cifs: remove the devname argument to cifs_compose_mount_options

none of the callers use this argument any more.
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>

fs/cifs/cifs_dfs_ref.c

@@ -124,7 +124,6 @@ cifs_build_devname(char *nodename, const char *prepath)
  * @sb_mountdata:	parent/root DFS mount options (template)
  * @fullpath:		full path in UNC format
  * @ref:		optional server's referral
- * @devname:		optional pointer for saving device name
  *
  * creates mount options for submount based on template options sb_mountdata
  * and replacing unc,ip,prefixpath options with ones we've got form ref_unc.
@@ -134,8 +133,7 @@ cifs_build_devname(char *nodename, const char *prepath)
  */
 char *cifs_compose_mount_options(const char *sb_mountdata,
 				   const char *fullpath,
-				   const struct dfs_info3_param *ref,
-				   char **devname)
+				   const struct dfs_info3_param *ref)
 {
 	int rc;
 	char *name;
@@ -232,9 +230,6 @@ char *cifs_compose_mount_options(const char *sb_mountdata,
 	strcat(mountdata, "ip=");
 	strcat(mountdata, srvIP);
 
-	if (devname)
-		*devname = name;
-	else
 	kfree(name);
 
 	/*cifs_dbg(FYI, "%s: parent mountdata: %s\n", __func__, sb_mountdata);*/
@@ -281,7 +276,7 @@ static struct vfsmount *cifs_dfs_do_mount(struct dentry *mntpt,
 
 	/* strip first '\' from fullpath */
 	mountdata = cifs_compose_mount_options(cifs_sb->mountdata,
-					       fullpath + 1, NULL, NULL);
+					       fullpath + 1, NULL);
 	if (IS_ERR(mountdata)) {
 		kfree(devname);
 		return (struct vfsmount *)mountdata;

fs/cifs/cifsproto.h

@@ -78,8 +78,7 @@ extern char *cifs_build_path_to_root(struct smb3_fs_context *ctx,
 				     int add_treename);
 extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
 extern char *cifs_compose_mount_options(const char *sb_mountdata,
-		const char *fullpath, const struct dfs_info3_param *ref,
-		char **devname);
+		const char *fullpath, const struct dfs_info3_param *ref);
 /* extern void renew_parental_timestamps(struct dentry *direntry);*/
 extern struct mid_q_entry *AllocMidQEntry(const struct smb_hdr *smb_buffer,
 					struct TCP_Server_Info *server);

fs/cifs/connect.c

@@ -3032,11 +3032,8 @@ expand_dfs_referral(const unsigned int xid, struct cifs_ses *ses,
 	rc = dfs_cache_find(xid, ses, cifs_sb->local_nls, cifs_remap(cifs_sb),
 			    ref_path, &referral, NULL);
 	if (!rc) {
-		char *fake_devname = NULL;
-
 		mdata = cifs_compose_mount_options(cifs_sb->mountdata,
-						   full_path + 1, &referral,
-						   &fake_devname);
+						   full_path + 1, &referral);
 		free_dfs_info_param(&referral);
 
 		if (IS_ERR(mdata)) {
@@ -3046,7 +3043,6 @@ expand_dfs_referral(const unsigned int xid, struct cifs_ses *ses,
 			cifs_cleanup_volume_info_contents(ctx);
 			rc = cifs_setup_volume_info(ctx);
 		}
-		kfree(fake_devname);
 		kfree(cifs_sb->mountdata);
 		cifs_sb->mountdata = mdata;
 	}
@@ -3098,7 +3094,7 @@ static int setup_dfs_tgt_conn(const char *path, const char *full_path,
 {
 	int rc;
 	struct dfs_info3_param ref = {0};
-	char *mdata = NULL, *fake_devname = NULL;
+	char *mdata = NULL;
 	struct smb3_fs_context fake_ctx = {NULL};
 
 	cifs_dbg(FYI, "%s: dfs path: %s\n", __func__, path);
@@ -3107,7 +3103,7 @@ static int setup_dfs_tgt_conn(const char *path, const char *full_path,
 	if (rc)
 		return rc;
 
-	mdata = cifs_compose_mount_options(cifs_sb->mountdata, full_path + 1, &ref, &fake_devname);
+	mdata = cifs_compose_mount_options(cifs_sb->mountdata, full_path + 1, &ref);
 	free_dfs_info_param(&ref);
 
 	if (IS_ERR(mdata)) {
@@ -3117,7 +3113,6 @@ static int setup_dfs_tgt_conn(const char *path, const char *full_path,
 		rc = cifs_setup_volume_info(&fake_ctx);
 
 	kfree(mdata);
-	kfree(fake_devname);
 
 	if (!rc) {
 		/*

fs/cifs/dfs_cache.c

@@ -1416,7 +1416,7 @@ static struct cifs_ses *find_root_ses(struct vol_info *vi,
 	int rc;
 	struct cache_entry *ce;
 	struct dfs_info3_param ref = {0};
-	char *mdata = NULL, *devname = NULL;
+	char *mdata = NULL;
 	struct TCP_Server_Info *server;
 	struct cifs_ses *ses;
 	struct smb3_fs_context ctx = {NULL};
@@ -1443,8 +1443,7 @@ static struct cifs_ses *find_root_ses(struct vol_info *vi,
 
 	up_read(&htable_rw_lock);
 
-	mdata = cifs_compose_mount_options(vi->mntdata, rpath, &ref,
-					   &devname);
+	mdata = cifs_compose_mount_options(vi->mntdata, rpath, &ref);
 	free_dfs_info_param(&ref);
 
 	if (IS_ERR(mdata)) {
@@ -1454,7 +1453,6 @@ static struct cifs_ses *find_root_ses(struct vol_info *vi,
 	}
 
 	rc = cifs_setup_volume_info(&ctx);
-	kfree(devname);
 
 	if (rc) {
 		ses = ERR_PTR(rc);