summaryrefslogtreecommitdiff
path: root/include
diff options
context:
space:
mode:
Diffstat (limited to 'include')
-rw-r--r--include/asm-m68k/io.h22
1 files changed, 8 insertions, 14 deletions
diff --git a/include/asm-m68k/io.h b/include/asm-m68k/io.h
index 91d7592..33c454a 100644
--- a/include/asm-m68k/io.h
+++ b/include/asm-m68k/io.h
@@ -28,19 +28,13 @@
#include <asm/byteorder.h>
-/* ++roman: The assignments to temp. vars avoid that gcc sometimes generates
- * two accesses to memory, which may be undesirable for some devices.
- */
-#define __raw_readb(addr) \
- ({ u8 __v = (*(volatile u8 *) (addr)); __v; })
-#define __raw_readw(addr) \
- ({ u16 __v = (*(volatile u16 *) (addr)); __v; })
-#define __raw_readl(addr) \
- ({ u32 __v = (*(volatile u32 *) (addr)); __v; })
+#define __raw_readb(addr) (*(volatile u8 *)(addr))
+#define __raw_readw(addr) (*(volatile u16 *)(addr))
+#define __raw_readl(addr) (*(volatile u32 *)(addr))
-#define __raw_writeb(addr,b) (void)((*(volatile u8 *) (addr)) = (b))
-#define __raw_writew(addr,w) (void)((*(volatile u16 *) (addr)) = (w))
-#define __raw_writel(addr,l) (void)((*(volatile u32 *) (addr)) = (l))
+#define __raw_writeb(b,addr) ((*(volatile u8 *) (addr)) = (b))
+#define __raw_writew(w,addr) ((*(volatile u16 *) (addr)) = (w))
+#define __raw_writel(l,addr) ((*(volatile u32 *) (addr)) = (l))
#define readb(addr) in_8((volatile u8 *)(addr))
#define writeb(b,addr) out_8((volatile u8 *)(addr), (b))
@@ -245,8 +239,8 @@ typedef unsigned long phys_addr_t;
#define MAP_WRBACK (0)
#define MAP_WRTHROUGH (0)
-static inline void *
-map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags)
+static inline void *map_physmem(phys_addr_t paddr, unsigned long len,
+ unsigned long flags)
{
return (void *)paddr;
}