netdev - Re: [PATCH] ipv6: remove the unnecessary statement in find

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Date:	Wed, 30 Oct 2013 22:11:57 +0100
From:	Hannes Frederic Sowa <hannes@...essinduktion.org>
To:	David Miller <davem@...emloft.net>
Cc:	duanj.fnst@...fujitsu.com, netdev@...r.kernel.org
Subject: Re: [PATCH] ipv6: remove the unnecessary statement in find_match()

On Wed, Oct 30, 2013 at 05:08:37PM -0400, David Miller wrote:
> From: Duan Jiong <duanj.fnst@...fujitsu.com>
> Date: Wed, 30 Oct 2013 15:39:26 +0800
> 
> > 
> > After reading the function rt6_check_neigh(), we can
> > know that the RT6_NUD_FAIL_SOFT can be returned only
> > when the IS_ENABLE(CONFIG_IPV6_ROUTER_PREF) is false.
> > so in function find_match(), there is no need to execute
> > the statement !IS_ENABLED(CONFIG_IPV6_ROUTER_PREF).
> > 
> > Signed-off-by: Duan Jiong <duanj.fnst@...fujitsu.com>
> 
> Applied to net-next, thanks.
> 
> CONFIG_IPV6_ROUTER_PREF is another good candidate for Kconfig
> removal.  I know we've had several bugs that only apply when
> this option is on vs. off.  We're maintaining two different
> code paths, for really no good reason.

I agree and actually thought about that yesterday. Do you think a sysctl
is a good option?

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