Re: [PATCH 8/9] isdn: Remove unused variable causing a compilebuild warning

[David Miller]

From: Lee Jones <lee.jones@xxxxxxxxxx>
Date: Mon, 5 Nov 2012 09:44:19 +0100

> On Sun, 04 Nov 2012, David Miller wrote:
> 
>> From: Lee Jones <lee.jones@xxxxxxxxxx>
>> Date: Sun, 4 Nov 2012 11:53:32 +0100
>> 
>> > On Sun, 04 Nov 2012, Paul Bolle wrote:
>> > 
>> >> On Sat, 2012-11-03 at 23:48 +0100, Lee Jones wrote:
>> >> > On Sat, 03 Nov 2012, Paul Bolle wrote:
>> >> > > On Sat, 2012-11-03 at 23:02 +0100, Lee Jones wrote:
>> >> > > > This patch fixes:
>> >> > > > drivers/isdn/i4l/isdn_common.c: In function ʽisdn_ioctlʼ:
>> >> > > > drivers/isdn/i4l/isdn_common.c:1278:8: warning: unused variable ʽsʼ [-Wunused-variable]
>> >> > > 
>> >> > > Did you have CONFIG_NETDEVICES not set in this build?
>> >> > 
>> >> > Ah yes, I see it. The function went down further than I thought
>> >> > it did. So the real fix is to ensure 's' is defined inside of
>> >> > some ifdef CONFIG_NETDEVICES guards. 
>> >> 
>> >> What puzzles me is that we only find these "#ifdef CONFIG_NETDEVICES"
>> >> guards in this file and not in isdn_net.c, were all the ioctl commands
>> >> guarded that way seem to be calling into. On first glance that doesn't
>> >> make much sense.
>> >> 
>> >> (Actually the idea of having ISDN without NETDEVICES is a bit puzzling
>> >> too. But there are too many parts of the isdn subsystem that I'm
>> >> unfamiliar with to say whether that can make sense.)
>> > 
>> > I'm in the same position as you Paul. I just noticed the warning so
>> > fixed it following the current way of doing things. Any, more
>> > substantial changes requiring greater knowledge of the subsystem
>> > would have to be done by someone else.
>> 
>> I think the most appropriate thing to do is make CONFIG_ISDN depend
>> upon CONFIG_NETDEVICES in the Kconfig file.
> 
> ... and then remove the CONFIG_NETDEVICES guards in isdn_common.c?
> 
> If that's suitable more suitable I can do that instead?
> 
> Just need a yay or nay and I'll make it happen.

"yay"
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