From: David S. Miller <davem@davemloft.net>
Date: Fri, 6 May 2011 22:06:01 +0000 (-0700)
Subject: ipv4: Initialize on-stack cork more efficiently.
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=b80d72261aec5e763a76497eba5fddc84833a154;p=deliverable%2Flinux.git

ipv4: Initialize on-stack cork more efficiently.

ip_setup_cork() explicitly initializes every member of
inet_cork except flags, addr, and opt.  So we can simply
set those three members to zero instead of using a
memset() via an empty struct assignment.

Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
---

diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index eb0647a2f073..5f5fe4f742b9 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -1408,7 +1408,7 @@ struct sk_buff *ip_make_skb(struct sock *sk,
 			    struct ipcm_cookie *ipc, struct rtable **rtp,
 			    unsigned int flags)
 {
-	struct inet_cork cork = {};
+	struct inet_cork cork;
 	struct sk_buff_head queue;
 	int err;
 
@@ -1417,6 +1417,9 @@ struct sk_buff *ip_make_skb(struct sock *sk,
 
 	__skb_queue_head_init(&queue);
 
+	cork.flags = 0;
+	cork.addr = 0;
+	cork.opt = 0;
 	err = ip_setup_cork(sk, &cork, ipc, rtp);
 	if (err)
 		return ERR_PTR(err);