ipv4: Simplify iph->daddr overwrite in ip_options_rcv_srr().

We already copy the 4-byte nexthop from the options block into
local variable "nexthop" for the route lookup.

Re-use that variable instead of memcpy()'ing again when assigning
to iph->daddr after the route lookup succeeds.

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

diff --git a/net/ipv4/ip_options.c b/net/ipv4/ip_options.c
index e82c304..c5c2619 100644 (file)
--- a/net/ipv4/ip_options.c
+++ b/net/ipv4/ip_options.c
@@ -635,7 +635,7 @@ int ip_options_rcv_srr(struct sk_buff *skb)
                if (rt2->rt_type != RTN_LOCAL)
                        break;
                /* Superfast 8) loopback forward */
-               memcpy(&iph->daddr, &optptr[srrptr-1], 4);
+               iph->daddr = nexthop;
                opt->is_changed = 1;
        }
        if (srrptr <= srrspace) {