debugfs: remove return value of debugfs_create_size_t()

No one checks the return value of debugfs_create_size_t(), 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@linuxfoundation.org>
Link: https://lore.kernel.org/r/20191011132931.1186197-4-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/Documentation/filesystems/debugfs.txt b/Documentation/filesystems/debugfs.txt
index 1b299ae..55a5da0 100644 (file)
--- a/Documentation/filesystems/debugfs.txt
+++ b/Documentation/filesystems/debugfs.txt
@@ -96,9 +96,8 @@ value to be exported.  Some types can have different widths on different
 architectures, though, complicating the situation somewhat.  There is a
 function meant to help out in one special case:
 
-    struct dentry *debugfs_create_size_t(const char *name, umode_t mode,
-                                        struct dentry *parent, 
-                                        size_t *value);
+    void debugfs_create_size_t(const char *name, umode_t mode,
+                              struct dentry *parent, size_t *value);
 
 As might be expected, this function will create a debugfs file to represent
 a variable of type size_t.

diff --git a/fs/debugfs/file.c b/fs/debugfs/file.c
index 4c8912d..dfeda13 100644 (file)
--- a/fs/debugfs/file.c
+++ b/fs/debugfs/file.c
@@ -721,12 +721,11 @@ DEFINE_DEBUGFS_ATTRIBUTE(fops_size_t_wo, NULL, debugfs_size_t_set, "%llu\n");
  * @value: a pointer to the variable that the file should read to and write
  *         from.
  */
-struct dentry *debugfs_create_size_t(const char *name, umode_t mode,
-                                    struct dentry *parent, size_t *value)
+void debugfs_create_size_t(const char *name, umode_t mode,
+                          struct dentry *parent, size_t *value)
 {
-       return debugfs_create_mode_unsafe(name, mode, parent, value,
-                                       &fops_size_t, &fops_size_t_ro,
-                                       &fops_size_t_wo);
+       debugfs_create_mode_unsafe(name, mode, parent, value, &fops_size_t,
+                                  &fops_size_t_ro, &fops_size_t_wo);
 }
 EXPORT_SYMBOL_GPL(debugfs_create_size_t);
 

diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h
index b3bed4d..1d859bc 100644 (file)
--- a/include/linux/debugfs.h
+++ b/include/linux/debugfs.h
@@ -115,8 +115,8 @@ struct dentry *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);
-struct dentry *debugfs_create_size_t(const char *name, umode_t mode,
-                                    struct dentry *parent, size_t *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,
                                     struct dentry *parent, atomic_t *value);
 struct dentry *debugfs_create_bool(const char *name, umode_t mode,
@@ -296,12 +296,9 @@ static inline struct dentry *debugfs_create_x64(const char *name, umode_t mode,
        return ERR_PTR(-ENODEV);
 }
 
-static inline struct dentry *debugfs_create_size_t(const char *name, umode_t mode,
-                                    struct dentry *parent,
-                                    size_t *value)
-{
-       return ERR_PTR(-ENODEV);
-}
+static inline void debugfs_create_size_t(const char *name, umode_t mode,
+                                        struct dentry *parent, size_t *value)
+{ }
 
 static inline struct dentry *debugfs_create_atomic_t(const char *name, umode_t mode,
                                     struct dentry *parent, atomic_t *value)