netdev - Re: [PATCH net-next 00/11] IPv6: rt->n (neighbour in rt6

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Date:	Thu, 17 Jan 2013 15:37:53 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	yoshfuji@...ux-ipv6.org
Cc:	netdev@...r.kernel.org, xiyou.wangcong@...il.com
Subject: Re: [PATCH net-next 00/11] IPv6: rt->n (neighbour in rt6_info)
 removal (TAKE 3)

From: YOSHIFUJI Hideaki <yoshfuji@...ux-ipv6.org>
Date: Fri, 18 Jan 2013 02:41:41 +0900

> This is "TAKE 3" of neighbour removal from rt6_info.
> 
> 2->3:
> - Removed "icmp6_dst_alloc() removal" patch.
>   This is nothing to do with this series.
> - Removed several unused variables, ifdefs, BUG_ONs.
> - Handled several comments from Cong Wang.
> - Reordered.

This series is almost perfect, great work.

In ip6_output you need to accomodate the fact that __neigh_create()
returns error pointers so it is not valid to simply use a NULL test on
'neigh'.

You'll need to use IS_ERR().  'neigh' can never be NULL here, it is
either a valid non-NULL pointer or a return value from
__neigh_create().
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