Re: [tip:perf/urgent] perf tools: Fix pthread_attr_setaffinity_np build error

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* tip-bot for Adrian Hunter <tipbot@xxxxxxxxx> wrote:

> --- a/tools/perf/config/feature-checks/test-pthread-attr-setaffinity-np.c
> +++ b/tools/perf/config/feature-checks/test-pthread-attr-setaffinity-np.c
> @@ -5,10 +5,11 @@ int main(void)
>  {
>  	int ret = 0;
>  	pthread_attr_t thread_attr;
> +	cpu_set_t cs;
>  
>  	pthread_attr_init(&thread_attr);
>  	/* don't care abt exact args, just the API itself in libpthread */
> -	ret = pthread_attr_setaffinity_np(&thread_attr, 0, NULL);
> +	ret = pthread_attr_setaffinity_np(&thread_attr, sizeof(cs), &cs);

So I'm splitting hairs, as we never run these testcases, but I think a 
CPU_ZERO(&cs) is needed, as 'cs' might be uninitialized.

Thanks,

	Ingo
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