netdev - Re: [PATCH v2] ipv6: Change skb->data before using icmpv6

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Date:	Thu, 13 Dec 2012 12:59:11 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	djduanjiong@...il.com
Cc:	steffen.klassert@...unet.com, netdev@...r.kernel.org
Subject: Re: [PATCH v2] ipv6: Change skb->data before using icmpv6_notify()
 to propagate redirect

From: Duan Jiong <djduanjiong@...il.com>
Date: Thu, 13 Dec 2012 19:21:37 +0800

> +	if (!ndisc_parse_options(msg->opt, ndoptlen, &ndopts)) {
> +		ND_PRINTK(2, warn,
> +			  "Redirect: invalid ND options\n");

Do not add more uses of such baroque kernel logging mechanisms.

> +	if (!ndopts.nd_opts_rh) {
> +		return;
> +	}

Single statement basic blocks should never be surrounded by
curly braces, they just waste lines.

> +	hdr = (u8 *)ndopts.nd_opts_rh;

(u8 *)[SPACE]ndopts...

> +	if(!pskb_pull(skb, hdr - skb_transport_header(skb))) {

if[SPACE](...
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