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Date:	Fri, 21 Dec 2007 23:11:11 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	Masahide NAKAMURA <nakam@...ux-ipv6.org>
Cc:	davem@...emloft.net, netdev@...r.kernel.org,
	usagi-core@...ux-ipv6.org
Subject: Re: [XFRM]: Fix outbound statistics.

On Fri, Dec 21, 2007 at 11:25:00PM +0900, Masahide NAKAMURA wrote:
>
>  	do {
>  		err = xfrm_state_check_space(x, skb);
> -		if (err)
> +		if (err) {
> +			XFRM_INC_STATS(LINUX_MIB_XFRMOUTERROR);
>  			goto error_nolock;
> +		}
>  
>  		err = x->outer_mode->output(x, skb);
> -		if (err)
> +		if (err) {
> +			XFRM_INC_STATS(LINUX_MIB_XFRMOUTSTATEMODEERROR);

BTW, none of our existing mode output functions actually return
an error.  I noticed that the description for this field is actually
"Transformation mode specific error, e.g. Outer header space is not
enough".  This is slightly misleading as output header space is
checked by xfrm_state_check_space so if there's an error that's
where it'll show up.

Cheers,
-- 
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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