diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c
index efb4990..5ec2f31 100644
--- a/drivers/dma-buf/dma-buf.c
+++ b/drivers/dma-buf/dma-buf.c
@@ -53,7 +53,7 @@ static char *dmabuffs_dname(struct dentry *dentry, char *buffer, int buflen)
 		ret = strlcpy(name, dmabuf->name, DMA_BUF_NAME_LEN);
 	spin_unlock(&dmabuf->name_lock);
 
-	return dynamic_dname(dentry, buffer, buflen, "/%s:%s",
+	return dynamic_dname(buffer, buflen, "/%s:%s",
 			     dentry->d_name.name, ret > 0 ? name : "");
 }
 
diff --git a/fs/anon_inodes.c b/fs/anon_inodes.c
index e0c3e33..24192a7 100644
--- a/fs/anon_inodes.c
+++ b/fs/anon_inodes.c
@@ -32,7 +32,7 @@ static struct inode *anon_inode_inode;
  */
 static char *anon_inodefs_dname(struct dentry *dentry, char *buffer, int buflen)
 {
-	return dynamic_dname(dentry, buffer, buflen, "anon_inode:%s",
+	return dynamic_dname(buffer, buflen, "anon_inode:%s",
 				dentry->d_name.name);
 }
 
diff --git a/fs/d_path.c b/fs/d_path.c
index e4e0eba..ce8d9d4 100644
--- a/fs/d_path.c
+++ b/fs/d_path.c
@@ -297,8 +297,7 @@ EXPORT_SYMBOL(d_path);
 /*
  * Helper function for dentry_operations.d_dname() members
  */
-char *dynamic_dname(struct dentry *dentry, char *buffer, int buflen,
-			const char *fmt, ...)
+char *dynamic_dname(char *buffer, int buflen, const char *fmt, ...)
 {
 	va_list args;
 	char temp[64];
diff --git a/fs/nsfs.c b/fs/nsfs.c
index 800c1d0..3506f60 100644
--- a/fs/nsfs.c
+++ b/fs/nsfs.c
@@ -28,7 +28,7 @@ static char *ns_dname(struct dentry *dentry, char *buffer, int buflen)
 	struct inode *inode = d_inode(dentry);
 	const struct proc_ns_operations *ns_ops = dentry->d_fsdata;
 
-	return dynamic_dname(dentry, buffer, buflen, "%s:[%lu]",
+	return dynamic_dname(buffer, buflen, "%s:[%lu]",
 		ns_ops->name, inode->i_ino);
 }
 
diff --git a/fs/pipe.c b/fs/pipe.c
index 74ae9fa..42c7ff4 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -860,7 +860,7 @@ static struct vfsmount *pipe_mnt __read_mostly;
  */
 static char *pipefs_dname(struct dentry *dentry, char *buffer, int buflen)
 {
-	return dynamic_dname(dentry, buffer, buflen, "pipe:[%lu]",
+	return dynamic_dname(buffer, buflen, "pipe:[%lu]",
 				d_inode(dentry)->i_ino);
 }
 
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index 92c78ed..54d4651 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -287,8 +287,8 @@ static inline unsigned d_count(const struct dentry *dentry)
 /*
  * helper function for dentry_operations.d_dname() members
  */
-extern __printf(4, 5)
-char *dynamic_dname(struct dentry *, char *, int, const char *, ...);
+extern __printf(3, 4)
+char *dynamic_dname(char *, int, const char *, ...);
 
 extern char *__d_path(const struct path *, const struct path *, char *, int);
 extern char *d_absolute_path(const struct path *, char *, int);
diff --git a/net/socket.c b/net/socket.c
index 9b27c5e..d183e83 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -355,7 +355,7 @@ static const struct super_operations sockfs_ops = {
  */
 static char *sockfs_dname(struct dentry *dentry, char *buffer, int buflen)
 {
-	return dynamic_dname(dentry, buffer, buflen, "socket:[%lu]",
+	return dynamic_dname(buffer, buflen, "socket:[%lu]",
 				d_inode(dentry)->i_ino);
 }