linux-kernel - Re: [PATCH] ARM: mvebu: compile pm code conditionally

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Date:	Thu, 30 Jun 2016 13:48:26 +0200
From:	Gregory CLEMENT <gregory.clement@...e-electrons.com>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Jason Cooper <jason@...edaemon.net>, Andrew Lunn <andrew@...n.ch>,
	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
	Ben Dooks <ben.dooks@...ethink.co.uk>,
	Russell King <linux@...linux.org.uk>,
	Simon Guinot <simon.guinot@...uanux.org>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ARM: mvebu: compile pm code conditionally

Hi Arnd,
 
 On lun., juin 20 2016, Arnd Bergmann <arnd@...db.de> wrote:

> A cleanup to include the headers correctly caused another build problem:
>
> arch/arm/mach-mvebu/kirkwood-pm.c:70:13: error: redefinition of 'kirkwood_pm_init'
> arch/arm/mach-mvebu/kirkwood-pm.h:23:20: note: previous definition of 'kirkwood_pm_init' was here
>
> The underlying issue is that kirkwood-pm.o is not actually meant to be
> used when CONFIG_PM is disabled, so we should also leave it out of the
> Makefile.
>
> The same seems to be true for the PM code in MACH_MVEBU_V7, and I'm
> treating it the same way here.
>
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> Fixes: d705c1a66e15 ("ARM: Kirkwood: fix kirkwood_pm_init() declaration/type")

Applied on mvebu/fixes

Thanks,

Gregory

> ---
>  arch/arm/mach-mvebu/Makefile | 10 ++++++++--
>  1 file changed, 8 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm/mach-mvebu/Makefile b/arch/arm/mach-mvebu/Makefile
> index 568863e1513c..6c6497e80a7b 100644
> --- a/arch/arm/mach-mvebu/Makefile
> +++ b/arch/arm/mach-mvebu/Makefile
> @@ -6,9 +6,15 @@ CFLAGS_pmsu.o			:= -march=armv7-a
>  obj-$(CONFIG_MACH_MVEBU_ANY)	 += system-controller.o mvebu-soc-id.o
>  
>  ifeq ($(CONFIG_MACH_MVEBU_V7),y)
> -obj-y				 += cpu-reset.o board-v7.o coherency.o coherency_ll.o pmsu.o pmsu_ll.o pm.o pm-board.o
> +obj-y				 += cpu-reset.o board-v7.o coherency.o coherency_ll.o pmsu.o pmsu_ll.o
> +
> +obj-$(CONFIG_PM)		 += pm.o pm-board.o
>  obj-$(CONFIG_SMP)		 += platsmp.o headsmp.o platsmp-a9.o headsmp-a9.o
>  endif
>  
>  obj-$(CONFIG_MACH_DOVE)		 += dove.o
> -obj-$(CONFIG_MACH_KIRKWOOD)	 += kirkwood.o kirkwood-pm.o
> +
> +ifeq ($(CONFIG_MACH_KIRKWOOD),y)
> +obj-y				 += kirkwood.o
> +obj-$(CONFIG_PM)		 += kirkwood-pm.o
> +endif
> -- 
> 2.9.0
>

-- 
Gregory Clement, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com