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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Subject: [PATCH 4/8] debugfs: remove return value of debugfs_create_size_t()
Date: Fri, 11 Oct 2019 15:29:27 +0200	[thread overview]
Message-ID: <20191011132931.1186197-4-gregkh@linuxfoundation.org> (raw)
In-Reply-To: <20191011132931.1186197-1-gregkh@linuxfoundation.org>

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>
---
 Documentation/filesystems/debugfs.txt |  5 ++---
 fs/debugfs/file.c                     |  9 ++++-----
 include/linux/debugfs.h               | 13 +++++--------
 3 files changed, 11 insertions(+), 16 deletions(-)

diff --git a/Documentation/filesystems/debugfs.txt b/Documentation/filesystems/debugfs.txt
index 1b299ae4904d..55a5da08c71c 100644
--- 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 4c8912d7d34c..dfeda13023b3 100644
--- 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 b3bed4d61733..1d859bc657bd 100644
--- 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)
-- 
2.23.0


  parent reply	other threads:[~2019-10-11 13:29 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-11 13:29 [PATCH 1/8] debugfs: remove return value of debugfs_create_u8() Greg Kroah-Hartman
2019-10-11 13:29 ` [PATCH 2/8] debugfs: remove return value of debugfs_create_u16() Greg Kroah-Hartman
2019-10-11 13:29 ` [PATCH 3/8] debugfs: remove return value of debugfs_create_u64() Greg Kroah-Hartman
2019-10-11 13:29 ` Greg Kroah-Hartman [this message]
2019-10-11 13:29 ` [PATCH 5/8] debugfs: remove return value of debugfs_create_x8() Greg Kroah-Hartman
2019-10-11 13:29 ` [PATCH 6/8] debugfs: remove return value of debugfs_create_x16() Greg Kroah-Hartman
2019-10-11 13:29 ` [PATCH 7/8] debugfs: remove return value of debugfs_create_x32() Greg Kroah-Hartman
2019-10-11 13:29 ` [PATCH 8/8] debugfs: remove return value of debugfs_create_x64() Greg Kroah-Hartman

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