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 <[email protected]>
Signed-off-by: Adrian Hunter <[email protected]>
---
 tools/perf/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 2b81b72..fdada5e 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 <stdint.h>
 #include <pthread.h>
+#include <sched.h>
 
 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;
-- 
1.9.1


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