linux-kernel - [PATCH 1/1] sh: Fix build error by adding generic ioport

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Date:	Tue,  5 Aug 2014 15:25:08 -0400
From:	Pranith Kumar <bobby.prani@...il.com>
To:	"GitAuthor: Pranith Kumar" <bobby.prani@...il.com>,
	linux-sh@...r.kernel.org (open list:SUPERH),
	linux-kernel@...r.kernel.org (open list)
Subject: [PATCH 1/1] sh: Fix build error by adding generic ioport_{map/unmap}()

Fix build error as reported by Geert Uytterhoeven here:
http://kisskb.ellerman.id.au/kisskb/buildresult/11607865/

The error happens when CONFIG_HAS_IOPORT_MAP=n because of which there are
missing definitions of ioport_map/unmap(). Fix this build error by adding these
prototypes.

Reported-by: Geert Uytterhoeven <geert@...ux-m68k.org>
Signed-off-by: Pranith Kumar <bobby.prani@...il.com>
---
 arch/sh/include/asm/io_noioport.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/sh/include/asm/io_noioport.h b/arch/sh/include/asm/io_noioport.h
index 4d48f14..c727e6d 100644
--- a/arch/sh/include/asm/io_noioport.h
+++ b/arch/sh/include/asm/io_noioport.h
@@ -34,6 +34,17 @@ static inline void outl(unsigned int x, unsigned long port)
 	BUG();
 }
 
+static inline void __iomem *ioport_map(unsigned long port, unsigned int size)
+{
+	BUG();
+	return NULL;
+}
+
+static inline void ioport_unmap(void __iomem *addr)
+{
+	BUG();
+}
+
 #define inb_p(addr)	inb(addr)
 #define inw_p(addr)	inw(addr)
 #define inl_p(addr)	inl(addr)
-- 
1.9.1

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