sysfs, kernfs: remove sysfs_add_one()

sysfs_add_one() is a wrapper around __sysfs_add_one() which prints out
duplicate name warning if __sysfs_add_one() fails with -EEXIST.  The
previous kernfs conversions moved all dup warnings to sysfs interface
functions and sysfs_add_one() doesn't have any user left.

Remove sysfs_add_one() and update __sysfs_add_one() to take its name.

This patch doesn't make any functional changes.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

fs/sysfs/dir.c

@@ -395,7 +395,7 @@ void sysfs_addrm_start(struct sysfs_addrm_cxt *acxt)
 }
 
 /**
- *	__sysfs_add_one - add sysfs_dirent to parent without warning
+ *	sysfs_add_one - add sysfs_dirent to parent without warning
  *	@acxt: addrm context to use
  *	@sd: sysfs_dirent to be added
  *	@parent_sd: the parent sysfs_dirent to add @sd to
@@ -415,8 +415,8 @@ void sysfs_addrm_start(struct sysfs_addrm_cxt *acxt)
  *	0 on success, -EEXIST if entry with the given name already
  *	exists.
  */
-int __sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd,
-		    struct sysfs_dirent *parent_sd)
+int sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd,
+		  struct sysfs_dirent *parent_sd)
 {
 	bool has_ns = parent_sd->s_flags & SYSFS_FLAG_NS;
 	struct sysfs_inode_attrs *ps_iattr;
@@ -487,39 +487,6 @@ void sysfs_warn_dup(struct sysfs_dirent *parent, const char *name)
 	kfree(path);
 }
 
-/**
- *	sysfs_add_one - add sysfs_dirent to parent
- *	@acxt: addrm context to use
- *	@sd: sysfs_dirent to be added
- *	@parent_sd: the parent sysfs_dirent to add @sd to
- *
- *	Get @parent_sd and set @sd->s_parent to it and increment nlink of
- *	the parent inode if @sd is a directory and link into the children
- *	list of the parent.
- *
- *	This function should be called between calls to
- *	sysfs_addrm_start() and sysfs_addrm_finish() and should be
- *	passed the same @acxt as passed to sysfs_addrm_start().
- *
- *	LOCKING:
- *	Determined by sysfs_addrm_start().
- *
- *	RETURNS:
- *	0 on success, -EEXIST if entry with the given name already
- *	exists.
- */
-int sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd,
-		  struct sysfs_dirent *parent_sd)
-{
-	int ret;
-
-	ret = __sysfs_add_one(acxt, sd, parent_sd);
-
-	if (ret == -EEXIST)
-		sysfs_warn_dup(parent_sd, sd->s_name);
-	return ret;
-}
-
 /**
  *	sysfs_remove_one - remove sysfs_dirent from parent
  *	@acxt: addrm context to use
@@ -694,7 +661,7 @@ struct sysfs_dirent *kernfs_create_dir_ns(struct sysfs_dirent *parent,
 
 	/* link in */
 	sysfs_addrm_start(&acxt);
-	rc = __sysfs_add_one(&acxt, sd, parent);
+	rc = sysfs_add_one(&acxt, sd, parent);
 	sysfs_addrm_finish(&acxt);
 
 	if (!rc)

fs/sysfs/file.c

@@ -1007,7 +1007,7 @@ struct sysfs_dirent *kernfs_create_file_ns(struct sysfs_dirent *parent,
 		sd->s_flags |= SYSFS_FLAG_HAS_MMAP;
 
 	sysfs_addrm_start(&acxt);
-	rc = __sysfs_add_one(&acxt, sd, parent);
+	rc = sysfs_add_one(&acxt, sd, parent);
 	sysfs_addrm_finish(&acxt);
 
 	if (rc) {

fs/sysfs/symlink.c

@@ -47,7 +47,7 @@ struct sysfs_dirent *kernfs_create_link(struct sysfs_dirent *parent,
 	sysfs_get(target);	/* ref owned by symlink */
 
 	sysfs_addrm_start(&acxt);
-	error = __sysfs_add_one(&acxt, sd, parent);
+	error = sysfs_add_one(&acxt, sd, parent);
 	sysfs_addrm_finish(&acxt);
 
 	if (!error)

fs/sysfs/sysfs.h

@@ -167,8 +167,6 @@ struct sysfs_dirent *sysfs_get_active(struct sysfs_dirent *sd);
 void sysfs_put_active(struct sysfs_dirent *sd);
 void sysfs_addrm_start(struct sysfs_addrm_cxt *acxt);
 void sysfs_warn_dup(struct sysfs_dirent *parent, const char *name);
-int __sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd,
-		    struct sysfs_dirent *parent_sd);
 int sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd,
 		  struct sysfs_dirent *parent_sd);
 void sysfs_addrm_finish(struct sysfs_addrm_cxt *acxt);