Commit Graph

19283 Commits

Author SHA1 Message Date
Santosh Sivaraj
6f62a8223e seltests/powerpc: Add a selftest for memcpy_mcsafe
Appropriate self tests for memcpy_mcsafe

Suggested-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Santosh Sivaraj <santosh@fossix.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190903214359.23887-2-santosh@fossix.org
2019-09-12 09:27:00 +10:00
Paolo Bonzini
17a81bdb4e Merge tag 'kvm-s390-next-5.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD
* More selftests
* Improved KVM_S390_MEM_OP ioctl input checking
* Add kvm_valid_regs and kvm_dirty_regs invalid bit checking
2019-09-11 18:06:15 +02:00
Tejun Heo
7c1ee704a1 iocost_monitor: Report debt
Report debt and rename del_ms row to delay for consistency.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-09-10 12:31:39 -06:00
Tejun Heo
b06f2d35c6 iocost_monitor: Report more info with higher accuracy
When outputting json:

* Don't truncate numbers.

* Report address of iocg to ease drilling down further.

When outputting table:

* Use math.ceil() for delay_ms so that small delays don't read as 0.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-09-10 12:31:39 -06:00
Tejun Heo
e742bd5cb5 iocost_monitor: Always use strings for json values
Json has limited accuracy for numbers and can silently truncate 64bit
values, which can be extremely confusing.  Let's consistently use
string encapsulated values for json output.

While at it, convert an unnecesary f-string to str().

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-09-10 12:31:39 -06:00
Paolo Bonzini
32d1d15c52 Merge tag 'kvmarm-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm updates for 5.4

- New ITS translation cache
- Allow up to 512 CPUs to be supported with GICv3 (for real this time)
- Now call kvm_arch_vcpu_blocking early in the blocking sequence
- Tidy-up device mappings in S2 when DIC is available
- Clean icache invalidation on VMID rollover
- General cleanup
2019-09-10 19:09:14 +02:00
Paolo Bonzini
8146856b0a Merge tag 'kvm-ppc-next-5.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc into HEAD
PPC KVM update for 5.4

- Some prep for extending the uses of the rmap array
- Various minor fixes
- Commits from the powerpc topic/ppc-kvm branch, which fix a problem
  with interrupts arriving after free_irq, causing host hangs and crashes.
2019-09-10 16:51:17 +02:00
Jiri Olsa
4256d43493 libperf: Adopt perf_cpu_map__max() function
From 'perf stat', so that it can be used from multiple places.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20190902121255.536-2-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-09-10 14:33:32 +01:00
Jiri Olsa
227cb12985 libperf: Add missing event.h file to install rule
So that this development header is properly installed and can be found
by tools linking with libperf.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20190901124822.10132-5-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-09-10 14:33:32 +01:00
Jiri Olsa
9eab951f34 perf tests: Add libperf automated test for 'make -C tools/perf build-test'
Add a libperf build test, that is triggered when one does:

  $ make -C tools/perf build-test

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20190901124822.10132-4-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-09-10 14:33:32 +01:00
Jiri Olsa
5079bde790 perf python: Add missing python/perf.so dependency for libperf
The python/perf.so compilation needs libperf ready, otherwise it fails:

  $ make python/perf.so JOBS=1
    BUILD:   Doing 'make -j1' parallel build
    GEN      python/perf.so
  gcc: error: /home/jolsa/kernel/linux-perf/tools/perf/lib/libperf.a: No such file or directory

Fixing this with by adding libperf dependency.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20190901124822.10132-2-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-09-10 14:33:32 +01:00
Josh Poimboeuf
f73b3cc39c objtool: Clobber user CFLAGS variable
If the build user has the CFLAGS variable set in their environment,
objtool blindly appends to it, which can cause unexpected behavior.

Clobber CFLAGS to ensure consistent objtool compilation behavior.

Reported-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Tested-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/83a276df209962e6058fcb6c615eef9d401c21bc.1567121311.git.jpoimboe@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-09-10 08:49:52 +02:00
Srinivas Pandruvada
1233c7b95c tools/power/x86/intel-speed-select: Display core count for bucket
Read the bucket and core count relationship via MSR and display
when displaying turbo ratio limits.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2019-09-09 13:19:35 +03:00
Rafael J. Wysocki
e3e2ffdc0c Merge back earlier power management tools updates for v5.4. 2019-09-07 23:39:55 +02:00
Rafael J. Wysocki
a41f7f0ae7 Merge tag 'linux-cpupower-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux
Pull cpupower utility updates for v5.4 from Shuah Khan:

"This cpupower update for Linux 5.4-rc1 consists of bug fixes and
 German translation updates from Benjamin Weis."

* tag 'linux-cpupower-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux:
  cpupower: update German translation
  tools/power/cpupower: fix 64bit detection when cross-compiling
  cpupower: Add missing newline at end of file
2019-09-07 23:38:47 +02:00
Prarit Bhargava
3bc3d30ca3 tools/power/x86/intel-speed-select: Fix memory leak
cpumasks are allocated by calling the alloc_cpu_mask() function and are
never free'd.  They should be free'd after the commands have run.

Fix the memory leaks by calling free_cpu_set().

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: David Arcari <darcari@redhat.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2019-09-07 21:19:13 +03:00
Prarit Bhargava
522586a9d5 tools/power/x86/intel-speed-select: Output success/failed for command output
Command output has confusing data, returning "0" on success.  For example

|# ./intel-speed-select -c 14 turbo-freq enable
Intel(R) Speed Select Technology
Executing on CPU model:106[0x6a]
 package-1
   die-0
     cpu-14
       turbo-freq
         enable:0

To avoid confusion change the command output to 'success' or 'failed'.

v2: Remove help output line.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: David Arcari <darcari@redhat.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2019-09-07 21:19:13 +03:00
Prarit Bhargava
49aed155ec tools/power/x86/intel-speed-select: Output human readable CPU list
The intel-speed-select tool currently only outputs a hexidecimal CPU mask,
which requires translation for use with kernel parameters such as
isolcpus.

Along with the CPU mask, output a human readable CPU list.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: David Arcari <darcari@redhat.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2019-09-07 21:19:13 +03:00
Prarit Bhargava
76c2ef35f7 tools/power/x86/intel-speed-select: Change turbo ratio output to maximum turbo frequency
The intel-speed-select tool currently outputs the turbo ratio for every
bucket.  Make the output more user-friendly by changing the output to the
maximum turbo frequency.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: David Arcari <darcari@redhat.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2019-09-07 21:19:13 +03:00
Prarit Bhargava
808088e4a1 tools/power/x86/intel-speed-select: Switch output to MHz
These features are introduced on new processors that will never operate
in the KHz range.

Save some zeros and switch the output to MHz.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: David Arcari <darcari@redhat.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2019-09-07 21:19:13 +03:00
Prarit Bhargava
dece22a2d5 tools/power/x86/intel-speed-select: Simplify output for turbo-freq and base-freq
The current output of 'intel-speed-select -c 53 perf-profile info -l 0'
shows

        speed-select-turbo-freq-support:1
        speed-select-base-freq-support:1
        speed-select-base-freq-enabled:0
        speed-select-turbo-freq-enabled:0

Simplify the output to single lines displaying status of disabled,
enabled, and unsupported.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: David Arcari <darcari@redhat.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2019-09-07 21:19:13 +03:00
Prarit Bhargava
3ec2aef1b0 tools/power/x86/intel-speed-select: Fix cpu-count output
I have a system with 28 threads/socket but intel-speed-select reports
a cpu-count of 29.

Fix an off-by-one error in the cpu_count() function.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: David Arcari <darcari@redhat.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2019-09-07 21:19:13 +03:00
Prarit Bhargava
43774c0dcc tools/power/x86/intel-speed-select: Fix help option typo
Help is -h, not --h.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: David Arcari <darcari@redhat.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2019-09-07 21:19:13 +03:00
Prarit Bhargava
a8dc074481 tools/power/x86/intel-speed-select: Fix package typo
packag_ should be package_.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: David Arcari <darcari@redhat.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2019-09-07 21:19:13 +03:00
Dan Carpenter
010764b885 tools/power/x86/intel-speed-select: Fix a read overflow in isst_set_tdp_level_msr()
The isst_send_msr_command() function will read 8 bytes but we are
passing an address to an int (4 bytes) so it results in a read overflow.

Fixes: 3fb4f7cd47 ("tools/power/x86: A tool to validate Intel Speed Select commands")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2019-09-07 21:19:05 +03:00
Stanislav Fomichev
1f4f80fed2 selftests/bpf: test_progs: convert test_tcp_rtt
Move the files, adjust includes, remove entry from Makefile & .gitignore

Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2019-09-06 09:59:06 -07:00
Stanislav Fomichev
e3e02e1d9c selftests/bpf: test_progs: convert test_sockopt_inherit
Move the files, adjust includes, remove entry from Makefile & .gitignore

I also added pthread_cond_wait for the server thread startup. We don't
want to connect to the server that's not yet up (for some reason
this existing race is now more prominent with test_progs).

Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2019-09-06 09:59:05 -07:00
Stanislav Fomichev
3886bd7c9b selftests/bpf: test_progs: convert test_sockopt_multi
Move the files, adjust includes, remove entry from Makefile & .gitignore

Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2019-09-06 09:59:05 -07:00
Stanislav Fomichev
9a365e67d8 selftests/bpf: test_progs: convert test_sockopt_sk
Move the files, adjust includes, remove entry from Makefile & .gitignore

Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2019-09-06 09:59:05 -07:00
Stanislav Fomichev
4a64742168 selftests/bpf: test_progs: convert test_sockopt
Move the files, adjust includes, remove entry from Makefile & .gitignore

Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2019-09-06 09:59:05 -07:00
Stanislav Fomichev
88dadc6327 selftests/bpf: test_progs: add test__join_cgroup helper
test__join_cgroup() combines the following operations that usually
go hand in hand and returns cgroup fd:

  * setup cgroup environment (make sure cgroupfs is mounted)
  * mkdir cgroup
  * join cgroup

It also marks a test as a "cgroup cleanup needed" and removes cgroup
state after the test is done.

Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2019-09-06 09:59:05 -07:00
David S. Miller
1e46c09ec1 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says:

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

The main changes are:

1) Add the ability to use unaligned chunks in the AF_XDP umem. By
   relaxing where the chunks can be placed, it allows to use an
   arbitrary buffer size and place whenever there is a free
   address in the umem. Helps more seamless DPDK AF_XDP driver
   integration. Support for i40e, ixgbe and mlx5e, from Kevin and
   Maxim.

2) Addition of a wakeup flag for AF_XDP tx and fill rings so the
   application can wake up the kernel for rx/tx processing which
   avoids busy-spinning of the latter, useful when app and driver
   is located on the same core. Support for i40e, ixgbe and mlx5e,
   from Magnus and Maxim.

3) bpftool fixes for printf()-like functions so compiler can actually
   enforce checks, bpftool build system improvements for custom output
   directories, and addition of 'bpftool map freeze' command, from Quentin.

4) Support attaching/detaching XDP programs from 'bpftool net' command,
   from Daniel.

5) Automatic xskmap cleanup when AF_XDP socket is released, and several
   barrier/{read,write}_once fixes in AF_XDP code, from Björn.

6) Relicense of bpf_helpers.h/bpf_endian.h for future libbpf
   inclusion as well as libbpf versioning improvements, from Andrii.

7) Several new BPF kselftests for verifier precision tracking, from Alexei.

8) Several BPF kselftest fixes wrt endianess to run on s390x, from Ilya.

9) And more BPF kselftest improvements all over the place, from Stanislav.

10) Add simple BPF map op cache for nfp driver to batch dumps, from Jakub.

11) AF_XDP socket umem mapping improvements for 32bit archs, from Ivan.

12) Add BPF-to-BPF call and BTF line info support for s390x JIT, from Yauheni.

13) Small optimization in arm64 JIT to spare 1 insns for BPF_MOD, from Jerin.

14) Fix an error check in bpf_tcp_gen_syncookie() helper, from Petar.

15) Various minor fixes and cleanups, from Nathan, Masahiro, Masanari,
    Peter, Wei, Yue.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-06 16:49:17 +02:00
David S. Miller
2e9550ed67 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec
Steffen Klassert says:

====================
pull request (net): ipsec 2019-09-05

1) Several xfrm interface fixes from Nicolas Dichtel:
   - Avoid an interface ID corruption on changelink.
   - Fix wrong intterface names in the logs.
   - Fix a list corruption when changing network namespaces.
   - Fix unregistation of the underying phydev.

2) Fix a potential warning when merging xfrm_plocy nodes.
   From Florian Westphal.

Please pull or let me know if there are problems.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-06 15:09:16 +02:00
Ingo Molnar
9326011edf Merge branch 'x86/cleanups' into x86/cpu, to pick up dependent changes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-09-06 07:30:23 +02:00
Alexei Starovoitov
310f4204ee selftests/bpf: precision tracking tests
Add two tests to check that stack slot marking during backtracking
doesn't trigger 'spi > allocated_stack' warning.
One test is using BPF_ST insn. Another is using BPF_STX.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-09-05 13:55:50 +02:00
David Ahern
91bfb56485 selftest: A few cleanups for fib_nexthops.sh
Cleanups of the tests in fib_nexthops.sh
1. Several tests noted unexpected route output, but the
   discrepancy was not showing in the summary output and
   overlooked in the verbose output. Add a WARNING message
   to the summary output to make it clear a test is not showing
   expected output.

2. Several check_* calls are missing extra data like scope and metric
   causing mismatches when the nexthops or routes are correct - some of
   them are a side effect of the evolving iproute2 command. Update the
   data to the expected output.

3. Several check_routes are checking for the wrong nexthop data,
   most likely a copy-paste-update error.

4. A couple of tests were re-using a nexthop id that already existed.
   Fix those to use a new id.

Fixes: 6345266a99 ("selftests: Add test cases for nexthop objects")
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05 11:59:39 +02:00
Mao Han
51bc620ba9 riscv: Add support for libdw
This patch adds support for DWARF register mappings and libdw registers
initialization, which is used by perf callchain analyzing when
--call-graph=dwarf is given.

Signed-off-by: Mao Han <han_mao@c-sky.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Palmer Dabbelt <palmer@sifive.com>
Cc: linux-riscv <linux-riscv@lists.infradead.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Guo Ren <guoren@kernel.org>
Tested-by: Greentime Hu <greentime.hu@sifive.com>
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
2019-09-05 00:51:52 -07:00
Oliver O'Halloran
85d86c8aa5 selftests/powerpc: Add basic EEH selftest
Use the new eeh_dev_check and eeh_dev_break interfaces to test EEH
recovery.  Historically this has been done manually using platform specific
EEH error injection facilities (e.g. via RTAS). However, documentation on
how to use these facilities is haphazard at best and non-existent at worst
so it's hard to develop a cross-platform test.

The new debugfs interfaces allow the kernel to handle the platform specific
details so we can write a more generic set of sets. This patch adds the
most basic of recovery tests where:

a) Errors are injected and recovered from sequentially,
b) Errors are not injected into PCI-PCI bridges, such as PCIe switches.
c) Errors are only injected into device function zero.
d) No errors are injected into Virtual Functions.

a), b) and c) are largely due to limitations of Linux's EEH support.  EEH
recovery is serialised in the EEH recovery thread which forces a).
Similarly, multi-function PCI devices are almost always grouped into the
same PE so injecting an error on one function exercises the same code
paths. c) is because we currently more or less ignore PCI bridges during
recovery and assume that the recovered topology will be the same as the
original.

d) is due to the limits of the eeh_dev_break interface. With the current
implementation we can't inject an error into a specific VF without
potentially causing additional errors on other VFs. Due to the serialised
recovery process we might end up timing out waiting for another function to
recover before the function of interest is recovered. The platform specific
error injection facilities are finer-grained and allow this capability, but
doing that requires working out how to use those facilities first.

Basicly, it's better than nothing and it's a base to build on.

Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190903101605.2890-15-oohall@gmail.com
2019-09-05 14:22:40 +10:00
Todd Brandt
4216148337 pm-graph: make setVal unbuffered again for python2 and python3
sleepgraph:
 - kprobe_events won't set correctly if the data is buffered
 - force sysvals.setVal to be unbuffered and use binary mode
 - tested in both python2 and python3

Link: https://bugzilla.kernel.org/show_bug.cgi?id=204773
Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com>
[ rjw: Subject ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-09-04 23:10:26 +02:00
Thomas Huth
81cb736c0c KVM: selftests: Test invalid bits in kvm_valid_regs and kvm_dirty_regs on s390x
Now that we disallow invalid bits in kvm_valid_regs and kvm_dirty_regs
on s390x, too, we should also check this condition in the selftests.
The code has been taken from the x86-version of the sync_regs_test.

Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Link: https://lore.kernel.org/lkml/20190904085200.29021-3-thuth@redhat.com/
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
2019-09-04 15:38:05 +02:00
Scott Branden
1798045900 selftests: firmware: Add request_firmware_into_buf tests
Add tests cases for checking request_firmware_into_buf api.
API was introduced into kernel with no testing present previously.

Signed-off-by: Scott Branden <scott.branden@broadcom.com>
Acked-by: Luis Chamberlain <mcgrof@kernel.org>
Acked-by: Shuah Khan <skhan@linuxfoundation.org>
Link: https://lore.kernel.org/r/20190822184005.901-3-scott.branden@broadcom.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-09-04 13:31:28 +02:00
Greg Kroah-Hartman
74eb9c06b1 Merge tag 'iio-for-5.4b-take3' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next
Jonathan writes:

Second set of new device support, cleanups and features for IIO in the 5.4 cycle

Revised pull request to fix up a missing Signed-off-by and roll in
a fix in the lsm9ds1 support after I broke it when applying.
Revised again because the fix changed a hash meaning a fix
that previously followed it now had the wrong fixes tag.

A few fixes in here that could have gone a faster path but aren't quite
worth the rush for 5.3.

New device support
* ad7606
  - Support the ad7606b which adds a software controlled mode alongside
    the pin controlled only approach of the ad7606. Including dt-bindings.
* lsm6dsx
  - Add support for the gyro and accelerometer part of the lsm9ds1 which is
    a compound device also including a magnetometer (st_sensors driver).
    Includes bindings and precursor rework of the driver.

Features
* ad7192
  - Add support for low pass filter control.
  - DT binding docs.

Cleanups and minor fixes
* MAINTAINERS
  - Fix a typo in a path.
  - Add entry for ad7606
* ad5380
  - Fix a failure to dereference a pointer before atempting to assign the
    value.
* ad7192
  - Drop platform data as not used in mainline and we now have full DT bindings.
* ad7606
  - YAML conversion for dt-bindings.
* adis16240
  - Rework write_raw to make it more readable using GENMASK.
* adis16460
  - Fix and issue with an unsigned variable holding potential negatives.
* cros_ec
  - Fix missing default of calibration vector so that we get 'something'
    before calibration is complete on a given axis.
* hid-sensors
  - Use int_pow instead of opencoding.
* isl29501
  - rename dt-binding docs to include renesas inline with other renesas parts
    and general current convention.
* kxcjk1013
  - Improve comments on the 'unusual' ACPI ids used to identify which sensor
    is which in certain laptops.
* lsm6dsx
  - Add one bit to the fifo status masks for a number of parts.
  - Drop a reserved entry from the sensitivity values to tidy up interface.
  - Use core conversion macro from G to m/s^2 for lsm9ds1 to make it easier
    to relate to the datasheet and consistent with other parts supported.
* max1027
  - Use device managed APIs to avoid manual error handling and cleanup.
* rfd77402
  - Typo in Kconfig help.
* sc27xx
  - Switch to polling mode from interrupts as interrupt handling typically
    to slow for very short sleeps.
* st-sensors
  - Fix some missing selects for regmap.
* tools
  - Add a .gitignore containing the binary outputs.

* tag 'iio-for-5.4b-take3' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (27 commits)
  iio: imu: st_lsm6dsx: rely on IIO_G_TO_M_S_2 for gain definition for LSM9DS1
  iio: imu: st_lsm6dsx: remove invalid gain value for LSM9DS1
  iio: cros_ec: set calibscale for 3d MEMS to unit vector
  iio: dac: ad5380: fix incorrect assignment to val
  iio: imu: st_lsm6dsx: Fix FIFO diff mask for tagged fifo
  dt-bindings: iio: imu: st_lsm6dsx: add lsm9ds1 device bindings
  iio: imu: st_lsm6dsx: add support for accel/gyro unit of lsm9ds1
  iio: imu: st_lsm6dsx: move register definitions to sensor_settings struct
  iio: imu: st_lsm6dsx: introduce update_fifo function pointer
  dt-bindings: iio: light: isl29501: Rename bindings documentation file
  Kconfig: Fix the reference to the RFD77402 ToF sensor in the 'help' section
  iio: st_sensors: Fix build error
  dt-bindings: iio: adc: Add AD7606B ADC documentation
  dt-bindings: iio: adc: Migrate AD7606 documentation to yaml
  MAINTAINERS: Add Beniamin Bia for AD7606 driver
  iio: adc: ad7606: Add support for AD7606B ADC
  tools: iio: add .gitignore
  iio: adc: sc27xx: Change to polling mode to read data
  iio: hid-sensor-attributes: Convert to use int_pow()
  iio: adc: max1027: Use device-managed APIs
  ...
2019-09-03 22:27:46 +02:00
Ilya Leoshkevich
3ec2a0ed3f selftests/bpf: fix endianness issues in test_sysctl
A lot of test_sysctl sub-tests fail due to handling strings as a bunch
of immediate values in a little-endian-specific manner.

Fix by wrapping all immediates in bpf_ntohl and the new bpf_be64_to_cpu.

fixup_sysctl_value() dynamically writes an immediate, and thus should be
endianness-aware.  Implement this by simply memcpy()ing the raw
user-provided value, since testcase endianness and bpf program
endianness match.

Fixes: 1f5fa9ab6e ("selftests/bpf: Test BPF_CGROUP_SYSCTL")
Fixes: 9a1027e525 ("selftests/bpf: Test file_pos field in bpf_sysctl ctx")
Fixes: 6041c67f28 ("selftests/bpf: Test bpf_sysctl_get_name helper")
Fixes: 11ff34f74e ("selftests/bpf: Test sysctl_get_current_value helper")
Fixes: 786047dd08 ("selftests/bpf: Test bpf_sysctl_{get,set}_new_value helpers")
Fixes: 8549ddc832 ("selftests/bpf: Test bpf_strtol and bpf_strtoul helpers")
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-09-03 21:01:52 +02:00
Ilya Leoshkevich
416c572821 selftests/bpf: improve unexpected success reporting in test_syctl
When tests fail because sysctl() unexpectedly succeeds, they print an
inappropriate "Unexpected failure" message and a random errno. Zero
out errno before calling sysctl() and replace the message with
"Unexpected success".

Fixes: 1f5fa9ab6e ("selftests/bpf: Test BPF_CGROUP_SYSCTL")
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-09-03 21:01:52 +02:00
Ilya Leoshkevich
3404ddf234 selftests/bpf: fix "ctx:write sysctl:write read ok" on s390
"ctx:write sysctl:write read ok" fails on s390 because it reads the
first byte of an int assuming it's the least-significant one, which
is not the case on big-endian arches. Since we are not testing narrow
accesses here (there is e.g. "ctx:file_pos sysctl:read read ok narrow"
for that), simply read the whole int.

Fixes: 1f5fa9ab6e ("selftests/bpf: Test BPF_CGROUP_SYSCTL")
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-09-03 21:01:52 +02:00
Ilya Leoshkevich
b963267994 selftests/bpf: introduce bpf_cpu_to_be64 and bpf_be64_to_cpu
test_lwt_seg6local and test_seg6_loop use custom 64-bit endianness
conversion macros. Centralize their definitions in bpf_endian.h in order
to reduce code duplication. This will also be useful when bpf_endian.h
is promoted to an offical libbpf header.

Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-09-03 21:01:52 +02:00
Stanislav Fomichev
ac915762ea selftests/bpf: test_progs: add missing \n to CHECK_FAIL
Copy-paste error from CHECK.

Fixes: d38835b75f ("selftests/bpf: test_progs: remove global fail/success counts")
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-09-03 15:13:14 +02:00
Stanislav Fomichev
d80507d15d selftests/bpf: test_progs: fix verbose mode garbage
fseeko(.., 0, SEEK_SET) on a memstream just puts the buffer pointer
to the beginning so when we call fflush on it we get some garbage
log data from the previous test. Let's manually set terminating
byte to zero at the reported buffer size.

To show the issue consider the following snippet:

	stream = open_memstream (&buf, &len);

	fprintf(stream, "aaa");
	fflush(stream);
	printf("buf=%s, len=%zu\n", buf, len);
	fseeko(stream, 0, SEEK_SET);

	fprintf(stream, "b");
	fflush(stream);
	printf("buf=%s, len=%zu\n", buf, len);

Output:

	buf=aaa, len=3
	buf=baa, len=1

Fixes: 946152b3c5 ("selftests/bpf: test_progs: switch to open_memstream")
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-09-03 15:13:14 +02:00
David S. Miller
765b7590c9 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
r8152 conflicts are the NAPI fixes in 'net' overlapping with
some tasklet stuff in net-next

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-02 11:20:17 -07:00
Greg Kroah-Hartman
7a81146204 Merge 5.3-rc7 into usb-next
We need the usb fixes in here for testing

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-09-02 19:31:18 +02:00