Re: [PATCH] OMAP2+: sdrc: fix compile break on OMAP4-only config on current omap-for-linus

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Hello Sergei

On Sat, 26 Feb 2011, Sergei Shtylyov wrote:

>    How about empty inline instead?

Thanks for the review; that is indeed a better approach.  Following is the 
updated patch.

Tony, do you want to take this one?


- Paul

From: Paul Walmsley <paul@xxxxxxxxx>
Date: Fri, 25 Feb 2011 17:38:25 -0700
Subject: [PATCH] OMAP2+: sdrc: fix compile break on OMAP4-only config on current omap-for-linus

On non-OMAP2 and non-OMAP3 kernel configs, turn omap2_sdrc_init() into
a no-op.  Otherwise, compilation breaks on an OMAP4-only config with
the current omap-for-linus branch:

arch/arm/mach-omap2/built-in.o: In function `omap2_init_common_devices':
../mach-omap2/io.c:421: undefined reference to `omap2_sdrc_init'

Thanks to Sergei Shtylyov <sshtylyov@xxxxxxxxxx> for suggesting the use
of a empty static inline function rather than a macro.

Signed-off-by: Paul Walmsley <paul@xxxxxxxxx>
Cc: Tony Lindgren <tony@xxxxxxxxxxx>
Cc: Sergei Shtylyov <sshtylyov@xxxxxxxxxx>
---
 arch/arm/plat-omap/include/plat/sdrc.h |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/arch/arm/plat-omap/include/plat/sdrc.h b/arch/arm/plat-omap/include/plat/sdrc.h
index efd87c8..2a34a65 100644
--- a/arch/arm/plat-omap/include/plat/sdrc.h
+++ b/arch/arm/plat-omap/include/plat/sdrc.h
@@ -124,8 +124,14 @@ struct omap_sdrc_params {
 	u32 mr;
 };
 
+#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
 void __init omap2_sdrc_init(struct omap_sdrc_params *sdrc_cs0,
 			    struct omap_sdrc_params *sdrc_cs1);
+#else
+static inline void __init omap2_sdrc_init(struct omap_sdrc_params *sdrc_cs0,
+					  struct omap_sdrc_params *sdrc_cs1) {};
+#endif
+
 int omap2_sdrc_get_params(unsigned long r,
 			  struct omap_sdrc_params **sdrc_cs0,
 			  struct omap_sdrc_params **sdrc_cs1);
-- 
1.7.2.3

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