[PATCH] selftests/bpf: fix warning comparing pointer to 0

[Jiapeng Chong]

Fix the following coccicheck warning:

./tools/testing/selftests/bpf/progs/test_global_func10.c:17:12-13:
WARNING comparing pointer to 0.

Reported-by: Abaci Robot <ab...@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.ch...@linux.alibaba.com>
---
 tools/testing/selftests/bpf/progs/test_global_func10.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/bpf/progs/test_global_func10.c 
b/tools/testing/selftests/bpf/progs/test_global_func10.c
index 61c2ae9..97b7031 100644
--- a/tools/testing/selftests/bpf/progs/test_global_func10.c
+++ b/tools/testing/selftests/bpf/progs/test_global_func10.c
@@ -14,7 +14,7 @@ struct Big {
 
 __noinline int foo(const struct Big *big)
 {
-       if (big == 0)
+       if (!big)
                return 0;
 
        return bpf_get_prandom_u32() < big->y;
-- 
1.8.3.1