platform/kernel/linux-starfive.git
3 years agoRDMA/bnxt_re: Remove unsupported bnxt_re_modify_ah callback
Kamal Heib [Tue, 2 Nov 2021 07:30:54 +0000 (09:30 +0200)]
RDMA/bnxt_re: Remove unsupported bnxt_re_modify_ah callback

There is no need to return always zero for function which is not
supported, especially since 0 is the wrong return code.

Link: https://lore.kernel.org/r/20211102073054.410838-1-kamalheib1@gmail.com
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
3 years agoMerge branch 'for-rc' into rdma.git for-next
Jason Gunthorpe [Mon, 1 Nov 2021 18:08:19 +0000 (15:08 -0300)]
Merge branch 'for-rc' into rdma.git for-next

Patches held over for a possible rc8.

* for-rc:
  RDMA/qedr: Fix NULL deref for query_qp on the GSI QP
  RDMA/hns: Modify the value of MAX_LP_MSG_LEN to meet hardware compatibility
  RDMA/hns: Fix initial arm_st of CQ

Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
3 years agoMerge tag 'v5.15' into rdma.git for-next
Jason Gunthorpe [Mon, 1 Nov 2021 17:49:20 +0000 (14:49 -0300)]
Merge tag 'v5.15' into rdma.git for-next

Pull in the accepted for-rc patches as the next merge needs a newer base.

Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
3 years agoRDMA/irdma: optimize rx path by removing unnecessary copy
Zhu Yanjun [Sat, 30 Oct 2021 10:42:26 +0000 (06:42 -0400)]
RDMA/irdma: optimize rx path by removing unnecessary copy

In the function irdma_post_recv, the function irdma_copy_sg_list is
not needed since the struct irdma_sge and ib_sge have the similar
member variables. The struct irdma_sge can be replaced with the
struct ib_sge totally.

This can increase the rx performance of irdma.

Link: https://lore.kernel.org/r/20211030104226.253346-1-yanjun.zhu@linux.dev
Signed-off-by: Zhu Yanjun <yanjun.zhu@linux.dev>
Reviewed-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
3 years agoRDMA/qed: Use helper function to set GUIDs
Kamal Heib [Sun, 31 Oct 2021 17:07:43 +0000 (19:07 +0200)]
RDMA/qed: Use helper function to set GUIDs

Use addrconf_addr_eui48() helper function to set the GUIDs and remove the
driver specific version.

Link: https://lore.kernel.org/r/20211031170743.81755-1-kamalheib1@gmail.com
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
3 years agoLinux 5.15 v5.15
Linus Torvalds [Sun, 31 Oct 2021 20:53:10 +0000 (13:53 -0700)]
Linux 5.15

3 years agoMerge tag 'perf-tools-fixes-for-v5.15-2021-10-31' of git://git.kernel.org/pub/scm...
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./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

3 years agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Sun, 31 Oct 2021 18:19:02 +0000 (11:19 -0700)]
Merge tag 'for-linus' of git://git./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

3 years agoperf script: Fix PERF_SAMPLE_WEIGHT_STRUCT support
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>
3 years agoperf callchain: Fix compilation on powerpc with gcc11+
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.

[1] https://sourceware.org/git/?p=elfutils.git;a=commit;h=5621fe5443da23112170235dd5cac161e5c75e65

Reviewed-by: Kajol Jain <kjain@linux.ibm.com>
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Mark Wieelard <mjw@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Link: https://lore.kernel.org/r/20210928195253.1267023-1-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agoperf script: Check session->header.env.arch before using it
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.

Signed-off-by: Song Liu <songliubraving@fb.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: kernel-team@fb.com
Cc: stable@vger.kernel.org
Link: http://lore.kernel.org/lkml/20211004053238.514936-1-songliubraving@fb.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agoperf build: Suppress 'rm dlfilter' build message
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.

Requested-by: Arnaldo Carvalho de Melo <acme@kernel.org>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lore.kernel.org/lkml/20210930062849.110416-1-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agoMerge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Linus Torvalds [Sat, 30 Oct 2021 22:56:38 +0000 (15:56 -0700)]
Merge tag 'scsi-fixes' of git://git./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

3 years agoMerge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 30 Oct 2021 16:55:46 +0000 (09:55 -0700)]
Merge tag 'clk-fixes-for-linus' of git://git./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

3 years agoMerge tag 'riscv-for-linus-5.15-rc8' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 30 Oct 2021 16:28:24 +0000 (09:28 -0700)]
Merge tag 'riscv-for-linus-5.15-rc8' of git://git./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

3 years agoscsi: ufs: ufshpb: Remove HPB2.0 flows
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>
3 years agoMerge tag 'powerpc-5.15-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc...
Linus Torvalds [Sat, 30 Oct 2021 00:35:56 +0000 (17:35 -0700)]
Merge tag 'powerpc-5.15-6' of git://git./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

3 years agoMerge tag 'gpio-fixes-for-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 30 Oct 2021 00:04:38 +0000 (17:04 -0700)]
Merge tag 'gpio-fixes-for-v5.15' of git://git./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

3 years agoMerge tag 'block-5.15-2021-10-29' of git://git.kernel.dk/linux-block
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

3 years agoscsi: mpt3sas: Fix reference tag handling for WRITE_INSERT
Martin K. Petersen [Thu, 28 Oct 2021 03:42:02 +0000 (23:42 -0400)]
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.

Link: https://lore.kernel.org/r/20211028034202.24225-1-martin.petersen@oracle.com
Fixes: b3e2c72af1d5 ("scsi: mpt3sas: Use the proper SCSI midlayer interfaces for PI")
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
3 years agoMerge tag 'mmc-v5.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Linus Torvalds [Fri, 29 Oct 2021 17:54:44 +0000 (10:54 -0700)]
Merge tag 'mmc-v5.15-rc5' of git://git./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

3 years agoMerge tag 'for-5.15-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave...
Linus Torvalds [Fri, 29 Oct 2021 17:46:59 +0000 (10:46 -0700)]
Merge tag 'for-5.15-rc7-tag' of git://git./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"

3 years agoMerge tag 'trace-v5.15-rc6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rosted...
Linus Torvalds [Fri, 29 Oct 2021 17:41:07 +0000 (10:41 -0700)]
Merge tag 'trace-v5.15-rc6-3' of git://git./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

3 years agoMerge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Linus Torvalds [Fri, 29 Oct 2021 17:17:08 +0000 (10:17 -0700)]
Merge branch 'linus' of git://git./linux/kernel/git/herbert/crypto-2.6

Pull crypto fix from Herbert Xu:
 "Fix a build-time warning in x86/sm4"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: x86/sm4 - Fix invalid section entry size

3 years agoRDMA/hns: Use the core code to manage the fixed mmap entries
Chengchang Tang [Thu, 28 Oct 2021 10:56:40 +0000 (18:56 +0800)]
RDMA/hns: Use the core code to manage the fixed mmap entries

Add a new implementation for mmap by using the new mmap entry API. This
makes way for further use of the dynamic mmap allocator in this driver.

Link: https://lore.kernel.org/r/20211028105640.1056-1-liangwenpeng@huawei.com
Signed-off-by: Chengchang Tang <tangchengchang@huawei.com>
Signed-off-by: Yixing Liu <liuyixing1@huawei.com>
Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
3 years agoMerge branch 'akpm' (patches from Andrew)
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

3 years agoIB/opa_vnic: Rebranding of OPA VNIC driver to Cornelis Networks
Scott Breyer [Thu, 28 Oct 2021 12:46:11 +0000 (08:46 -0400)]
IB/opa_vnic: Rebranding of OPA VNIC driver to Cornelis Networks

Changes instances of Intel to Cornelis in identifying strings

Link: https://lore.kernel.org/r/20211028124611.26694.71239.stgit@awfm-01.cornelisnetworks.com
Signed-off-by: Scott Breyer <scott.breyer@cornelisnetworks.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
3 years agoIB/qib: Rebranding of qib driver to Cornelis Networks
Scott Breyer [Thu, 28 Oct 2021 12:46:06 +0000 (08:46 -0400)]
IB/qib: Rebranding of qib driver to Cornelis Networks

Changes instances of Intel to Cornelis in identifying strings

Link: https://lore.kernel.org/r/20211028124606.26694.71567.stgit@awfm-01.cornelisnetworks.com
Signed-off-by: Scott Breyer <scott.breyer@cornelisnetworks.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
3 years agoIB/hfi1: Rebranding of hfi1 driver to Cornelis Networks
Scott Breyer [Thu, 28 Oct 2021 12:46:01 +0000 (08:46 -0400)]
IB/hfi1: Rebranding of hfi1 driver to Cornelis Networks

Changes instances of Intel to Cornelis in identifying strings

Link: https://lore.kernel.org/r/20211028124601.26694.35662.stgit@awfm-01.cornelisnetworks.com
Signed-off-by: Scott Breyer <scott.breyer@cornelisnetworks.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
3 years agoRDMA/bnxt_re: Use helper function to set GUIDs
Kamal Heib [Thu, 28 Oct 2021 09:43:59 +0000 (12:43 +0300)]
RDMA/bnxt_re: Use helper function to set GUIDs

Use addrconf_addr_eui48() helper function to set the GUIDs and remove the
driver specific version.

Link: https://lore.kernel.org/r/20211028094359.160407-1-kamalheib1@gmail.com
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
3 years agoriscv: Fix asan-stack clang build
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.

Reported-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Alexandre Ghiti <alexandre.ghiti@canonical.com>
Fixes: 8ad8b72721d0 ("riscv: Add KASAN support")
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
3 years agoriscv: Do not re-populate shadow memory with kasan_populate_early_shadow
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.

Signed-off-by: Alexandre Ghiti <alexandre.ghiti@canonical.com>
Fixes: e178d670f251 ("riscv/kasan: add KASAN_VMALLOC support")
Fixes: 8ad8b72721d0 ("riscv: Add KASAN support")
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
3 years agoRDMA/bnxt_re: Fix kernel panic when trying to access bnxt_re_stat_descs
Kamal Heib [Wed, 27 Oct 2021 20:54:48 +0000 (23:54 +0300)]
RDMA/bnxt_re: Fix kernel panic when trying to access bnxt_re_stat_descs

For some reason when introducing the fixed commit the "active_pds" and
"active_ahs" descriptors got dropped, which lead to the following panic
when trying to access the first entry in the descriptors.

 bnxt_re: Broadcom NetXtreme-C/E RoCE Driver
 BUG: kernel NULL pointer dereference, address: 0000000000000000
 CPU: 2 PID: 594 Comm: kworker/u32:1 Not tainted 5.15.0-rc6+ #2
 Hardware name: Dell Inc. PowerEdge R430/0CN7X8, BIOS 2.12.1 12/07/2020
 Workqueue: bnxt_re bnxt_re_task [bnxt_re]
 RIP: 0010:strlen+0x0/0x20
 Code: 48 89 f9 74 09 48 83 c1 01 80 39 00 75 f7 31 d2 44 0f b6 04 16 44 88 04 11 48 83 c2 01 45 84 c0 75 ee c3 0f 1f 80 00 00 00 00 <80> 3f 00 74 10 48 89 f8 48 83 c0 01 80 31
 RSP: 0018:ffffb25fc47dfbb0 EFLAGS: 00010246
 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000008100
 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
 RBP: 0000000000000000 R08: 00000000fffffff4 R09: 0000000000000000
 R10: ffff8a05c71fc028 R11: 0000000000000000 R12: 0000000000000000
 R13: 0000000000000000 R14: 0000000000000000 R15: ffff8a05c3dee800
 FS:  0000000000000000(0000) GS:ffff8a092fc40000(0000) knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 0000000000000000 CR3: 000000048d3da001 CR4: 00000000001706e0
 Call Trace:
  kernfs_name_hash+0x12/0x80
  kernfs_find_ns+0x35/0xd0
  kernfs_remove_by_name_ns+0x32/0x90
  remove_files+0x2b/0x60
  create_files+0x1d3/0x1f0
  internal_create_group+0x17b/0x1f0
  internal_create_groups.part.0+0x3d/0xa0
  setup_port+0x180/0x3b0 [ib_core]
  ? __cond_resched+0x16/0x40
  ? kmem_cache_alloc_trace+0x278/0x3d0
  ib_setup_port_attrs+0x99/0x240 [ib_core]
  ib_register_device+0xcc/0x160 [ib_core]
  bnxt_re_task+0xba/0x170 [bnxt_re]
  process_one_work+0x1eb/0x390
  worker_thread+0x53/0x3d0
  ? process_one_work+0x390/0x390
  kthread+0x10f/0x130
  ? set_kthread_struct+0x40/0x40
  ret_from_fork+0x22/0x30

Fixes: 13f30b0fa0a9 ("RDMA/counter: Add a descriptor in struct rdma_hw_stats")
Link: https://lore.kernel.org/r/20211027205448.127821-1-kamalheib1@gmail.com
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Acked-by: Selvin Xavier <selvin.xavier@broadcom.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Devesh Sharma <devesh.s.sharma@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
3 years agoRDMA/qedr: Fix NULL deref for query_qp on the GSI QP
Alok Prasad [Wed, 27 Oct 2021 18:43:29 +0000 (18:43 +0000)]
RDMA/qedr: Fix NULL deref for query_qp on the GSI QP

This patch fixes a crash caused by querying the QP via netlink, and
corrects the state of GSI qp. GSI qp's have a NULL qed_qp.

The call trace is generated by:
 $ rdma res show

 BUG: kernel NULL pointer dereference, address: 0000000000000034
 Hardware name: Dell Inc. PowerEdge R720/0M1GCR, BIOS 1.2.6 05/10/2012
 RIP: 0010:qed_rdma_query_qp+0x33/0x1a0 [qed]
 RSP: 0018:ffffba560a08f580 EFLAGS: 00010206
 RAX: 0000000200000000 RBX: ffffba560a08f5b8 RCX: 0000000000000000
 RDX: ffffba560a08f5b8 RSI: 0000000000000000 RDI: ffff9807ee458090
 RBP: ffffba560a08f5a0 R08: 0000000000000000 R09: ffff9807890e7048
 R10: ffffba560a08f658 R11: 0000000000000000 R12: 0000000000000000
 R13: ffff9807ee458090 R14: ffff9807f0afb000 R15: ffffba560a08f7ec
 FS:  00007fbbf8bfe740(0000) GS:ffff980aafa00000(0000) knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 0000000000000034 CR3: 00000001720ba001 CR4: 00000000000606f0
 Call Trace:
  qedr_query_qp+0x82/0x360 [qedr]
  ib_query_qp+0x34/0x40 [ib_core]
  ? ib_query_qp+0x34/0x40 [ib_core]
  fill_res_qp_entry_query.isra.26+0x47/0x1d0 [ib_core]
  ? __nla_put+0x20/0x30
  ? nla_put+0x33/0x40
  fill_res_qp_entry+0xe3/0x120 [ib_core]
  res_get_common_dumpit+0x3f8/0x5d0 [ib_core]
  ? fill_res_cm_id_entry+0x1f0/0x1f0 [ib_core]
  nldev_res_get_qp_dumpit+0x1a/0x20 [ib_core]
  netlink_dump+0x156/0x2f0
  __netlink_dump_start+0x1ab/0x260
  rdma_nl_rcv+0x1de/0x330 [ib_core]
  ? nldev_res_get_cm_id_dumpit+0x20/0x20 [ib_core]
  netlink_unicast+0x1b8/0x270
  netlink_sendmsg+0x33e/0x470
  sock_sendmsg+0x63/0x70
  __sys_sendto+0x13f/0x180
  ? setup_sgl.isra.12+0x70/0xc0
  __x64_sys_sendto+0x28/0x30
  do_syscall_64+0x3a/0xb0
  entry_SYSCALL_64_after_hwframe+0x44/0xae

Cc: stable@vger.kernel.org
Fixes: cecbcddf6461 ("qedr: Add support for QP verbs")
Link: https://lore.kernel.org/r/20211027184329.18454-1-palok@marvell.com
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: Shai Malin <smalin@marvell.com>
Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
Signed-off-by: Alok Prasad <palok@marvell.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
3 years agoRDMA/hns: Modify the value of MAX_LP_MSG_LEN to meet hardware compatibility
Yixing Liu [Fri, 29 Oct 2021 10:05:37 +0000 (18:05 +0800)]
RDMA/hns: Modify the value of MAX_LP_MSG_LEN to meet hardware compatibility

The upper limit of MAX_LP_MSG_LEN on HIP08 is 64K, and the upper limit on
HIP09 is 16K. Regardless of whether it is HIP08 or HIP09, only 16K will be
used. In order to ensure compatibility, it is unified to 16K.

Setting MAX_LP_MSG_LEN to 16K will not cause performance loss on HIP08.

Fixes: fbed9d2be292 ("RDMA/hns: Fix configuration of ack_req_freq in QPC")
Link: https://lore.kernel.org/r/20211029100537.27299-1-liangwenpeng@huawei.com
Signed-off-by: Yixing Liu <liuyixing1@huawei.com>
Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
3 years agoRDMA/hns: Fix initial arm_st of CQ
Haoyue Xu [Fri, 29 Oct 2021 09:58:46 +0000 (17:58 +0800)]
RDMA/hns: Fix initial arm_st of CQ

We set the init CQ status to ARMED before. As a result, an unexpected CEQE
would be reported. Therefore, the init CQ status should be set to no_armed
rather than REG_NXT_CEQE.

Fixes: a5073d6054f7 ("RDMA/hns: Add eq support of hip08")
Link: https://lore.kernel.org/r/20211029095846.26732-1-liangwenpeng@huawei.com
Signed-off-by: Haoyue Xu <xuhaoyue1@hisilicon.com>
Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
3 years agotracing: Fix misspelling of "missing"
Steven Rostedt (VMware) [Fri, 29 Oct 2021 13:54:14 +0000 (09:54 -0400)]
tracing: Fix misspelling of "missing"

My snake instinct was on and I wrote "misssing" instead of "missing".

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
3 years agoftrace: Fix kernel-doc formatting issues
Steven Rostedt (VMware) [Fri, 29 Oct 2021 13:52:23 +0000 (09:52 -0400)]
ftrace: Fix kernel-doc formatting issues

Some functions had kernel-doc that used a comma instead of a hash to
separate the function name from the one line description.

Also, the "ftrace_is_dead()" had an incomplete description.

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
3 years agoRevert "btrfs: compression: drop kmap/kunmap from lzo"
David Sterba [Wed, 27 Oct 2021 08:44:21 +0000 (10:44 +0200)]
Revert "btrfs: compression: drop kmap/kunmap from lzo"

This reverts commit 8c945d32e60427cbc0859cf7045bbe6196bb03d8.

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.

Link: https://lore.kernel.org/all/CAJCQCtT+OuemovPO7GZk8Y8=qtOObr0XTDp8jh4OHD6y84AFxw@mail.gmail.com/
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=214839
Tested-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
3 years agoRevert "btrfs: compression: drop kmap/kunmap from zlib"
David Sterba [Wed, 27 Oct 2021 08:42:43 +0000 (10:42 +0200)]
Revert "btrfs: compression: drop kmap/kunmap from zlib"

This reverts commit 696ab562e6df9fbafd6052d8ce4aafcb2ed16069.

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.

Link: https://lore.kernel.org/all/CAJCQCtT+OuemovPO7GZk8Y8=qtOObr0XTDp8jh4OHD6y84AFxw@mail.gmail.com/
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=214839
Signed-off-by: David Sterba <dsterba@suse.com>
3 years agoRevert "btrfs: compression: drop kmap/kunmap from zstd"
David Sterba [Wed, 27 Oct 2021 08:42:27 +0000 (10:42 +0200)]
Revert "btrfs: compression: drop kmap/kunmap from zstd"

This reverts commit bbaf9715f3f5b5ff0de71da91fcc34ee9c198ed8.

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>]

Link: https://lore.kernel.org/all/CAJCQCtT+OuemovPO7GZk8Y8=qtOObr0XTDp8jh4OHD6y84AFxw@mail.gmail.com/
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=214839
Signed-off-by: David Sterba <dsterba@suse.com>
3 years agotools/testing/selftests/vm/split_huge_page_test.c: fix application of sizeof to pointer
David Yang [Thu, 28 Oct 2021 21:36:36 +0000 (14:36 -0700)]
tools/testing/selftests/vm/split_huge_page_test.c: fix application of sizeof to pointer

The coccinelle check report:

  ./tools/testing/selftests/vm/split_huge_page_test.c:344:36-42:
  ERROR: application of sizeof to pointer

Use "strlen" to fix it.

Link: https://lkml.kernel.org/r/20211012030116.184027-1-davidcomponentone@gmail.com
Signed-off-by: David Yang <davidcomponentone@gmail.com>
Reported-by: Zeal Robot <zealci@zte.com.cn>
Cc: Zi Yan <ziy@nvidia.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
3 years agomm/damon/core-test: fix wrong expectations for 'damon_split_regions_of()'
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>
3 years agomm: khugepaged: skip huge page collapse for special files
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.

[shy828301@gmail.com: fix vm_file check [3]]

Link: https://lore.kernel.org/lkml/CACkBjsYwLYLRmX8GpsDpMthagWOjWWrNxqY6ZLNQVr6yx+f5vA@mail.gmail.com/
Link: https://lore.kernel.org/linux-mm/000000000000c6a82505ce284e4c@google.com/
Link: https://lkml.kernel.org/r/CAHbLzkqTW9U3VvTu1Ki5v_cLRC9gHW+znBukg_ycergE0JWj-A@mail.gmail.com
Link: https://lkml.kernel.org/r/20211027195221.3825-1-shy828301@gmail.com
Fixes: 99cb0dbd47a1 ("mm,thp: add read-only THP support for (non-shmem) FS")
Signed-off-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Yang Shi <shy828301@gmail.com>
Reported-by: Hao Sun <sunhao.th@gmail.com>
Reported-by: syzbot+aae069be1de40fb11825@syzkaller.appspotmail.com
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Andrea Righi <andrea.righi@canonical.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
3 years agomm, thp: bail out early in collapse_file for writeback page
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.

  page:fffffe00201bcc80 refcount:0 mapcount:0 mapping:ffff0003f88c86a8 index:0x0 pfn:0x84ef32
  aops:xfs_address_space_operations [xfs] ino:30000b7 dentry name:"libtest.so"
  flags: 0x57fffe0000008027(locked|referenced|uptodate|active|writeback)
  raw: 57fffe0000008027 ffff80001b48bc28 ffff80001b48bc28 ffff0003f88c86a8
  raw: 0000000000000000 0000000000000000 00000000ffffffff ffff0000c3e9a000
  page dumped because: VM_BUG_ON_PAGE(((unsigned int) page_ref_count(page) + 127u <= 127u))
  page->mem_cgroup:ffff0000c3e9a000
  ------------[ cut here ]------------
  kernel BUG at include/linux/mm.h:1212!
  Internal error: Oops - BUG: 0 [#1] SMP
  Modules linked in:
  BUG: Bad page state in process khugepaged  pfn:84ef32
   xfs(E)
  page:fffffe00201bcc80 refcount:0 mapcount:0 mapping:0 index:0x0 pfn:0x84ef32
   libcrc32c(E) rfkill(E) aes_ce_blk(E) crypto_simd(E) ...
  CPU: 25 PID: 0 Comm: swapper/25 Kdump: loaded Tainted: ...
  pstate: 60400005 (nZCv daif +PAN -UAO -TCO BTYPE=--)
  Call trace:
    end_page_writeback+0x1c0/0x214
    iomap_finish_page_writeback+0x13c/0x204
    iomap_finish_ioend+0xe8/0x19c
    iomap_writepage_end_bio+0x38/0x50
    bio_endio+0x168/0x1ec
    blk_update_request+0x278/0x3f0
    blk_mq_end_request+0x34/0x15c
    virtblk_request_done+0x38/0x74 [virtio_blk]
    blk_done_softirq+0xc4/0x110
    __do_softirq+0x128/0x38c
    __irq_exit_rcu+0x118/0x150
    irq_exit+0x1c/0x30
    __handle_domain_irq+0x8c/0xf0
    gic_handle_irq+0x84/0x108
    el1_irq+0xcc/0x180
    arch_cpu_idle+0x18/0x40
    default_idle_call+0x4c/0x1a0
    cpuidle_idle_call+0x168/0x1e0
    do_idle+0xb4/0x104
    cpu_startup_entry+0x30/0x9c
    secondary_start_kernel+0x104/0x180
  Code: d4210000 b0006161 910c8021 94013f4d (d4210000)
  ---[ end trace 4a88c6a074082f8c ]---
  Kernel panic - not syncing: Oops - BUG: Fatal exception in interrupt

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>
3 years agomm/vmalloc: fix numa spreading for large hash tables
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.

Link: https://lore.kernel.org/linux-mm/CANn89iL6AAyWhfxdHO+jaT075iOa3XcYn9k6JJc7JR2XYn6k_Q@mail.gmail.com/
Link: https://lore.kernel.org/linux-mm/CANn89iLofTR=AK-QOZY87RdUZENCZUT4O6a0hvhu3_EwRMerOg@mail.gmail.com/
Link: https://lkml.kernel.org/r/20211021080744.874701-2-chenwandun@huawei.com
Fixes: 121e6f3258fe ("mm/vmalloc: hugepage vmalloc mappings")
Signed-off-by: Chen Wandun <chenwandun@huawei.com>
Reported-by: Eric Dumazet <edumazet@google.com>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Hanjun Guo <guohanjun@huawei.com>
Cc: Uladzislau Rezki <urezki@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
3 years agomm/secretmem: avoid letting secretmem_users drop to zero
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."

Move fd_install() after refcount_inc().

Link: https://lkml.kernel.org/r/20211021154046.880251-1-keescook@chromium.org
Link: https://lore.kernel.org/lkml/CACT4Y+b1sW6-Hkn8HQYw_SsT7X3tp-CJNh2ci0wG3ZnQz9jjig@mail.gmail.com
Fixes: 9a436f8ff631 ("PM: hibernate: disable when there are active secretmem users")
Signed-off-by: Kees Cook <keescook@chromium.org>
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Jordy Zomer <jordy@pwning.systems>
Cc: Mike Rapoport <rppt@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
3 years agoocfs2: fix race between searching chunks and release journal_head from buffer_head
Gautham Ananthakrishna [Thu, 28 Oct 2021 21:36:17 +0000 (14:36 -0700)]
ocfs2: fix race between searching chunks and release journal_head from buffer_head

Encountered a race between ocfs2_test_bg_bit_allocatable() and
jbd2_journal_put_journal_head() resulting in the below vmcore.

  PID: 106879  TASK: ffff880244ba9c00  CPU: 2   COMMAND: "loop3"
  Call trace:
    panic
    oops_end
    no_context
    __bad_area_nosemaphore
    bad_area_nosemaphore
    __do_page_fault
    do_page_fault
    page_fault
      [exception RIP: ocfs2_block_group_find_clear_bits+316]
    ocfs2_block_group_find_clear_bits [ocfs2]
    ocfs2_cluster_group_search [ocfs2]
    ocfs2_search_chain [ocfs2]
    ocfs2_claim_suballoc_bits [ocfs2]
    __ocfs2_claim_clusters [ocfs2]
    ocfs2_claim_clusters [ocfs2]
    ocfs2_local_alloc_slide_window [ocfs2]
    ocfs2_reserve_local_alloc_bits [ocfs2]
    ocfs2_reserve_clusters_with_limit [ocfs2]
    ocfs2_reserve_clusters [ocfs2]
    ocfs2_lock_refcount_allocators [ocfs2]
    ocfs2_make_clusters_writable [ocfs2]
    ocfs2_replace_cow [ocfs2]
    ocfs2_refcount_cow [ocfs2]
    ocfs2_file_write_iter [ocfs2]
    lo_rw_aio
    loop_queue_work
    kthread_worker_fn
    kthread
    ret_from_fork

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>
3 years agomm/oom_kill.c: prevent a race between process_mrelease and exit_mmap
Suren Baghdasaryan [Thu, 28 Oct 2021 21:36:14 +0000 (14:36 -0700)]
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>
3 years agomm: filemap: check if THP has hwpoisoned subpage for PMD page fault
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>
3 years agomm: hwpoison: remove the unnecessary THP check
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>
3 years agomemcg: page_alloc: skip bulk allocator for __GFP_ACCOUNT
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>
3 years agoMerge tag 'libnvdimm-fixes-5.15-rc8' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Thu, 28 Oct 2021 23:50:25 +0000 (16:50 -0700)]
Merge tag 'libnvdimm-fixes-5.15-rc8' of git://git./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

3 years agommc: tmio: reenable card irqs after the reset callback
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>
3 years agoMerge tag 'drm-fixes-2021-10-29' of git://anongit.freedesktop.org/drm/drm
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
  ...

3 years agoMAINTAINERS: dri-devel is for all of drivers/gpu
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
3 years agoMerge tag 'drm-intel-fixes-2021-10-28' of git://anongit.freedesktop.org/drm/drm-intel...
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

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/8735olh27y.fsf@intel.com
3 years agoMerge tag 'net-5.15-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Linus Torvalds [Thu, 28 Oct 2021 17:17:31 +0000 (10:17 -0700)]
Merge tag 'net-5.15-rc8' of git://git./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
  ...

3 years agoMerge tag 'spi-fix-v5.15-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/brooni...
Linus Torvalds [Thu, 28 Oct 2021 17:04:39 +0000 (10:04 -0700)]
Merge tag 'spi-fix-v5.15-rc7' of git://git./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

3 years agoMerge tag 'regmap-fix-v5.15-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Thu, 28 Oct 2021 17:00:58 +0000 (10:00 -0700)]
Merge tag 'regmap-fix-v5.15-rc7' of git://git./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()

3 years agoMerge tag 'linux-watchdog-5.15-rc7' of git://www.linux-watchdog.org/linux-watchdog
Linus Torvalds [Thu, 28 Oct 2021 16:55:25 +0000 (09:55 -0700)]
Merge tag 'linux-watchdog-5.15-rc7' of git://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"

3 years agoMerge tag 'trace-v5.15-rc6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rosted...
Linus Torvalds [Thu, 28 Oct 2021 16:50:56 +0000 (09:50 -0700)]
Merge tag 'trace-v5.15-rc6-2' of git://git./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

3 years agoRevert "net: hns3: fix pause config problem after autoneg disabled"
Guangbin Huang [Thu, 28 Oct 2021 14:06:24 +0000 (22:06 +0800)]
Revert "net: hns3: fix pause config problem after autoneg disabled"

This reverts commit 3bda2e5df476417b6d08967e2d84234a59d57b1c.

According to discussion with Andrew as follow:
https://lore.kernel.org/netdev/09eda9fe-196b-006b-6f01-f54e75715961@huawei.com/

HNS3 driver needs to separate pause autoneg from general autoneg, so revert
this incorrect patch.

Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Link: https://lore.kernel.org/r/20211028140624.53149-1-huangguangbin2@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agomptcp: fix corrupt receiver key in MPC + data + checksum
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.

Fixes: d7b269083786 ("mptcp: shrink mptcp_out_options struct")
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/233
Reported-by: Poorva Sonparote <psonparo@redhat.com>
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Link: https://lore.kernel.org/r/20211027203855.264600-1-mathew.j.martineau@linux.intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agoriscv, bpf: Fix potential NULL dereference
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>
3 years agoKVM: x86: Take srcu lock in post_kvm_run_save()
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:

[   11.822877] WARNING: suspicious RCU usage
[   11.822965] -----------------------------
[   11.823013] include/linux/kvm_host.h:664 suspicious rcu_dereference_check() usage!
[   11.823131]
[   11.823131] other info that might help us debug this:
[   11.823131]
[   11.823196]
[   11.823196] rcu_scheduler_active = 2, debug_locks = 1
[   11.823253] 1 lock held by dom:0/90:
[   11.823292]  #0: ffff998956ec8118 (&vcpu->mutex){+.+.}, at: kvm_vcpu_ioctl+0x85/0x680
[   11.823379]
[   11.823379] stack backtrace:
[   11.823428] CPU: 2 PID: 90 Comm: dom:0 Kdump: loaded Not tainted 5.4.34+ #5
[   11.823496] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org 04/01/2014
[   11.823612] Call Trace:
[   11.823645]  dump_stack+0x7a/0xa5
[   11.823681]  lockdep_rcu_suspicious+0xc5/0x100
[   11.823726]  __kvm_xen_has_interrupt+0x179/0x190
[   11.823773]  kvm_cpu_has_extint+0x6d/0x90
[   11.823813]  kvm_cpu_accept_dm_intr+0xd/0x40
[   11.823853]  kvm_vcpu_ready_for_interrupt_injection+0x20/0x30
              < post_kvm_run_save() inlined here >
[   11.823906]  kvm_arch_vcpu_ioctl_run+0x135/0x6a0
[   11.823947]  kvm_vcpu_ioctl+0x263/0x680

Fixes: 40da8ccd724f ("KVM: x86/xen: Add event channel interrupt vector upcall")
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Cc: stable@vger.kernel.org
Message-Id: <606aaaf29fca3850a63aa4499826104e77a72346.camel@infradead.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
3 years agoMerge tag 'nvme-5.15-2021-10-28' of git://git.infradead.org/nvme into block-5.15
Jens Axboe [Thu, 28 Oct 2021 14:34:01 +0000 (08:34 -0600)]
Merge tag 'nvme-5.15-2021-10-28' of git://git.infradead.org/nvme into block-5.15

Pull NVMe fixes from Christoph:

"nvme fixe for Linux 5.15

 - 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)"

* tag 'nvme-5.15-2021-10-28' of git://git.infradead.org/nvme:
  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
  nvme-tcp: fix H2CData PDU send accounting (again)
  nvmet-tcp: fix a memory leak when releasing a queue

3 years agoMerge branch 'octeontx2-debugfs-fixes'
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>
3 years agoocteontx2-af: Fix possible null pointer dereference.
Rakesh Babu Saladi [Wed, 27 Oct 2021 17:32:34 +0000 (23:02 +0530)]
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>
3 years agoocteontx2-af: Display all enabled PF VF rsrc_alloc entries.
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>
3 years agoocteontx2-af: Check whether ipolicers exists
Subbaraya Sundeep [Wed, 27 Oct 2021 17:32:32 +0000 (23:02 +0530)]
octeontx2-af: Check whether ipolicers exists

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>
3 years agonet: ethernet: microchip: lan743x: Fix skb allocation failure
Yuiko Oshino [Wed, 27 Oct 2021 18:23:02 +0000 (14:23 -0400)]
net: ethernet: microchip: lan743x: Fix skb allocation failure

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>
3 years agonet/tls: Fix flipped sign in async_wait.err assignment
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>
3 years agonet/tls: Fix flipped sign in tls_err_abort() calls
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,

    [kworker]
    tls_encrypt_done(..., err=<negative error from crypto request>)
      tls_err_abort(.., err)
        sk->sk_err = err;

    [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>
3 years agoMerge branch 'SMC-fixes'
David S. Miller [Thu, 28 Oct 2021 12:04:29 +0000 (13:04 +0100)]
Merge branch 'SMC-fixes'

Tony Lu says:

====================
Fixes for SMC

There are some fixes for SMC.

v1->v2:
- fix wrong email address.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet/smc: Correct spelling mistake to TCPF_SYN_RECV
Wen Gu [Thu, 28 Oct 2021 07:13:47 +0000 (15:13 +0800)]
net/smc: Correct spelling mistake to TCPF_SYN_RECV

There should use TCPF_SYN_RECV instead of TCP_SYN_RECV.

Signed-off-by: Wen Gu <guwen@linux.alibaba.com>
Reviewed-by: Tony Lu <tonylu@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet/smc: Fix smc_link->llc_testlink_time overflow
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>
3 years agonfp: bpf: relax prog rejection for mtu check through max_pkt_offset
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>
3 years agoRDMA/rxe: Make rxe_type_info static const
Joe Perches [Sun, 24 Oct 2021 17:13:14 +0000 (10:13 -0700)]
RDMA/rxe: Make rxe_type_info static const

Make struct rxe_type_info static const and local to the only uses.  Moves
a bit of data to text.

$ size drivers/infiniband/sw/rxe/rxe_pool.o* (defconfig w/ infiniband swe)
   text    data     bss     dec     hex filename
   4456      12       0    4468    1174 drivers/infiniband/sw/rxe/rxe_pool.o.new
   3817     652       0    4469    1175 drivers/infiniband/sw/rxe/rxe_pool.o.old

Link: https://lore.kernel.org/r/166b715d71f98336e8ecab72b0dbdd266eee9193.camel@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
3 years agoRDMA/rxe: Use 'bitmap_zalloc()' when applicable
Christophe JAILLET [Sun, 24 Oct 2021 16:43:56 +0000 (18:43 +0200)]
RDMA/rxe: Use 'bitmap_zalloc()' when applicable

'index.table' is a bitmap. So use 'bitmap_zalloc()' to simplify code,
improve the semantic and avoid some open-coded arithmetic in allocator
arguments.

Using 'bitmap_zalloc()' also allows the removal of a now useless
'bitmap_zero()'.

Also change the corresponding 'kfree()' into 'bitmap_free()' to keep
consistency.

Link: https://lore.kernel.org/r/4a3e11d45865678d570333d1962820eb13168848.1635093628.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
3 years agoRDMA/rxe: Save a few bytes from struct rxe_pool
Christophe JAILLET [Sun, 24 Oct 2021 16:43:30 +0000 (18:43 +0200)]
RDMA/rxe: Save a few bytes from struct rxe_pool

'table_size' is never read, it can be removed.

In fact, the only place that uses something that could be 'table_size' is
'alloc_index()'. In this function, it is re-computed from 'min_index' and
'max_index'.

Link: https://lore.kernel.org/r/2c42065049bb2b99bededdc423a9babf4a98adee.1635093628.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
3 years agoRDMA/irdma: Remove the unused variable local_qp
Zhu Yanjun [Wed, 27 Oct 2021 17:54:57 +0000 (13:54 -0400)]
RDMA/irdma: Remove the unused variable local_qp

Since the member variable local_qp is not used, remove it.

Link: https://lore.kernel.org/r/20211027175457.201822-1-yanjun.zhu@linux.dev
Signed-off-by: Zhu Yanjun <yanjun.zhu@linux.dev>
Acked-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
3 years agoRDMA/core: Fix missed initialization of rdma_hw_stats::lock
Mark Zhang [Tue, 26 Oct 2021 08:43:03 +0000 (11:43 +0300)]
RDMA/core: Fix missed initialization of rdma_hw_stats::lock

alloc_and_bind() creates a new rdma_hw_stats structure but misses
initializing the mutex lock.

This causes debug kernel failures:

 DEBUG_LOCKS_WARN_ON(lock->magic != lock)
 WARNING: CPU: 4 PID: 64464 at kernel/locking/mutex.c:575 __mutex_lock+0x9c3/0x12b0
 Call Trace:
  fill_res_counter_entry+0x6ee/0x1020 [ib_core]
  res_get_common_dumpit+0x907/0x10a0 [ib_core]
  nldev_stat_get_dumpit+0x20a/0x290 [ib_core]
  netlink_dump+0x451/0x1040
  __netlink_dump_start+0x583/0x830
  rdma_nl_rcv_msg+0x3f3/0x7c0 [ib_core]
  rdma_nl_rcv+0x264/0x410 [ib_core]
  netlink_unicast+0x433/0x700
  netlink_sendmsg+0x707/0xbf0
  sock_sendmsg+0xb0/0xe0
  __sys_sendto+0x193/0x240
  __x64_sys_sendto+0xdd/0x1b0
  do_syscall_64+0x3d/0x90
  entry_SYSCALL_64_after_hwframe+0x44/0xae

Instead of requiring all users to open code initialization of the lock put
it in the general rdma_alloc_hw_stats_struct() function and remove
duplicates.

Fixes: c4ffee7c9bdb ("RDMA/netlink: Implement counter dumpit calback")
Link: https://lore.kernel.org/r/4a22986c4685058d2c735d91703ee7d865815bb9.1635237668.git.leonro@nvidia.com
Signed-off-by: Mark Zhang <markzhang@nvidia.com>
Reviewed-by: Maor Gottlieb <maorg@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
3 years agoRDMA/efa: Add support for dmabuf memory regions
Gal Pressman [Tue, 12 Oct 2021 12:09:03 +0000 (15:09 +0300)]
RDMA/efa: Add support for dmabuf memory regions

Implement a dmabuf importer for the EFA driver. As ODP is not supported,
the pinned dmabuf are used to prevent the move_notify callback from being
called.

Link: https://lore.kernel.org/r/20211012120903.96933-4-galpress@amazon.com
Signed-off-by: Gal Pressman <galpress@amazon.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
3 years agoRDMA/umem: Allow pinned dmabuf umem usage
Gal Pressman [Tue, 12 Oct 2021 12:09:02 +0000 (15:09 +0300)]
RDMA/umem: Allow pinned dmabuf umem usage

Introduce ib_umem_dmabuf_get_pinned() which allows the driver to get a
dmabuf umem which is pinned and does not require move_notify callback
implementation.

The returned umem is pinned and DMA mapped like standard cpu umems, and is
released through ib_umem_release() (incl. unpinning and unmapping).

Link: https://lore.kernel.org/r/20211012120903.96933-3-galpress@amazon.com
Signed-off-by: Gal Pressman <galpress@amazon.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
3 years agovmxnet3: do not stop tx queues after netif_device_detach()
Dongli Zhang [Tue, 26 Oct 2021 21:50:31 +0000 (14:50 -0700)]
vmxnet3: do not stop tx queues after netif_device_detach()

The netif_device_detach() conditionally stops all tx queues if the queues
are running. There is no need to call netif_tx_stop_all_queues() again.

Signed-off-by: Dongli Zhang <dongli.zhang@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agommc: mediatek: Move cqhci init behind ungate clock
Wenbin Mei [Thu, 28 Oct 2021 02:20:49 +0000 (10:20 +0800)]
mmc: mediatek: Move cqhci init behind ungate clock

We must enable clock before cqhci init, because crypto needs read
information from CQHCI registers, otherwise, it will hang in MediaTek mmc
host controller.

Signed-off-by: Wenbin Mei <wenbin.mei@mediatek.com>
Fixes: 88bd652b3c74 ("mmc: mediatek: command queue support")
Cc: stable@vger.kernel.org
Acked-by: Chaotian Jing <chaotian.jing@mediatek.com>
Link: https://lore.kernel.org/r/20211028022049.22129-1-wenbin.mei@mediatek.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
3 years agodrm/i915: Revert 'guc_id' from i915_request tracepoint
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>
3 years agoMerge tag 'drm-misc-fixes-2021-10-28' of git://anongit.freedesktop.org/drm/drm-misc...
Dave Airlie [Thu, 28 Oct 2021 07:27:10 +0000 (17:27 +1000)]
Merge tag 'drm-misc-fixes-2021-10-28' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

One patch to fix the default screen orientation on the GPD Win3

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20211028072300.b4gqexq6zfhby24g@gilmour
3 years agoMerge tag 'drm-misc-fixes-2021-10-26' of git://anongit.freedesktop.org/drm/drm-misc...
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.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/4a133970-ff4b-aa62-d346-b269b1b9236e@linux.intel.com
3 years agoMerge tag 'amd-drm-fixes-5.15-2021-10-27' of https://gitlab.freedesktop.org/agd5f...
Dave Airlie [Thu, 28 Oct 2021 05:21:50 +0000 (15:21 +1000)]
Merge tag 'amd-drm-fixes-5.15-2021-10-27' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes

amd-drm-fixes-5.15-2021-10-27:

amdgpu:
- Display fixes for DCN 3.1
- Fix potential out of bounds write in debugfs

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211028023130.4528-1-alexander.deucher@amd.com
3 years agodrm/amd/display: Fix deadlock when falling back to v2 from v3
Nicholas Kazlauskas [Fri, 22 Oct 2021 20:14:24 +0000 (16:14 -0400)]
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.

Fixes: bf62221e9d0e ("drm/amd/display: Add DCN3.1 HDCP support")
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Aric Cyr <aric.cyr@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
3 years agodrm/amd/display: Fallback to clocks which meet requested voltage on DCN31
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
3 years agodrm/amdgpu: Fix even more out of bound writes from debugfs
Patrik Jakobsson [Wed, 27 Oct 2021 14:27:30 +0000 (16:27 +0200)]
drm/amdgpu: Fix even more out of bound writes from debugfs

CVE-2021-42327 was fixed by:

commit f23750b5b3d98653b31d4469592935ef6364ad67
Author: Thelford Williams <tdwilliamsiv@gmail.com>
Date:   Wed Oct 13 16:04:13 2021 -0400

    drm/amdgpu: fix out of bounds write

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
3 years agotracing: Do not warn when connecting eprobe to non existing event
Steven Rostedt (VMware) [Wed, 27 Oct 2021 16:08:54 +0000 (12:08 -0400)]
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.

Link: https://lkml.kernel.org/r/20211027120854.0680aa0f@gandalf.local.home
Fixes: 7491e2c442781 ("tracing: Add a probe that attaches to trace events")
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
3 years agor8169: Add device 10ec:8162 to driver r8169
Janghyub Seo [Tue, 26 Oct 2021 07:12:42 +0000 (07:12 +0000)]
r8169: Add device 10ec:8162 to driver r8169

This patch makes the driver r8169 pick up device Realtek Semiconductor Co.
, Ltd. Device [10ec:8162].

Signed-off-by: Janghyub Seo <jhyub06@gmail.com>
Suggested-by: Rushab Shah <rushabshah32@gmail.com>
Link: https://lore.kernel.org/r/1635231849296.1489250046.441294000@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agoptp: Document the PTP_CLK_MAGIC ioctl number
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>
3 years agoMerge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Linus Torvalds [Wed, 27 Oct 2021 20:15:05 +0000 (13:15 -0700)]
Merge tag 'for_linus' of git://git./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

3 years agoriscv: fix misalgned trap vector base address
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>
3 years agovirtio-ring: fix DMA metadata flags
Vincent Whitchurch [Tue, 26 Oct 2021 13:31:00 +0000 (15:31 +0200)]
virtio-ring: fix DMA metadata flags

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>