Commit Graph

37552 Commits

Author SHA1 Message Date
Paul E. McKenney
0feda4da6d torture: Add "--no-" as synonym for "--do-no-" in torture.sh
In order to (for example) omit the real-time testing that torture.sh would
otherwise carry out, you put "--do-no-rt" on the torture.sh command line.
This works, but it is all too easy to instead type "--no-rt".  This is
unambiguous and easier to type, so this commit therefore allows all
"--no-" arguments as synonyms for their "--do-no-" counterparts.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2023-07-14 15:10:56 -07:00
Paul E. McKenney
1304affd35 rcu: Remove formal-verification tests
The CBMC-based formal-verification testing for SRCU was quite the thing
back in 2016, but the problem is that SRCU changes too quickly for the
scripting to keep up.  In addition, more recently, SRCU's grace-period
ordering has been formally modeled by a group of Linux-kernel memory-model
litmus tests.

This commit therefore removes the pioneering formal-verification tests.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2023-07-14 15:10:56 -07:00
Paul E. McKenney
965167e8e6 rcutorture: Remove obsolete BOOTPARAM_HOTPLUG_CPU0 Kconfig option
Now that the BOOTPARAM_HOTPLUG_CPU0 Kconfig option is in the process of
being removed, it is time to remove rcutorture's use of it.

Link: https://lore.kernel.org/lkml/20230414232309.510911744@linutronix.de/
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: <x86@kernel.org>
2023-07-14 15:10:56 -07:00
Paul E. McKenney
3f68f9c822 scftorture: Add CONFIG_PREEMPT_DYNAMIC=n to NOPREEMPT scenario
It is no longer possible to build a kernel with a preemption-disabled
RCU without use of CONFIG_PREEMPT_DYNAMIC=n.  This commit therefore
adds CONFIG_PREEMPT_DYNAMIC=n to the scf torture type's NOPREEMPT
scenario file.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2023-07-14 15:02:57 -07:00
Paul E. McKenney
822e425099 torture: Scale scftorture memory based on number of CPUs
As the number of CPUs increases, the number of outstanding no-wait
smp_call_function() handlers also increases, so that the default of
2G of memory is not always sufficient on 80-CPU systems.  This commit
therefore scales the amount of memory specified to qemu based on the
number of CPUs specified to the scftorture test instance.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2023-07-14 15:02:57 -07:00
Paul E. McKenney
8afeb54190 rcuscale: Add CONFIG_PREEMPT_DYNAMIC=n to TRACE01 scenario
It is no longer possible to build a kernel with a preemption-disabled
RCU without use of CONFIG_PREEMPT_DYNAMIC=n.  This commit therefore
adds CONFIG_PREEMPT_DYNAMIC=n to the rcuscale torture type's TRACE01
scenario file.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2023-07-14 15:01:49 -07:00
Paul E. McKenney
a15ec57cfc rcuscale: Add RCU Tasks Rude testing
Add a "tasks-rude" option to the rcuscale.scale_type module parameter.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2023-07-14 15:01:49 -07:00
Paul E. McKenney
1d702e2eff rcuscale: Print grace-period kthread CPU time, if recorded
This commit prints out the CPU time consumed by the grace-period kthread,
if the specified RCU flavor supports this notion.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2023-07-14 15:01:49 -07:00
Paul E. McKenney
8f78f046e2 refscale: Add CONFIG_PREEMPT_DYNAMIC=n to NOPREEMPT scenario
It is no longer possible to build a kernel with a preemption-disabled
RCU without use of CONFIG_PREEMPT_DYNAMIC=n.  This commit therefore
adds CONFIG_PREEMPT_DYNAMIC=n to the refscale torture type's NOPREEMPT
scenario file.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2023-07-14 15:01:04 -07:00
John Hubbard
569f8b501b selftests/arm64: fix build failure during the "emit_tests" step
The build failure reported in [1] occurred because commit <9fc96c7c19df>
("selftests: error out if kernel header files are not yet built") added
a new "kernel_header_files" dependency to "all", and that triggered
another, pre-existing problem. Specifically, the arm64 selftests
override the emit_tests target, and that override improperly declares
itself to depend upon the "all" target.

This is a problem because the "emit_tests" target in lib.mk was not
intended to be overridden. emit_tests is a very simple, sequential build
target that was originally invoked from the "install" target, which in
turn, depends upon "all".

That approach worked for years. But with 9fc96c7c19 in place,
emit_tests failed, because it does not set up all of the elaborate
things that "install" does. And that caused the new
"kernel_header_files" target (which depends upon $(KBUILD_OUTPUT) being
correct) to fail.

Some detail: The "all" target is .PHONY. Therefore, each target that
depends on "all" will cause it to be invoked again, and because
dependencies are managed quite loosely in the selftests Makefiles, many
things will run, even "all" is invoked several times in immediate
succession. So this is not a "real" failure, as far as build steps go:
everything gets built, but "all" reports a problem when invoked a second
time from a bad environment.

To fix this, simply remove the unnecessary "all" dependency from the
overridden emit_tests target. The dependency is still effectively
honored, because again, invocation is via "install", which also depends
upon "all".

An alternative approach would be to harden the emit_tests target so that
it can depend upon "all", but that's a lot more complicated and hard to
get right, and doesn't seem worth it, especially given that emit_tests
should probably not be overridden at all.

[1] https://lore.kernel.org/20230710-kselftest-fix-arm64-v1-1-48e872844f25@kernel.org

Fixes: 9fc96c7c19 ("selftests: error out if kernel header files are not yet built")
Reported-by: Mark Brown <broonie@kernel.org>
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Tested-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2023-07-14 12:33:35 -06:00
John Hubbard
c77896b143 selftests/riscv: fix potential build failure during the "emit_tests" step
The riscv selftests (which were modeled after the arm64 selftests) are
improperly declaring the "emit_tests" target to depend upon the "all"
target. This approach, when combined with commit 9fc96c7c19
("selftests: error out if kernel header files are not yet built"), has
caused build failures [1] on arm64, and is likely to cause similar
failures for riscv.

To fix this, simply remove the unnecessary "all" dependency from the
emit_tests target. The dependency is still effectively honored, because
again, invocation is via "install", which also depends upon "all".

An alternative approach would be to harden the emit_tests target so that
it can depend upon "all", but that's a lot more complicated and hard to
get right, and doesn't seem worth it, especially given that emit_tests
should probably not be overridden at all.

[1] https://lore.kernel.org/20230710-kselftest-fix-arm64-v1-1-48e872844f25@kernel.org

Fixes: 9fc96c7c19 ("selftests: error out if kernel header files are not yet built")
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Tested-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2023-07-14 12:32:42 -06:00
Ryan Roberts
f13be0ad53 selftests/mm: give scripts execute permission
When run under run_vmtests.sh, test scripts were failing to run with
"permission denied" due to the scripts not being executable.

It is also annoying not to be able to directly invoke run_vmtests.sh,
which is solved by giving also it the execute permission.

Link: https://lkml.kernel.org/r/20230713135440.3651409-3-ryan.roberts@arm.com
Signed-off-by: Ryan Roberts <ryan.roberts@arm.com>
Cc: SeongJae Park <sj@kernel.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Florent Revest <revest@chromium.org>
Cc: Jérôme Glisse <jglisse@redhat.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-07-14 09:24:31 -07:00
Arnaldo Carvalho de Melo
963293ff05 tools headers arm64: Sync arm64's cputype.h with the kernel sources
To get the changes in:

  e910baa9c1 ("KVM: arm64: vgic: Add Apple M2 PRO/MAX cpus to the list of broken SEIS implementations")

That makes this perf source code to be rebuilt:

  CC      /tmp/build/perf-tools/util/arm-spe.o

The changes in the above patch don't affect things that are used in
arm-spe.c (things like MIDR_NEOVERSE_N1, etc). Unsure if Apple M2 has
SPE (Statistical Profiling Extension) :-)

That addresses this perf build warning:

  Warning: Kernel ABI header differences:
    diff -u tools/arch/arm64/include/asm/cputype.h arch/arm64/include/asm/cputype.h

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ali Saidi <alisaidi@amazon.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/lkml/
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-07-14 10:36:16 -03:00
Arnaldo Carvalho de Melo
28e898ffa0 tools include UAPI: Sync the sound/asound.h copy with the kernel sources
Picking the changes from:

  01dfa8e969 ("ALSA: ump: Add info flag bit for static blocks")
  e375b8a045 ("ALSA: ump: Add more attributes to UMP EP and FB info")
  30fc139260 ("ALSA: ump: Add ioctls to inquiry UMP EP and Block info via control API")
  127ae6f6da ("ALSA: rawmidi: Skip UMP devices at SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE")
  e3a8a5b726 ("ALSA: rawmidi: UMP support")
  a4bb75c4f1 ("ALSA: uapi: pcm: control the filling of the silence samples for drain")

That harvests some new ioctls:

  $ tools/perf/trace/beauty/sndrv_ctl_ioctl.sh > before.ctl
  $ tools/perf/trace/beauty/sndrv_pcm_ioctl.sh > before.pcm
  $ cp include/uapi/sound/asound.h tools/include/uapi/sound/asound.h
  $ tools/perf/trace/beauty/sndrv_ctl_ioctl.sh > after.ctl
  $ tools/perf/trace/beauty/sndrv_pcm_ioctl.sh > after.pcm
  $ diff -u before.ctl after.ctl
  --- before.ctl	2023-07-14 10:17:00.319591889 -0300
  +++ after.ctl	2023-07-14 10:17:24.668248373 -0300
  @@ -22,6 +22,9 @@
   	[0x40] = "RAWMIDI_NEXT_DEVICE",
   	[0x41] = "RAWMIDI_INFO",
   	[0x42] = "RAWMIDI_PREFER_SUBDEVICE",
  +	[0x43] = "UMP_NEXT_DEVICE",
  +	[0x44] = "UMP_ENDPOINT_INFO",
  +	[0x45] = "UMP_BLOCK_INFO",
   	[0xd0] = "POWER",
   	[0xd1] = "POWER_STATE",
   };
  $ diff -u before.pcm after.pcm
  $

Now those will be decoded when they appear, see a system wide 'perf
trace' session example here:

  # perf trace -e ioctl --max-events=10
       0.000 ( 0.010 ms): gnome-shell/2240 ioctl(fd: 9, cmd: DRM_MODE_RMFB, arg: 0x7ffc0041d54c)         = 0
       2.444 ( 0.005 ms): wireplumber/2304 ioctl(fd: 47, cmd: TIOCOUTQ, arg: 0x7f16e9afea24)             = 0
       2.452 ( 0.002 ms): wireplumber/2304 ioctl(fd: 47, cmd: TIOCOUTQ, arg: 0x7f16e9afea24)             = 0
      11.348 ( 0.010 ms): gnome-shell/2240 ioctl(fd: 14, cmd: DRM_I915_IRQ_WAIT, arg: 0x7ffc0041ccf0)    = 0
      11.406 ( 0.037 ms): gnome-shel:cs0/2259 ioctl(fd: 14, cmd: DRM_I915_IRQ_EMIT, arg: 0x7f3cf69fdc60) = 0
      11.476 ( 0.009 ms): gnome-shell/2240 ioctl(fd: 9, cmd: DRM_MODE_ADDFB2, arg: 0x7ffc0041ce50)       = 0
      11.497 ( 0.019 ms): gnome-shell/2240 ioctl(fd: 9, cmd: DRM_MODE_ATOMIC, arg: 0x7ffc0041cdf0)       = 0
      12.481 ( 0.020 ms): firefox:cs0/3651 ioctl(fd: 40, cmd: DRM_I915_IRQ_EMIT, arg: 0x7f1c365fea60)    = 0
      12.529 ( 0.009 ms): firefox:cs0/3651 ioctl(fd: 40, cmd: DRM_I915_IRQ_EMIT, arg: 0x7f1c365feab0)    = 0
      12.624 ( 0.018 ms): firefox:cs0/3651 ioctl(fd: 40, cmd: DRM_I915_IRQ_EMIT, arg: 0x7f1c365fea30)    = 0
  #

Silencing these perf build warnings:

  Warning: Kernel ABI header differences:
    diff -u tools/include/uapi/sound/asound.h include/uapi/sound/asound.h

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/lkml/ZLFOrTE2+xZBgHGe@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-07-14 10:33:50 -03:00
Arnaldo Carvalho de Melo
7b86159355 tools include UAPI: Sync linux/vhost.h with the kernel sources
To get the changes in:

  228a27cf78 ("vhost: Allow worker switching while work is queueing")
  c1ecd8e950 ("vhost: allow userspace to create workers")

To pick up these changes and support them:

  $ 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	2023-07-14 09:58:14.268249807 -0300
  +++ after	2023-07-14 09:58:23.041493892 -0300
  @@ -10,6 +10,7 @@
   	[0x12] = "SET_VRING_BASE",
   	[0x13] = "SET_VRING_ENDIAN",
   	[0x14] = "GET_VRING_ENDIAN",
  +	[0x15] = "ATTACH_VRING_WORKER",
   	[0x20] = "SET_VRING_KICK",
   	[0x21] = "SET_VRING_CALL",
   	[0x22] = "SET_VRING_ERR",
  @@ -31,10 +32,12 @@
   	[0x7C] = "VDPA_SET_GROUP_ASID",
   	[0x7D] = "VDPA_SUSPEND",
   	[0x7E] = "VDPA_RESUME",
  +	[0x9] = "FREE_WORKER",
   };
   static const char *vhost_virtio_ioctl_read_cmds[] = {
   	[0x00] = "GET_FEATURES",
   	[0x12] = "GET_VRING_BASE",
  +	[0x16] = "GET_VRING_WORKER",
   	[0x26] = "GET_BACKEND_FEATURES",
   	[0x70] = "VDPA_GET_DEVICE_ID",
   	[0x71] = "VDPA_GET_STATUS",
  @@ -44,6 +47,7 @@
   	[0x79] = "VDPA_GET_CONFIG_SIZE",
   	[0x7A] = "VDPA_GET_AS_NUM",
   	[0x7B] = "VDPA_GET_VRING_GROUP",
  +	[0x8] = "NEW_WORKER",
   	[0x80] = "VDPA_GET_VQS_COUNT",
   	[0x81] = "VDPA_GET_GROUP_NUM",
   };
  $

For instance, see how those 'cmd' ioctl arguments get translated, now
ATTACH_VRING_WORKER, GET_VRING_WORKER and NEW_WORKER, will be as well:

  # perf trace -a -e ioctl --max-events=10
       0.000 ( 0.011 ms): pipewire/2261 ioctl(fd: 60, cmd: SNDRV_PCM_HWSYNC, arg: 0x1)                   = 0
      21.353 ( 0.014 ms): pipewire/2261 ioctl(fd: 60, cmd: SNDRV_PCM_HWSYNC, arg: 0x1)                   = 0
      25.766 ( 0.014 ms): gnome-shell/2196 ioctl(fd: 14, cmd: DRM_I915_IRQ_WAIT, arg: 0x7ffe4a22c740)    = 0
      25.845 ( 0.034 ms): gnome-shel:cs0/2212 ioctl(fd: 14, cmd: DRM_I915_IRQ_EMIT, arg: 0x7fd43915dc70) = 0
      25.916 ( 0.011 ms): gnome-shell/2196 ioctl(fd: 9, cmd: DRM_MODE_ADDFB2, arg: 0x7ffe4a22c8a0)       = 0
      25.941 ( 0.025 ms): gnome-shell/2196 ioctl(fd: 9, cmd: DRM_MODE_ATOMIC, arg: 0x7ffe4a22c840)       = 0
      32.915 ( 0.009 ms): gnome-shell/2196 ioctl(fd: 9, cmd: DRM_MODE_RMFB, arg: 0x7ffe4a22cf9c)         = 0
      42.522 ( 0.013 ms): gnome-shell/2196 ioctl(fd: 14, cmd: DRM_I915_IRQ_WAIT, arg: 0x7ffe4a22c740)    = 0
      42.579 ( 0.031 ms): gnome-shel:cs0/2212 ioctl(fd: 14, cmd: DRM_I915_IRQ_EMIT, arg: 0x7fd43915dc70) = 0
      42.644 ( 0.010 ms): gnome-shell/2196 ioctl(fd: 9, cmd: DRM_MODE_ADDFB2, arg: 0x7ffe4a22c8a0)       = 0
  #

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Mike Christie <michael.christie@oracle.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/lkml/ZLFJ%2FRsDGYiaH5nj@kernel.org/
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-07-14 10:16:03 -03:00
Arnaldo Carvalho de Melo
0e022f5bf7 perf beauty: Update copy of linux/socket.h with the kernel sources
To pick the changes in:

  b848b26c66 ("net: Kill MSG_SENDPAGE_NOTLAST")
  5e2ff6704a ("scm: add SO_PASSPIDFD and SCM_PIDFD")
  4fe38acdac ("net: Block MSG_SENDPAGE_* from being passed to sendmsg() by userspace")
  b841b901c4 ("net: Declare MSG_SPLICE_PAGES internal sendmsg() flag")

That don't result in any changes in the tables generated from that
header.

But while updating I noticed we were not handling MSG_BATCH and MSG_ZEROCOPY in the
hard coded table for the msg flags table, add them.

This silences this perf build warning:

  Warning: Kernel ABI header differences:
    diff -u tools/perf/trace/beauty/include/linux/socket.h include/linux/socket.h

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Mikhalitsyn <alexander@mihalicyn.com>
Cc: David Howells <dhowells@redhat.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Ian Rogers <irogers@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/lkml/ZLFGuHDwUGDGXdoR@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-07-14 09:59:56 -03:00
Petr Machata
9cbb3da4f4 selftests: router_bridge_pvid_vlan_upper: Add a new selftest
This tests whether addition and deletion of a VLAN upper that coincides
with the current PVID setting throws off forwarding.

This selftests is specifically geared towards offloading drivers. In
particular, mlxsw used to fail this selftest, and an earlier patch in this
patchset fixes the issue. However, there's nothing HW-specific in the test
itself (it absolutely is supposed to pass on SW datapath), and therefore it
is put into the generic forwarding directory.

Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Danielle Ratson <danieller@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-07-14 10:20:15 +01:00
Petr Machata
b0307b7726 selftests: router_bridge_vlan_upper_pvid: Add a new selftest
This tests whether changes to PVID that coincide with an existing VLAN
upper throw off forwarding. This selftests is specifically geared towards
offloading drivers, but since there's nothing HW-specific in the test
itself (it absolutely is supposed to pass on SW datapath), it is put into
the generic forwarding directory.

Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Danielle Ratson <danieller@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-07-14 10:20:15 +01:00
Petr Machata
d4172a93b2 selftests: router_bridge_vlan: Add PVID change test
Add an alternative path involving VLAN 777 instead of the current 555. Then
add tests that verify that marking 777 as PVID makes the 555 path not work,
and the 777 path work.

Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Danielle Ratson <danieller@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-07-14 10:20:15 +01:00
Petr Machata
c7203a2981 selftests: router_bridge: Add tests to remove and add PVID
This test relies on PVID being configured on the bridge itself. Thus when
it is deconfigured, the system should lose the ability to forward traffic.
Later when it is added again, the ability to forward traffic should be
regained. Add tests to exercise these configuration changes and verify
results.

Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Danielle Ratson <danieller@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-07-14 10:20:15 +01:00
Petr Machata
5f44a7144c selftests: forwarding: lib: Add ping6_, ping_test_fails()
Add two helpers to run a ping test that succeeds when the pings themselves
fail.

Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Danielle Ratson <danieller@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-07-14 10:20:15 +01:00
Sabrina Dubroca
3b5222e2ac selftests: rtnetlink: add MACsec offload tests
Like the IPsec offload test, this requires netdevsim.

Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-07-14 09:16:53 +01:00
Geliang Tang
e571fb09c8 selftests: mptcp: add speed env var
Use a new env var speed instead of using 'speed' argument of run_tests()
and do_transfer(). It can be set with 'fast', 'slow', or the actual speed
number:

  run_tests $ns1 $ns2 10.0.1.1 slow

  ->

  speed=slow \
          run_tests $ns1 $ns2 10.0.1.1.

Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Link: https://lore.kernel.org/r/20230712-upstream-net-next-20230712-selftests-mptcp-use-local-env-v1-4-f1c8b62fbf95@tessares.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-13 20:34:51 -07:00
Geliang Tang
4aadde088a selftests: mptcp: add fullmesh env var
Use a new env var fullmesh instead of passing 'fullmesh_*' to addr_nr_ns2.
It can be set with the actual value of addr_nr_ns2 now:

  addr_nr_ns2=fullmesh_1 \
          run_tests $ns1 $ns2 10.0.1.1

  ->

  fullmesh=1 \
          run_tests $ns1 $ns2 10.0.1.1.

Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Link: https://lore.kernel.org/r/20230712-upstream-net-next-20230712-selftests-mptcp-use-local-env-v1-3-f1c8b62fbf95@tessares.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-13 20:34:51 -07:00
Geliang Tang
080b7f5733 selftests: mptcp: add fastclose env var
Use a new env var fastclose instead of passing fastclose to addr_nr_ns2.
It can be set with 'server' or 'client':

  addr_nr_ns2=fastclose_client \
          run_tests $ns1 $ns2 10.0.1.1

  ->

  fastclose=client \
          run_tests $ns1 $ns2 10.0.1.1.

With this change, the fullmesh flag setting code can be moved into
pm_nl_set_endpoint() from do_transfer().

Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Link: https://lore.kernel.org/r/20230712-upstream-net-next-20230712-selftests-mptcp-use-local-env-v1-2-f1c8b62fbf95@tessares.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-13 20:34:51 -07:00
Geliang Tang
662aa22d7d selftests: mptcp: set all env vars as local ones
It would be better to move the declaration of all the env variables to
do_transfer(), run_tests(), or pm_nl_set_endpoint() as local variables,
instead of exporting them globally at the beginning of the file.

Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Link: https://lore.kernel.org/r/20230712-upstream-net-next-20230712-selftests-mptcp-use-local-env-v1-1-f1c8b62fbf95@tessares.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-13 20:34:50 -07:00
Jakub Kicinski
d2afa89f66 Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Alexei Starovoitov says:

====================
pull-request: bpf-next 2023-07-13

We've added 67 non-merge commits during the last 15 day(s) which contain
a total of 106 files changed, 4444 insertions(+), 619 deletions(-).

The main changes are:

1) Fix bpftool build in presence of stale vmlinux.h,
   from Alexander Lobakin.

2) Introduce bpf_me_mcache_free_rcu() and fix OOM under stress,
   from Alexei Starovoitov.

3) Teach verifier actual bounds of bpf_get_smp_processor_id()
   and fix perf+libbpf issue related to custom section handling,
   from Andrii Nakryiko.

4) Introduce bpf map element count, from Anton Protopopov.

5) Check skb ownership against full socket, from Kui-Feng Lee.

6) Support for up to 12 arguments in BPF trampoline, from Menglong Dong.

7) Export rcu_request_urgent_qs_task, from Paul E. McKenney.

8) Fix BTF walking of unions, from Yafang Shao.

9) Extend link_info for kprobe_multi and perf_event links,
   from Yafang Shao.

* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (67 commits)
  selftests/bpf: Add selftest for PTR_UNTRUSTED
  bpf: Fix an error in verifying a field in a union
  selftests/bpf: Add selftests for nested_trust
  bpf: Fix an error around PTR_UNTRUSTED
  selftests/bpf: add testcase for TRACING with 6+ arguments
  bpf, x86: allow function arguments up to 12 for TRACING
  bpf, x86: save/restore regs with BPF_DW size
  bpftool: Use "fallthrough;" keyword instead of comments
  bpf: Add object leak check.
  bpf: Convert bpf_cpumask to bpf_mem_cache_free_rcu.
  bpf: Introduce bpf_mem_free_rcu() similar to kfree_rcu().
  selftests/bpf: Improve test coverage of bpf_mem_alloc.
  rcu: Export rcu_request_urgent_qs_task()
  bpf: Allow reuse from waiting_for_gp_ttrace list.
  bpf: Add a hint to allocated objects.
  bpf: Change bpf_mem_cache draining process.
  bpf: Further refactor alloc_bulk().
  bpf: Factor out inc/dec of active flag into helpers.
  bpf: Refactor alloc_bulk().
  bpf: Let free_all() return the number of freed elements.
  ...
====================

Link: https://lore.kernel.org/r/20230714020910.80794-1-alexei.starovoitov@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-13 19:13:24 -07:00
Jakub Kicinski
eb1b24a9bb Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR.

No conflicts or adjacent changes.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-13 17:33:28 -07:00
Yafang Shao
1cd0e7715c selftests/bpf: Add selftest for PTR_UNTRUSTED
Add a new selftest to check the PTR_UNTRUSTED condition. Below is the
result,

 #160     ptr_untrusted:OK

Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Link: https://lore.kernel.org/r/20230713025642.27477-5-laoar.shao@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-07-13 16:24:29 -07:00
Yafang Shao
d2284d6825 selftests/bpf: Add selftests for nested_trust
Add selftests for nested_strust to check whehter PTR_UNTRUSTED is cleared
as expected, the result as follows:

 #141/1   nested_trust/test_read_cpumask:OK
 #141/2   nested_trust/test_skb_field:OK                    <<<<
 #141/3   nested_trust/test_invalid_nested_user_cpus:OK
 #141/4   nested_trust/test_invalid_nested_offset:OK
 #141/5   nested_trust/test_invalid_skb_field:OK            <<<<
 #141     nested_trust:OK

The #141/2 and #141/5 are newly added.

Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Link: https://lore.kernel.org/r/20230713025642.27477-3-laoar.shao@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-07-13 16:24:29 -07:00
Menglong Dong
5e9cf77d81 selftests/bpf: add testcase for TRACING with 6+ arguments
Add fentry_many_args.c and fexit_many_args.c to test the fentry/fexit
with 7/11 arguments. As this feature is not supported by arm64 yet, we
disable these testcases for arm64 in DENYLIST.aarch64. We can combine
them with fentry_test.c/fexit_test.c when arm64 is supported too.

Correspondingly, add bpf_testmod_fentry_test7() and
bpf_testmod_fentry_test11() to bpf_testmod.c

Meanwhile, add bpf_modify_return_test2() to test_run.c to test the
MODIFY_RETURN with 7 arguments.

Add bpf_testmod_test_struct_arg_7/bpf_testmod_test_struct_arg_7 in
bpf_testmod.c to test the struct in the arguments.

And the testcases passed on x86_64:

./test_progs -t fexit
Summary: 5/14 PASSED, 0 SKIPPED, 0 FAILED

./test_progs -t fentry
Summary: 3/2 PASSED, 0 SKIPPED, 0 FAILED

./test_progs -t modify_return
Summary: 1/0 PASSED, 0 SKIPPED, 0 FAILED

./test_progs -t tracing_struct
Summary: 1/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Menglong Dong <imagedong@tencent.com>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/r/20230713040738.1789742-4-imagedong@tencent.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-07-13 16:04:56 -07:00
Linus Torvalds
b1983d427a Merge tag 'net-6.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
 "Including fixes from netfilter, wireless and ebpf.

  Current release - regressions:

   - netfilter: conntrack: gre: don't set assured flag for clash entries

   - wifi: iwlwifi: remove 'use_tfh' config to fix crash

  Previous releases - regressions:

   - ipv6: fix a potential refcount underflow for idev

   - icmp6: ifix null-ptr-deref of ip6_null_entry->rt6i_idev in
     icmp6_dev()

   - bpf: fix max stack depth check for async callbacks

   - eth: mlx5e:
      - check for NOT_READY flag state after locking
      - fix page_pool page fragment tracking for XDP

   - eth: igc:
      - fix tx hang issue when QBV gate is closed
      - fix corner cases for TSN offload

   - eth: octeontx2-af: Move validation of ptp pointer before its usage

   - eth: ena: fix shift-out-of-bounds in exponential backoff

  Previous releases - always broken:

   - core: prevent skb corruption on frag list segmentation

   - sched:
      - cls_fw: fix improper refcount update leads to use-after-free
      - sch_qfq: account for stab overhead in qfq_enqueue

   - netfilter:
      - report use refcount overflow
      - prevent OOB access in nft_byteorder_eval

   - wifi: mt7921e: fix init command fail with enabled device

   - eth: ocelot: fix oversize frame dropping for preemptible TCs

   - eth: fec: recycle pages for transmitted XDP frames"

* tag 'net-6.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (79 commits)
  selftests: tc-testing: add test for qfq with stab overhead
  net/sched: sch_qfq: account for stab overhead in qfq_enqueue
  selftests: tc-testing: add tests for qfq mtu sanity check
  net/sched: sch_qfq: reintroduce lmax bound check for MTU
  wifi: cfg80211: fix receiving mesh packets without RFC1042 header
  wifi: rtw89: debug: fix error code in rtw89_debug_priv_send_h2c_set()
  net: txgbe: fix eeprom calculation error
  net/sched: make psched_mtu() RTNL-less safe
  net: ena: fix shift-out-of-bounds in exponential backoff
  netdevsim: fix uninitialized data in nsim_dev_trap_fa_cookie_write()
  net/sched: flower: Ensure both minimum and maximum ports are specified
  MAINTAINERS: Add another mailing list for QUALCOMM ETHQOS ETHERNET DRIVER
  docs: netdev: update the URL of the status page
  wifi: iwlwifi: remove 'use_tfh' config to fix crash
  xdp: use trusted arguments in XDP hints kfuncs
  bpf: cpumap: Fix memory leak in cpu_map_update_elem
  wifi: airo: avoid uninitialized warning in airo_get_rate()
  octeontx2-pf: Add additional check for MCAM rules
  net: dsa: Removed unneeded of_node_put in felix_parse_ports_node
  net: fec: use netdev_err_once() instead of netdev_err()
  ...
2023-07-13 14:21:22 -07:00
Linus Torvalds
ebc27aacee Merge tag 'trace-v6.5-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fixes from Steven Rostedt:

 - Fix some missing-prototype warnings

 - Fix user events struct args (did not include size of struct)

   When creating a user event, the "struct" keyword is to denote that
   the size of the field will be passed in. But the parsing failed to
   handle this case.

 - Add selftest to struct sizes for user events

 - Fix sample code for direct trampolines.

   The sample code for direct trampolines attached to handle_mm_fault().
   But the prototype changed and the direct trampoline sample code was
   not updated. Direct trampolines needs to have the arguments correct
   otherwise it can fail or crash the system.

 - Remove unused ftrace_regs_caller_ret() prototype.

 - Quiet false positive of FORTIFY_SOURCE

   Due to backward compatibility, the structure used to save stack
   traces in the kernel had a fixed size of 8. This structure is
   exported to user space via the tracing format file. A change was made
   to allow more than 8 functions to be recorded, and user space now
   uses the size field to know how many functions are actually in the
   stack.

   But the structure still has size of 8 (even though it points into the
   ring buffer that has the required amount allocated to hold a full
   stack.

   This was fine until the fortifier noticed that the
   memcpy(&entry->caller, stack, size) was greater than the 8 functions
   and would complain at runtime about it.

   Hide this by using a pointer to the stack location on the ring buffer
   instead of using the address of the entry structure caller field.

 - Fix a deadloop in reading trace_pipe that was caused by a mismatch
   between ring_buffer_empty() returning false which then asked to read
   the data, but the read code uses rb_num_of_entries() that returned
   zero, and causing a infinite "retry".

 - Fix a warning caused by not using all pages allocated to store ftrace
   functions, where this can happen if the linker inserts a bunch of
   "NULL" entries, causing the accounting of how many pages needed to be
   off.

 - Fix histogram synthetic event crashing when the start event is
   removed and the end event is still using a variable from it

 - Fix memory leak in freeing iter->temp in tracing_release_pipe()

* tag 'trace-v6.5-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  tracing: Fix memory leak of iter->temp when reading trace_pipe
  tracing/histograms: Add histograms to hist_vars if they have referenced variables
  tracing: Stop FORTIFY_SOURCE complaining about stack trace caller
  ftrace: Fix possible warning on checking all pages used in ftrace_process_locs()
  ring-buffer: Fix deadloop issue on reading trace_pipe
  tracing: arm64: Avoid missing-prototype warnings
  selftests/user_events: Test struct size match cases
  tracing/user_events: Fix struct arg size match check
  x86/ftrace: Remove unsued extern declaration ftrace_regs_caller_ret()
  arm64: ftrace: Add direct call trampoline samples support
  samples: ftrace: Save required argument registers in sample trampolines
2023-07-13 13:44:28 -07:00
Minjie Du
e8b03aef19 tools: timers: fix freq average calculation
Delete a duplicate assignment from this function implementation.
The note means ppm is average of the two actual freq samples.
But ppm have a duplicate assignment.

Signed-off-by: Minjie Du <duminjie@vivo.com>
Acked-by: John Stultz <jstultz@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2023-07-13 13:32:36 -06:00
Ben Hutchings
d7de5d8e40 cpupower: Bump soname version
Several functions in the libcpupower API are renamed or removed in
Linux 4.7.  This is an backward-incompatible ABI change, so the
library soname should change from libcpupower.so.0 to
libcpupower.so.1.

Fixes: ac5a181d06 ("cpupower: Add cpuidle parts into library")
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Salvatore Bonaccorso <carnil@debian.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2023-07-13 12:55:42 -06:00
Ricardo Cañuelo
b33b873156 selftests/mincore: fix skip condition for check_huge_pages test
The check_huge_pages test was failing instead of skipping on qemu-armv7
because the skip condition wasn't handled properly. Add an additional
check to fix it.

Signed-off-by: Ricardo Cañuelo <ricardo.canuelo@collabora.com>
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
Reviewed-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Tested-by: Anders Roxell <anders.roxell@linaro.org>
Closes: https://lore.kernel.org/all/CA+G9fYuoB8Ug8PcTU-YGmemL7_eeEksXFihvxWF6OikD7sK7pA@mail.gmail.com
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2023-07-13 12:51:13 -06:00
Mark Brown
47ee108a11 regmap: Provide user selectable option to enable regmap
Since apparently enabling all the KUnit tests shouldn't enable any new
subsystems it is hard to enable the regmap KUnit tests in normal KUnit
testing scenarios that don't enable any drivers.  Add a Kconfig option
to help with this and include it in the KUnit all tests config.

Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230712-regmap-kunit-enable-v1-1-13e296bd0204@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2023-07-13 16:20:28 +01:00
Thomas Weißschuh
49319832de selftests/nolibc: drop test chmod_net
The test relies on /proc/$PID/net to allow chmod() operations.
It is the only file or directory in /proc/$PID/ to allow this and a bug.
That bug will be fixed in the next patch in the series and therefore
the test would start failing.

Link: https://lore.kernel.org/lkml/d0d111ef-edae-4760-83fb-36db84278da1@t-8ch.de/
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Fixes: b4844fa0bd ("selftests/nolibc: implement a few tests for various syscalls")
Tested-by: Zhangjin Wu <falcon@tinylab.org>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Message-Id: <20230624-proc-net-setattr-v1-1-73176812adee@weissschuh.net>
Signed-off-by: Christian Brauner <brauner@kernel.org>
2023-07-13 13:55:14 +02:00
Pedro Tammela
137f6219da selftests: tc-testing: add test for qfq with stab overhead
A packet with stab overhead greater than QFQ_MAX_LMAX should be dropped
by the QFQ qdisc as it can't handle such lengths.

Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Pedro Tammela <pctammela@mojatatu.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Tested-by: Zhengchao Shao <shaozhengchao@huawei.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-07-13 11:11:59 +02:00
Pedro Tammela
c5a06fdc61 selftests: tc-testing: add tests for qfq mtu sanity check
QFQ only supports a certain bound of MTU size so make sure
we check for this requirement in the tests.

Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Pedro Tammela <pctammela@mojatatu.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Tested-by: Zhengchao Shao <shaozhengchao@huawei.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-07-13 11:11:59 +02:00
Colin Ian King
645e583d26 selftests: ALSA: Fix fclose on an already fclosed file pointer
In the case where a sysfs file cannot be opened the error return path
fcloses file pointer fpl, however, fpl has already been closed in the
previous stanza. Fix the double fclose by removing it.

Fixes: 10b98a4db1 ("selftests: ALSA: Add test for the 'pcmtest' driver")
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230712140122.457206-1-colin.i.king@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-07-13 08:08:08 +02:00
Ido Schimmel
209218e479 selftests: forwarding: Add test cases for flower port range matching
Add test cases to verify that flower port range matching works
correctly. Test both source and destination port ranges, with different
combinations of IPv4/IPv6 and TCP/UDP, on both ingress and egress.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Link: https://lore.kernel.org/r/9d47c9cd4522b2d335b13ce8f6c9b33199298cee.1689092769.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-12 16:57:18 -07:00
Ido Schimmel
0a1a818d8a selftests: mlxsw: Test port range registers' occupancy
Test that filters that match on the same port range, but with different
combination of IPv4/IPv6 and TCP/UDP all use the same port range
register by observing port range registers' occupancy via
devlink-resource.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Link: https://lore.kernel.org/r/0a2eb63b234fb062ff011e80231868cc80000c81.1689092769.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-12 16:57:18 -07:00
Ido Schimmel
45c5a38476 selftests: mlxsw: Add scale test for port ranges
Query the maximum number of supported port range registers using
devlink-resource and test that this number can be reached by configuring
tc filters with different port ranges. Test that an error is returned in
case the maximum number is exceeded.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Link: https://lore.kernel.org/r/48eee181270d9f291e09d1858c7b26a3f7fcc164.1689092769.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-12 16:57:18 -07:00
Quentin Monnet
0a5550b116 bpftool: Use "fallthrough;" keyword instead of comments
After using "__fallthrough;" in a switch/case block in bpftool's
btf_dumper.c [0], and then turning it into a comment [1] to prevent a
merge conflict in linux-next when the keyword was changed into just
"fallthrough;" [2], we can now drop the comment and use the new keyword,
no underscores.

Also update the other occurrence of "/* fallthrough */" in bpftool.

[0] commit 9fd496848b ("bpftool: Support inline annotations when dumping the CFG of a program")
[1] commit 4b7ef71ac9 ("bpftool: Replace "__fallthrough" by a comment to address merge conflict")
[2] commit f7a858bffc ("tools: Rename __fallthrough to fallthrough")

Signed-off-by: Quentin Monnet <quentin@isovalent.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20230712152322.81758-1-quentin@isovalent.com
2023-07-12 23:50:11 +02:00
Alexei Starovoitov
f76faa65c9 selftests/bpf: Improve test coverage of bpf_mem_alloc.
bpf_obj_new() calls bpf_mem_alloc(), but doing alloc/free of 8 elements
is not triggering watermark conditions in bpf_mem_alloc.
Increase to 200 elements to make sure alloc_bulk/free_bulk is exercised.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Hou Tao <houtao1@huawei.com>
Link: https://lore.kernel.org/bpf/20230706033447.54696-12-alexei.starovoitov@gmail.com
2023-07-12 23:45:23 +02:00
Ian Rogers
5b10c18d1b perf parse-events: Avoid SEGV if PMU lookup fails for legacy cache terms
libfuzzer found the following command could SEGV:

  $ perf stat -e cpu/L2,L2/ true

This is because the L2 term rewrites the perf_event_attr type to
PERF_TYPE_HW_CACHE which then fails the PMU lookup for the second
legacy cache term.

The new failure is consistent with repeated hardware terms:

  $ perf stat -e cpu/L2,L2/ true
  event syntax error: 'cpu/L2,L2/'
                              \___ Failed to find PMU for type 3

  Initial error:
  event syntax error: 'cpu/L2,L2/'
                              \___ Failed to find PMU for type 3
  Run 'perf list' for a list of valid events

   Usage: perf stat [<options>] [<command>]

      -e, --event <event>   event selector. use 'perf list' to list available events
  $ perf stat -e cpu/cycles,cycles/ true
  event syntax error: 'cpu/cycles,cycles/'
                                  \___ Failed to find PMU for type 0

  Initial error:
  event syntax error: 'cpu/cycles,cycles/'
                                  \___ Failed to find PMU for type 0
  Run 'perf list' for a list of valid events

   Usage: perf stat [<options>] [<command>]

      -e, --event <event>   event selector. use 'perf list' to list available events

Committer testing:

Before:

  $ perf stat -e cpu/L2,L2/ true
  Segmentation fault (core dumped)
  $

After:

  $ perf stat -e cpu/L2,L2/ true
  event syntax error: 'cpu/L2,L2/'
                              \___ Failed to find PMU for type 3

  Initial error:
  event syntax error: 'cpu/L2,L2/'
                              \___ Failed to find PMU for type 3
  Run 'perf list' for a list of valid events

   Usage: perf stat [<options>] [<command>]

      -e, --event <event>   event selector. use 'perf list' to list available events
  $

Fixes: 6fd1e51915 ("perf parse-events: Support PMUs for legacy cache events")
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20230712065250.1450306-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-07-12 16:03:24 -03:00
Linus Torvalds
1d7546042f Merge tag 'for-linus-2023071101' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID fixes from Benjamin Tissoires:

 - AMD SFH shift-out-of-bounds fix (Basavaraj Natikar)

 - avoid struct memcpy overrun warning in the hid-hyperv module (Arnd
   Bergmann)

 - a quick HID kselftests script fix for our CI to be happy (Benjamin
   Tissoires)

 - various fixes and additions of device IDs

* tag 'for-linus-2023071101' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
  HID: amd_sfh: Fix for shift-out-of-bounds
  HID: amd_sfh: Rename the float32 variable
  HID: input: fix mapping for camera access keys
  HID: logitech-hidpp: Add wired USB id for Logitech G502 Lightspeed
  HID: nvidia-shield: Pack inner/related declarations in HOSTCMD reports
  HID: hyperv: avoid struct memcpy overrun warning
  selftests: hid: fix vmtests.sh not running make headers
2023-07-12 11:56:22 -07:00
Beau Belgrave
769e637276 selftests/user_events: Test struct size match cases
The self tests for user_events currently does not ensure that the edge
case for struct types work properly with size differences.

Add cases for mis-matching struct names and sizes to ensure they work
properly.

Link: https://lkml.kernel.org/r/20230629235049.581-3-beaub@linux.microsoft.com

Cc: Shuah Khan <skhan@linuxfoundation.org>
Cc: linux-kselftest@vger.kernel.org
Signed-off-by: Beau Belgrave <beaub@linux.microsoft.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2023-07-12 12:04:47 -04:00
Andrii Nakryiko
c21de5fc5f selftests/bpf: extend existing map resize tests for per-cpu use case
Add a per-cpu array resizing use case and demonstrate how
bpf_get_smp_processor_id() can be used to directly access proper data
with no extra checks.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20230711232400.1658562-2-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-07-12 07:57:18 -07:00