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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2017-03-02 21:31:43 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2017-03-04 01:07:19 +0300 |
| commit | b8d1fd7ec661f5ccb9facd57589a563f627df230 (patch) | |
| tree | ca1f6421fc92e6040ea96e19b10f65c552f237d8 /tools/perf/bench | |
| parent | 120010cb1eea151d38a3e66f5ffc79a0c3110292 (diff) | |
| download | linux-b8d1fd7ec661f5ccb9facd57589a563f627df230.tar.xz | |
perf bench futex: Use __maybe_unused
Instead of attributing a variable to itself to silence the compiler, use
the attribute designed for that, avoiding this:
In file included from bench/futex-hash.c:24:
bench/futex.h:95:7: error: explicitly assigning value of variable of type 'pthread_attr_t *' to itself [-Werror,-Wself-assign]
attr = attr;
~~~~ ^ ~~~~
bench/futex.h:96:13: error: explicitly assigning value of variable of type 'size_t' (aka 'unsigned long') to itself [-Werror,-Wself-assign]
cpusetsize = cpusetsize;
~~~~~~~~~~ ^ ~~~~~~~~~~
bench/futex.h:97:9: error: explicitly assigning value of variable of type 'cpu_set_t *' (aka 'struct cpu_set_t *') to itself [-Werror,-Wself-assign]
cpuset = cpuset;
~~~~~~ ^ ~~~~~~
That is only triggered when HAVE_PTHREAD_ATTR_SETAFFINITY_NP isn't set.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-14ws1d1elj2d5ej8g7cwdqau@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/bench')
| -rw-r--r-- | tools/perf/bench/futex.h | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/tools/perf/bench/futex.h b/tools/perf/bench/futex.h index b2e06d1190d0..e44fd3239530 100644 --- a/tools/perf/bench/futex.h +++ b/tools/perf/bench/futex.h @@ -88,13 +88,11 @@ futex_cmp_requeue(u_int32_t *uaddr, u_int32_t val, u_int32_t *uaddr2, int nr_wak #ifndef HAVE_PTHREAD_ATTR_SETAFFINITY_NP #include <pthread.h> -static inline int pthread_attr_setaffinity_np(pthread_attr_t *attr, - size_t cpusetsize, - cpu_set_t *cpuset) +#include <linux/compiler.h> +static inline int pthread_attr_setaffinity_np(pthread_attr_t *attr __maybe_unused, + size_t cpusetsize __maybe_unused, + cpu_set_t *cpuset __maybe_unused) { - attr = attr; - cpusetsize = cpusetsize; - cpuset = cpuset; return 0; } #endif |