linux-stable.git/tools, branch v4.19.71

tools: hv: fix KVP and VSS daemons exit code

2019-09-06T08:22:00+00:00

[ Upstream commit b0995156071b0ff29a5902964a9dc8cfad6f81c0 ]

HyperV KVP and VSS daemons should exit with 0 when the '--help'
or '-h' flags are used.

Signed-off-by: Adrian Vladu 

Cc: "K. Y. Srinivasan" 
Cc: Haiyang Zhang 
Cc: Stephen Hemminger 
Cc: Sasha Levin 
Cc: Alessandro Pilotti 
Signed-off-by: Sasha Levin

tools: hv: fixed Python pep8/flake8 warnings for lsvmbus

2019-09-06T08:22:00+00:00

[ Upstream commit 5912e791f3018de0a007c8cfa9cb38c97d3e5f5c ]

Fixed pep8/flake8 python style code for lsvmbus tool.

The TAB indentation was on purpose ignored (pep8 rule W191) to make
sure the code is complying with the Linux code guideline.
The following command doe not show any warnings now:
pep8 --ignore=W191 lsvmbus
flake8 --ignore=W191 lsvmbus

Signed-off-by: Adrian Vladu 

Cc: "K. Y. Srinivasan" 
Cc: Haiyang Zhang 
Cc: Stephen Hemminger 
Cc: Sasha Levin 
Cc: Dexuan Cui 
Cc: Alessandro Pilotti 
Signed-off-by: Sasha Levin

selftests: kvm: Adding config fragments

2019-08-29T06:28:48+00:00

[ Upstream commit c096397c78f766db972f923433031f2dec01cae0 ]

selftests kvm test cases need pre-required kernel configs for the test
to get pass.

Signed-off-by: Naresh Kamboju 
Signed-off-by: Paolo Bonzini 
Signed-off-by: Sasha Levin

perf pmu-events: Fix missing "cpu_clk_unhalted.core" event

2019-08-29T06:28:47+00:00

[ Upstream commit 8e6e5bea2e34c61291d00cb3f47560341aa84bc3 ]

The events defined in pmu-events JSON are parsed and added into perf
tool. For fixed counters, we handle the encodings between JSON and perf
by using a static array fixed[].

But the fixed[] has missed an important event "cpu_clk_unhalted.core".

For example, on the Tremont platform,

  [root@localhost ~]# perf stat -e cpu_clk_unhalted.core -a
  event syntax error: 'cpu_clk_unhalted.core'
                       \___ parser error

With this patch, the event cpu_clk_unhalted.core can be parsed.

  [root@localhost perf]# ./perf stat -e cpu_clk_unhalted.core -a -vvv
  ------------------------------------------------------------
  perf_event_attr:
    type                             4
    size                             112
    config                           0x3c
    sample_type                      IDENTIFIER
    read_format                      TOTAL_TIME_ENABLED|TOTAL_TIME_RUNNING
    disabled                         1
    inherit                          1
    exclude_guest                    1
  ------------------------------------------------------------
...

Signed-off-by: Jin Yao 
Cc: Alexander Shishkin 
Cc: Andi Kleen 
Cc: Jin Yao 
Cc: Jiri Olsa 
Cc: Kan Liang 
Cc: Peter Zijlstra 
Link: http://lkml.kernel.org/r/20190729072755.2166-1-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo 
Signed-off-by: Sasha Levin

perf cpumap: Fix writing to illegal memory in handling cpumap mask

2019-08-29T06:28:47+00:00

[ Upstream commit 5f5e25f1c7933a6e1673515c0b1d5acd82fea1ed ]

cpu_map__snprint_mask() would write to illegal memory pointed by
zalloc(0) when there is only one cpu.

This patch fixes the calculation and adds sanity check against the input
parameters.

Signed-off-by: He Zhe 
Cc: Alexander Shishkin 
Cc: Alexey Budankov 
Cc: Jiri Olsa 
Cc: Kan Liang 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Cc: Stephane Eranian 
Fixes: 4400ac8a9a90 ("perf cpumap: Introduce cpu_map__snprint_mask()")
Link: http://lkml.kernel.org/r/1564734592-15624-2-git-send-email-zhe.he@windriver.com
Signed-off-by: Arnaldo Carvalho de Melo 
Signed-off-by: Sasha Levin

perf ftrace: Fix failure to set cpumask when only one cpu is present

2019-08-29T06:28:46+00:00

[ Upstream commit cf30ae726c011e0372fd4c2d588466c8b50a8907 ]

The buffer containing the string used to set cpumask is overwritten at
the end of the string later in cpu_map__snprint_mask due to not enough
memory space, when there is only one cpu.

And thus causes the following failure:

  $ perf ftrace ls
  failed to reset ftrace
  $

This patch fixes the calculation of the cpumask string size.

Signed-off-by: He Zhe 
Tested-by: Arnaldo Carvalho de Melo 
Cc: Alexander Shishkin 
Cc: Alexey Budankov 
Cc: Jiri Olsa 
Cc: Kan Liang 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Cc: Stephane Eranian 
Fixes: dc23103278c5 ("perf ftrace: Add support for -a and -C option")
Link: http://lkml.kernel.org/r/1564734592-15624-1-git-send-email-zhe.he@windriver.com
Signed-off-by: Arnaldo Carvalho de Melo 
Signed-off-by: Sasha Levin

perf bench numa: Fix cpu0 binding

2019-08-29T06:28:36+00:00

[ Upstream commit 6bbfe4e602691b90ac866712bd4c43c51e546a60 ]

Michael reported an issue with perf bench numa failing with binding to
cpu0 with '-0' option.

  # perf bench numa mem -p 3 -t 1 -P 512 -s 100 -zZcm0 --thp 1 -M 1 -ddd
  # Running 'numa/mem' benchmark:

   # Running main, "perf bench numa numa-mem -p 3 -t 1 -P 512 -s 100 -zZcm0 --thp 1 -M 1 -ddd"
  binding to node 0, mask: 0000000000000001 => -1
  perf: bench/numa.c:356: bind_to_memnode: Assertion `!(ret)' failed.
  Aborted (core dumped)

This happens when the cpu0 is not part of node0, which is the benchmark
assumption and we can see that's not the case for some powerpc servers.

Using correct node for cpu0 binding.

Reported-by: Michael Petlan 
Signed-off-by: Jiri Olsa 
Cc: Alexander Shishkin 
Cc: Andi Kleen 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Cc: Satheesh Rajendran 
Link: http://lkml.kernel.org/r/20190801142642.28004-1-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo 
Signed-off-by: Sasha Levin

selftests: forwarding: gre_multipath: Fix flower filters

2019-08-29T06:28:30+00:00

[ Upstream commit 1be79d89b7ae96e004911bd228ce8c2b5cc6415f ]

The TC filters used in the test do not work with veth devices because the
outer Ethertype is 802.1Q and not IPv4. The test passes with mlxsw
netdevs since the hardware always looks at "The first Ethertype that
does not point to either: VLAN, CNTAG or configurable Ethertype".

Fix this by matching on the VLAN ID instead, but on the ingress side.
The reason why this is not performed at egress is explained in the
commit cited below.

Fixes: 541ad323db3a ("selftests: forwarding: gre_multipath: Update next-hop statistics match criteria")
Signed-off-by: Ido Schimmel 
Reported-by: Stephen Suryaputra 
Tested-by: Stephen Suryaputra 
Signed-off-by: David S. Miller 
Signed-off-by: Sasha Levin

selftests: forwarding: gre_multipath: Enable IPv4 forwarding

2019-08-29T06:28:29+00:00

[ Upstream commit efa7b79f675da0efafe3f32ba0d6efe916cf4867 ]

The test did not enable IPv4 forwarding during its setup phase, which
causes the test to fail on machines where IPv4 forwarding is disabled.

Fixes: 54818c4c4b93 ("selftests: forwarding: Test multipath tunneling")
Signed-off-by: Ido Schimmel 
Reported-by: Stephen Suryaputra 
Tested-by: Stephen Suryaputra 
Signed-off-by: David S. Miller 
Signed-off-by: Sasha Levin

selftests/bpf: fix sendmsg6_prog on s390

2019-08-29T06:28:28+00:00

[ Upstream commit c8eee4135a456bc031d67cadc454e76880d1afd8 ]

"sendmsg6: rewrite IP & port (C)" fails on s390, because the code in
sendmsg_v6_prog() assumes that (ctx->user_ip6[0] & 0xFFFF) refers to
leading IPv6 address digits, which is not the case on big-endian
machines.

Since checking bitwise operations doesn't seem to be the point of the
test, replace two short comparisons with a single int comparison.

Signed-off-by: Ilya Leoshkevich 
Acked-by: Andrey Ignatov 
Signed-off-by: Daniel Borkmann 
Signed-off-by: Sasha Levin