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

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Date:	Wed, 05 Nov 2014 15:26:34 -0800
From:	Joe Perches <joe@...ches.com>
To:	Pablo Neira Ayuso <pablo@...filter.org>
Cc:	Steven Rostedt <rostedt@...dmis.org>, linux-kernel@...r.kernel.org,
	Al Viro <viro@...IV.linux.org.uk>,
	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 Thu, 2014-11-06 at 00:23 +0100, Pablo Neira Ayuso wrote:
> 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.
[]
> 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.

seq_printf shouldn't be void yet.
There are still other places that need conversion.

> >  	if (seq_print_acct(s, ct, IP_CT_DIR_REPLY))
> >  		goto release;
> 
> And here.

Eventually I trust it will be fixed, but these
patches are an intermediate step on the way there.


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