Re: [PATCH net-next] ipcomp: Convert struct xt_ipcomp spis into 16bits

[Pablo Neira Ayuso <pablo@netfilter.org>]

On Mon, Jan 20, 2014 at 09:55:42AM +0800, Fan Du wrote:
> On 2014年01月18日 20:24, Pablo Neira Ayuso wrote:
> >Didn't you find any way to fix this without change the layout of
> >xt_ipcomp?
> 
> My bad for not catching this in the initial ipcomp version.
> It would be easier to just use ntohs here to ease sparse checking.
> 
> 
> From dbf796e63d600256fd40000669b83227ddccebc4 Mon Sep 17 00:00:00 2001
> From: Fan Du <fan.du@windriver.com>
> Date: Mon, 20 Jan 2014 09:42:12 +0800
> Subject: [PATCHv2 net-next] ipcomp: Use ntohs to ease sparse warning
> 
> 0-DAY kernel build testing backend reported:
> 
> sparse warnings: (new ones prefixed by >>)
> 
> >> >> net/netfilter/xt_ipcomp.c:63:26: sparse: restricted __be16 degrades to integer
> >> >> net/netfilter/xt_ipcomp.c:63:26: sparse: cast to restricted __be32
> 
> Fix this by using ntohs without shifting.
> 
> Tested with: make C=1 CF=-D__CHECK_ENDIAN__

Applied to nf-next, thanks.