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.

Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: <stable@vger.kernel.org>	[3.16+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/arch/sh/include/asm/io_noioport.h b/arch/sh/include/asm/io_noioport.h
index 4d48f14..c727e6d 100644 (file)
--- 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)