From: Li RongQing <roy.qing.li@gmail.com>
Date: Mon, 23 Dec 2013 01:32:38 +0000 (+0800)
Subject: ipv6: unneccessary to get address prefix in addrconf_get_prefix_route
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=46306b49349ba9c4e5bdb9cb3c4e8b50192106bf;p=openwrt%2Fstaging%2Fblogic.git

ipv6: unneccessary to get address prefix in addrconf_get_prefix_route

Since addrconf_get_prefix_route inputs the address prefix to fib6_locate,
which does not uses the data which is out of the prefix_len length,
so do not need to use ipv6_addr_prefix to get address prefix.

Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index cd2d7d0fb558..9418ca375132 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -995,12 +995,9 @@ static void ipv6_del_addr(struct inet6_ifaddr *ifp)
 	 * --yoshfuji
 	 */
 	if ((ifp->flags & IFA_F_PERMANENT) && onlink < 1) {
-		struct in6_addr prefix;
 		struct rt6_info *rt;
 
-		ipv6_addr_prefix(&prefix, &ifp->addr, ifp->prefix_len);
-
-		rt = addrconf_get_prefix_route(&prefix,
+		rt = addrconf_get_prefix_route(&ifp->addr,
 					       ifp->prefix_len,
 					       ifp->idev->dev,
 					       0, RTF_GATEWAY | RTF_DEFAULT);