linux-kernel - [PATCH] selftests/filesystems/mount-notify: remove __kernel_fsid

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Message-ID: <20250620034403.2932627-2-chenlinxuan@uniontech.com>
Date: Fri, 20 Jun 2025 11:43:26 +0800
From: Chen Linxuan <chenlinxuan@...ontech.com>
To: Shuah Khan <shuah@...nel.org>,
	Christian Brauner <brauner@...nel.org>,
	Amir Goldstein <amir73il@...il.com>,
	John Hubbard <jhubbard@...dia.com>,
	Jan Kara <jack@...e.cz>,
	Chen Linxuan <chenlinxuan@...ontech.com>,
	Miklos Szeredi <mszeredi@...hat.com>
Cc: zhanjun@...ontech.com,
	niecheng1@...ontech.com,
	linux-kselftest@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] selftests/filesystems/mount-notify: remove __kernel_fsid_t

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 <chenlinxuan@...ontech.com>
---
 .../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";
-- 
2.43.0