linux-kernel - Re: [PATCH] netfilter: ctnetlink: add more #ifdef around unused code

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Date:	Mon, 18 Apr 2016 20:43:36 +0200
From:	Pablo Neira Ayuso <pablo@...filter.org>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Patrick McHardy <kaber@...sh.net>,
	Jozsef Kadlecsik <kadlec@...ckhole.kfki.hu>,
	"David S. Miller" <davem@...emloft.net>,
	Daniel Borkmann <daniel@...earbox.net>,
	Ken-ichirou MATSUZAWA <chamaken@...il.com>,
	netfilter-devel@...r.kernel.org, coreteam@...filter.org,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] netfilter: ctnetlink: add more #ifdef around unused code

On Mon, Apr 18, 2016 at 08:33:15PM +0200, Arnd Bergmann wrote:
> On Monday 18 April 2016 20:16:59 Pablo Neira Ayuso wrote:
> > On Sat, Apr 16, 2016 at 10:17:43PM +0200, Arnd Bergmann wrote:
> > > A recent patch removed many 'inline' annotations for static
> > > functions in this file, which has caused warnings for functions
> > > that are not used in a given configuration, in particular when
> > > CONFIG_NF_CONNTRACK_EVENTS is disabled:
> > > 
> > > nf_conntrack_netlink.c:572:15: 'ctnetlink_timestamp_size' defined but not used
> > > nf_conntrack_netlink.c:546:15: 'ctnetlink_acct_size' defined but not used
> > > nf_conntrack_netlink.c:339:12: 'ctnetlink_label_size' defined but not used
> > 
> > Arnd, thanks for the fix.
> > 
> > I'm planning to push this though:
> > 
> > http://patchwork.ozlabs.org/patch/610820/
> > 
> > This is restoring the inlines for the size calculation functions, but
> > I think that's ok. They are rather small and they're called from the
> > event notification path (ie. packet path), so the compiler just place
> > them out of the way when not needed and we calm down the gcc warning.
> 
> Looks good. I'll put this in my randconfig builder to replace my own
> patch and will let you know if you missed something.

Thanks, will wait for your ack then.