Commit ea400d13 authored by Hou Tao's avatar Hou Tao Committed by Alexei Starovoitov
Browse files

selftests/bpf: Output the correct error code for pthread APIs 



The return value of pthread API is the error code when the called
API fails, so output the return value instead of errno.

Signed-off-by: default avatarHou Tao <houtao1@huawei.com>
Link: https://lore.kernel.org/r/20230613080921.1623219-3-houtao@huaweicloud.com


Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
parent 8ad663d3

tools/testing/selftests/bpf/bench.c

+6 −4
Original line number Diff line number Diff line
@@ -441,12 +441,14 @@ static void setup_timer() 
static void set_thread_affinity(pthread_t thread, int cpu)

{

	cpu_set_t cpuset;

	int err;



	CPU_ZERO(&cpuset);

	CPU_SET(cpu, &cpuset);

	if (pthread_setaffinity_np(thread, sizeof(cpuset), &cpuset)) {

	err = pthread_setaffinity_np(thread, sizeof(cpuset), &cpuset);

	if (err) {

		fprintf(stderr, "setting affinity to CPU #%d failed: %d\n",

			cpu, errno);

			cpu, -err);

		exit(1);

	}

}
@@ -605,7 +607,7 @@ static void setup_benchmark(void) 
				     bench->consumer_thread, (void *)(long)i);

		if (err) {

			fprintf(stderr, "failed to create consumer thread #%d: %d\n",

				i, -errno);

				i, -err);

			exit(1);

		}

		if (env.affinity)
@@ -624,7 +626,7 @@ static void setup_benchmark(void) 
				     bench->producer_thread, (void *)(long)i);

		if (err) {

			fprintf(stderr, "failed to create producer thread #%d: %d\n",

				i, -errno);

				i, -err);

			exit(1);

		}

		if (env.affinity)