proc-pidns.c uses open() and O_* flags, but does not include
<fcntl.h>. This breaks the proc selftests build with errors such as:
error: implicit declaration of function 'open'
error: 'O_WRONLY' undeclared
error: 'O_CREAT' undeclared
error: 'O_RDONLY' undeclared
Include <fcntl.h> to provide the declaration and flag definitions.
Fixes: 5554d820f71c ("selftests/proc: add tests for new pidns APIs")
Tested with:
make -C tools/testing/selftests TARGETS=proc
Signed-off-by: Amin Vakil <[email protected]>
---
tools/testing/selftests/proc/proc-pidns.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/tools/testing/selftests/proc/proc-pidns.c
b/tools/testing/selftests/proc/proc-pidns.c
index 25b9a2933c45..6f7c10fe97b3 100644
--- a/tools/testing/selftests/proc/proc-pidns.c
+++ b/tools/testing/selftests/proc/proc-pidns.c
@@ -6,6 +6,7 @@
#include <assert.h>
#include <errno.h>
+#include <fcntl.h>
#include <sched.h>
#include <stdbool.h>
#include <stdlib.h>
--
2.54.0
