pid_max.c: In function ‘pid_max_cb’: pid_max.c:42:15: error: implicit declaration of function ‘mount’ [-Wimplicit-function-declaration] 42 | ret = mount("", "/", NULL, MS_PRIVATE | MS_REC, 0); | ^~~~~ pid_max.c:42:36: error: ‘MS_PRIVATE’ undeclared (first use in this function); did you mean ‘MAP_PRIVATE’? 42 | ret = mount("", "/", NULL, MS_PRIVATE | MS_REC, 0); | ^~~~~~~~~~ | MAP_PRIVATE pid_max.c:42:49: error: ‘MS_REC’ undeclared (first use in this function) 42 | ret = mount("", "/", NULL, MS_PRIVATE | MS_REC, 0); | ^~~~~~ pid_max.c:48:9: error: implicit declaration of function ‘umount2’; did you mean ‘SYS_umount2’? [-Wimplicit-function-declaration] 48 | umount2("/proc", MNT_DETACH); | ^~~~~~~ | SYS_umount2 pid_max.c:48:26: error: ‘MNT_DETACH’ undeclared (first use in this function) 48 | umount2("/proc", MNT_DETACH);

Fixes: 615ab43b838b ("tests/pid_namespace: add pid_max tests") Signed-off-by: T.J. Mercier tjmercier@google.com --- 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"