cifs: Make extract_sharename function public

Move the function to misc.c
Signed-off-by: NSamuel Cabrero <scabrero@suse.de>
Reviewed-by: NAurelien Aptel <aaptel@suse.com>
Signed-off-by: NSteve French <stfrench@microsoft.com>

fs/cifs/cache.c

@@ -53,30 +53,6 @@ const struct fscache_cookie_def cifs_fscache_server_index_def = {
 	.type = FSCACHE_COOKIE_TYPE_INDEX,
 };
 
-char *extract_sharename(const char *treename)
-{
-	const char *src;
-	char *delim, *dst;
-	int len;
-
-	/* skip double chars at the beginning */
-	src = treename + 2;
-
-	/* share name is always preceded by '\\' now */
-	delim = strchr(src, '\\');
-	if (!delim)
-		return ERR_PTR(-EINVAL);
-	delim++;
-	len = strlen(delim);
-
-	/* caller has to free the memory */
-	dst = kstrndup(delim, len, GFP_KERNEL);
-	if (!dst)
-		return ERR_PTR(-ENOMEM);
-
-	return dst;
-}
-
 static enum
 fscache_checkaux cifs_fscache_super_check_aux(void *cookie_netfs_data,
 					      const void *data,

fs/cifs/cifsproto.h

@@ -618,6 +618,7 @@ struct super_block *cifs_get_tcp_super(struct TCP_Server_Info *server);
 void cifs_put_tcp_super(struct super_block *sb);
 int update_super_prepath(struct cifs_tcon *tcon, char *prefix);
 char *extract_hostname(const char *unc);
+char *extract_sharename(const char *unc);
 
 #ifdef CONFIG_CIFS_DFS_UPCALL
 static inline int get_dfs_path(const unsigned int xid, struct cifs_ses *ses,

fs/cifs/fscache.c

@@ -22,6 +22,7 @@
 #include "cifsglob.h"
 #include "cifs_debug.h"
 #include "cifs_fs_sb.h"
+#include "cifsproto.h"
 
 /*
  * Key layout of CIFS server cache index object

fs/cifs/fscache.h

@@ -57,7 +57,6 @@ extern const struct fscache_cookie_def cifs_fscache_inode_object_def;
 
 extern int cifs_fscache_register(void);
 extern void cifs_fscache_unregister(void);
-extern char *extract_sharename(const char *);
 
 /*
  * fscache.c

fs/cifs/misc.c

@@ -1227,3 +1227,27 @@ char *extract_hostname(const char *unc)
 
 	return dst;
 }
+
+char *extract_sharename(const char *unc)
+{
+	const char *src;
+	char *delim, *dst;
+	int len;
+
+	/* skip double chars at the beginning */
+	src = unc + 2;
+
+	/* share name is always preceded by '\\' now */
+	delim = strchr(src, '\\');
+	if (!delim)
+		return ERR_PTR(-EINVAL);
+	delim++;
+	len = strlen(delim);
+
+	/* caller has to free the memory */
+	dst = kstrndup(delim, len, GFP_KERNEL);
+	if (!dst)
+		return ERR_PTR(-ENOMEM);
+
+	return dst;
+}