Re: [PATCH RESEND] selftests: add missing include

From: Shuah Khan
Date: Wed Jun 18 2025 - 17:25:09 EST


On 6/9/25 20:08, Chen Linxuan wrote:
I failed to build this test on Ubuntu 24.04.
Compiler complained about undefined functions mount, umount and some
mount related flags.

Signed-off-by: Chen Linxuan <chenlinxuan@xxxxxxxxxxxxx>
---
tools/testing/selftests/pid_namespace/pid_max.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/pid_namespace/pid_max.c b/tools/testing/selftests/pid_namespace/pid_max.c
index 96f274f0582b6..c3ee8a2eff75b 100644
--- a/tools/testing/selftests/pid_namespace/pid_max.c
+++ b/tools/testing/selftests/pid_namespace/pid_max.c
@@ -12,6 +12,7 @@
#include <syscall.h>
#include <sys/mount.h>

Hmm. I see mount.h included here?

#include <sys/wait.h>
+#include <sys/mount.h>

You are adding a duplicate include for the same file?

#include "../kselftest_harness.h"
#include "../pidfd/pidfd.h"

thanks,
-- Shuah