diff --git a/net/core/utils.c b/net/core/utils.c
index 34459c4..8031eb5 100644
--- a/net/core/utils.c
+++ b/net/core/utils.c
@@ -91,17 +91,6 @@
 #define IN6PTON_NULL		0x20000000	/* first/tail */
 #define IN6PTON_UNKNOWN		0x40000000
 
-static inline int digit2bin(char c, int delim)
-{
-	if (c == delim || c == '\0')
-		return IN6PTON_DELIM;
-	if (c == '.')
-		return IN6PTON_DOT;
-	if (c >= '0' && c <= '9')
-		return (IN6PTON_DIGIT | (c - '0'));
-	return IN6PTON_UNKNOWN;
-}
-
 static inline int xdigit2bin(char c, int delim)
 {
 	if (c == delim || c == '\0')