linux-kernel - [PATCH 06/17] ARM: pxa: work around duplicate definition of GPIO24_SSP1

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Message-Id: <1349195816-2225-7-git-send-email-arnd@arndb.de>
Date:	Tue,  2 Oct 2012 18:36:45 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	linux-arm-kernel@...radead.org
Cc:	arm@...nel.org, linux-kernel@...r.kernel.org,
	Arnd Bergmann <arnd@...db.de>,
	Haojian Zhuang <haojian.zhuang@...il.com>,
	Mike Rapoport <mike@...pulab.co.il>
Subject: [PATCH 06/17] ARM: pxa: work around duplicate definition of GPIO24_SSP1_SFRM

The symbol "GPIO24_SSP1_SFRM" is defined in both mfp-pxa27x.h and
mfp-pxa25x.h. Since the macro is not actually used in the cm-x2xx.c
file, but it includes both headers, a safe workaround should be
to just undefine it from the .c file. This is a bit hacky and
the headers should be fixed to not both define it, but for now
it gets us around an annoying warning.

Without this patch, building cm_x2xx_defconfig results in:

In file included from arch/arm/mach-pxa/include/mach-pxa/pxa27x.h:7:0,
                 from arch/arm/mach-pxa/cm-x2xx.c:25:
arch/arm/mach-pxa/include/mach-pxa/mfp-pxa27x.h:215:0: warning: "GPIO24_SSP1_SFRM" redefined [enabled by default]
arch/arm/mach-pxa/include/mach-pxa/mfp-pxa25x.h:111:0: note: this is the location of the previous definition

Signed-off-by: Arnd Bergmann <arnd@...db.de>
Cc: Haojian Zhuang <haojian.zhuang@...il.com>
Cc: Mike Rapoport <mike@...pulab.co.il>
---
 arch/arm/mach-pxa/cm-x2xx.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-pxa/cm-x2xx.c b/arch/arm/mach-pxa/cm-x2xx.c
index 8fa4ad2..ae5e74a 100644
--- a/arch/arm/mach-pxa/cm-x2xx.c
+++ b/arch/arm/mach-pxa/cm-x2xx.c
@@ -22,6 +22,7 @@
 #include <asm/mach/map.h>
 
 #include <mach/pxa25x.h>
+#undef GPIO24_SSP1_SFRM
 #include <mach/pxa27x.h>
 #include <mach/audio.h>
 #include <mach/pxafb.h>
-- 
1.7.10

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