[ARM] 3191/1: Mark I/O pointer as const in __raw_reads[bwl]

Patch from Deepak Saxena

Mark the ioremap'd cookie/pointer in said functions as const since
we should not be actualy touching the data. This fixes a slew of
compile warnings on IXP4xx as our reads[bwl] already mark this
parameter as const.

Signed-off-by: Deepak Saxena <dsaxena@plexity.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 3 insertions, 3 deletions

diff --git a/include/asm-arm/io.h b/include/asm-arm/io.h
index ae69db4a1010..0cf4d4f99600 100644
--- a/include/asm-arm/io.h
+++ b/include/asm-arm/io.h
@@ -42,9 +42,9 @@ extern void __raw_writesb(void __iomem *addr, const void *data, int bytelen);
 extern void __raw_writesw(void __iomem *addr, const void *data, int wordlen);
 extern void __raw_writesl(void __iomem *addr, const void *data, int longlen);
 
-extern void __raw_readsb(void __iomem *addr, void *data, int bytelen);
-extern void __raw_readsw(void __iomem *addr, void *data, int wordlen);
-extern void __raw_readsl(void __iomem *addr, void *data, int longlen);
+extern void __raw_readsb(const void __iomem *addr, void *data, int bytelen);
+extern void __raw_readsw(const void __iomem *addr, void *data, int wordlen);
+extern void __raw_readsl(const void __iomem *addr, void *data, int longlen);
 
 #define __raw_writeb(v,a)       (__chk_io_ptr(a), *(volatile unsigned char __force  *)(a) = (v))
 #define __raw_writew(v,a)       (__chk_io_ptr(a), *(volatile unsigned short __force *)(a) = (v))