netdev - Re: [PATCH 2/2] ipv4: Initialize on-stack cork more efficiently.

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Date:	Sat, 07 May 2011 00:35:17 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	netdev@...r.kernel.org, herbert@...dor.apana.org.au
Subject: Re: [PATCH 2/2] ipv4: Initialize on-stack cork more efficiently.

Le vendredi 06 mai 2011 à 15:26 -0700, David Miller a écrit :
> 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@...emloft.net>
> ---
>  net/ipv4/ip_output.c |    5 ++++-
>  1 files changed, 4 insertions(+), 1 deletions(-)
> 
> diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
> index eb0647a..5f5fe4f 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);

Very nice, thanks for finishing this stuff :)

Acked-by: Eric Dumazet <eric.dumazet@...il.com>


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