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 eb0647a..5f5fe4f 100644 (file)
--- 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);