Commit c814bf95 authored by ye xingchen's avatar ye xingchen Committed by Michael Ellerman
Browse files

powerpc/selftests: Use timersub() for gettimeofday() 



Use timersub() function to simplify the code.

Reported-by: default avatarZeal Robot <zealci@zte.com.cn>
Signed-off-by: default avatarye xingchen <ye.xingchen@zte.com.cn>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220816105106.82666-1-ye.xingchen@zte.com.cn
parent 1c23f9e6

tools/testing/selftests/powerpc/benchmarks/gettimeofday.c

+4 −2
Original line number Diff line number Diff line
@@ -12,7 +12,7 @@ static int test_gettimeofday(void) 
{

	int i;



	struct timeval tv_start, tv_end;

	struct timeval tv_start, tv_end, tv_diff;



	gettimeofday(&tv_start, NULL);
@@ -20,7 +20,9 @@ static int test_gettimeofday(void) 
		gettimeofday(&tv_end, NULL);

	}



	printf("time = %.6f\n", tv_end.tv_sec - tv_start.tv_sec + (tv_end.tv_usec - tv_start.tv_usec) * 1e-6);

	timersub(&tv_start, &tv_end, &tv_diff);



	printf("time = %.6f\n", tv_diff.tv_sec + (tv_diff.tv_usec) * 1e-6);



	return 0;

}