On 6/20/25 8:43 AM, Chen Linxuan wrote:
> When build kernel selftests on Ubuntu 24.04, I got a compiler error:
>
> mount-notify_test.c:22:3: error: conflicting types for ‘__kernel_fsid_t’;
> have ‘struct <anonymous>’
> 22 | } __kernel_fsid_t;
> | ^~~~~~~~~~~~~~~
> In file included from .../linux/usr/include/asm/posix_types_64.h:18,
> from .../linux/usr/include/asm/posix_types.h:7,
> from .../linux/usr/include/linux/posix_types.h:36,
> from .../linux/usr/include/linux/types.h:9,
> from .../linux/usr/include/linux/stat.h:5,
> from /usr/include/x86_64-linux-gnu/bits/statx.h:31,
> from /usr/include/x86_64-linux-gnu/sys/stat.h:465,
> from mount-notify_test.c:9:
> .../linux/usr/include/asm-generic/posix_types.h:81:3: note: previous
> declaration of ‘__kernel_fsid_t’ with type ‘__kernel_fsid_t’
> 81 | } __kernel_fsid_t;
> | ^~~~~~~~~~~~~~~
>
> Signed-off-by: Chen Linxuan <[email protected]>
Reviewed-by: Muhammad Usama Anjum <[email protected]>
Tested-by: Muhammad Usama Anjum <[email protected]>
> ---
> .../selftests/filesystems/mount-notify/mount-notify_test.c | 7 -------
> .../filesystems/mount-notify/mount-notify_test_ns.c | 7 -------
> 2 files changed, 14 deletions(-)
>
> diff --git
> a/tools/testing/selftests/filesystems/mount-notify/mount-notify_test.c
> b/tools/testing/selftests/filesystems/mount-notify/mount-notify_test.c
> index b4cb494206e5d..2d197ad8cb75a 100644
> --- a/tools/testing/selftests/filesystems/mount-notify/mount-notify_test.c
> +++ b/tools/testing/selftests/filesystems/mount-notify/mount-notify_test.c
> @@ -15,13 +15,6 @@
> #include "../statmount/statmount.h"
> #include "../utils.h"
>
> -// Needed for linux/fanotify.h
> -#ifndef __kernel_fsid_t
> -typedef struct {
> - int val[2];
> -} __kernel_fsid_t;
> -#endif
> -
> #include <sys/fanotify.h>
>
> static const char root_mntpoint_templ[] =
> "/tmp/mount-notify_test_root.XXXXXX";
> diff --git
> a/tools/testing/selftests/filesystems/mount-notify/mount-notify_test_ns.c
> b/tools/testing/selftests/filesystems/mount-notify/mount-notify_test_ns.c
> index 1bd090e9c8dd5..d6a6a7ee87028 100644
> --- a/tools/testing/selftests/filesystems/mount-notify/mount-notify_test_ns.c
> +++ b/tools/testing/selftests/filesystems/mount-notify/mount-notify_test_ns.c
> @@ -16,13 +16,6 @@
> #include "../statmount/statmount.h"
> #include "../utils.h"
>
> -// Needed for linux/fanotify.h
> -#ifndef __kernel_fsid_t
> -typedef struct {
> - int val[2];
> -} __kernel_fsid_t;
> -#endif
> -
> #include <sys/fanotify.h>
>
> static const char root_mntpoint_templ[] =
> "/tmp/mount-notify_test_root.XXXXXX";
