diff --git a/fs/smb/server/unicode.c b/fs/smb/server/unicode.c
index a0db699ddafd..9ae676906ed3 100644
--- a/fs/smb/server/unicode.c
+++ b/fs/smb/server/unicode.c
@@ -113,24 +113,6 @@ cp_convert:
 	goto out;
 }
 
-/*
- * is_char_allowed() - check for valid character
- * @ch:		input character to be checked
- *
- * Return:	1 if char is allowed, otherwise 0
- */
-static inline int is_char_allowed(char *ch)
-{
-	/* check for control chars, wildcards etc. */
-	if (!(*ch & 0x80) &&
-	    (*ch <= 0x1f ||
-	     *ch == '?' || *ch == '"' || *ch == '<' ||
-	     *ch == '>' || *ch == '|'))
-		return 0;
-
-	return 1;
-}
-
 /*
  * smb_from_utf16() - convert utf16le string to local charset
  * @to:		destination buffer