ipv4: icmp: Eliminate remaining uses of rt->rt_src

On input packets, rt->rt_src always equals ip_hdr(skb)->saddr

Anything that mangles or otherwise changes the IP header must
relookup the route found at skb_rtable().  Therefore this
invariant must always hold true.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 3 deletions

diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index 853a670f6df6..3314394f0aab 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -345,7 +345,7 @@ static void icmp_reply(struct icmp_bxm *icmp_param, struct sk_buff *skb)
         icmp_param->data.icmph.checksum = 0;
 
         inet->tos = ip_hdr(skb)->tos;
-        daddr = ipc.addr = rt->rt_src;
+        daddr = ipc.addr = ip_hdr(skb)->saddr;
         ipc.opt = NULL;
         ipc.tx_flags = 0;
         if (icmp_param->replyopts.opt.opt.optlen) {
@@ -930,12 +930,12 @@ static void icmp_address_reply(struct sk_buff *skb)
                 BUG_ON(mp == NULL);
                 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
                         if (*mp == ifa->ifa_mask &&
-                            inet_ifa_match(rt->rt_src, ifa))
+                            inet_ifa_match(ip_hdr(skb)->saddr, ifa))
                                 break;
                 }
                 if (!ifa && net_ratelimit()) {
                         printk(KERN_INFO "Wrong address mask %pI4 from %s/%pI4\n",
-                               mp, dev->name, &rt->rt_src);
+                               mp, dev->name, &ip_hdr(skb)->saddr);
                 }
         }
 }