linux-kernel - Re: Build regressions/improvements in v4.6-rc7

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Date:	Mon, 09 May 2016 14:48:25 +0200
From:	Paul Bolle <pebolle@...cali.nl>
To:	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Ross Lagerwall <ross.lagerwall@...rix.com>,
	David Vrabel <david.vrabel@...rix.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Build regressions/improvements in v4.6-rc7

On ma, 2016-05-09 at 10:24 +0200, Geert Uytterhoeven wrote:
>   + /home/kisskb/slave/src/drivers/xen/balloon.c: warning: 'release_memory_resource' declared 'static' but never defined [-Wunused-function]:  => 154:13

This can be triggered by building balloon.o while
CONFIG_XEN_BALLOON_MEMORY_HOTPLUG is not set.

I guess commit dfd74a1edfab ("xen/balloon: Fix crash when ballooning on
x86 32 bit PAE") should have put this declaration of
release_memory_resource inside an "#ifdef
CONFIG_XEN_BALLOON_MEMORY_HOTPLUG" preprocessor block.

Thanks,

Paul Bolle