[PATCH 8/8] debugfs: remove return value of debugfs_create_x64()
From: Greg Kroah-Hartman
Date: Fri Oct 11 2019 - 09:30:05 EST
No one checks the return value of debugfs_create_x64(), as it's not
needed, so make the return value void, so that no one tries to do so in
the future.
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
Documentation/filesystems/debugfs.txt | 4 ++--
fs/debugfs/file.c | 6 +++---
include/linux/debugfs.h | 12 ++++--------
3 files changed, 9 insertions(+), 13 deletions(-)
diff --git a/Documentation/filesystems/debugfs.txt b/Documentation/filesystems/debugfs.txt
index fa2284ad6129..1ec4a94b6e93 100644
--- a/Documentation/filesystems/debugfs.txt
+++ b/Documentation/filesystems/debugfs.txt
@@ -88,8 +88,8 @@ the following functions can be used instead:
struct dentry *parent, u16 *value);
void debugfs_create_x32(const char *name, umode_t mode,
struct dentry *parent, u32 *value);
- struct dentry *debugfs_create_x64(const char *name, umode_t mode,
- struct dentry *parent, u64 *value);
+ void debugfs_create_x64(const char *name, umode_t mode,
+ struct dentry *parent, u64 *value);
These functions are useful as long as the developer knows the size of the
value to be exported. Some types can have different widths on different
diff --git a/fs/debugfs/file.c b/fs/debugfs/file.c
index 54a0db733574..8aac1a9007c9 100644
--- a/fs/debugfs/file.c
+++ b/fs/debugfs/file.c
@@ -687,10 +687,10 @@ EXPORT_SYMBOL_GPL(debugfs_create_x32);
* @value: a pointer to the variable that the file should read to and write
* from.
*/
-struct dentry *debugfs_create_x64(const char *name, umode_t mode,
- struct dentry *parent, u64 *value)
+void debugfs_create_x64(const char *name, umode_t mode, struct dentry *parent,
+ u64 *value)
{
- return debugfs_create_mode_unsafe(name, mode, parent, value, &fops_x64,
+ debugfs_create_mode_unsafe(name, mode, parent, value, &fops_x64,
&fops_x64_ro, &fops_x64_wo);
}
EXPORT_SYMBOL_GPL(debugfs_create_x64);
diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h
index 25c213e9158e..c127c159d10a 100644
--- a/include/linux/debugfs.h
+++ b/include/linux/debugfs.h
@@ -113,8 +113,8 @@ void debugfs_create_x16(const char *name, umode_t mode, struct dentry *parent,
u16 *value);
void debugfs_create_x32(const char *name, umode_t mode, struct dentry *parent,
u32 *value);
-struct dentry *debugfs_create_x64(const char *name, umode_t mode,
- struct dentry *parent, u64 *value);
+void debugfs_create_x64(const char *name, umode_t mode, struct dentry *parent,
+ u64 *value);
void debugfs_create_size_t(const char *name, umode_t mode,
struct dentry *parent, size_t *value);
struct dentry *debugfs_create_atomic_t(const char *name, umode_t mode,
@@ -277,12 +277,8 @@ static inline void debugfs_create_x16(const char *name, umode_t mode,
static inline void debugfs_create_x32(const char *name, umode_t mode,
struct dentry *parent, u32 *value) { }
-static inline struct dentry *debugfs_create_x64(const char *name, umode_t mode,
- struct dentry *parent,
- u64 *value)
-{
- return ERR_PTR(-ENODEV);
-}
+static inline void debugfs_create_x64(const char *name, umode_t mode,
+ struct dentry *parent, u64 *value) { }
static inline void debugfs_create_size_t(const char *name, umode_t mode,
struct dentry *parent, size_t *value)
--
2.23.0