Commit Graph

1089073 Commits

Author SHA1 Message Date
Linus Torvalds
a19944809f hardening fixes for v5.18-rc3
- latent_entropy: Use /dev/urandom instead of small GCC seed (Jason Donenfeld)
 
 - uapi/stddef.h: add missed include guards (Tadeusz Struk)
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Merge tag 'hardening-v5.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull hardening fixes from Kees Cook:

 - latent_entropy: Use /dev/urandom instead of small GCC seed (Jason
   Donenfeld)

 - uapi/stddef.h: add missed include guards (Tadeusz Struk)

* tag 'hardening-v5.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  gcc-plugins: latent_entropy: use /dev/urandom
  uapi/linux/stddef.h: Add include guards
2022-04-12 14:29:40 -10:00
Linus Torvalds
c1488c9751 NFSD bug fixes for 5.18-rc:
- Fix a write performance regression
 - Fix crashes during request deferral on RDMA transports
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Merge tag 'nfsd-5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux

Pull nfsd fixes from Chuck Lever:

 - Fix a write performance regression

 - Fix crashes during request deferral on RDMA transports

* tag 'nfsd-5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
  SUNRPC: Fix the svc_deferred_event trace class
  SUNRPC: Fix NFSD's request deferral on RDMA transports
  nfsd: Clean up nfsd_file_put()
  nfsd: Fix a write performance regression
  SUNRPC: Return true/false (not 1/0) from bool functions
2022-04-12 14:23:19 -10:00
Linus Torvalds
453096eb04 x86:
* Miscellaneous bugfixes
 
 * A small cleanup for the new workqueue code
 
 * Documentation syntax fix
 
 RISC-V:
 
 * Remove hgatp zeroing in kvm_arch_vcpu_put()
 
 * Fix alignment of the guest_hang() in KVM selftest
 
 * Fix PTE A and D bits in KVM selftest
 
 * Missing #include in vcpu_fp.c
 
 ARM:
 
 * Some PSCI fixes after introducing PSCIv1.1 and SYSTEM_RESET2
 
 * Fix the MMU write-lock not being taken on THP split
 
 * Fix mixed-width VM handling
 
 * Fix potential UAF when debugfs registration fails
 
 * Various selftest updates for all of the above
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "x86:

   - Miscellaneous bugfixes

   - A small cleanup for the new workqueue code

   - Documentation syntax fix

  RISC-V:

   - Remove hgatp zeroing in kvm_arch_vcpu_put()

   - Fix alignment of the guest_hang() in KVM selftest

   - Fix PTE A and D bits in KVM selftest

   - Missing #include in vcpu_fp.c

  ARM:

   - Some PSCI fixes after introducing PSCIv1.1 and SYSTEM_RESET2

   - Fix the MMU write-lock not being taken on THP split

   - Fix mixed-width VM handling

   - Fix potential UAF when debugfs registration fails

   - Various selftest updates for all of the above"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (24 commits)
  KVM: x86: hyper-v: Avoid writing to TSC page without an active vCPU
  KVM: SVM: Do not activate AVIC for SEV-enabled guest
  Documentation: KVM: Add SPDX-License-Identifier tag
  selftests: kvm: add tsc_scaling_sync to .gitignore
  RISC-V: KVM: include missing hwcap.h into vcpu_fp
  KVM: selftests: riscv: Fix alignment of the guest_hang() function
  KVM: selftests: riscv: Set PTE A and D bits in VS-stage page table
  RISC-V: KVM: Don't clear hgatp CSR in kvm_arch_vcpu_put()
  selftests: KVM: Free the GIC FD when cleaning up in arch_timer
  selftests: KVM: Don't leak GIC FD across dirty log test iterations
  KVM: Don't create VM debugfs files outside of the VM directory
  KVM: selftests: get-reg-list: Add KVM_REG_ARM_FW_REG(3)
  KVM: avoid NULL pointer dereference in kvm_dirty_ring_push
  KVM: arm64: selftests: Introduce vcpu_width_config
  KVM: arm64: mixed-width check should be skipped for uninitialized vCPUs
  KVM: arm64: vgic: Remove unnecessary type castings
  KVM: arm64: Don't split hugepages outside of MMU write lock
  KVM: arm64: Drop unneeded minor version check from PSCI v1.x handler
  KVM: arm64: Actually prevent SMC64 SYSTEM_RESET2 from AArch32
  KVM: arm64: Generally disallow SMC64 for AArch32 guests
  ...
2022-04-12 14:16:33 -10:00
Linus Torvalds
7083b89ef3 media fixes for v5.18-rc2
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Merge tag 'media/v5.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media fixes from Mauro Carvalho Chehab:

 - a regression fix for si2157

 - a Kconfig dependency fix for imx-mipi-csis

 - fix the rockchip/rga driver probing logic

* tag 'media/v5.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  media: si2157: unknown chip version Si2147-A30 ROM 0x50
  media: platform: imx-mipi-csis: Add dependency on VIDEO_DEV
  media: rockchip/rga: do proper error checking in probe
2022-04-12 14:08:43 -10:00
Mikulas Patocka
932aba1e16 stat: fix inconsistency between struct stat and struct compat_stat
struct stat (defined in arch/x86/include/uapi/asm/stat.h) has 32-bit
st_dev and st_rdev; struct compat_stat (defined in
arch/x86/include/asm/compat.h) has 16-bit st_dev and st_rdev followed by
a 16-bit padding.

This patch fixes struct compat_stat to match struct stat.

[ Historical note: the old x86 'struct stat' did have that 16-bit field
  that the compat layer had kept around, but it was changes back in 2003
  by "struct stat - support larger dev_t":

    https://git.kernel.org/pub/scm/linux/kernel/git/tglx/history.git/commit/?id=e95b2065677fe32512a597a79db94b77b90c968d

  and back in those days, the x86_64 port was still new, and separate
  from the i386 code, and had already picked up the old version with a
  16-bit st_dev field ]

Note that we can't change compat_dev_t because it is used by
compat_loop_info.

Also, if the st_dev and st_rdev values are 32-bit, we don't have to use
old_valid_dev to test if the value fits into them.  This fixes
-EOVERFLOW on filesystems that are on NVMe because NVMe uses the major
number 259.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: Andreas Schwab <schwab@linux-m68k.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-04-12 13:35:08 -10:00
Jason A. Donenfeld
c40160f299 gcc-plugins: latent_entropy: use /dev/urandom
While the latent entropy plugin mostly doesn't derive entropy from
get_random_const() for measuring the call graph, when __latent_entropy is
applied to a constant, then it's initialized statically to output from
get_random_const(). In that case, this data is derived from a 64-bit
seed, which means a buffer of 512 bits doesn't really have that amount
of compile-time entropy.

This patch fixes that shortcoming by just buffering chunks of
/dev/urandom output and doling it out as requested.

At the same time, it's important that we don't break the use of
-frandom-seed, for people who want the runtime benefits of the latent
entropy plugin, while still having compile-time determinism. In that
case, we detect whether gcc's set_random_seed() has been called by
making a call to get_random_seed(noinit=true) in the plugin init
function, which is called after set_random_seed() is called but before
anything that calls get_random_seed(noinit=false), and seeing if it's
zero or not. If it's not zero, we're in deterministic mode, and so we
just generate numbers with a basic xorshift prng.

Note that we don't detect if -frandom-seed is being used using the
documented local_tick variable, because it's assigned via:
   local_tick = (unsigned) tv.tv_sec * 1000 + tv.tv_usec / 1000;
which may well overflow and become -1 on its own, and so isn't
reliable: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105171

[kees: The 256 byte rnd_buf size was chosen based on average (250),
 median (64), and std deviation (575) bytes of used entropy for a
 defconfig x86_64 build]

Fixes: 38addce8b6 ("gcc-plugins: Add latent_entropy plugin")
Cc: stable@vger.kernel.org
Cc: PaX Team <pageexec@freemail.hu>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20220405222815.21155-1-Jason@zx2c4.com
2022-04-12 11:31:40 -07:00
Linus Torvalds
7281a59ce3 platform-drivers-x86 for v5.18-2
Highlights:
 - Doc + compilation warning fixes
 - Kconfig dep fixes
 - Misc. small code cleanups
 
 The following is an automated git shortlog grouped by driver:
 
 Documentation/ABI:
  -  sysfs-class-firmware-attributes: Misc. cleanups
  -  sysfs-class-firmware-attributes: Fix Sphinx errors
  -  sysfs-driver-intel_sdsi: Fix sphinx warnings
 
 acerhdf:
  -  Cleanup str_starts_with()
 
 amd-pmc:
  -  Fix compilation without CONFIG_SUSPEND
 
 barco-p50-gpio:
  -  Fix duplicate included linux/io.h
 
 samsung-laptop:
  -  Fix an unsigned comparison which can never be negative
 
 think-lmi:
  -  certificate support clean ups
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Merge tag 'platform-drivers-x86-v5.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform drivers fixes from Hans de Goede:

 - Documentation and compilation warning fixes

 - Kconfig dep fixes

 - Misc small code cleanups

* tag 'platform-drivers-x86-v5.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
  platform/x86: amd-pmc: Fix compilation without CONFIG_SUSPEND
  platform/x86: acerhdf: Cleanup str_starts_with()
  Documentation/ABI: sysfs-class-firmware-attributes: Misc. cleanups
  Documentation/ABI: sysfs-class-firmware-attributes: Fix Sphinx errors
  Documentation/ABI: sysfs-driver-intel_sdsi: Fix sphinx warnings
  platform/x86: barco-p50-gpio: Fix duplicate included linux/io.h
  platform/x86: samsung-laptop: Fix an unsigned comparison which can never be negative
  platform/x86: think-lmi: certificate support clean ups
2022-04-11 19:51:23 -10:00
Vitaly Kuznetsov
42dcbe7d8b KVM: x86: hyper-v: Avoid writing to TSC page without an active vCPU
The following WARN is triggered from kvm_vm_ioctl_set_clock():
 WARNING: CPU: 10 PID: 579353 at arch/x86/kvm/../../../virt/kvm/kvm_main.c:3161 mark_page_dirty_in_slot+0x6c/0x80 [kvm]
 ...
 CPU: 10 PID: 579353 Comm: qemu-system-x86 Tainted: G        W  O      5.16.0.stable #20
 Hardware name: LENOVO 20UF001CUS/20UF001CUS, BIOS R1CET65W(1.34 ) 06/17/2021
 RIP: 0010:mark_page_dirty_in_slot+0x6c/0x80 [kvm]
 ...
 Call Trace:
  <TASK>
  ? kvm_write_guest+0x114/0x120 [kvm]
  kvm_hv_invalidate_tsc_page+0x9e/0xf0 [kvm]
  kvm_arch_vm_ioctl+0xa26/0xc50 [kvm]
  ? schedule+0x4e/0xc0
  ? __cond_resched+0x1a/0x50
  ? futex_wait+0x166/0x250
  ? __send_signal+0x1f1/0x3d0
  kvm_vm_ioctl+0x747/0xda0 [kvm]
  ...

The WARN was introduced by commit 03c0304a86bc ("KVM: Warn if
mark_page_dirty() is called without an active vCPU") but the change seems
to be correct (unlike Hyper-V TSC page update mechanism). In fact, there's
no real need to actually write to guest memory to invalidate TSC page, this
can be done by the first vCPU which goes through kvm_guest_time_update().

Reported-by: Maxim Levitsky <mlevitsk@redhat.com>
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Suggested-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20220407201013.963226-1-vkuznets@redhat.com>
2022-04-11 13:29:51 -04:00
Suravee Suthikulpanit
c538dc792f KVM: SVM: Do not activate AVIC for SEV-enabled guest
Since current AVIC implementation cannot support encrypted memory,
inhibit AVIC for SEV-enabled guest.

Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Message-Id: <20220408133710.54275-1-suravee.suthikulpanit@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-04-11 13:28:56 -04:00
Like Xu
af105c9cc9 Documentation: KVM: Add SPDX-License-Identifier tag
+new file mode 100644
+WARNING: Missing or malformed SPDX-License-Identifier tag in line 1
+#27: FILE: Documentation/virt/kvm/x86/errata.rst:1:

Opportunistically update all other non-added KVM documents and
remove a new extra blank line at EOF for x86/errata.rst.

Signed-off-by: Like Xu <likexu@tencent.com>
Message-Id: <20220406063715.55625-5-likexu@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-04-11 13:28:56 -04:00
Like Xu
0c8b6641c8 selftests: kvm: add tsc_scaling_sync to .gitignore
The tsc_scaling_sync's binary should be present in the .gitignore
file for the git to ignore it.

Signed-off-by: Like Xu <likexu@tencent.com>
Message-Id: <20220406063715.55625-3-likexu@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-04-11 13:28:56 -04:00
Paolo Bonzini
b2c2c21a7d KVM/riscv fixes for 5.18, take #1
- Remove hgatp zeroing in kvm_arch_vcpu_put()
 
 - Fix alignment of the guest_hang() in KVM selftest
 
 - Fix PTE A and D bits in KVM selftest
 
 - Missing #include in vcpu_fp.c
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Merge tag 'kvm-riscv-fixes-5.18-1' of https://github.com/kvm-riscv/linux into HEAD

KVM/riscv fixes for 5.18, take #1

- Remove hgatp zeroing in kvm_arch_vcpu_put()

- Fix alignment of the guest_hang() in KVM selftest

- Fix PTE A and D bits in KVM selftest

- Missing #include in vcpu_fp.c
2022-04-11 13:28:23 -04:00
Linus Torvalds
ce522ba9ef Linux 5.18-rc2 2022-04-10 14:21:36 -10:00
Linus Torvalds
8b57b30461 Serial driver fix for 5.18-rc2
This is a single serial driver fix for a build issue that showed up due
 to changes that came in through the tty tree in 5.18-rc1 that were
 missed previously.  It resolves a build error with the mpc52xx_uart
 driver.
 
 It has been in linux-next this week with no reported problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull serial driver fix from Greg KH:
 "This is a single serial driver fix for a build issue that showed up
  due to changes that came in through the tty tree in 5.18-rc1 that were
  missed previously. It resolves a build error with the mpc52xx_uart
  driver.

  It has been in linux-next this week with no reported problems"

* tag 'tty-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  tty: serial: mpc52xx_uart: make rx/tx hooks return unsigned, part II.
2022-04-10 10:08:50 -10:00
Linus Torvalds
95aa17c36d Staging driver fix for 5.18-rc2
Here is a single staging driver fix for 5.18-rc2 that resolves an endian
 issue for the r8188eu driver.  It has been in linux-next all this week
 with no reported problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging driver fix from Greg KH:
 "Here is a single staging driver fix for 5.18-rc2 that resolves an
  endian issue for the r8188eu driver. It has been in linux-next all
  this week with no reported problems"

* tag 'staging-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging: r8188eu: Fix PPPoE tag insertion on little endian systems
2022-04-10 10:04:30 -10:00
Linus Torvalds
33563138ac Driver core changes for 5.18-rc2
Here are 2 small driver core changes for 5.18-rc2.
 
 They are the final bits in the removal of the default_attrs field in
 struct kobj_type.  I had to wait until after 5.18-rc1 for all of the
 changes to do this came in through different development trees, and then
 one new user snuck in.  So this series has 2 changes:
 	- removal of the default_attrs field in the powerpc/pseries/vas
 	  code.  Change has been acked by the PPC maintainers to come
 	  through this tree
 	- removal of default_attrs from struct kobj_type now that all
 	  in-kernel users are removed.  This cleans up the kobject code
 	  a little bit and removes some duplicated functionality that
 	  confused people (now there is only one way to do default
 	  groups.)
 
 All of these have been in linux-next for all of this week with no
 reported problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core updates from Greg KH:
 "Here are two small driver core changes for 5.18-rc2.

  They are the final bits in the removal of the default_attrs field in
  struct kobj_type. I had to wait until after 5.18-rc1 for all of the
  changes to do this came in through different development trees, and
  then one new user snuck in. So this series has two changes:

   - removal of the default_attrs field in the powerpc/pseries/vas code.

     The change has been acked by the PPC maintainers to come through
     this tree

   - removal of default_attrs from struct kobj_type now that all
     in-kernel users are removed.

     This cleans up the kobject code a little bit and removes some
     duplicated functionality that confused people (now there is only
     one way to do default groups)

  Both of these have been in linux-next for all of this week with no
  reported problems"

* tag 'driver-core-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  kobject: kobj_type: remove default_attrs
  powerpc/pseries/vas: use default_groups in kobj_type
2022-04-10 09:55:09 -10:00
Linus Torvalds
f58d3410c5 Char/Misc driver fix for 5.18-rc2
Here is a single driver fix for 5.18-rc2.  It resolves the build warning
 issue on 32bit systems in the habannalabs driver that came in during the
 5.18-rc1 merge cycle.
 
 It has been in linux-next for all this week with no reported problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver fix from Greg KH:
 "A single driver fix. It resolves the build warning issue on 32bit
  systems in the habannalabs driver that came in during the 5.18-rc1
  merge cycle.

  It has been in linux-next for all this week with no reported problems"

* tag 'char-misc-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  habanalabs: Fix test build failures
2022-04-10 09:52:46 -10:00
Linus Torvalds
4ea3c64252 powerpc fixes for 5.18 #2
- Fix KVM "lost kick" race, where an attempt to pull a vcpu out of the guest could be
    lost (or delayed until the next guest exit).
 
  - Disable SCV (system call vectored) when PR KVM guests could be run.
 
  - Fix KVM PR guests using SCV, by disallowing AIL != 0 for KVM PR guests.
 
  - Add a new KVM CAP to indicate if AIL == 3 is supported.
 
  - Fix a regression when hotplugging a CPU to a memoryless/cpuless node.
 
  - Make virt_addr_valid() stricter for 64-bit Book3E & 32-bit, which fixes crashes seen
    due to hardened usercopy.
 
  - Revert a change to max_mapnr which broke HIGHMEM.
 
 Thanks to: Christophe Leroy, Fabiano Rosas, Kefeng Wang, Nicholas Piggin, Srikar Dronamraju.
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Merge tag 'powerpc-5.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:

 - Fix KVM "lost kick" race, where an attempt to pull a vcpu out of the
   guest could be lost (or delayed until the next guest exit).

 - Disable SCV (system call vectored) when PR KVM guests could be run.

 - Fix KVM PR guests using SCV, by disallowing AIL != 0 for KVM PR
   guests.

 - Add a new KVM CAP to indicate if AIL == 3 is supported.

 - Fix a regression when hotplugging a CPU to a memoryless/cpuless node.

 - Make virt_addr_valid() stricter for 64-bit Book3E & 32-bit, which
   fixes crashes seen due to hardened usercopy.

 - Revert a change to max_mapnr which broke HIGHMEM.

Thanks to Christophe Leroy, Fabiano Rosas, Kefeng Wang, Nicholas Piggin,
and Srikar Dronamraju.

* tag 'powerpc-5.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  Revert "powerpc: Set max_mapnr correctly"
  powerpc: Fix virt_addr_valid() for 64-bit Book3E & 32-bit
  KVM: PPC: Move kvmhv_on_pseries() into kvm_ppc.h
  powerpc/numa: Handle partially initialized numa nodes
  powerpc/64: Fix build failure with allyesconfig in book3s_64_entry.S
  KVM: PPC: Use KVM_CAP_PPC_AIL_MODE_3
  KVM: PPC: Book3S PR: Disallow AIL != 0
  KVM: PPC: Book3S PR: Disable SCV when AIL could be disabled
  KVM: PPC: Book3S HV P9: Fix "lost kick" race
2022-04-10 07:36:18 -10:00
Linus Torvalds
1519610b53 A set of interrupt chip driver fixes:
- A fix for a long standing bug in the ARM GICv3 redistributor polling
     which uses the wrong bit number to test.
 
   - Prevent translation of bogus ACPI table entries which map device
     interrupts into the IPI space on ARM GICs.
 
   - Don't write into the pending register of ARM GICV4 before the scan
     in hardware has completed.
 
   - A set of build and correctness fixes for the Qualcomm MPM driver
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Merge tag 'irq-urgent-2022-04-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq fixes from Thomas Gleixner:
 "A set of interrupt chip driver fixes:

   - A fix for a long standing bug in the ARM GICv3 redistributor
     polling which uses the wrong bit number to test.

   - Prevent translation of bogus ACPI table entries which map device
     interrupts into the IPI space on ARM GICs.

   - Don't write into the pending register of ARM GICV4 before the scan
     in hardware has completed.

   - A set of build and correctness fixes for the Qualcomm MPM driver"

* tag 'irq-urgent-2022-04-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/gic, gic-v3: Prevent GSI to SGI translations
  irqchip/gic-v3: Fix GICR_CTLR.RWP polling
  irqchip/gic-v4: Wait for GICR_VPENDBASER.Dirty to clear before descheduling
  irqchip/irq-qcom-mpm: fix return value check in qcom_mpm_init()
  irq/qcom-mpm: Fix build error without MAILBOX
2022-04-10 07:25:49 -10:00
Linus Torvalds
9c6913b749 - Fix the MSI message data struct definition
- Use local labels in the exception table macros to avoid symbol
 conflicts with clang LTO builds
 
 - A couple of fixes to objtool checking of the relatively newly added
 SLS and IBT code
 
 - Rename a local var in the WARN* macro machinery to prevent shadowing
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Merge tag 'x86_urgent_for_v5.18_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fixes from Borislav Petkov:

 - Fix the MSI message data struct definition

 - Use local labels in the exception table macros to avoid symbol
   conflicts with clang LTO builds

 - A couple of fixes to objtool checking of the relatively newly added
   SLS and IBT code

 - Rename a local var in the WARN* macro machinery to prevent shadowing

* tag 'x86_urgent_for_v5.18_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/msi: Fix msi message data shadow struct
  x86/extable: Prefer local labels in .set directives
  x86,bpf: Avoid IBT objtool warning
  objtool: Fix SLS validation for kcov tail-call replacement
  objtool: Fix IBT tail-call detection
  x86/bug: Prevent shadowing in __WARN_FLAGS
  x86/mm/tlb: Revert retpoline avoidance approach
2022-04-10 07:12:27 -10:00
Linus Torvalds
b51f86e990 - A couple of fixes to cgroup-related handling of perf events
- A couple of fixes to event encoding on Sapphire Rapids
 
 - Pass event caps of inherited events so that perf doesn't fail wrongly at fork()
 
 - Add support for a new Raptor Lake CPU
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Merge tag 'perf_urgent_for_v5.18_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf fixes from Borislav Petkov:

 - A couple of fixes to cgroup-related handling of perf events

 - A couple of fixes to event encoding on Sapphire Rapids

 - Pass event caps of inherited events so that perf doesn't fail wrongly
   at fork()

 - Add support for a new Raptor Lake CPU

* tag 'perf_urgent_for_v5.18_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/core: Always set cpuctx cgrp when enable cgroup event
  perf/core: Fix perf_cgroup_switch()
  perf/core: Use perf_cgroup_info->active to check if cgroup is active
  perf/core: Don't pass task around when ctx sched in
  perf/x86/intel: Update the FRONTEND MSR mask on Sapphire Rapids
  perf/x86/intel: Don't extend the pseudo-encoding to GP counters
  perf/core: Inherit event_caps
  perf/x86/uncore: Add Raptor Lake uncore support
  perf/x86/msr: Add Raptor Lake CPU support
  perf/x86/cstate: Add Raptor Lake support
  perf/x86: Add Intel Raptor Lake support
2022-04-10 07:08:22 -10:00
Linus Torvalds
50c94de67c - Allow the compiler to optimize away unused percpu accesses and change
the local_lock_* macros back to inline functions
 
 - A couple of fixes to static call insn patching
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Merge tag 'locking_urgent_for_v5.18_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull locking fixes from Borislav Petkov:

 - Allow the compiler to optimize away unused percpu accesses and change
   the local_lock_* macros back to inline functions

 - A couple of fixes to static call insn patching

* tag 'locking_urgent_for_v5.18_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  Revert "mm/page_alloc: mark pagesets as __maybe_unused"
  Revert "locking/local_lock: Make the empty local_lock_*() function a macro."
  x86/percpu: Remove volatile from arch_raw_cpu_ptr().
  static_call: Remove __DEFINE_STATIC_CALL macro
  static_call: Properly initialise DEFINE_STATIC_CALL_RET0()
  static_call: Don't make __static_call_return0 static
  x86,static_call: Fix __static_call_return0 for i386
2022-04-10 06:56:46 -10:00
Linus Torvalds
7136849ea9 - Use the correct static key checking primitive on the IRQ exit path
- Two fixes for the new forceidle balancer
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Merge tag 'sched_urgent_for_v5.18_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull scheduler fixes from Borislav Petkov:

 - Use the correct static key checking primitive on the IRQ exit path

 - Two fixes for the new forceidle balancer

* tag 'sched_urgent_for_v5.18_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  entry: Fix compile error in dynamic_irqentry_exit_cond_resched()
  sched: Teach the forced-newidle balancer about CPU affinity limitation.
  sched/core: Fix forceidle balancing
2022-04-10 06:47:49 -10:00
Linus Torvalds
1862a69c91 perf tools fixes for v5.18: 1st batch
- Fix the clang command line option probing and remove some options to filter
   out, fixing the build with the latest clang versions.
 
 - Fix 'perf bench' futex and epoll benchmarks to deal with machines with more
   than 1K CPUs.
 
 - Fix 'perf test tsc' error message when not supported.
 
 - Remap perf ring buffer if there is no space for event, fixing perf usage
   in 32-bit ChromeOS.
 
 - Drop objdump stderr to avoid getting stuck waiting for stdout output in
   'perf annotate'.
 
 - Fix up garbled output by now showing unwind error messages when augmenting
   frame in best effort mode.
 
 - Fix perf's libperf_print callback, use the va_args eprintf() variant.
 
 - Sync vhost and arm64 cputype headers with the kernel sources.
 
 - Fix 'perf report --mem-mode' with ARM SPE.
 
 - Add missing external commands ('perf iiostat', etc) to 'perf --list-cmds'.
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-tools-fixes-for-v5.18-2022-04-09' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux

Pull perf tools fixes from Arnaldo Carvalho de Melo:

 - Fix the clang command line option probing and remove some options to
   filter out, fixing the build with the latest clang versions

 - Fix 'perf bench' futex and epoll benchmarks to deal with machines
   with more than 1K CPUs

 - Fix 'perf test tsc' error message when not supported

 - Remap perf ring buffer if there is no space for event, fixing perf
   usage in 32-bit ChromeOS

 - Drop objdump stderr to avoid getting stuck waiting for stdout output
   in 'perf annotate'

 - Fix up garbled output by now showing unwind error messages when
   augmenting frame in best effort mode

 - Fix perf's libperf_print callback, use the va_args eprintf() variant

 - Sync vhost and arm64 cputype headers with the kernel sources

 - Fix 'perf report --mem-mode' with ARM SPE

 - Add missing external commands ('iiostat', etc) to 'perf --list-cmds'

* tag 'perf-tools-fixes-for-v5.18-2022-04-09' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
  perf annotate: Drop objdump stderr to avoid getting stuck waiting for stdout output
  perf tools: Add external commands to list-cmds
  perf docs: Add perf-iostat link to manpages
  perf session: Remap buf if there is no space for event
  perf bench: Fix epoll bench to correct usage of affinity for machines with #CPUs > 1K
  perf bench: Fix futex bench to correct usage of affinity for machines with #CPUs > 1K
  perf tools: Fix perf's libperf_print callback
  perf: arm-spe: Fix perf report --mem-mode
  perf unwind: Don't show unwind error messages when augmenting frame pointer stack
  tools headers arm64: Sync arm64's cputype.h with the kernel sources
  perf test tsc: Fix error message when not supported
  perf build: Don't use -ffat-lto-objects in the python feature test when building with clang-13
  perf python: Fix probing for some clang command line options
  tools build: Filter out options and warnings not supported by clang
  tools build: Use $(shell ) instead of `` to get embedded libperl's ccopts
  tools include UAPI: Sync linux/vhost.h with the kernel sources
2022-04-09 18:45:10 -10:00
Linus Torvalds
94a4c2bb7a cxl + nvdimm fixes for v5.18-rc2
- Fix a compile error in the nvdimm unit tests
 
 - Fix a shadowed variable warning in the CXL PCI driver
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Merge tag 'cxl+nvdimm-for-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm

Pull cxl and nvdimm fixes from Dan Williams:

 - Fix a compile error in the nvdimm unit tests

 - Fix a shadowed variable warning in the CXL PCI driver

* tag 'cxl+nvdimm-for-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  cxl/pci: Drop shadowed variable
  tools/testing/nvdimm: Fix security_init() symbol collision
2022-04-09 18:31:59 -10:00
Linus Torvalds
fa3b895da8 gpio fixes for v5.18-rc2
- fix a race condition with consumers accessing the fields of GPIO IRQ chips
   before they're fully initialized
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Merge tag 'gpio-fixes-for-v5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

Pull gpio fix from Bartosz Golaszewski:

 - fix a race condition with consumers accessing the fields of GPIO IRQ
   chips before they're fully initialized

* tag 'gpio-fixes-for-v5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  gpio: Restrict usage of GPIO chip irq members before initialization
2022-04-09 18:17:43 -10:00
Thomas Gleixner
63ef1a8a07 irqchip fixes for 5.18, take #1
- Fix GICv3 polling for RWP in redistributors
 
 - Reject ACPI attempts to use SGIs on GIC/GICv3
 
 - Fix unpredictible behaviour when making a VPE non-resident
   with GICv4
 
 - A couple of fixes for the newly merged qcom-mpm driver
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Merge tag 'irqchip-fixes-5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent

Pull irqchip fixes from Marc Zyngier:

 - Fix GICv3 polling for RWP in redistributors

 - Reject ACPI attempts to use SGIs on GIC/GICv3

 - Fix unpredictible behaviour when making a VPE non-resident
   with GICv4

 - A couple of fixes for the newly merged qcom-mpm driver

Link: https://lore.kernel.org/lkml/20220409094229.267649-1-maz@kernel.org
2022-04-09 22:21:55 +02:00
Ian Rogers
940a445a90 perf annotate: Drop objdump stderr to avoid getting stuck waiting for stdout output
If objdump writes to stderr it can block waiting for it to be read. As
perf doesn't read stderr then progress stops with perf waiting for
stdout output.

Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexandre Truong <alexandre.truong@arm.com>
Cc: Dave Marchevsky <davemarchevsky@fb.com>
Cc: Denis Nikitin <denik@chromium.org>
Cc: German Gomez <german.gomez@arm.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Lexi Shao <shaolexi@huawei.com>
Cc: Li Huafei <lihuafei1@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Martin Liška <mliska@suse.cz>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Remi Bernon <rbernon@codeweavers.com>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Will Deacon <will@kernel.org>
Cc: William Cohen <wcohen@redhat.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lore.kernel.org/lkml/20220407230503.1265036-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-04-09 14:21:00 -03:00
Michael Petlan
3e6b43beb7 perf tools: Add external commands to list-cmds
The `perf --list-cmds` output prints only internal commands, although
there is no reason for that from users' perspective.

Adding the external commands to commands array with NULL function
pointer allows printing all perf commands while not changing the logic
of command handler selection.

Signed-off-by: Michael Petlan <mpetlan@redhat.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/r/20220404221541.30312-2-mpetlan@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-04-09 14:21:00 -03:00
Michael Petlan
0ff26efe92 perf docs: Add perf-iostat link to manpages
Signed-off-by: Michael Petlan <mpetlan@redhat.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/r/20220404221541.30312-1-mpetlan@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-04-09 14:20:59 -03:00
Denis Nikitin
bc21e74d47 perf session: Remap buf if there is no space for event
If a perf event doesn't fit into remaining buffer space return NULL to
remap buf and fetch the event again.

Keep the logic to error out on inadequate input from fuzzing.

This fixes perf failing on ChromeOS (with 32b userspace):

  $ perf report -v -i perf.data
  ...
  prefetch_event: head=0x1fffff8 event->header_size=0x30, mmap_size=0x2000000: fuzzed or compressed perf.data?
  Error:
  failed to process sample

Fixes: 57fc032ad6 ("perf session: Avoid infinite loop when seeing invalid header.size")
Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Denis Nikitin <denik@chromium.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20220330031130.2152327-1-denik@chromium.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-04-09 14:20:59 -03:00
Linus Torvalds
e1f700ebd6 SCSI fixes on 20220409
38 Patches, two adding support for new devices (ufs, mvsas), a major
 set of six fixes in lpfc plus a huge chunk removal in pmcraid to get
 rid of a driver specific ioctl and a major rework of aha152x to get
 rid of the scsi_pointer.  The rest are minor fixes and obvious changes
 including several spelling updates.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:

 - add support for new devices (ufs, mvsas)

 - a major set of fixes in lpfc

 - get rid of a driver specific ioctl in pcmraid

 - a major rework of aha152x to get rid of the scsi_pointer.

 - minor fixes and obvious changes including several spelling updates.

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (36 commits)
  scsi: megaraid_sas: Target with invalid LUN ID is deleted during scan
  scsi: ufs: ufshpb: Fix a NULL check on list iterator
  scsi: sd: Clean up gendisk if device_add_disk() failed
  scsi: message: fusion: Remove redundant variable dmp
  scsi: mvsas: Add PCI ID of RocketRaid 2640
  scsi: sd: sd_read_cpr() requires VPD pages
  scsi: mpt3sas: Fail reset operation if config request timed out
  scsi: sym53c500_cs: Stop using struct scsi_pointer
  scsi: ufs: ufs-pci: Add support for Intel MTL
  scsi: mpt3sas: Fix mpt3sas_check_same_4gb_region() kdoc comment
  scsi: scsi_debug: Fix sdebug_blk_mq_poll() in_use_bm bitmap use
  scsi: bnx2i: Fix spelling mistake "mis-match" -> "mismatch"
  scsi: bnx2fc: Fix spelling mistake "mis-match" -> "mismatch"
  scsi: zorro7xx: Fix a resource leak in zorro7xx_remove_one()
  scsi: aic7xxx: Use standard PCI subsystem, subdevice defines
  scsi: ufs: qcom: Drop custom Android boot parameters
  scsi: core: sysfs: Remove comments that conflict with the actual logic
  scsi: hisi_sas: Remove stray fallthrough annotation
  scsi: virtio-scsi: Eliminate anonymous module_init & module_exit
  scsi: isci: Fix spelling mistake "doesnt" -> "doesn't"
  ...
2022-04-09 06:05:46 -10:00
Piotr Chmura
3ae87d2f25 media: si2157: unknown chip version Si2147-A30 ROM 0x50
Fix firmware file names assignment in si2157 tuner, allow for running
devices without firmware files needed.

modprobe gives error: unknown chip version Si2147-A30 ROM 0x50
Device initialization is interrupted.

Caused by:
1. table si2157_tuners has swapped fields rom_id and required vs struct
   si2157_tuner_info.
2. both firmware file names can be null for devices with
   required == false - device uses build-in firmware in this case

Tested on this device:
	m07ca:1871 AVerMedia Technologies, Inc. TD310 DVB-T/T2/C dongle

[mchehab: fix mangled patch]
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215726
Link: https://lore.kernel.org/lkml/5f660108-8812-383c-83e4-29ee0558d623@leemhuis.info/
Link: https://lore.kernel.org/linux-media/c4bcaff8-fbad-969e-ad47-e2c487ac02a1@gmail.com
Fixes: 1c35ba3bf9 ("media: si2157: use a different namespace for firmware")
Cc: stable@vger.kernel.org # 5.17.x
Signed-off-by: Piotr Chmura <chmooreck@gmail.com>
Tested-by: Robert Schlabbach <robert_s@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-09 17:45:49 +02:00
Athira Rajeev
299687e18a perf bench: Fix epoll bench to correct usage of affinity for machines with #CPUs > 1K
The 'perf bench epoll' testcase fails on systems with more than 1K CPUs.

Testcase: perf bench epoll all

Result snippet:
<<>>
Run summary [PID 106497]: 1399 threads monitoring on 64 file-descriptors for 8 secs.

perf: pthread_create: No such file or directory
<<>>

In epoll benchmarks (ctl, wait) pthread_create is invoked in do_threads
from respective bench_epoll_*  function. Though the logs shows direct
failure from pthread_create, the actual failure is from
"sched_setaffinity" returning EINVAL (invalid argument).

This happens because the default mask size in glibc is 1024. To overcome
this 1024 CPUs mask size limitation of cpu_set_t, change the mask size
using the CPU_*_S macros.

Patch addresses this by fixing all the epoll benchmarks to use CPU_ALLOC
to allocate cpumask, CPU_ALLOC_SIZE for size, and CPU_SET_S to set the
mask.

Reported-by: Disha Goel <disgoel@linux.vnet.ibm.com>
Signed-off-by: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Tested-by: Disha Goel <disgoel@linux.vnet.ibm.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nageswara R Sastry <rnsastry@linux.ibm.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Link: https://lore.kernel.org/r/20220406175113.87881-3-atrajeev@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-04-09 12:34:29 -03:00
Athira Rajeev
c9c2a427dd perf bench: Fix futex bench to correct usage of affinity for machines with #CPUs > 1K
The 'perf bench futex' testcase fails on systems with more than 1K CPUs.

Testcase: perf bench futex all

Failure snippet:
<<>>Running futex/hash benchmark...

perf: pthread_create: No such file or directory
<<>>

All the futex benchmarks (ie hash, lock-api, requeue, wake,
wake-parallel), pthread_create is invoked in respective bench_futex_*
function. Though the logs shows direct failure from pthread_create,
strace logs showed that actual failure is from  "sched_setaffinity"
returning EINVAL (invalid argument).

This happens because the default mask size in glibc is 1024. To overcome
this 1024 CPUs mask size limitation of cpu_set_t, change the mask size
using the CPU_*_S macros.

Patch addresses this by fixing all the futex benchmarks to use CPU_ALLOC
to allocate cpumask, CPU_ALLOC_SIZE for size, and CPU_SET_S to set the
mask.

Reported-by: Disha Goel <disgoel@linux.vnet.ibm.com>
Reviewed-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Tested-by: Disha Goel <disgoel@linux.vnet.ibm.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nageswara R Sastry <rnsastry@linux.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Link: https://lore.kernel.org/r/20220406175113.87881-2-atrajeev@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-04-09 12:34:29 -03:00
Adrian Hunter
aeee9dc53c perf tools: Fix perf's libperf_print callback
eprintf() does not expect va_list as the type of the 4th parameter.

Use veprintf() because it does.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Fixes: 428dab813a ("libperf: Merge libperf_set_print() into libperf_init()")
Cc: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/r/20220408132625.2451452-1-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-04-09 12:34:29 -03:00
James Clark
ffab487052 perf: arm-spe: Fix perf report --mem-mode
Since commit bb30acae4c ("perf report: Bail out --mem-mode if mem
info is not available") "perf mem report" and "perf report --mem-mode"
don't allow opening the file unless one of the events has
PERF_SAMPLE_DATA_SRC set.

SPE doesn't have this set even though synthetic memory data is generated
after it is decoded. Fix this issue by setting DATA_SRC on SPE events.
This has no effect on the data collected because the SPE driver doesn't
do anything with that flag and doesn't generate samples.

Fixes: bb30acae4c ("perf report: Bail out --mem-mode if mem info is not available")
Signed-off-by: James Clark <james.clark@arm.com>
Tested-by: Leo Yan <leo.yan@linaro.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20220408144056.1955535-1-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-04-09 12:34:29 -03:00
James Clark
fa7095c5c3 perf unwind: Don't show unwind error messages when augmenting frame pointer stack
Commit Fixes: b9f6fbb3b2 ("perf arm64: Inject missing frames when
using 'perf record --call-graph=fp'") intended to add a 'best effort'
DWARF unwind that improved the frame pointer stack in most scenarios.

It's expected that the unwind will fail sometimes, but this shouldn't be
reported as an error. It only works when the return address can be
determined from the contents of the link register alone.

Fix the error shown when the unwinder requires extra registers by adding
a new flag that suppresses error messages. This flag is not set in the
normal --call-graph=dwarf unwind mode so that behavior is not changed.

Fixes: b9f6fbb3b2 ("perf arm64: Inject missing frames when using 'perf record --call-graph=fp'")
Reported-by: John Garry <john.garry@huawei.com>
Signed-off-by: James Clark <james.clark@arm.com>
Tested-by: John Garry <john.garry@huawei.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexandre Truong <alexandre.truong@arm.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20220406145651.1392529-1-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-04-09 12:34:29 -03:00
Arnaldo Carvalho de Melo
278aaba2c5 tools headers arm64: Sync arm64's cputype.h with the kernel sources
To get the changes in:

  83bea32ac7 ("arm64: Add part number for Arm Cortex-A78AE")

That addresses this perf build warning:

  Warning: Kernel ABI header at 'tools/arch/arm64/include/asm/cputype.h' differs from latest version at 'arch/arm64/include/asm/cputype.h'
  diff -u tools/arch/arm64/include/asm/cputype.h arch/arm64/include/asm/cputype.h

Cc: Ali Saidi <alisaidi@amazon.com>
Cc: Andrew Kilroy <andrew.kilroy@arm.com>
Cc: Chanho Park <chanho61.park@samsung.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: James Clark <james.clark@arm.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Will Deacon <will@kernel.org>
Link: http://lore.kernel.org/lkml/
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-04-09 12:34:29 -03:00
Chengdong Li
290fa68bdc perf test tsc: Fix error message when not supported
By default `perf test tsc` does not return the error message when the
child process detected kernel does not support it. Instead, the child
process prints an error message to stderr, unfortunately stderr is
redirected to /dev/null when verbose <= 0.

This patch does:

- return TEST_SKIP to the parent process instead of TEST_OK when
  perf_read_tsc_conversion() is not supported.

- Add a new subtest of testing if TSC is supported on current
  architecture by moving exist code to a separate function.
  It avoids two places in test__perf_time_to_tsc() that return
  TEST_SKIP by doing this.

- Extend the test suite definition to contain above two subtests.
  Current test_suite and test_case structs do not support printing skip
  reason when the number of subtest less than 1. To print skip reason, it
  is necessary to extend current test suite definition.

Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Chengdong Li <chengdongli@tencent.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: likexu@tencent.com
Link: https://lore.kernel.org/r/20220408084748.43707-1-chengdongli@tencent.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-04-09 12:34:29 -03:00
Arnaldo Carvalho de Melo
3a8a047586 perf build: Don't use -ffat-lto-objects in the python feature test when building with clang-13
Using -ffat-lto-objects in the python feature test when building with
clang-13 results in:

  clang-13: error: optimization flag '-ffat-lto-objects' is not supported [-Werror,-Wignored-optimization-argument]
  error: command '/usr/sbin/clang' failed with exit code 1
  cp: cannot stat '/tmp/build/perf/python_ext_build/lib/perf*.so': No such file or directory
  make[2]: *** [Makefile.perf:639: /tmp/build/perf/python/perf.so] Error 1

Noticed when building on a docker.io/library/archlinux:base container.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Fangrui Song <maskray@google.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Keeping <john@metanate.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-04-09 12:34:29 -03:00
Arnaldo Carvalho de Melo
dd6e1fe91c perf python: Fix probing for some clang command line options
The clang compiler complains about some options even without a source
file being available, while others require one, so use the simple
tools/build/feature/test-hello.c file.

Then check for the "is not supported" string in its output, in addition
to the "unknown argument" already being looked for.

This was noticed when building with clang-13 where -ffat-lto-objects
isn't supported and since we were looking just for "unknown argument"
and not providing a source code to clang, was mistakenly assumed as
being available and not being filtered to set of command line options
provided to clang, leading to a build failure.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Fangrui Song <maskray@google.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Keeping <john@metanate.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Sedat Dilek <sedat.dilek@gmail.com>
Link: http://lore.kernel.org/lkml/
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-04-09 12:34:29 -03:00
Arnaldo Carvalho de Melo
41caff459a tools build: Filter out options and warnings not supported by clang
These make the feature check fail when using clang, so remove them just
like is done in tools/perf/Makefile.config to build perf itself.

Adding -Wno-compound-token-split-by-macro to tools/perf/Makefile.config
when building with clang is also necessary to avoid these warnings
turned into errors (-Werror):

    CC      /tmp/build/perf/util/scripting-engines/trace-event-perl.o
  In file included from util/scripting-engines/trace-event-perl.c:35:
  In file included from /usr/lib64/perl5/CORE/perl.h:4085:
  In file included from /usr/lib64/perl5/CORE/hv.h:659:
  In file included from /usr/lib64/perl5/CORE/hv_func.h:34:
  In file included from /usr/lib64/perl5/CORE/sbox32_hash.h:4:
  /usr/lib64/perl5/CORE/zaphod32_hash.h:150:5: error: '(' and '{' tokens introducing statement expression appear in different macro expansion contexts [-Werror,-Wcompound-token-split-by-macro]
      ZAPHOD32_SCRAMBLE32(state[0],0x9fade23b);
      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  /usr/lib64/perl5/CORE/zaphod32_hash.h:80:38: note: expanded from macro 'ZAPHOD32_SCRAMBLE32'
  #define ZAPHOD32_SCRAMBLE32(v,prime) STMT_START {  \
                                       ^~~~~~~~~~
  /usr/lib64/perl5/CORE/perl.h:737:29: note: expanded from macro 'STMT_START'
  #   define STMT_START   (void)( /* gcc supports "({ STATEMENTS; })" */
                                ^
  /usr/lib64/perl5/CORE/zaphod32_hash.h:150:5: note: '{' token is here
      ZAPHOD32_SCRAMBLE32(state[0],0x9fade23b);
      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  /usr/lib64/perl5/CORE/zaphod32_hash.h:80:49: note: expanded from macro 'ZAPHOD32_SCRAMBLE32'
  #define ZAPHOD32_SCRAMBLE32(v,prime) STMT_START {  \
                                                  ^
  /usr/lib64/perl5/CORE/zaphod32_hash.h:150:5: error: '}' and ')' tokens terminating statement expression appear in different macro expansion contexts [-Werror,-Wcompound-token-split-by-macro]
      ZAPHOD32_SCRAMBLE32(state[0],0x9fade23b);
      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  /usr/lib64/perl5/CORE/zaphod32_hash.h:87:41: note: expanded from macro 'ZAPHOD32_SCRAMBLE32'
      v ^= (v>>23);                       \
                                          ^
  /usr/lib64/perl5/CORE/zaphod32_hash.h:150:5: note: ')' token is here
      ZAPHOD32_SCRAMBLE32(state[0],0x9fade23b);
      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  /usr/lib64/perl5/CORE/zaphod32_hash.h:88:3: note: expanded from macro 'ZAPHOD32_SCRAMBLE32'
  } STMT_END
    ^~~~~~~~
  /usr/lib64/perl5/CORE/perl.h:738:21: note: expanded from macro 'STMT_END'
  #   define STMT_END     )
                          ^

Please refer to the discussion on the Link: tag below, where Nathan
clarifies the situation:

<quote>
acme> And then get to the problems at the end of this message, which seem
acme> similar to the problem described here:
acme>
acme> From  Nathan Chancellor <>
acme> Subject	[PATCH] mwifiex: Remove unnecessary braces from HostCmd_SET_SEQ_NO_BSS_INFO
acme>
acme> https://lkml.org/lkml/2020/9/1/135
acme>
acme> So perhaps in this case its better to disable that
acme> -Werror,-Wcompound-token-split-by-macro when building with clang?

Yes, I think that is probably the best solution. As far as I can tell,
at least in this file and context, the warning appears harmless, as the
"create a GNU C statement expression from two different macros" is very
much intentional, based on the presence of PERL_USE_GCC_BRACE_GROUPS.
The warning is fixed in upstream Perl by just avoiding creating GNU C
statement expressions using STMT_START and STMT_END:

  https://github.com/Perl/perl5/issues/18780
  https://github.com/Perl/perl5/pull/18984

If I am reading the source code correctly, an alternative to disabling
the warning would be specifying -DPERL_GCC_BRACE_GROUPS_FORBIDDEN but it
seems like that might end up impacting more than just this site,
according to the issue discussion above.
</quote>

Based-on-a-patch-by: Sedat Dilek <sedat.dilek@gmail.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com> # Debian/Selfmade LLVM-14 (x86-64)
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Fangrui Song <maskray@google.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Keeping <john@metanate.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Link: http://lore.kernel.org/lkml/YkxWcYzph5pC1EK8@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-04-09 12:34:16 -03:00
Arnaldo Carvalho de Melo
541f695cbc tools build: Use $(shell ) instead of `` to get embedded libperl's ccopts
Just like its done for ldopts and for both in tools/perf/Makefile.config.

Using `` to initialize PERL_EMBED_CCOPTS somehow precludes using:

  $(filter-out SOMETHING_TO_FILTER,$(PERL_EMBED_CCOPTS))

And we need to do it to allow for building with versions of clang where
some gcc options selected by distros are not available.

Tested-by: Sedat Dilek <sedat.dilek@gmail.com> # Debian/Selfmade LLVM-14 (x86-64)
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Fangrui Song <maskray@google.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Keeping <john@metanate.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Link: http://lore.kernel.org/lkml/YktYX2OnLtyobRYD@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-04-09 12:33:38 -03:00
Arnaldo Carvalho de Melo
940442deea tools include UAPI: Sync linux/vhost.h with the kernel sources
To get the changes in:

  b04d910af3 ("vdpa: support exposing the count of vqs to userspace")
  a61280dddd ("vdpa: support exposing the config size to userspace")

Silencing this perf build warning:

  Warning: Kernel ABI header at 'tools/include/uapi/linux/vhost.h' differs from latest version at 'include/uapi/linux/vhost.h'
  diff -u tools/include/uapi/linux/vhost.h include/uapi/linux/vhost.h

  $ diff -u tools/include/uapi/linux/vhost.h include/uapi/linux/vhost.h
  --- tools/include/uapi/linux/vhost.h	2021-07-15 16:17:01.840818309 -0300
  +++ include/uapi/linux/vhost.h	2022-04-02 18:55:05.702522387 -0300
  @@ -150,4 +150,11 @@
   /* Get the valid iova range */
   #define VHOST_VDPA_GET_IOVA_RANGE	_IOR(VHOST_VIRTIO, 0x78, \
   					     struct vhost_vdpa_iova_range)
  +
  +/* Get the config size */
  +#define VHOST_VDPA_GET_CONFIG_SIZE	_IOR(VHOST_VIRTIO, 0x79, __u32)
  +
  +/* Get the count of all virtqueues */
  +#define VHOST_VDPA_GET_VQS_COUNT	_IOR(VHOST_VIRTIO, 0x80, __u32)
  +
   #endif
  $ tools/perf/trace/beauty/vhost_virtio_ioctl.sh > before
  $ cp include/uapi/linux/vhost.h tools/include/uapi/linux/vhost.h
  $ tools/perf/trace/beauty/vhost_virtio_ioctl.sh > after
  $ diff -u before after
  --- before	2022-04-04 14:52:25.036375145 -0300
  +++ after	2022-04-04 14:52:31.906549976 -0300
  @@ -38,4 +38,6 @@
   	[0x73] = "VDPA_GET_CONFIG",
   	[0x76] = "VDPA_GET_VRING_NUM",
   	[0x78] = "VDPA_GET_IOVA_RANGE",
  +	[0x79] = "VDPA_GET_CONFIG_SIZE",
  +	[0x80] = "VDPA_GET_VQS_COUNT",
   };
  $

Cc: Longpeng <longpeng2@huawei.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Link: https://lore.kernel.org/lkml/YksxoFcOARk%2Fldev@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-04-09 11:42:33 -03:00
Linus Torvalds
f1b45d8ccb block-5.18-2022-04-08
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Merge tag 'block-5.18-2022-04-08' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
 "Nothing major in here, just a few small fixes:

   - Small series of neglected drbd patches (Christoph, Lv, Xiaomeng)

   - Remove dead variable in cdrom (Enze)"

* tag 'block-5.18-2022-04-08' of git://git.kernel.dk/linux-block:
  drbd: set QUEUE_FLAG_STABLE_WRITES
  drbd: fix an invalid memory access caused by incorrect use of list iterator
  drbd: Fix five use after free bugs in get_initial_state
  cdrom: remove unused variable
2022-04-08 18:58:03 -10:00
Linus Torvalds
4d6f9f2475 io_uring-5.18-2022-04-08
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Merge tag 'io_uring-5.18-2022-04-08' of git://git.kernel.dk/linux-block

Pull io_uring fixes from Jens Axboe:
 "A bit bigger than usual post merge window, largely due to a revert and
  a fix of at what point files are assigned for requests.

  The latter fixing a linked request use case where a dependent link can
  rely on what file is assigned consistently.

  Summary:

   - 32-bit compat fix for IORING_REGISTER_IOWQ_AFF (Eugene)

   - File assignment fixes (me)

   - Revert of the NAPI poll addition from this merge window. The author
     isn't available right now to engage on this, so let's revert it and
     we can retry for the 5.19 release (me, Jakub)

   - Fix a timeout removal race (me)

   - File update and SCM fixes (Pavel)"

* tag 'io_uring-5.18-2022-04-08' of git://git.kernel.dk/linux-block:
  io_uring: fix race between timeout flush and removal
  io_uring: use nospec annotation for more indexes
  io_uring: zero tag on rsrc removal
  io_uring: don't touch scm_fp_list after queueing skb
  io_uring: nospec index for tags on files update
  io_uring: implement compat handling for IORING_REGISTER_IOWQ_AFF
  Revert "io_uring: Add support for napi_busy_poll"
  io_uring: drop the old style inflight file tracking
  io_uring: defer file assignment
  io_uring: propagate issue_flags state down to file assignment
  io_uring: move read/write file prep state into actual opcode handler
  io_uring: defer splice/tee file validity check until command issue
  io_uring: don't check req->file in io_fsync_prep()
2022-04-08 18:50:14 -10:00
Linus Torvalds
f335af1048 v5.18 first rc pull request
Several bug fixes for old bugs:
 
 - Welcome Leon as co-maintainer for RDMA so we are back to having two
   people
 
 - Some corner cases are fixed in mlx5's MR code
 
 - Long standing CM bug where a DREQ at the wrong time can result in a long
   timeout
 
 - Missing locking and refcounting in hf1
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma fixes from Jason Gunthorpe:
 "Several bug fixes for old bugs:

   - Welcome Leon as co-maintainer for RDMA so we are back to having two
     people

   - Some corner cases are fixed in mlx5's MR code

   - Long standing CM bug where a DREQ at the wrong time can result in a
     long timeout

   - Missing locking and refcounting in hf1"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  RDMA/hfi1: Fix use-after-free bug for mm struct
  IB/rdmavt: add lock to call to rvt_error_qp to prevent a race condition
  IB/cm: Cancel mad on the DREQ event when the state is MRA_REP_RCVD
  RDMA/mlx5: Add a missing update of cache->last_add
  RDMA/mlx5: Don't remove cache MRs when a delay is needed
  MAINTAINERS: Update qib and hfi1 related drivers
  MAINTAINERS: Add Leon Romanovsky to RDMA maintainers
2022-04-08 18:29:02 -10:00
Linus Torvalds
d017a3167b ACPI updates for 5.18-rc2
- Revert an ACPI processor driver change related to cache
    invalidation in acpi_idle_play_dead() that clearly was a mistake
    and introduced user-visible regressions (Akihiko Odaki).
 
  - Replace the last instance of acpi_bus_get_device() added during
    the recent merge window and drop the function to prevent more
    users of it from being added (Rafael Wysocki).
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Merge tag 'acpi-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
 "These revert a problematic commit from the 5.17 development cycle and
  finalize the elimination of acpi_bus_get_device() that mostly took
  place during the recent merge window.

  Specifics:

   - Revert an ACPI processor driver change related to cache
     invalidation in acpi_idle_play_dead() that clearly was a mistake
     and introduced user-visible regressions (Akihiko Odaki).

   - Replace the last instance of acpi_bus_get_device() added during the
     recent merge window and drop the function to prevent more users of
     it from being added (Rafael Wysocki)"

* tag 'acpi-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: bus: Eliminate acpi_bus_get_device()
  Revert "ACPI: processor: idle: Only flush cache on entering C3"
2022-04-08 18:23:02 -10:00
Heiko Stuebner
4054eee929 RISC-V: KVM: include missing hwcap.h into vcpu_fp
vcpu_fp uses the riscv_isa_extension mechanism which gets
defined in hwcap.h but doesn't include that head file.

While it seems to work in most cases, in certain conditions
this can lead to build failures like

../arch/riscv/kvm/vcpu_fp.c: In function ‘kvm_riscv_vcpu_fp_reset’:
../arch/riscv/kvm/vcpu_fp.c:22:13: error: implicit declaration of function ‘riscv_isa_extension_available’ [-Werror=implicit-function-declaration]
   22 |         if (riscv_isa_extension_available(&isa, f) ||
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../arch/riscv/kvm/vcpu_fp.c:22:49: error: ‘f’ undeclared (first use in this function)
   22 |         if (riscv_isa_extension_available(&isa, f) ||

Fix this by simply including the necessary header.

Fixes: 0a86512dc1 ("RISC-V: KVM: Factor-out FP virtualization into separate
sources")
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Anup Patel <anup@brainfault.org>
2022-04-09 09:16:00 +05:30