linux-kernel - Re: [PATCH 3/8] netfilter: Convert print

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Date:	Thu, 6 Nov 2014 00:23:14 +0100
From:	Pablo Neira Ayuso <pablo@...filter.org>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	linux-kernel@...r.kernel.org, Al Viro <viro@...IV.linux.org.uk>,
	Joe Perches <joe@...ches.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Patrick McHardy <kaber@...sh.net>,
	Jozsef Kadlecsik <kadlec@...ckhole.kfki.hu>,
	netfilter-devel@...r.kernel.org, coreteam@...filter.org
Subject: Re: [PATCH 3/8] netfilter: Convert print_tuple functions to return
 void

On Wed, Nov 05, 2014 at 02:24:29PM -0500, Steven Rostedt wrote:
> From: Joe Perches <joe@...ches.com>
> 
> Since adding a new function to seq_file (seq_has_overflowed())
> there isn't any value for functions called from seq_show to
> return anything.   Remove the int returns of the various
> print_tuple/<foo>_print_tuple functions.
> 
> Link: http://lkml.kernel.org/p/f2e8cf8df433a197daa62cbaf124c900c708edc7.1412031505.git.joe@perches.com
> 
> Cc: Pablo Neira Ayuso <pablo@...filter.org>
> Cc: Patrick McHardy <kaber@...sh.net>
> Cc: Jozsef Kadlecsik <kadlec@...ckhole.kfki.hu>
> Cc: netfilter-devel@...r.kernel.org
> Cc: coreteam@...filter.org
> Signed-off-by: Joe Perches <joe@...ches.com>
> Signed-off-by: Steven Rostedt <rostedt@...dmis.org>

I replied to this yesterday, but it seems some spam filter also
munched it. One comment below.

> @@ -202,9 +203,8 @@ static int ct_seq_show(struct seq_file *s, void *v)
>  	if (l4proto->print_conntrack)
>  		l4proto->print_conntrack(s, ct);
>  
> -	if (print_tuple(s, &ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple,
> -			l3proto, l4proto))
> -		goto release;
> +	print_tuple(s, &ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple,
> +		    l3proto, l4proto);
>  
>  	if (seq_print_acct(s, ct, IP_CT_DIR_ORIGINAL))
>  		goto release;

seq_print_acct returns seq_printf which is now void. I guess you have
to remove this check too.

> @@ -213,9 +213,8 @@ static int ct_seq_show(struct seq_file *s, void *v)
>  		if (seq_printf(s, "[UNREPLIED] "))
>  			goto release;
>  
> -	if (print_tuple(s, &ct->tuplehash[IP_CT_DIR_REPLY].tuple,
> -			l3proto, l4proto))
> -		goto release;
> +	print_tuple(s, &ct->tuplehash[IP_CT_DIR_REPLY].tuple,
> +		    l3proto, l4proto);
>  
>  	if (seq_print_acct(s, ct, IP_CT_DIR_REPLY))
>  		goto release;

And here.
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