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Subject[PATCH] m32r: fix readl/writel prototypes
All other architectures use 'unsigned int' as the data in readl/write,
but m32r uses 'unsigned long', leading to lots of harmless build warnings

drivers/mmc/host/dw_mmc.c: In function 'dw_mci_regs_show':
drivers/mmc/host/dw_mmc.c:168:31: warning: format '%x' expects argument of type 'unsigned int', but argument 3 has type 'long unsigned int' [-Wformat=]
seq_printf(s, "STATUS:\t0x%08x\n", mci_readl(host, STATUS));

Signed-off-by: Arnd Bergmann <>
arch/m32r/include/asm/io.h | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/m32r/include/asm/io.h b/arch/m32r/include/asm/io.h
index 1b653bb16f9a..093486b5b931 100644
--- a/arch/m32r/include/asm/io.h
+++ b/arch/m32r/include/asm/io.h
@@ -108,9 +108,9 @@ static inline unsigned short _readw(unsigned long addr)
return *(volatile unsigned short __force *)addr;

-static inline unsigned long _readl(unsigned long addr)
+static inline unsigned int _readl(unsigned long addr)
- return *(volatile unsigned long __force *)addr;
+ return *(volatile unsigned int __force *)addr;

static inline void _writeb(unsigned char b, unsigned long addr)
@@ -123,9 +123,9 @@ static inline void _writew(unsigned short w, unsigned long addr)
*(volatile unsigned short __force *)addr = w;

-static inline void _writel(unsigned long l, unsigned long addr)
+static inline void _writel(unsigned long l, unsigned int addr)
- *(volatile unsigned long __force *)addr = l;
+ *(volatile unsigned int __force *)addr = l;

#define inb _inb
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