zebra: Move sin6_masklen to earlier in the file

[mirror_frr.git] / zebra / rt_socket.c

diff --git a/zebra/rt_socket.c b/zebra/rt_socket.c
index 38c362a19313b9c4153a4b5a2188465b996875b0..d5a4fcb116b482a3e1295552ff58a726830aa3bc 100644 (file)
--- a/zebra/rt_socket.c
+++ b/zebra/rt_socket.c
@@ -89,6 +89,30 @@ static int kernel_rtm_add_labels(struct mpls_label_stack *nh_label,
 }
 #endif
 
+#ifdef SIN6_LEN
+/* Calculate sin6_len value for netmask socket value. */
+static int sin6_masklen(struct in6_addr mask)
+{
+       struct sockaddr_in6 sin6;
+       char *p, *lim;
+       int len;
+
+       if (IN6_IS_ADDR_UNSPECIFIED(&mask))
+               return sizeof(long);
+
+       sin6.sin6_addr = mask;
+       len = sizeof(struct sockaddr_in6);
+
+       lim = (char *)&sin6.sin6_addr;
+       p = lim + sizeof(sin6.sin6_addr);
+
+       while (*--p == 0 && p >= lim)
+               len--;
+
+       return len;
+}
+#endif /* SIN6_LEN */
+
 /* Interface between zebra message and rtm message. */
 static int kernel_rtm_ipv4(int cmd, const struct prefix *p,
                           const struct nexthop_group *ng, uint32_t metric)
@@ -253,30 +277,6 @@ static int kernel_rtm_ipv4(int cmd, const struct prefix *p,
        return 0; /*XXX*/
 }
 
-#ifdef SIN6_LEN
-/* Calculate sin6_len value for netmask socket value. */
-static int sin6_masklen(struct in6_addr mask)
-{
-       struct sockaddr_in6 sin6;
-       char *p, *lim;
-       int len;
-
-       if (IN6_IS_ADDR_UNSPECIFIED(&mask))
-               return sizeof(long);
-
-       sin6.sin6_addr = mask;
-       len = sizeof(struct sockaddr_in6);
-
-       lim = (char *)&sin6.sin6_addr;
-       p = lim + sizeof(sin6.sin6_addr);
-
-       while (*--p == 0 && p >= lim)
-               len--;
-
-       return len;
-}
-#endif /* SIN6_LEN */
-
 /* Interface between zebra message and rtm message. */
 static int kernel_rtm_ipv6(int cmd, const struct prefix *p,
                           const struct nexthop_group *ng, uint32_t metric)