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

Subsystems: bpf [general] (safe dynamic programs and tools), bpf [selftests] (test runners & infrastructure), kernel selftest framework, the rest

STALE1972d LANDED

Landed in mainline as 04ea63e34a2e on 2021-03-10.

3 messages, 3 authors, 2021-03-10 · open the first message on its own page

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

From: Jiapeng Chong <hidden>
Date: 2021-03-10 06:23:43

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 <redacted>
Signed-off-by: Jiapeng Chong <redacted>
---
 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

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

From: Yauheni Kaliuta <hidden>
Date: 2021-03-10 09:33:22

On Wed, Mar 10, 2021 at 8:23 AM Jiapeng Chong
[off-list ref] wrote:
Fix the following coccicheck warning:

./tools/testing/selftests/bpf/progs/test_global_func10.c:17:12-13:
WARNING comparing pointer to 0.
but it's ok from the C standard point of view
quoted hunk
Reported-by: Abaci Robot <redacted>
Signed-off-by: Jiapeng Chong <redacted>
---
 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

-- 
WBR, Yauheni

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

From: patchwork-bot+netdevbpf@kernel.org
Date: 2021-03-10 22:01:06

Hello:

This patch was applied to bpf/bpf-next.git (refs/heads/master):

On Wed, 10 Mar 2021 14:22:46 +0800 you wrote:
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 <redacted>
Signed-off-by: Jiapeng Chong <redacted>

[...]
Here is the summary with links:
  - selftests/bpf: fix warning comparing pointer to 0
    https://git.kernel.org/bpf/bpf-next/c/04ea63e34a2e

You are awesome, thank you!
--
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