net: ipv6: remove skb_reserve in getroute

Remove skb_reserve and skb_reset_mac_header from inet6_rtm_getroute. The
allocated skb is not passed through the routing engine (like it is for
IPv4) and has not since the beginning of git time.

Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 4b1f0f9..74bb119 100644 (file)
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -3416,12 +3416,6 @@ static int inet6_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh)
                goto errout;
        }
 
-       /* Reserve room for dummy headers, this skb can pass
-          through good chunk of routing engine.
-        */
-       skb_reset_mac_header(skb);
-       skb_reserve(skb, MAX_HEADER + sizeof(struct ipv6hdr));
-
        skb_dst_set(skb, &rt->dst);
 
        err = rt6_fill_node(net, skb, rt, &fl6.daddr, &fl6.saddr, iif,