When executing "make -C tools/testing/selftests/pid_namespace", there exist
many errors such as:
$ make -C tools/testing/selftests/pid_namespace
...
pid_max.c:42:15: error: implicit declaration of function 'mount'
[-Wimplicit-function-declaration]
...
pid_max.c:42:36: error: 'MS_PRIVATE' undeclared (first use in this function);
did you mean 'MAP_PRIVATE'?
...
pid_max.c:42:49: error: 'MS_REC' undeclared (first use in this function)
...
Include sys/mount.h to fix the errors, tested on x86_64 and LoongArch.
Reported-by: Haiyong Sun <sunhaiy...@loongson.cn>
Fixes: 615ab43b838b ("tests/pid_namespace: add pid_max tests")
Signed-off-by: Tiezhu Yang <yangtie...@loongson.cn>
---
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 51c414faabb0..96f274f0582b 100644
--- a/tools/testing/selftests/pid_namespace/pid_max.c
+++ b/tools/testing/selftests/pid_namespace/pid_max.c
@@ -10,6 +10,7 @@
#include <stdlib.h>
#include <string.h>
#include <syscall.h>
+#include <sys/mount.h>
#include <sys/wait.h>
#include "../kselftest_harness.h"
--
2.42.0
