On Mon, 2024-07-22 at 22:54 -0700, Tony Ambardar wrote: > Add a "bpf_util.h" include to avoid the following error seen > compiling for > mips64el with musl libc: > > bench.c: In function 'find_benchmark': > bench.c:590:25: error: implicit declaration of function > 'ARRAY_SIZE' [-Werror=implicit-function-declaration] > 590 | for (i = 0; i < ARRAY_SIZE(benchs); i++) { > | ^~~~~~~~~~ > cc1: all warnings being treated as errors I'm curious why this error doesn't occur on other platforms. ARRAY_SIZE is actually defined in linux/kernel.h (tools/include/linux/kernel.h). I think you should find out why this file is not included on your platform. > > Fixes: 8e7c2a023ac0 ("selftests/bpf: Add benchmark runner > infrastructure") > Signed-off-by: Tony Ambardar <tony.ambardar@xxxxxxxxx> > --- > tools/testing/selftests/bpf/bench.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/tools/testing/selftests/bpf/bench.c > b/tools/testing/selftests/bpf/bench.c > index 627b74ae041b..90dc3aca32bd 100644 > --- a/tools/testing/selftests/bpf/bench.c > +++ b/tools/testing/selftests/bpf/bench.c > @@ -10,6 +10,7 @@ > #include <sys/sysinfo.h> > #include <signal.h> > #include "bench.h" > +#include "bpf_util.h" > #include "testing_helpers.h" > > struct env env = {