From: Kees Cook <keesc...@chromium.org>
[ Upstream commit c3eeaae9fd736b7f2afbda8d3cbb1cbae06decf3 ]
Something changed recently to uncover this warning:
samples/vfs/test-statx.c:24:15: warning: `struct foo' declared inside
parameter list will not be visible outside of this definition or declaration
24 | #define statx foo
| ^~~
Which is due the use of "struct statx" (here, "struct foo") in a function
prototype argument list before it has been defined:
int
# 56 "/usr/include/x86_64-linux-gnu/bits/statx-generic.h"
foo
# 56 "/usr/include/x86_64-linux-gnu/bits/statx-generic.h" 3 4
(int __dirfd, const char *__restrict __path, int __flags,
unsigned int __mask, struct
# 57 "/usr/include/x86_64-linux-gnu/bits/statx-generic.h"
foo
# 57 "/usr/include/x86_64-linux-gnu/bits/statx-generic.h" 3 4
*__restrict __buf)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (2,
5)));
Add explicit struct before #include to avoid warning.
Fixes: f1b5618e013a ("vfs: Add a sample program for the new mount API")
Signed-off-by: Kees Cook <keesc...@chromium.org>
Signed-off-by: Andrew Morton <a...@linux-foundation.org>
Cc: Miklos Szeredi <mszer...@redhat.com>
Cc: Al Viro <v...@zeniv.linux.org.uk>
Cc: David Howells <dhowe...@redhat.com>
Link: http://lkml.kernel.org/r/202006282213.C516EA6@keescook
Signed-off-by: Linus Torvalds <torva...@linux-foundation.org>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
samples/vfs/test-statx.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/samples/vfs/test-statx.c b/samples/vfs/test-statx.c
index a3d68159fb510..507f09c38b49f 100644
--- a/samples/vfs/test-statx.c
+++ b/samples/vfs/test-statx.c
@@ -23,6 +23,8 @@
#include <linux/fcntl.h>
#define statx foo
#define statx_timestamp foo_timestamp
+struct statx;
+struct statx_timestamp;
#include <sys/stat.h>
#undef statx
#undef statx_timestamp
--
2.25.1
