netdev - Re: [PATCH 7/8] net: bridge: fix sign bug

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Message-ID: <20100715122144.0f2cf5cf@nehalam>
Date:	Thu, 15 Jul 2010 12:21:44 -0700
From:	Stephen Hemminger <shemminger@...ux-foundation.org>
To:	Kulikov Vasiliy <segooon@...il.com>
Cc:	kernel-janitors@...r.kernel.org,
	"David S. Miller" <davem@...emloft.net>,
	Herbert Xu <herbert@...dor.hengli.com.au>,
	YOSHIFUJI Hideaki <yoshfuji@...ux-ipv6.org>,
	Eric Dumazet <eric.dumazet@...il.com>,
	bridge@...ts.linux-foundation.org, netdev@...r.kernel.org
Subject: Re: [PATCH 7/8] net: bridge: fix sign bug

On Thu, 15 Jul 2010 22:47:33 +0400
Kulikov Vasiliy <segooon@...il.com> wrote:

> ipv6_skip_exthdr() can return error code that is below zero.
> 'offset' is unsigned, so it makes no sense.
> ipv6_skip_exthdr() returns 'int' so we can painlessly change type of
> offset to int.
> 
> Signed-off-by: Kulikov Vasiliy <segooon@...il.com>
> ---
>  net/bridge/br_multicast.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
> index 27ae946..85afcda 100644
> --- a/net/bridge/br_multicast.c
> +++ b/net/bridge/br_multicast.c
> @@ -1435,7 +1435,7 @@ static int br_multicast_ipv6_rcv(struct net_bridge *br,
>  	struct icmp6hdr *icmp6h;
>  	u8 nexthdr;
>  	unsigned len;
> -	unsigned offset;
> +	int offset;
>  	int err;
>  
>  	if (!pskb_may_pull(skb, sizeof(*ip6h)))

Acked-by: Stephen Hemminger <shemminger@...tta.com>

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