Commit Graph

20046 Commits

Author SHA1 Message Date
Linus Torvalds
4a94c43323 tpmdd fixes for Linux v5.5-rc3
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Merge tag 'tpmdd-next-20191219' of git://git.infradead.org/users/jjs/linux-tpmdd

Pull tpm fixes from Jarkko Sakkinen:
 "Bunch of fixes for rc3"

* tag 'tpmdd-next-20191219' of git://git.infradead.org/users/jjs/linux-tpmdd:
  tpm/tpm_ftpm_tee: add shutdown call back
  tpm: selftest: cleanup after unseal with wrong auth/policy test
  tpm: selftest: add test covering async mode
  tpm: fix invalid locking in NONBLOCKING mode
  security: keys: trusted: fix lost handle flush
  tpm_tis: reserve chip for duration of tpm_tis_core_init
  KEYS: asymmetric: return ENOMEM if akcipher_request_alloc() fails
  KEYS: remove CONFIG_KEYS_COMPAT
2019-12-18 17:17:36 -08:00
Linus Torvalds
89c683cd06 Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf tooling fixes from Ingo  Molnar:
 "These are all perf tooling changes: most of them are fixes.

  Note that the large CPU count related fixes go beyond regression
  fixes, but the IPI-flood symptoms are severe enough that I think
  justifies their inclusion"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (38 commits)
  perf vendor events s390: Remove name from L1D_RO_EXCL_WRITES description
  perf vendor events s390: Fix counter long description for DTLB1_GPAGE_WRITES
  libtraceevent: Allow custom libdir path
  perf header: Fix false warning when there are no duplicate cache entries
  perf metricgroup: Fix printing event names of metric group with multiple events
  perf/x86/pmu-events: Fix Kernel_Utilization metric
  perf top: Do not bail out when perf_env__read_cpuid() returns ENOSYS
  perf arch: Make the default get_cpuid() return compatible error
  tools headers kvm: Sync linux/kvm.h with the kernel sources
  tools headers UAPI: Update tools's copy of drm.h headers
  tools headers UAPI: Sync drm/i915_drm.h with the kernel sources
  perf inject: Fix processing of ID index for injected instruction tracing
  perf report: Bail out --mem-mode if mem info is not available
  perf report: Make -F more strict like -s
  perf report/top TUI: Replace pr_err() with ui__error()
  libtraceevent: Copy pkg-config file to output folder when using O=
  libtraceevent: Fix lib installation with O=
  perf kvm: Clarify the 'perf kvm' -i and -o command line options
  tools arch x86: Sync asm/cpufeatures.h with the kernel sources
  perf beauty: Add CLEAR_SIGHAND support for clone's flags arg
  ...
2019-12-17 11:03:57 -08:00
Tadeusz Struk
a9920d3bad tpm: selftest: cleanup after unseal with wrong auth/policy test
Unseal with wrong auth or wrong policy test affects DA lockout
and eventually causes the tests to fail with:
"ProtocolError: TPM_RC_LOCKOUT: rc=0x00000921"
when the tests run multiple times.
Send tpm clear command after the test to reset the DA counters.

Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
2019-12-17 12:20:15 +02:00
Tadeusz Struk
8f84bddcfa tpm: selftest: add test covering async mode
Add a test that sends a tpm cmd in an async mode.
Currently there is a gap in test coverage with regards
to this functionality.

Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
2019-12-17 12:20:12 +02:00
Ed Maste
58b3bafff8 perf vendor events s390: Remove name from L1D_RO_EXCL_WRITES description
In 7fcfa9a2d9 an unintended prefix "Counter:18 Name:" was removed from
the description for L1D_RO_EXCL_WRITES, but the extra name remained in
the description.  Remove it too.

Fixes: 7fcfa9a2d9 ("perf list: Fix s390 counter long description for L1D_RO_EXCL_WRITES")
Signed-off-by: Ed Maste <emaste@freebsd.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nick Hu <nickhu@andestech.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Vincent Chen <deanbo422@gmail.com>
Link: http://lore.kernel.org/lkml/20191212145346.5026-1-emaste@freefall.freebsd.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-12-16 13:40:26 -03:00
Ed Maste
28396b7df0 perf vendor events s390: Fix counter long description for DTLB1_GPAGE_WRITES
The cf_z13 counter DTLB1_GPAGE_WRITES included a prefix
'Counter:132\tName:'.

This is incorrect; remove the prefix as with 7fcfa9a2d9 for cf_z14.

Signed-off-by: Ed Maste <emaste@freebsd.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nick Hu <nickhu@andestech.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Vincent Chen <deanbo422@gmail.com>
Link: http://lore.kernel.org/lkml/20191212143446.88582-1-emaste@freefall.freebsd.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-12-16 13:40:26 -03:00
Sudip Mukherjee
c09982f8e2 libtraceevent: Allow custom libdir path
When I use prefix=/usr and try to install libtraceevent in my laptop it
tries to install in /usr/lib64. I am not having any folder as /usr/lib64
and also the debian policy doesnot allow installing in /usr/lib64. It
should be in /usr/lib/x86_64-linux-gnu/.

Quote: No package for a 64 bit architecture may install files in
	/usr/lib64/ or in a subdirectory of it.

ref: https://www.debian.org/doc/debian-policy/ch-opersys.html

Make it more flexible by allowing to mention libdir_relative while
installing so that distros can mention the path according to their
policy or use the default one.

Signed-off-by: Sudipm Mukherjee <sudipm.mukherjee@gmail.com>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Sudipm Mukherjee <sudipm.mukherjee@gmail.com>
Cc: linux-trace-devel@vger.kernel.org
Link: http://lore.kernel.org/lkml/20191207111440.6574-1-sudipm.mukherjee@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-12-16 13:40:26 -03:00
SeongJae Park
4eac734486 kselftest: Support old perl versions
On an old perl such as v5.10.1, `kselftest/prefix.pl` gives below error
message:

    Can't locate object method "autoflush" via package "IO::Handle" at kselftest/prefix.pl line 10.

This commit fixes the error by explicitly specifying the use of the
`IO::Handle` package.

Signed-off-by: SeongJae Park <sjpark@amazon.de>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2019-12-11 10:31:16 -07:00
SeongJae Park
d187801d1a kselftest/runner: Print new line in print of timeout log
If a timeout failure occurs, kselftest kills the test process and prints
the timeout log.  If the test process has killed while printing a log
that ends with new line, the timeout log can be printed in middle of the
test process output so that it can be seems like a comment, as below:

    # test_process_log	not ok 3 selftests: timers: nsleep-lat # TIMEOUT

This commit avoids such problem by printing one more line before the
TIMEOUT failure log.

Signed-off-by: SeongJae Park <sjpark@amazon.de>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2019-12-11 10:30:24 -07:00
Michael Ellerman
3a019636e6 selftests: Fix dangling documentation references to kselftest_module.sh
Commit c78fd76f2b ("selftests: Move kselftest_module.sh into
kselftest/") moved kselftest_module.sh but missed updating a few
references to the path in documentation.

Fixes: c78fd76f2b ("selftests: Move kselftest_module.sh into kselftest/")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2019-12-11 10:27:01 -07:00
Michael Petlan
2870782687 perf header: Fix false warning when there are no duplicate cache entries
Before this patch, perf expected that there might be NPROC*4 unique
cache entries at max, however, it also expected that some of them would
be shared and/or of the same size, thus the final number of entries
would be reduced to be lower than NPROC*4. In case the number of entries
hadn't been reduced (was NPROC*4), the warning was printed.

However, some systems might have unusual cache topology, such as the
following two-processor KVM guest:

	cpu  level  shared_cpu_list  size
	  0     1         0           32K
	  0     1         0           64K
	  0     2         0           512K
	  0     3         0           8192K
	  1     1         1           32K
	  1     1         1           64K
	  1     2         1           512K
	  1     3         1           8192K

This KVM guest has 8 (NPROC*4) unique cache entries, which used to make
perf printing the message, although there actually aren't "way too many
cpu caches".

v2: Removing unused argument.

v3: Unifying the way we obtain number of cpus.

v4: Removed '& UINT_MAX' construct which is redundant.

Signed-off-by: Michael Petlan <mpetlan@redhat.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
LPU-Reference: 20191208162056.20772-1-mpetlan@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-12-11 12:28:14 -03:00
Kajol Jain
eb573e746b perf metricgroup: Fix printing event names of metric group with multiple events
Commit f01642e491 ("perf metricgroup: Support multiple events for
metricgroup") introduced support for multiple events in a metric group.
But with the current upstream, metric events names are not printed
properly

In power9 platform:

command:# ./perf stat --metric-only -M translation -C 0 -I 1000 sleep 2
     1.000208486
     2.000368863
     2.001400558

Similarly in skylake platform:

command:./perf stat --metric-only -M Power -I 1000
     1.000579994
     2.002189493

With current upstream version, issue is with event name comparison logic
in find_evsel_group(). Current logic is to compare events belonging to a
metric group to the events in perf_evlist.  Since the break statement is
missing in the loop used for comparison between metric group and
perf_evlist events, the loop continues to execute even after getting a
pattern match, and end up in discarding the matches.

Incase of single metric event belongs to metric group, its working fine,
because in case of single event once it compare all events it reaches to
end of perf_evlist.

Example for single metric event in power9 platform:

command:# ./perf stat --metric-only  -M branches_per_inst -I 1000 sleep 1
     1.000094653                  0.2
     1.001337059                  0.0

This patch fixes the issue by making sure once we found all events
belongs to that metric event matched in find_evsel_group(), we
successfully break from that loop by adding corresponding condition.

With this patch:
In power9 platform:

command:# ./perf stat --metric-only -M translation -C 0 -I 1000 sleep 2
result:#
            time  derat_4k_miss_rate_percent  derat_4k_miss_ratio derat_miss_ratio derat_64k_miss_rate_percent  derat_64k_miss_ratio dslb_miss_rate_percent islb_miss_rate_percent
     1.000135672                         0.0                  0.3              1.0                         0.0                   0.2                    0.0                    0.0
     2.000380617                         0.0                  0.0              0.0                         0.0                   0.0                    0.0                    0.0

command:# ./perf stat --metric-only -M Power -I 1000

Similarly in skylake platform:
result:#
            time    Turbo_Utilization    C3_Core_Residency  C6_Core_Residency  C7_Core_Residency    C2_Pkg_Residency  C3_Pkg_Residency     C6_Pkg_Residency   C7_Pkg_Residency
     1.000563580                  0.3                  0.0                2.6               44.2                21.9               0.0                  0.0               0.0
     2.002235027                  0.4                  0.0                2.7               43.0                20.7               0.0                  0.0               0.0

Committer testing:

  Before:

  [root@seventh ~]# perf stat --metric-only -M Power -I 1000
  #           time
       1.000383223
       2.001168182
       3.001968545
       4.002741200
       5.003442022
  ^C     5.777687244

  [root@seventh ~]#

  After the patch:

  [root@seventh ~]# perf stat --metric-only -M Power -I 1000
  #           time    Turbo_Utilization    C3_Core_Residency    C6_Core_Residency    C7_Core_Residency     C2_Pkg_Residency     C3_Pkg_Residency     C6_Pkg_Residency     C7_Pkg_Residency
       1.000406577                  0.4                  0.1                  1.4                 97.0                  0.0                  0.0                  0.0                  0.0
       2.001481572                  0.3                  0.0                  0.6                 97.9                  0.0                  0.0                  0.0                  0.0
       3.002332585                  0.2                  0.0                  1.0                 97.5                  0.0                  0.0                  0.0                  0.0
       4.003196624                  0.2                  0.0                  0.3                 98.6                  0.0                  0.0                  0.0                  0.0
       5.004063851                  0.3                  0.0                  0.7                 97.7                  0.0                  0.0                  0.0                  0.0
  ^C     5.471260276                  0.2                  0.0                  0.5                 49.3                  0.0                  0.0                  0.0                  0.0

  [root@seventh ~]#
  [root@seventh ~]# dmesg | grep -i skylake
  [    0.187807] Performance Events: PEBS fmt3+, Skylake events, 32-deep LBR, full-width counters, Intel PMU driver.
  [root@seventh ~]#

Fixes: f01642e491 ("perf metricgroup: Support multiple events for metricgroup")
Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
Reviewed-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Anju T Sudhakar <anju@linux.vnet.ibm.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20191120084059.24458-1-kjain@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-12-11 12:28:14 -03:00
Ravi Bangoria
0dd674efaf perf/x86/pmu-events: Fix Kernel_Utilization metric
Kernel Utilization should divide ref cycles spent in kernel with total
ref cycles.

Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Haiyan Song <haiyanx.song@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/lkml/20191204162121.29998-1-ravi.bangoria@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-12-11 12:28:14 -03:00
Arnaldo Carvalho de Melo
61208e6e10 perf top: Do not bail out when perf_env__read_cpuid() returns ENOSYS
'perf top' stopped working on hw architectures that do not provide a
get_cpuid() implementation and thus fallback to the weak get_cpuid()
default function.

This is done because at annotation time we may need it in the arch
specific annotation init routine, but that is only being used by arches
that do provide a get_cpuid() implementation:

  $ find tools/  -name "*.[ch]" | xargs grep 'evlist->env'
  tools/perf/builtin-top.c:	top.evlist->env = &perf_env;
  tools/perf/util/evsel.c:		return evsel->evlist->env;
  tools/perf/util/s390-cpumsf.c:	sf->machine_type = s390_cpumsf_get_type(session->evlist->env->cpuid);
  tools/perf/util/header.c:	session->evlist->env = &header->env;
  tools/perf/util/sample-raw.c:	const char *arch_pf = perf_env__arch(evlist->env);
  $

  $ find tools/perf/arch  -name "*.[ch]" | xargs grep -w get_cpuid
  tools/perf/arch/x86/util/auxtrace.c:	ret = get_cpuid(buffer, sizeof(buffer));
  tools/perf/arch/x86/util/header.c:get_cpuid(char *buffer, size_t sz)
  tools/perf/arch/powerpc/util/header.c:get_cpuid(char *buffer, size_t sz)
  tools/perf/arch/s390/util/header.c: * Implementation of get_cpuid().
  tools/perf/arch/s390/util/header.c:int get_cpuid(char *buffer, size_t sz)
  tools/perf/arch/s390/util/header.c:	if (buf && get_cpuid(buf, 128))
  $

For 'report' or 'script', i.e. tools working on perf.data files, that is
setup while reading the header, its just top that needs to explicitely
read it at tool start.

Fixes: 608127f737 ("perf top: Initialize perf_env->cpuid, needed by the per arch annotation init routine")
Reported-by: John Garry <john.garry@huawei.com>
Analysed-by: Jiri Olsa <jolsa@kernel.org>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: John Garry <john.garry@huawei.com> # arm64
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Will Deacon <will@kernel.org>
Link: https://lkml.kernel.org/n/tip-lxwjr0cd2eggzx04a780ffrv@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-12-11 12:26:25 -03:00
Arnaldo Carvalho de Melo
05267c7eac perf arch: Make the default get_cpuid() return compatible error
Some of the functions calling get_cpuid() propagate back the error it
returns, and all are using errno (positive) values, make the weak
default get_cpuid() function return ENOSYS to be consistent and to allow
checking if this is an arch not providing this function or if a provided
one is having trouble getting the cpuid, to decide if the warning should
be provided to the user or just a debug message should be emitted.

Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: John Garry <john.garry@huawei.com> # arm64
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Will Deacon <will@kernel.org>
Link: https://lkml.kernel.org/n/tip-lxwjr0cd2eggzx04a780ffrv@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-12-11 12:25:14 -03:00
Arnaldo Carvalho de Melo
b444268801 tools headers kvm: Sync linux/kvm.h with the kernel sources
To pick up the changes from:

  22945688ac ("KVM: PPC: Book3S HV: Support reset of secure guest")

No tools changes are caused by this, as the only defines so far used
from these files are for syscall arg pretty printing are:

  $ grep KVM tools/perf/trace/beauty/*.sh
  tools/perf/trace/beauty/kvm_ioctl.sh:regex='^#[[:space:]]*define[[:space:]]+KVM_(\w+)[[:space:]]+_IO[RW]*\([[:space:]]*KVMIO[[:space:]]*,[[:space:]]*(0x[[:xdigit:]]+).*'
  $

This addresses these tools/perf build warnings:

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

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Bharata B Rao <bharata@linux.ibm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@ozlabs.org>
Link: https://lkml.kernel.org/n/tip-bdbe4x02johhul05a03o27zj@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-12-11 10:08:35 -03:00
Arnaldo Carvalho de Melo
761bfc33dd Merge remote-tracking branch 'torvalds/master' into perf/urgent
To pick up BPF fixes to allow a clean 'make -C tools/perf build-test':

  7c3977d1e8 libbpf: Fix sym->st_value print on 32-bit arches
  1fd450f992 libbpf: Fix up generation of bpf_helper_defs.h

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-12-11 09:58:16 -03:00
Heidi Fahim
70efb58bbb kunit: testing kunit: Bug fix in test_run_timeout function
Assert in test_run_timeout was not updated with the build_dir argument
and caused the following error:
AssertionError: Expected call: run_kernel(timeout=3453)
Actual call: run_kernel(build_dir=None, timeout=3453)

Needed to update kunit_tool_test to reflect this fix
https://lkml.org/lkml/2019/9/6/351

Signed-off-by: Heidi Fahim <heidifahim@google.com>
Reviewed-by: SeongJae Park <sjpark@amazon.de>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Tested-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2019-12-09 11:20:36 -07:00
Masami Hiramatsu
8ef1ec0ca3 selftests: safesetid: Fix Makefile to set correct test program
Fix Makefile to set safesetid-test.sh to TEST_PROGS instead
of non existing run_tests.sh.

Without this fix, I got following error.
  ----
  TAP version 13
  1..1
  # selftests: safesetid: run_tests.sh
  # Warning: file run_tests.sh is missing!
  not ok 1 selftests: safesetid: run_tests.sh
  ----

Fixes: c67e8ec03f ("LSM: SafeSetID: add selftest")
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2019-12-09 10:53:04 -07:00
Masami Hiramatsu
295c4e21cf selftests: safesetid: Check the return value of setuid/setgid
Check the return value of setuid() and setgid().
This fixes the following warnings and improves test result.

safesetid-test.c: In function ‘main’:
safesetid-test.c:294:2: warning: ignoring return value of ‘setuid’, declared with attribute warn_unused_result [-Wunused-result]
  setuid(NO_POLICY_USER);
  ^~~~~~~~~~~~~~~~~~~~~~
safesetid-test.c:295:2: warning: ignoring return value of ‘setgid’, declared with attribute warn_unused_result [-Wunused-result]
  setgid(NO_POLICY_USER);
  ^~~~~~~~~~~~~~~~~~~~~~
safesetid-test.c:309:2: warning: ignoring return value of ‘setuid’, declared with attribute warn_unused_result [-Wunused-result]
  setuid(RESTRICTED_PARENT);
  ^~~~~~~~~~~~~~~~~~~~~~~~~
safesetid-test.c:310:2: warning: ignoring return value of ‘setgid’, declared with attribute warn_unused_result [-Wunused-result]
  setgid(RESTRICTED_PARENT);
  ^~~~~~~~~~~~~~~~~~~~~~~~~
safesetid-test.c: In function ‘test_setuid’:
safesetid-test.c:216:3: warning: ignoring return value of ‘setuid’, declared with attribute warn_unused_result [-Wunused-result]
   setuid(child_uid);
   ^~~~~~~~~~~~~~~~~

Fixes: c67e8ec03f ("LSM: SafeSetID: add selftest")
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2019-12-09 10:53:04 -07:00
Masami Hiramatsu
be12252212 selftests: safesetid: Move link library to LDLIBS
Move -lcap to LDLIBS from CFLAGS because it is a library
to be linked.

Without this, safesetid failed to build with link error
as below.

----
/usr/bin/ld: /tmp/ccL8rZHT.o: in function `drop_caps':
safesetid-test.c:(.text+0xe7): undefined reference to `cap_get_proc'
/usr/bin/ld: safesetid-test.c:(.text+0x107): undefined reference to `cap_set_flag'
/usr/bin/ld: safesetid-test.c:(.text+0x10f): undefined reference to `cap_set_proc'
/usr/bin/ld: safesetid-test.c:(.text+0x117): undefined reference to `cap_free'
/usr/bin/ld: safesetid-test.c:(.text+0x136): undefined reference to `cap_clear'
collect2: error: ld returned 1 exit status
----

Fixes: c67e8ec03f ("LSM: SafeSetID: add selftest")
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2019-12-09 10:53:04 -07:00
Masami Hiramatsu
5cc6c8d4a9 selftests/ftrace: Fix multiple kprobe testcase
Fix multiple kprobe event testcase to work it correctly.
There are 2 bugfixes.
 - Since `wc -l FILE` returns not only line number but also
   FILE filename, following "if" statement always failed.
   Fix this bug by replacing it with 'cat FILE | wc -l'
 - Since "while do-done loop" block with pipeline becomes a
   subshell, $N local variable is not update outside of
   the loop.
   Fix this bug by using actual target number (256) instead
   of $N.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2019-12-09 10:53:04 -07:00
Masami Hiramatsu
ba1b9c5048 selftests/ftrace: Do not to use absolute debugfs path
Use relative path to trigger file instead of absolute debugfs path,
because if the user uses tracefs instead of debugfs, it can be
mounted at /sys/kernel/tracing.
Anyway, since the ftracetest is designed to be run at the tracing
directory, user doesn't need to use absolute path.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2019-12-09 10:53:04 -07:00
Masami Hiramatsu
25deae098e selftests/ftrace: Fix ftrace test cases to check unsupported
Since dynamic function tracer can be disabled, set_ftrace_filter
can be disappeared. Test cases which depends on it, must check
whether the set_ftrace_filter exists or not before testing
and if not, return as unsupported.

Also, if the function tracer itself is disabled, we can not
set "function" to current_tracer. Test cases must check it
before testing, and return as unsupported.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2019-12-09 10:53:04 -07:00
Masami Hiramatsu
fd1baf6ca2 selftests/ftrace: Fix to check the existence of set_ftrace_filter
If we run ftracetest on the kernel with CONFIG_DYNAMIC_FTRACE=n,
there is no set_ftrace_filter and all test cases are failed, because
reset_ftrace_filter() returns an error.
Let's check whether set_ftrace_filter exists in reset_ftrace_filter()
and clean up only set_ftrace_notrace in initialize_ftrace().

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2019-12-09 10:53:04 -07:00
Linus Torvalds
95e6ba5133 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from David Miller:

 1) More jumbo frame fixes in r8169, from Heiner Kallweit.

 2) Fix bpf build in minimal configuration, from Alexei Starovoitov.

 3) Use after free in slcan driver, from Jouni Hogander.

 4) Flower classifier port ranges don't work properly in the HW offload
    case, from Yoshiki Komachi.

 5) Use after free in hns3_nic_maybe_stop_tx(), from Yunsheng Lin.

 6) Out of bounds access in mqprio_dump(), from Vladyslav Tarasiuk.

 7) Fix flow dissection in dsa TX path, from Alexander Lobakin.

 8) Stale syncookie timestampe fixes from Guillaume Nault.

[ Did an evil merge to silence a warning introduced by this pull - Linus ]

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (84 commits)
  r8169: fix rtl_hw_jumbo_disable for RTL8168evl
  net_sched: validate TCA_KIND attribute in tc_chain_tmplt_add()
  r8169: add missing RX enabling for WoL on RTL8125
  vhost/vsock: accept only packets with the right dst_cid
  net: phy: dp83867: fix hfs boot in rgmii mode
  net: ethernet: ti: cpsw: fix extra rx interrupt
  inet: protect against too small mtu values.
  gre: refetch erspan header from skb->data after pskb_may_pull()
  pppoe: remove redundant BUG_ON() check in pppoe_pernet
  tcp: Protect accesses to .ts_recent_stamp with {READ,WRITE}_ONCE()
  tcp: tighten acceptance of ACKs not matching a child socket
  tcp: fix rejected syncookies due to stale timestamps
  lpc_eth: kernel BUG on remove
  tcp: md5: fix potential overestimation of TCP option space
  net: sched: allow indirect blocks to bind to clsact in TC
  net: core: rename indirect block ingress cb function
  net-sysfs: Call dev_hold always in netdev_queue_add_kobject
  net: dsa: fix flow dissection on Tx path
  net/tls: Fix return values to avoid ENOTSUPP
  net: avoid an indirect call in ____sys_recvmsg()
  ...
2019-12-08 13:28:11 -08:00
Valentin Vidic
4a5cdc604b net/tls: Fix return values to avoid ENOTSUPP
ENOTSUPP is not available in userspace, for example:

  setsockopt failed, 524, Unknown error 524

Signed-off-by: Valentin Vidic <vvidic@valentin-vidic.from.hr>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-12-06 20:15:39 -08:00
Yonghong Song
8f9081c925 selftests/bpf: Add a fexit/bpf2bpf test with target bpf prog no callees
The existing fexit_bpf2bpf test covers the target progrm with callees.
This patch added a test for the target program without callees.

Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20191205010607.177904-1-yhs@fb.com
2019-12-04 21:34:42 -08:00
Heiher
f2728fe80c selftests: add epoll selftests
This adds the promised selftest for epoll.  It will verify the wakeups
of epoll.  Including leaf and nested mode, epoll_wait() and poll() and
multi-threads.

Link: http://lkml.kernel.org/r/20191009121518.4027-1-r@hev.cc
Signed-off-by: hev <r@hev.cc>
Reviewed-by: Roman Penyaev <rpenyaev@suse.de>
Cc: Jason Baron <jbaron@akamai.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-12-04 19:44:13 -08:00
Stanislav Fomichev
ef8c84effc selftests/bpf: De-flake test_tcpbpf
It looks like BPF program that handles BPF_SOCK_OPS_STATE_CB state
can race with the bpf_map_lookup_elem("global_map"); I sometimes
see the failures in this test and re-running helps.

Since we know that we expect the callback to be called 3 times (one
time for listener socket, two times for both ends of the connection),
let's export this number and add simple retry logic around that.

Also, let's make EXPECT_EQ() not return on failure, but continue
evaluating all conditions; that should make potential debugging
easier.

With this fix in place I don't observe the flakiness anymore.

Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Cc: Lawrence Brakmo <brakmo@fb.com>
Link: https://lore.kernel.org/bpf/20191204190955.170934-1-sdf@google.com
2019-12-04 18:01:05 -08:00
Stanislav Fomichev
6bf6affe18 selftests/bpf: Bring back c++ include/link test
Commit 5c26f9a783 ("libbpf: Don't use cxx to test_libpf target")
converted existing c++ test to c. We still want to include and
link against libbpf from c++ code, so reinstate this test back,
this time in a form of a selftest with a clear comment about
its purpose.

v2:
* -lelf -> $(LDLIBS) (Andrii Nakryiko)

Fixes: 5c26f9a783 ("libbpf: Don't use cxx to test_libpf target")
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20191202215931.248178-1-sdf@google.com
2019-12-04 17:57:55 -08:00
Stanislav Fomichev
01d434ce98 selftests/bpf: Don't hard-code root cgroup id
Commit 40430452fd ("kernfs: use 64bit inos if ino_t is 64bit") changed
the way cgroup ids are exposed to the userspace. Instead of assuming
fixed root id, let's query it.

Fixes: 40430452fd ("kernfs: use 64bit inos if ino_t is 64bit")
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20191202200143.250793-1-sdf@google.com
2019-12-04 17:56:22 -08:00
Arnaldo Carvalho de Melo
fd9bee5e24 tools headers UAPI: Update tools's copy of drm.h headers
Picking the changes from:

  2093dea3de ("drm/syncobj: extend syncobj query ability v3")

Which doesn't affect tooling, just silences this perf build warning:

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

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Chunming Zhou <david1.zhou@amd.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-t1xqmjffo4rxdw395dsnu34j@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-12-04 16:22:38 -03:00
Arnaldo Carvalho de Melo
0b3fca6ad3 tools headers UAPI: Sync drm/i915_drm.h with the kernel sources
To pick the change in:

  a0e047156c ("drm/i915/gem: Make context persistence optional")
  9cd20ef780 ("drm/i915/perf: allow holding preemption on filtered ctx")
  7831e9a965 ("drm/i915/perf: Allow dynamic reconfiguration of the OA stream")
  4f6ccc74a8 ("drm/i915: add support for perf configuration queries")
  b8d49f28aa ("drm/i915/perf: introduce a versioning of the i915-perf uapi")
  601734f7aa ("drm/i915/tgl: s/ss/eu fuse reading support")

That don't result in any changes in tooling, just silences this perf
build warning:

  Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs from latest version at 'include/uapi/drm/i915_drm.h'
  diff -u tools/include/uapi/drm/i915_drm.h include/uapi/drm/i915_drm.h

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-qwzjrgwj55y3g6rjdf9spkpr@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-12-04 16:22:28 -03:00
Adrian Hunter
29f6eeca0e perf inject: Fix processing of ID index for injected instruction tracing
The ID index event is used when decoding, but can result in the
following error:

 $ perf record --aux-sample -e '{intel_pt//,branch-misses}:u' ls
 $ perf inject -i perf.data -o perf.data.inj --itrace=be
 $ perf script -i perf.data.inj
 0x1020 [0x410]: failed to process type: 69 [No such file or directory]

Fix by having 'perf inject' drop the ID index event.

Fixes: c0a6de06c4 ("perf record: Add support for AUX area sampling")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lore.kernel.org/lkml/20191204120800.8138-1-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-12-04 12:39:53 -03:00
Ravi Bangoria
bb30acae4c perf report: Bail out --mem-mode if mem info is not available
If perf.data is recorded without -d, don't allow user to use --mem-mode
with 'perf report'. symbol_daddr and phys_daddr can be recorded
separately and may be present in the perf.data but at the report time
they are associated with mem-mode fields and thus this restriction
applies to them as well.

Before:
  $ perf record ls
  $ perf report --mem-mode --stdio
  # Overhead  Local Weight  Memory access  Symbol
  # ........  ............  .............  .......................
      55.56%  0             N/A            [k] 0xffffffff81a00ae7

After:
  $ perf report --mem-mode --stdio
  Error:
  Selected --mem-mode but no mem data. Did you call perf record without -d?

Suggested-by: Arnaldo Carvalho de Melo <acme@kernel.org>
Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/lkml/20191114132213.5419-4-ravi.bangoria@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-12-04 12:34:02 -03:00
Ravi Bangoria
aa6b3c9923 perf report: Make -F more strict like -s
Currently -F allows branch-mode / mem-mode fields with -F even
when perf report is not running in that mode. Don't allow that.

Suggested-by: Arnaldo Carvalho de Melo <acme@kernel.org>
Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/lkml/20191114132213.5419-3-ravi.bangoria@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-12-04 12:32:40 -03:00
Ravi Bangoria
ae87405fb5 perf report/top TUI: Replace pr_err() with ui__error()
pr_err() in TUI mode does not print anyting on the screen and just
quits.

Replace such pr_err() with ui__error().

Before:

  $ perf report -s +
  $

After:

  $ perf report -s +

    ┌─Error:────────────────┐
    │Invalid --sort key: `+'│
    │                       │
    │Press any key...       │
    └───────────────────────┘

Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/lkml/20191114132213.5419-2-ravi.bangoria@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-12-04 12:27:14 -03:00
Ingo Molnar
9f58c93efd perf/core improvements and fixes:
perf report/top:
 
   - Fix segfault due to missing initialization of recently introduced
     struct map_symbol 'maps' field in append_inlines(), when running
     with DWARF callchains.
 
 perf stat:
 
   Andi Kleen:
 
   - Affinity based optimizations for sessions with many events in
     machines with large core counts, avoiding excessive number of IPIs.
 
 libtraceevent:
 
   - Sudip Mukherjee:
 
   - Fix installation with O=.
 
   - Copy pkg-config file to output folder when using O=.
 
 perf bench:
 
   Arnaldo Carvalho de Melo:
 
   - Update the copies of x86's mem{cpy,set}_64.S, and because that
     now uses new stuff in linux/linkage.h, update that header too, which
     made the minimal clang version to build perf to be 3.5, as
     3.4 as found in some of the container images used to test build perf
     can't grok STT_FUNC as a token in .type lines.
 
 ABI headers:
 
   Arnaldo Carvalho de Melo:
 
   - Sync x86's msr-index.h copy with the kernel sources, resulting
     in new MSRs to be usable in filter expressions in 'perf trace',
     such as IA32_TSX_CTRL.
 
   - Sync linux/fscrypt.h, linux/stat.h, sched.h and the kvm headers.
 
 perf trace:
 
   Arnaldo Carvalho de Melo:
 
   - Add CLEAR_SIGHAND support for clone's flags arg
 
 perf kvm:
 
   Arnaldo Carvalho de Melo:
 
   - Clarify the 'perf kvm' -i and -o command line options
 
 perf test:
 
   Ian Rogers:
 
   - Move test functionality in to a 'perf test' entry.
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-core-for-mingo-5.5-20191203' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent

Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:

perf report/top:

  - Fix segfault due to missing initialization of recently introduced
    struct map_symbol 'maps' field in append_inlines(), when running
    with DWARF callchains.

perf stat:

  Andi Kleen:

  - Affinity based optimizations for sessions with many events in
    machines with large core counts, avoiding excessive number of IPIs.

libtraceevent:

  - Sudip Mukherjee:

  - Fix installation with O=.

  - Copy pkg-config file to output folder when using O=.

perf bench:

  Arnaldo Carvalho de Melo:

  - Update the copies of x86's mem{cpy,set}_64.S, and because that
    now uses new stuff in linux/linkage.h, update that header too, which
    made the minimal clang version to build perf to be 3.5, as
    3.4 as found in some of the container images used to test build perf
    can't grok STT_FUNC as a token in .type lines.

ABI headers:

  Arnaldo Carvalho de Melo:

  - Sync x86's msr-index.h copy with the kernel sources, resulting
    in new MSRs to be usable in filter expressions in 'perf trace',
    such as IA32_TSX_CTRL.

  - Sync linux/fscrypt.h, linux/stat.h, sched.h and the kvm headers.

perf trace:

  Arnaldo Carvalho de Melo:

  - Add CLEAR_SIGHAND support for clone's flags arg

perf kvm:

  Arnaldo Carvalho de Melo:

  - Clarify the 'perf kvm' -i and -o command line options

perf test:

  Ian Rogers:

  - Move test functionality in to a 'perf test' entry.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-12-04 08:49:52 +01:00
Linus Torvalds
c3bed3b20e pci-v5.5-changes
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Merge tag 'pci-v5.5-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:
 "Enumeration:

   - Warn if a host bridge has no NUMA info (Yunsheng Lin)

   - Add PCI_STD_NUM_BARS for the number of standard BARs (Denis
     Efremov)

  Resource management:

   - Fix boot-time Embedded Controller GPE storm caused by incorrect
     resource assignment after ACPI Bus Check Notification (Mika
     Westerberg)

   - Protect pci_reassign_bridge_resources() against concurrent
     addition/removal (Benjamin Herrenschmidt)

   - Fix bridge dma_ranges resource list cleanup (Rob Herring)

   - Add "pci=hpmmiosize" and "pci=hpmmioprefsize" parameters to control
     the MMIO and prefetchable MMIO window sizes of hotplug bridges
     independently (Nicholas Johnson)

   - Fix MMIO/MMIO_PREF window assignment that assigned more space than
     desired (Nicholas Johnson)

   - Only enforce bus numbers from bridge EA if the bridge has EA
     devices downstream (Subbaraya Sundeep)

   - Consolidate DT "dma-ranges" parsing and convert all host drivers to
     use shared parsing (Rob Herring)

  Error reporting:

   - Restore AER capability after resume (Mayurkumar Patel)

   - Add PoisonTLPBlocked AER counter (Rajat Jain)

   - Use for_each_set_bit() to simplify AER code (Andy Shevchenko)

   - Fix AER kernel-doc (Andy Shevchenko)

   - Add "pcie_ports=dpc-native" parameter to allow native use of DPC
     even if platform didn't grant control over AER (Olof Johansson)

  Hotplug:

   - Avoid returning prematurely from sysfs requests to enable or
     disable a PCIe hotplug slot (Lukas Wunner)

   - Don't disable interrupts twice when suspending hotplug ports (Mika
     Westerberg)

   - Fix deadlocks when PCIe ports are hot-removed while suspended (Mika
     Westerberg)

  Power management:

   - Remove unnecessary ASPM locking (Bjorn Helgaas)

   - Add support for disabling L1 PM Substates (Heiner Kallweit)

   - Allow re-enabling Clock PM after it has been disabled (Heiner
     Kallweit)

   - Add sysfs attributes for controlling ASPM link states (Heiner
     Kallweit)

   - Remove CONFIG_PCIEASPM_DEBUG, including "link_state" and "clk_ctl"
     sysfs files (Heiner Kallweit)

   - Avoid AMD FCH XHCI USB PME# from D0 defect that prevents wakeup on
     USB 2.0 or 1.1 connect events (Kai-Heng Feng)

   - Move power state check out of pci_msi_supported() (Bjorn Helgaas)

   - Fix incorrect MSI-X masking on resume and revert related nvme quirk
     for Kingston NVME SSD running FW E8FK11.T (Jian-Hong Pan)

   - Always return devices to D0 when thawing to fix hibernation with
     drivers like mlx4 that used legacy power management (previously we
     only did it for drivers with new power management ops) (Dexuan Cui)

   - Clear PCIe PME Status even for legacy power management (Bjorn
     Helgaas)

   - Fix PCI PM documentation errors (Bjorn Helgaas)

   - Use dev_printk() for more power management messages (Bjorn Helgaas)

   - Apply D2 delay as milliseconds, not microseconds (Bjorn Helgaas)

   - Convert xen-platform from legacy to generic power management (Bjorn
     Helgaas)

   - Removed unused .resume_early() and .suspend_late() legacy power
     management hooks (Bjorn Helgaas)

   - Rearrange power management code for clarity (Rafael J. Wysocki)

   - Decode power states more clearly ("4" or "D4" really refers to
     "D3cold") (Bjorn Helgaas)

   - Notice when reading PM Control register returns an error (~0)
     instead of interpreting it as being in D3hot (Bjorn Helgaas)

   - Add missing link delays required by the PCIe spec (Mika Westerberg)

  Virtualization:

   - Move pci_prg_resp_pasid_required() to CONFIG_PCI_PRI (Bjorn
     Helgaas)

   - Allow VFs to use PRI (the PF PRI is shared by the VFs, but the code
     previously didn't recognize that) (Kuppuswamy Sathyanarayanan)

   - Allow VFs to use PASID (the PF PASID capability is shared by the
     VFs, but the code previously didn't recognize that) (Kuppuswamy
     Sathyanarayanan)

   - Disconnect PF and VF ATS enablement, since ATS in PFs and
     associated VFs can be enabled independently (Kuppuswamy
     Sathyanarayanan)

   - Cache PRI and PASID capability offsets (Kuppuswamy Sathyanarayanan)

   - Cache the PRI PRG Response PASID Required bit (Bjorn Helgaas)

   - Consolidate ATS declarations in linux/pci-ats.h (Krzysztof
     Wilczynski)

   - Remove unused PRI and PASID stubs (Bjorn Helgaas)

   - Removed unnecessary EXPORT_SYMBOL_GPL() from ATS, PRI, and PASID
     interfaces that are only used by built-in IOMMU drivers (Bjorn
     Helgaas)

   - Hide PRI and PASID state restoration functions used only inside the
     PCI core (Bjorn Helgaas)

   - Add a DMA alias quirk for the Intel VCA NTB (Slawomir Pawlowski)

   - Serialize sysfs sriov_numvfs reads vs writes (Pierre Crégut)

   - Update Cavium ACS quirk for ThunderX2 and ThunderX3 (George
     Cherian)

   - Fix the UPDCR register address in the Intel ACS quirk (Steffen
     Liebergeld)

   - Unify ACS quirk implementations (Bjorn Helgaas)

  Amlogic Meson host bridge driver:

   - Fix meson PERST# GPIO polarity problem (Remi Pommarel)

   - Add DT bindings for Amlogic Meson G12A (Neil Armstrong)

   - Fix meson clock names to match DT bindings (Neil Armstrong)

   - Add meson support for Amlogic G12A SoC with separate shared PHY
     (Neil Armstrong)

   - Add meson extended PCIe PHY functions for Amlogic G12A USB3+PCIe
     combo PHY (Neil Armstrong)

   - Add arm64 DT for Amlogic G12A PCIe controller node (Neil Armstrong)

   - Add commented-out description of VIM3 USB3/PCIe mux in arm64 DT
     (Neil Armstrong)

  Broadcom iProc host bridge driver:

   - Invalidate iProc PAXB address mapping before programming it
     (Abhishek Shah)

   - Fix iproc-msi and mvebu __iomem annotations (Ben Dooks)

  Cadence host bridge driver:

   - Refactor Cadence PCIe host controller to use as a library for both
     host and endpoint (Tom Joseph)

  Freescale Layerscape host bridge driver:

   - Add layerscape LS1028a support (Xiaowei Bao)

  Intel VMD host bridge driver:

   - Add VMD bus 224-255 restriction decode (Jon Derrick)

   - Add VMD 8086:9A0B device ID (Jon Derrick)

   - Remove Keith from VMD maintainer list (Keith Busch)

  Marvell ARMADA 3700 / Aardvark host bridge driver:

   - Use LTSSM state to build link training flag since Aardvark doesn't
     implement the Link Training bit (Remi Pommarel)

   - Delay before training Aardvark link in case PERST# was asserted
     before the driver probe (Remi Pommarel)

   - Fix Aardvark issues with Root Control reads and writes (Remi
     Pommarel)

   - Don't rely on jiffies in Aardvark config access path since
     interrupts may be disabled (Remi Pommarel)

   - Fix Aardvark big-endian support (Grzegorz Jaszczyk)

  Marvell ARMADA 370 / XP host bridge driver:

   - Make mvebu_pci_bridge_emul_ops static (Ben Dooks)

  Microsoft Hyper-V host bridge driver:

   - Add hibernation support for Hyper-V virtual PCI devices (Dexuan
     Cui)

   - Track Hyper-V pci_protocol_version per-hbus, not globally (Dexuan
     Cui)

   - Avoid kmemleak false positive on hv hbus buffer (Dexuan Cui)

  Mobiveil host bridge driver:

   - Change mobiveil csr_read()/write() function names that conflict
     with riscv arch functions (Kefeng Wang)

  NVIDIA Tegra host bridge driver:

   - Fix Tegra CLKREQ dependency programming (Vidya Sagar)

  Renesas R-Car host bridge driver:

   - Remove unnecessary header include from rcar (Andrew Murray)

   - Tighten register index checking for rcar inbound range programming
     (Marek Vasut)

   - Fix rcar inbound range alignment calculation to improve packing of
     multiple entries (Marek Vasut)

   - Update rcar MACCTLR setting to match documentation (Yoshihiro
     Shimoda)

   - Clear bit 0 of MACCTLR before PCIETCTLR.CFINIT per manual
     (Yoshihiro Shimoda)

   - Add Marek Vasut and Yoshihiro Shimoda as R-Car maintainers (Simon
     Horman)

  Rockchip host bridge driver:

   - Make rockchip 0V9 and 1V8 power regulators non-optional (Robin
     Murphy)

  Socionext UniPhier host bridge driver:

   - Set uniphier to host (RC) mode always (Kunihiko Hayashi)

  Endpoint drivers:

   - Fix endpoint driver sign extension problem when shifting page
     number to phys_addr_t (Alan Mikhak)

  Misc:

   - Add NumaChip SPDX header (Krzysztof Wilczynski)

   - Replace EXTRA_CFLAGS with ccflags-y (Krzysztof Wilczynski)

   - Remove unused includes (Krzysztof Wilczynski)

   - Removed unused sysfs attribute groups (Ben Dooks)

   - Remove PTM and ASPM dependencies on PCIEPORTBUS (Bjorn Helgaas)

   - Add PCIe Link Control 2 register field definitions to replace magic
     numbers in AMDGPU and Radeon CIK/SI (Bjorn Helgaas)

   - Fix incorrect Link Control 2 Transmit Margin usage in AMDGPU and
     Radeon CIK/SI PCIe Gen3 link training (Bjorn Helgaas)

   - Use pcie_capability_read_word() instead of pci_read_config_word()
     in AMDGPU and Radeon CIK/SI (Frederick Lawler)

   - Remove unused pci_irq_get_node() Greg Kroah-Hartman)

   - Make asm/msi.h mandatory and simplify PCI_MSI_IRQ_DOMAIN Kconfig
     (Palmer Dabbelt, Michal Simek)

   - Read all 64 bits of Switchtec part_event_bitmap (Logan Gunthorpe)

   - Fix erroneous intel-iommu dependency on CONFIG_AMD_IOMMU (Bjorn
     Helgaas)

   - Fix bridge emulation big-endian support (Grzegorz Jaszczyk)

   - Fix dwc find_next_bit() usage (Niklas Cassel)

   - Fix pcitest.c fd leak (Hewenliang)

   - Fix typos and comments (Bjorn Helgaas)

   - Fix Kconfig whitespace errors (Krzysztof Kozlowski)"

* tag 'pci-v5.5-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (160 commits)
  PCI: Remove PCI_MSI_IRQ_DOMAIN architecture whitelist
  asm-generic: Make msi.h a mandatory include/asm header
  Revert "nvme: Add quirk for Kingston NVME SSD running FW E8FK11.T"
  PCI/MSI: Fix incorrect MSI-X masking on resume
  PCI/MSI: Move power state check out of pci_msi_supported()
  PCI/MSI: Remove unused pci_irq_get_node()
  PCI: hv: Avoid a kmemleak false positive caused by the hbus buffer
  PCI: hv: Change pci_protocol_version to per-hbus
  PCI: hv: Add hibernation support
  PCI: hv: Reorganize the code in preparation of hibernation
  MAINTAINERS: Remove Keith from VMD maintainer
  PCI/ASPM: Remove PCIEASPM_DEBUG Kconfig option and related code
  PCI/ASPM: Add sysfs attributes for controlling ASPM link states
  PCI: Fix indentation
  drm/radeon: Prefer pcie_capability_read_word()
  drm/radeon: Replace numbers with PCI_EXP_LNKCTL2 definitions
  drm/radeon: Correct Transmit Margin masks
  drm/amdgpu: Prefer pcie_capability_read_word()
  PCI: uniphier: Set mode register to host mode
  drm/amdgpu: Replace numbers with PCI_EXP_LNKCTL2 definitions
  ...
2019-12-03 13:58:22 -08:00
Linus Torvalds
e30dbe50dc linux-kselftest-5.5-rc1-fixes2
This second Kselftest fixes update for Linux 5.5-rc1 consists of
 an urgent revert to fix regression in CI coverage.
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Merge tag 'linux-kselftest-5.5-rc1-fixes2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull more kselftest fixes from Shuah Khan:
 "This second Kselftest fixes update for Linux 5.5-rc1 consists of an
  urgent revert to fix regression in CI coverage"

* tag 'linux-kselftest-5.5-rc1-fixes2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  Revert "selftests: Fix O= and KBUILD_OUTPUT handling for relative paths"
2019-12-02 17:29:25 -08:00
Sudip Mukherjee
15b3904f8e libtraceevent: Copy pkg-config file to output folder when using O=
When we use 'O=' with make to build libtraceevent in a separate folder
it still copies 'libtraceevent.pc' to its source folder. Modify the
Makefile so that it uses the output folder to copy the pkg-config file
and install from there.

Signed-off-by: Sudipm Mukherjee <sudipm.mukherjee@gmail.com>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: linux-trace-devel@vger.kernel.org
Link: http://lore.kernel.org/lkml/20191115113610.21493-2-sudipm.mukherjee@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-12-02 21:58:20 -03:00
Sudip Mukherjee
587db8ebda libtraceevent: Fix lib installation with O=
When we use 'O=' with make to build libtraceevent in a separate folder
it fails to install libtraceevent.a and libtraceevent.so.1.1.0 with the
error:

  INSTALL  /home/sudip/linux/obj-trace/libtraceevent.a
  INSTALL  /home/sudip/linux/obj-trace/libtraceevent.so.1.1.0

  cp: cannot stat 'libtraceevent.a': No such file or directory
  Makefile:225: recipe for target 'install_lib' failed
  make: *** [install_lib] Error 1

I used the command:

  make O=../../../obj-trace DESTDIR=~/test prefix==/usr  install

It turns out libtraceevent Makefile, even though it builds in a separate
folder, searches for libtraceevent.a and libtraceevent.so.1.1.0 in its
source folder.

So, add the 'OUTPUT' prefix to the source path so that 'make' looks for
the files in the correct place.

Signed-off-by: Sudipm Mukherjee <sudipm.mukherjee@gmail.com>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: linux-trace-devel@vger.kernel.org
Link: http://lore.kernel.org/lkml/20191115113610.21493-1-sudipm.mukherjee@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-12-02 21:58:20 -03:00
David S. Miller
734c7022ad Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Daniel Borkmann says:

====================
pull-request: bpf 2019-12-02

The following pull-request contains BPF updates for your *net* tree.

We've added 10 non-merge commits during the last 6 day(s) which contain
a total of 10 files changed, 60 insertions(+), 51 deletions(-).

The main changes are:

1) Fix vmlinux BTF generation for binutils pre v2.25, from Stanislav Fomichev.

2) Fix libbpf global variable relocation to take symbol's st_value offset
   into account, from Andrii Nakryiko.

3) Fix libbpf build on powerpc where check_abi target fails due to different
   readelf output format, from Aurelien Jarno.

4) Don't set BPF insns RO for the case when they are JITed in order to avoid
   fragmenting the direct map, from Daniel Borkmann.

5) Fix static checker warning in btf_distill_func_proto() as well as a build
   error due to empty enum when BPF is compiled out, from Alexei Starovoitov.

6) Fix up generation of bpf_helper_defs.h for perf, from Arnaldo Carvalho de Melo.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-12-02 10:50:29 -08:00
Arnaldo Carvalho de Melo
9974406884 perf kvm: Clarify the 'perf kvm' -i and -o command line options
The 'perf kvm' subcommand has options that it in turn passes to other
perf subcommands such as 'report' and 'record', particularly -i and -o
end up setting the same variable that will then be used for 'record's -o
and report '-i', which ends up being confusing, leading some to think
that both -i and -o can be used with 'report'.

Improve the man page to state that -i is used with the post-processing
subcommands while -o is used just with 'record' and that to save the
output of 'report' one should simply redirect its output to a file.

Noticed while reading the https://www.linux-kvm.org/page/Perf_events
page.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Steve Dickson <steved@redhat.com>
Cc: William Cohen <wcohen@redhat.com>
Link: https://lkml.kernel.org/n/tip-tclbttvmgtm525fvmh85f7d9@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-12-02 15:38:59 -03:00
Arnaldo Carvalho de Melo
a717ab38a5 tools arch x86: Sync asm/cpufeatures.h with the kernel sources
To pick up the changes from:

  a25bbc2644 ("Merge branches 'x86-cpu-for-linus' and 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip")
  db4d30fbb7 ("x86/bugs: Add ITLB_MULTIHIT bug infrastructure")
  1b42f01741 ("x86/speculation/taa: Add mitigation for TSX Async Abort")
  9d40b85bb4 ("x86/cpufeatures: Add feature bit RDPRU on AMD")

These don't cause any changes in tooling, just silences this perf build
warning:

  Warning: Kernel ABI header at 'tools/arch/x86/include/asm/cpufeatures.h' differs from latest version at 'arch/x86/include/asm/cpufeatures.h'
  diff -u tools/arch/x86/include/asm/cpufeatures.h arch/x86/include/asm/cpufeatures.h

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Babu Moger <babu.moger@amd.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vineela Tummalapalli <vineela.tummalapalli@intel.com>
Link: https://lkml.kernel.org/n/tip-yufg9yt2nbkh45r9xvxnnscq@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-12-02 15:20:05 -03:00
Arnaldo Carvalho de Melo
f6661125ff perf beauty: Add CLEAR_SIGHAND support for clone's flags arg
Add support for the recently added CLONE_CLEAR_SIGHAND flag.

This takes advantage of the copy of the uapi/linux/sched.h we have in
tools/include, which allows us to build tools/perf in older systems and
have the binary support printing that flag whenever that system gets its
kernel updated to one where this feature is present.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Adrian Reber <areber@redhat.com>
Cc: Christian Brauner <christian.brauner@ubuntu.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org
Link: https://lkml.kernel.org/n/tip-1vnz497ubtu5oz16ygdcul0e@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-12-02 15:19:52 -03:00
Arnaldo Carvalho de Melo
2603a4903b tools headers UAPI: Sync sched.h with the kernel
To get the changes in:

  0acefef584 ("Merge tag 'threads-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux")
  49cb2fc42c ("fork: extend clone3() to support setting a PID")
  fa729c4df5 ("clone3: validate stack arguments")
  b612e5df45 ("clone3: add CLONE_CLEAR_SIGHAND")

This file gets rebuilt, but no changes ensues:

   CC       /tmp/build/perf/trace/beauty/clone.o

This addresses this perf build warning:

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

The CLONE_CLEAR_SIGHAND one will be used in tools/perf/trace/beauty/clone.c
in a followup patch to show that string when this bit is set in the
syscall arg. Keeping a copy of this file allows us to build this in
older systems and have the binary support printing that flag whenever
that system gets its kernel updated to one where this feature is
present.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Adrian Reber <areber@redhat.com>
Cc: Christian Brauner <christian.brauner@ubuntu.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-nprqsvvzbhzoy64cbvos6c5b@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-12-02 12:56:39 -03:00
Arnaldo Carvalho de Melo
1fc3d0ee24 tools headers kvm: Sync kvm headers with the kernel sources
To pick up the changes from:

  14edff8831 Merge tag 'kvmarm-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
  a4b28f5c67 Merge remote-tracking branch 'kvmarm/kvm-arm64/stolen-time' into kvmarm-master/next
  58772e9a3d ("KVM: arm64: Provide VCPU attributes for stolen time")
  da345174ce ("KVM: arm/arm64: Allow user injection of external data aborts")
  c726200dd1 ("KVM: arm/arm64: Allow reporting non-ISV data aborts to userspace")
  efe5ddcae4 ("KVM: PPC: Book3S HV: XIVE: Allow userspace to set the # of VPs")

No tools changes are caused by this, as the only defines so far used
from these files are for syscall arg pretty printing are:

  $ grep KVM tools/perf/trace/beauty/*.sh
  tools/perf/trace/beauty/kvm_ioctl.sh:regex='^#[[:space:]]*define[[:space:]]+KVM_(\w+)[[:space:]]+_IO[RW]*\([[:space:]]*KVMIO[[:space:]]*,[[:space:]]*(0x[[:xdigit:]]+).*'
  $

Some are also include by:

  tools/perf/arch/x86/util/kvm-stat.c
  tools/perf/arch/powerpc/util/kvm-stat.c

This addresses these tools/perf build warnings:

  Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h'
  diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h
  Warning: Kernel ABI header at 'tools/arch/powerpc/include/uapi/asm/kvm.h' differs from latest version at 'arch/powerpc/include/uapi/asm/kvm.h'
  diff -u tools/arch/powerpc/include/uapi/asm/kvm.h arch/powerpc/include/uapi/asm/kvm.h
  Warning: Kernel ABI header at 'tools/arch/arm/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm/include/uapi/asm/kvm.h'
  diff -u tools/arch/arm/include/uapi/asm/kvm.h arch/arm/include/uapi/asm/kvm.h
  Warning: Kernel ABI header at 'tools/arch/arm64/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm64/include/uapi/asm/kvm.h'
  diff -u tools/arch/arm64/include/uapi/asm/kvm.h arch/arm64/include/uapi/asm/kvm.h

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Christoffer Dall <christoffer.dall@arm.com>
Cc: Fabiano Rosas <farosas@linux.ibm.com>
Cc: Greg Kurz <groug@kaod.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@ozlabs.org>
Cc: Steven Price <steven.price@arm.com>
Link: https://lkml.kernel.org/n/tip-qrjdudhq25mk5bfnhveofbm4@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-12-02 12:54:13 -03:00
Arnaldo Carvalho de Melo
c66f2566db tools headers uapi: Sync linux/stat.h with the kernel sources
To pick the changes from:

  3ad2522c64 ("statx: define STATX_ATTR_VERITY")

That don't trigger any changes in tooling.

This silences this perf build warning:

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

At some point we wi'll beautify structs passed in pointers to syscalls
and then we'll need to have tables for these defines, for now update the
file to silence the warning as this file is used for doing this type of
number -> string translations for other defines found in these file.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Eric Biggers <ebiggers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-thcy60dpry5qrpn7nmc58bwg@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-12-02 12:24:52 -03:00