Avoid pointer type value compared with 0 to make code clear.

./tools/testing/selftests/bpf/progs/mem_rdonly_untrusted.c:221:10-11: WARNING comparing pointer to 0.

Reported-by: Abaci Robot abaci@linux.alibaba.com Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=23403 Signed-off-by: Jiapeng Chong jiapeng.chong@linux.alibaba.com --- tools/testing/selftests/bpf/progs/mem_rdonly_untrusted.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/bpf/progs/mem_rdonly_untrusted.c b/tools/testing/selftests/bpf/progs/mem_rdonly_untrusted.c index 4f94c971ae86..6b725725b2bf 100644 --- a/tools/testing/selftests/bpf/progs/mem_rdonly_untrusted.c +++ b/tools/testing/selftests/bpf/progs/mem_rdonly_untrusted.c @@ -218,7 +218,7 @@ int null_check(void *ctx) int *p;

p = bpf_rdonly_cast(0, 0); - if (p == 0) + if (!p) /* make this a function call to avoid compiler * moving r0 assignment before check. */