[PATCH] selftests/net: do_setcpu function not need to have a return value

[Liu Jing <liujing@xxxxxxxxxxxxxxxxxxxx>]

in the do_setcpu, this function does not need to have a return value,
which is meaningless

Signed-off-by: Liu Jing <liujing@xxxxxxxxxxxxxxxxxxxx>
---
 tools/testing/selftests/net/msg_zerocopy.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/tools/testing/selftests/net/msg_zerocopy.c b/tools/testing/selftests/net/msg_zerocopy.c
index bdc03a2097e8..0b54f2011449 100644
--- a/tools/testing/selftests/net/msg_zerocopy.c
+++ b/tools/testing/selftests/net/msg_zerocopy.c
@@ -118,7 +118,7 @@ static uint16_t get_ip_csum(const uint16_t *start, int num_words)
 	return ~sum;
 }
 
-static int do_setcpu(int cpu)
+static void do_setcpu(int cpu)
 {
 	cpu_set_t mask;
 
@@ -129,7 +129,6 @@ static int do_setcpu(int cpu)
 	else if (cfg_verbose)
 		fprintf(stderr, "cpu: %u\n", cpu);
 
-	return 0;
 }
 
 static void do_setsockopt(int fd, int level, int optname, int val)
-- 
2.33.0