From: David Ahern <dsa@cumulusnetworks.com>
Date: Thu, 26 Jan 2017 22:08:36 +0000 (-0800)
Subject: net: ipv6: remove skb_reserve in getroute
X-Git-Tag: v4.11-rc1~124^2~309
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=3b7b2b0acdbf9ffe4d3a7915e59e6127988b05db;p=linux.git

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 4b1f0f98a0e9..74bb1190800e 100644
--- 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,