From 543d976fa2ebf5543bd07b5d487bf3a6144c0886 Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Mon, 2 Mar 2015 09:59:05 +0200 Subject: [PATCH] perf tools: Initialize cpu set in pthread_attr_setaffinity_np feature test Feature tests are compiled but not executed, however it might avoid a future uninitialized variable warning, so initialize the cpu set. Reported-by: Ingo Molnar Signed-off-by: Adrian Hunter Cc: H. Peter Anvin Cc: Ingo Molnar Cc: Stephane Eranian Cc: Thomas Gleixner Cc: linux-tip-commits@vger.kernel.org Link: http://lkml.kernel.org/r/54F41849.1010906@intel.com Signed-off-by: Arnaldo Carvalho de Melo --- .../config/feature-checks/test-pthread-attr-setaffinity-np.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/tools/perf/config/feature-checks/test-pthread-attr-setaffinity-np.c b/tools/perf/config/feature-checks/test-pthread-attr-setaffinity-np.c index 2b81b72eca23..fdada5e8d454 100644 --- a/tools/perf/config/feature-checks/test-pthread-attr-setaffinity-np.c +++ b/tools/perf/config/feature-checks/test-pthread-attr-setaffinity-np.c @@ -1,5 +1,6 @@ #include #include +#include int main(void) { @@ -8,7 +9,8 @@ int main(void) cpu_set_t cs; pthread_attr_init(&thread_attr); - /* don't care abt exact args, just the API itself in libpthread */ + CPU_ZERO(&cs); + ret = pthread_attr_setaffinity_np(&thread_attr, sizeof(cs), &cs); return ret; -- 2.20.1