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

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Message-ID: <1304721894.11874.28.camel@Joe-Laptop>
Date:	Fri, 06 May 2011 15:44:54 -0700
From:	Joe Perches <joe@...ches.com>
To:	David Miller <davem@...emloft.net>
Cc:	netdev@...r.kernel.org, herbert@...dor.apana.org.au,
	eric.dumazet@...il.com
Subject: Re: [PATCH 2/2] ipv4: Initialize on-stack cork more efficiently.

On Fri, 2011-05-06 at 15:26 -0700, David Miller wrote:
> 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>
> diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
[]
> @@ -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;

	cork.opt = NULL;

>  	err = ip_setup_cork(sk, &cork, ipc, rtp);
>  	if (err)
>  		return ERR_PTR(err);

Perhaps it'd be better to move the initialization
of all cork fields to ip_setup_cork.


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