From: Greg Ungerer <gerg@xxxxxxxxxxx>
Compiling for any m68knommu targets will give the following warnings:
CC lib/iomap_copy.o
lib/iomap.c: In function ‘iowrite8_rep’:
lib/iomap.c:213:2: warning: passing argument 2 of ‘io_outsb’ discards qualifiers from pointer target type
arch/m68k/include/asm/io_no.h:58:20: note: expected ‘void *’ but argument is of type ‘const void *’
lib/iomap.c: In function ‘iowrite16_rep’:
lib/iomap.c:217:2: warning: passing argument 2 of ‘io_outsw’ discards qualifiers from pointer target type
arch/m68k/include/asm/io_no.h:66:20: note: expected ‘void *’ but argument is of type ‘const void *’
lib/iomap.c: In function ‘iowrite32_rep’:
lib/iomap.c:221:2: warning: passing argument 2 of ‘io_outsl’ discards qualifiers from pointer target type
arch/m68k/include/asm/io_no.h:74:20: note: expected ‘void *’ but argument is of type ‘const void *’
Fix it by puting in the appropriate const qualifier on the buf argument of
the m68knommu outs* inline functions.
Signed-off-by: Greg Ungerer <gerg@xxxxxxxxxxx>
---
arch/m68k/include/asm/io_no.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/m68k/include/asm/io_no.h b/arch/m68k/include/asm/io_no.h
index e153478..52f7e84 100644
--- a/arch/m68k/include/asm/io_no.h
+++ b/arch/m68k/include/asm/io_no.h
@@ -55,7 +55,7 @@ static inline unsigned int _swapl(volatile unsigned long v)
#define __raw_writew writew
#define __raw_writel writel
-static inline void io_outsb(unsigned int addr, void *buf, int len)
+static inline void io_outsb(unsigned int addr, const void *buf, int len)
{
volatile unsigned char *ap = (volatile unsigned char *) addr;
unsigned char *bp = (unsigned char *) buf;
@@ -63,7 +63,7 @@ static inline void io_outsb(unsigned int addr, void *buf, int len)
*ap = *bp++;
}
-static inline void io_outsw(unsigned int addr, void *buf, int len)
+static inline void io_outsw(unsigned int addr, const void *buf, int len)
{
volatile unsigned short *ap = (volatile unsigned short *) addr;
unsigned short *bp = (unsigned short *) buf;
@@ -71,7 +71,7 @@ static inline void io_outsw(unsigned int addr, void *buf, int len)
*ap = _swapw(*bp++);
}
-static inline void io_outsl(unsigned int addr, void *buf, int len)
+static inline void io_outsl(unsigned int addr, const void *buf, int len)
{
volatile unsigned int *ap = (volatile unsigned int *) addr;
unsigned int *bp = (unsigned int *) buf;
--
1.8.1.4
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