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

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Date:	Mon, 20 Jun 2016 18:08:22 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	Jason Cooper <jason@...edaemon.net>, Andrew Lunn <andrew@...n.ch>,
	Gregory Clement <gregory.clement@...e-electrons.com>,
	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
Cc:	Ben Dooks <ben.dooks@...ethink.co.uk>,
	Arnd Bergmann <arnd@...db.de>,
	Russell King <linux@...linux.org.uk>,
	Simon Guinot <simon.guinot@...uanux.org>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH] ARM: mvebu: compile pm code conditionally

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")
---
 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