:51:15 +0000 (14:51 +0200)]
riscv, bpf: Fix potential NULL dereference
The bpf_jit_binary_free() function requires a non-NULL argument. When
the RISC-V BPF JIT fails to converge in NR_JIT_ITERATIONS steps,
jit_data->header will be NULL, which triggers a NULL
dereference. Avoid this by checking the argument, prior calling the
function.
Fixes: ca6cb5447cec ("riscv, bpf: Factor common RISC-V JIT code") Signed-off-by: Björn Töpel <bjorn@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/r/20211028125115.514587-1-bjorn@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
David Woodhouse [Tue, 26 Oct 2021 03:12:38 +0000 (04:12 +0100)]
KVM: x86: Take srcu lock in post_kvm_run_save()
The Xen interrupt injection for event channels relies on accessing the
guest's vcpu_info structure in __kvm_xen_has_interrupt(), through a
gfn_to_hva_cache.
This requires the srcu lock to be held, which is mostly the case except
for this code path:
David S. Miller [Thu, 28 Oct 2021 13:47:37 +0000 (14:47 +0100)]
Merge branch 'octeontx2-debugfs-fixes'
Rakesh Babu Saladi says:
====================
RVU Debugfs fix updates.
The following patch series consists of the patch fixes done over
rvu_debugfs.c and rvu_nix.c files.
Patch 1: Check and return if ipolicers do not exists.
Patch 2: Fix rsrc_alloc to print all enabled PF/VF entries with list of LFs
allocated for each functional block.
Patch 3: Fix possible null pointer dereference.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
octeontx2-af: Fix possible null pointer dereference.
This patch fixes possible null pointer dereference in files
"rvu_debugfs.c" and "rvu_nix.c"
Fixes: 8756828a8148 ("octeontx2-af: Add NPA aura and pool contexts to debugfs") Fixes: 9a946def264d ("octeontx2-af: Modify nix_vtag_cfg mailbox to support TX VTAG entries") Signed-off-by: Rakesh Babu Saladi <rsaladi2@marvell.com> Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com> Signed-off-by: Sunil Goutham <sgoutham@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Rakesh Babu [Wed, 27 Oct 2021 17:32:33 +0000 (23:02 +0530)]
octeontx2-af: Display all enabled PF VF rsrc_alloc entries.
Currently, we are using a fixed buffer size of length 2048 to display
rsrc_alloc output. As a result a maximum of 2048 characters of
rsrc_alloc output is displayed, which may lead sometimes to display only
partial output. This patch fixes this dependency on max limit of buffer
size and displays all PF VF entries.
Each column of the debugfs entry "rsrc_alloc" uses a fixed width of 12
characters to print the list of LFs of each block for a PF/VF. If the
length of list of LFs of a block exceeds this fixed width then the list
gets truncated and displays only a part of the list. This patch fixes
this by using the maximum possible length of list of LFs among all
blocks of all PFs and VFs entries as the width size.
Fixes: f7884097141b ("octeontx2-af: Formatting debugfs entry rsrc_alloc.") Fixes: 23205e6d06d4 ("octeontx2-af: Dump current resource provisioning status") Signed-off-by: Rakesh Babu <rsaladi2@marvell.com> Signed-off-by: Nithin Dabilpuram <ndabilpuram@marvell.com> Signed-off-by: Sunil Kovvuri Goutham <Sunil.Goutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
While displaying ingress policers information in
debugfs check whether ingress policers exist in
the hardware or not because some platforms(CN9XXX)
do not have this feature.
Fixes: e7d8971763f3 ("octeontx2-af: cn10k: Debugfs support for bandwidth") Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com> Signed-off-by: Rakesh Babu <rsaladi2@marvell.com> Signed-off-by: Sunil Kovvuri Goutham <sgoutham@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
The driver allocates skb during ndo_open with GFP_ATOMIC which has high chance of failure when there are multiple instances.
GFP_KERNEL is enough while open and use GFP_ATOMIC only from interrupt context.
Fixes: 23f0703c125b ("lan743x: Add main source files for new lan743x driver") Signed-off-by: Yuiko Oshino <yuiko.oshino@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Jordan [Wed, 27 Oct 2021 21:59:21 +0000 (17:59 -0400)]
net/tls: Fix flipped sign in async_wait.err assignment
sk->sk_err contains a positive number, yet async_wait.err wants the
opposite. Fix the missed sign flip, which Jakub caught by inspection.
Fixes: a42055e8d2c3 ("net/tls: Add support for async encryption of records for performance") Suggested-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Daniel Jordan <daniel.m.jordan@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Jordan [Wed, 27 Oct 2021 21:59:20 +0000 (17:59 -0400)]
net/tls: Fix flipped sign in tls_err_abort() calls
sk->sk_err appears to expect a positive value, a convention that ktls
doesn't always follow and that leads to memory corruption in other code.
For instance,
[task]
splice_from_pipe_feed
...
tls_sw_do_sendpage
if (sk->sk_err) {
ret = -sk->sk_err; // ret is positive
splice_from_pipe_feed (continued)
ret = actor(...) // ret is still positive and interpreted as bytes
// written, resulting in underflow of buf->len and
// sd->len, leading to huge buf->offset and bogus
// addresses computed in later calls to actor()
Fix all tls_err_abort() callers to pass a negative error code
consistently and centralize the error-prone sign flip there, throwing in
a warning to catch future misuse and uninlining the function so it
really does only warn once.
Cc: stable@vger.kernel.org Fixes: c46234ebb4d1e ("tls: RX path for ktls") Reported-by: syzbot+b187b77c8474f9648fae@syzkaller.appspotmail.com Signed-off-by: Daniel Jordan <daniel.m.jordan@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Tony Lu [Thu, 28 Oct 2021 07:13:45 +0000 (15:13 +0800)]
net/smc: Fix smc_link->llc_testlink_time overflow
The value of llc_testlink_time is set to the value stored in
net->ipv4.sysctl_tcp_keepalive_time when linkgroup init. The value of
sysctl_tcp_keepalive_time is already jiffies, so we don't need to
multiply by HZ, which would cause smc_link->llc_testlink_time overflow,
and test_link send flood.
Signed-off-by: Tony Lu <tonylu@linux.alibaba.com> Reviewed-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com> Reviewed-by: Wen Gu <guwen@linux.alibaba.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Yu Xiao [Thu, 28 Oct 2021 10:00:36 +0000 (12:00 +0200)]
nfp: bpf: relax prog rejection for mtu check through max_pkt_offset
MTU change is refused whenever the value of new MTU is bigger than
the max packet bytes that fits in NFP Cluster Target Memory (CTM).
However, an eBPF program doesn't always need to access the whole
packet data.
The maximum direct packet access (DPA) offset has always been
caculated by verifier and stored in the max_pkt_offset field of prog
aux data.
Signed-off-by: Yu Xiao <yu.xiao@corigine.com> Reviewed-by: Yinjun Zhang <yinjun.zhang@corigine.com> Reviewed-by: Niklas Soderlund <niklas.soderlund@corigine.com> Signed-off-by: Simon Horman <simon.horman@corigine.com> Signed-off-by: David S. Miller <davem@davemloft.net>
We must enable clock before cqhci init, because crypto needs read
information from CQHCI registers, otherwise, it will hang in MediaTek mmc
host controller.
Joonas Lahtinen [Wed, 27 Oct 2021 09:32:55 +0000 (12:32 +0300)]
drm/i915: Revert 'guc_id' from i915_request tracepoint
Avoid adding backend specific data to the tracepoints outside of
the LOW_LEVEL_TRACEPOINTS kernel config protection. These bits of
information are bound to change depending on the selected submission
method per platform and are not necessarily possible to maintain in
the future.
Fixes: dbf9da8d55ef ("drm/i915/guc: Add trace point for GuC submit") Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: John Harrison <john.c.harrison@intel.com> Cc: Matthew Brost <matthew.brost@intel.com> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211027093255.66489-1-joonas.lahtinen@linux.intel.com
(cherry picked from commit 64512a66b67e6546e2db15192b3603cd6d58b75c) Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Dave Airlie [Thu, 28 Oct 2021 05:22:14 +0000 (15:22 +1000)]
Merge tag 'drm-misc-fixes-2021-10-26' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
drm-misc-fixes for v5.15-rc8:
- Fix fence leak in ttm_transfered_destroy.
- Add quirk for Aya Neo 2021
- Reset property count for each drm damage selftest so full run will work correctly.
drm/amd/display: Fix deadlock when falling back to v2 from v3
[Why]
A deadlock in the kernel occurs when we fallback from the V3 to V2
add_topology_to_display or remove_topology_to_display because they
both try to acquire the dtm_mutex but recursive locking isn't
supported on mutex_lock().
[How]
Make the mutex_lock/unlock more fine grained and move them up such that
they're only required for the psp invocation itself.
Michael Strauss [Thu, 21 Oct 2021 17:27:16 +0000 (13:27 -0400)]
drm/amd/display: Fallback to clocks which meet requested voltage on DCN31
[WHY]
On certain configs, SMU clock table voltages don't match which cause parser
to behave incorrectly by leaving dcfclk and socclk table entries unpopulated.
[HOW]
Currently the function that finds the corresponding clock for a given voltage
only checks for exact voltage level matches. In the case that no match gets
found, parser now falls back to searching for the max clock which meets the
requested voltage (i.e. its corresponding voltage is below requested).
Signed-off-by: Michael Strauss <michael.strauss@amd.com> Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
but amdgpu_dm_debugfs.c contains more of the same issue so fix the
remaining ones.
v2:
* Add missing fix in dp_max_bpc_write (Harry Wentland)
Fixes: 918698d5c2b5 ("drm/amd/display: Return the number of bytes parsed than allocated") Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
tracing: Do not warn when connecting eprobe to non existing event
When the syscall trace points are not configured in, the kselftests for
ftrace will try to attach an event probe (eprobe) to one of the system
call trace points. This triggered a WARNING, because the failure only
expects to see memory issues. But this is not the only failure. The user
may attempt to attach to a non existent event, and the kernel must not
warn about it.
Randy Dunlap [Sun, 24 Oct 2021 16:38:31 +0000 (09:38 -0700)]
ptp: Document the PTP_CLK_MAGIC ioctl number
Add PTP_CLK_MAGIC to the userspace-api/ioctl/ioctl-number.rst
documentation file.
Fixes: d94ba80ebbea ("ptp: Added a brand new class driver for ptp clocks.") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Richard Cochran <richardcochran@gmail.com> Cc: John Stultz <john.stultz@linaro.org> Cc: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/20211024163831.10200-1-rdunlap@infradead.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Linus Torvalds [Wed, 27 Oct 2021 20:15:05 +0000 (13:15 -0700)]
Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio fixes from Michael Tsirkin:
"A couple of fixes that seem important enough to pick at the last
moment"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
virtio-ring: fix DMA metadata flags
vduse: Fix race condition between resetting and irq injecting
vduse: Disallow injecting interrupt before DRIVER_OK is set
Chen Lu [Mon, 18 Oct 2021 05:22:38 +0000 (13:22 +0800)]
riscv: fix misalgned trap vector base address
The trap vector marked by label .Lsecondary_park must align on a
4-byte boundary, as the {m,s}tvec is defined to require 4-byte
alignment.
Signed-off-by: Chen Lu <181250012@smail.nju.edu.cn> Reviewed-by: Anup Patel <anup.patel@wdc.com> Fixes: e011995e826f ("RISC-V: Move relocate and few other functions out of __init") Cc: stable@vger.kernel.org Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
The flags are currently overwritten, leading to the wrong direction
being passed to the DMA unmap functions.
Fixes: 72b5e8958738aaa4 ("virtio-ring: store DMA metadata in desc_extra for split virtqueue") Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com> Link: https://lore.kernel.org/r/20211026133100.17541-1-vincent.whitchurch@axis.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com>
Wang Hai [Tue, 26 Oct 2021 12:40:15 +0000 (20:40 +0800)]
usbnet: fix error return code in usbnet_probe()
Return error code if usb_maxpacket() returns 0 in usbnet_probe()
Fixes: 397430b50a36 ("usbnet: sanity check for maxpacket") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Wang Hai <wanghai38@huawei.com> Reviewed-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20211026124015.3025136-1-wanghai38@huawei.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Linus Torvalds [Wed, 27 Oct 2021 17:41:59 +0000 (10:41 -0700)]
Merge tag 'trace-v5.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull nds32 tracing fix from Steven Rostedt:
"Fix nds32le build when DYNAMIC_FTRACE is disabled
A randconfig found that nds32le architecture fails to build due to a
prototype mismatch between a ftrace function pointer and the function
it was to be assigned to. That function pointer prototype missed being
updated when all the ftrace callbacks were updated"
* tag 'trace-v5.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
ftrace/nds32: Update the proto for ftrace_trace_function to match ftrace_stub
Linus Torvalds [Wed, 27 Oct 2021 17:19:43 +0000 (10:19 -0700)]
Merge tag 'nios2_fixes_for_v5.15_part3' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux
Pull nios2 fix from Dinh Nguyen:
"Fix a build error for allmodconfig"
* tag 'nios2_fixes_for_v5.15_part3' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux:
nios2: Make NIOS2_DTB_SOURCE_BOOL depend on !COMPILE_TEST
Linus Torvalds [Wed, 27 Oct 2021 17:01:17 +0000 (10:01 -0700)]
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma fixes from Jason Gunthorpe:
"Nothing very exciting here, it has been a quiet cycle overall. Usual
collection of small bug fixes:
- irdma issues with CQ entries, VLAN completions and a mutex deadlock
- Incorrect DCT packets in mlx5
- Userspace triggered overflows in qib
- Locking error in hfi
- Typo in errno value in qib/hfi1
- Double free in qedr
- Leak of random kernel memory to userspace with a netlink callback"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
RDMA/sa_query: Use strscpy_pad instead of memcpy to copy a string
RDMA/irdma: Do not hold qos mutex twice on QP resume
RDMA/irdma: Set VLAN in UD work completion correctly
RDMA/mlx5: Initialize the ODP xarray when creating an ODP MR
rdma/qedr: Fix crash due to redundant release of device's qp memory
RDMA/rdmavt: Fix error code in rvt_create_qp()
IB/hfi1: Fix abba locking issue with sc_disable()
IB/qib: Protect from buffer overflow in struct qib_user_sdma_pkt fields
RDMA/mlx5: Set user priority for DCT
RDMA/irdma: Process extended CQ entries correctly
ftrace/nds32: Update the proto for ftrace_trace_function to match ftrace_stub
The ftrace callback prototype was changed to pass a special ftrace_regs
instead of pt_regs as the last parameter, but the static ftrace for nds32
missed updating ftrace_trace_function and this caused a warning when
compared to ftrace_stub:
../arch/nds32/kernel/ftrace.c: In function '_mcount':
../arch/nds32/kernel/ftrace.c:24:35: error: comparison of distinct pointer types lacks a cast [-Werror]
24 | if (ftrace_trace_function != ftrace_stub)
| ^~
Link: https://lore.kernel.org/all/20211027055554.19372-1-rdunlap@infradead.org/ Link: https://lkml.kernel.org/r/20211027125101.33449969@gandalf.local.home Cc: Ingo Molnar <mingo@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Nick Hu <nickhu@andestech.com> Cc: Greentime Hu <green.hu@gmail.com> Cc: Vincent Chen <deanbo422@gmail.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: stable@vger.kernel.org Fixes: d19ad0775dcd6 ("ftrace: Have the callbacks receive a struct ftrace_regs instead of pt_regs") Reported-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Jakub Kicinski [Wed, 27 Oct 2021 15:12:25 +0000 (08:12 -0700)]
Merge tag 'mac80211-for-net-2021-10-27' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
Johannes Berg says:
====================
Two fixes:
* bridge vs. 4-addr mode check was wrong
* management frame registrations locking was
wrong, causing list corruption/crashes
====================
Paolo Bonzini [Mon, 25 Oct 2021 16:14:31 +0000 (12:14 -0400)]
KVM: SEV-ES: fix another issue with string I/O VMGEXITs
If the guest requests string I/O from the hypervisor via VMGEXIT,
SW_EXITINFO2 will contain the REP count. However, sev_es_string_io
was incorrectly treating it as the size of the GHCB buffer in
bytes.
This fixes the "outsw" test in the experimental SEV tests of
kvm-unit-tests.
Cc: stable@vger.kernel.org Fixes: 7ed9abfe8e9f ("KVM: SVM: Support string IO operations for an SEV-ES guest") Reported-by: Marc Orr <marcorr@google.com> Tested-by: Marc Orr <marcorr@google.com> Reviewed-by: Marc Orr <marcorr@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Guenter Roeck [Wed, 20 Oct 2021 19:11:16 +0000 (12:11 -0700)]
nios2: Make NIOS2_DTB_SOURCE_BOOL depend on !COMPILE_TEST
nios2:allmodconfig builds fail with
make[1]: *** No rule to make target 'arch/nios2/boot/dts/""',
needed by 'arch/nios2/boot/dts/built-in.a'. Stop.
make: [Makefile:1868: arch/nios2/boot/dts] Error 2 (ignored)
This is seen with compile tests since those enable NIOS2_DTB_SOURCE_BOOL,
which in turn enables NIOS2_DTB_SOURCE. This causes the build error
because the default value for NIOS2_DTB_SOURCE is an empty string.
Disable NIOS2_DTB_SOURCE_BOOL for compile tests to avoid the error.
projects / linux-stable / log