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>

1 files changed, 4 insertions, 1 deletions

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);