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Subject[PATCH] sparc: io_64.h: Replace io function-link macros
Date
Function like macros cannot be assigned to function pointers. This patch
convert the function-like macros into object-macros, that the
precompiler will replace with the name of the final function.

With this patch this kind of code will work:

if (priv->mode_big_endian)
priv.read = ioread32be;
else
priv.read = ioread32;

Same approach has been taken on asm-generic/io.h

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Fixes: 99082eab63449f9d spi/xilinx: Remove iowrite/ioread wrappers
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
---
arch/sparc/include/asm/io_64.h | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/arch/sparc/include/asm/io_64.h b/arch/sparc/include/asm/io_64.h
index 9b672be..50d4840 100644
--- a/arch/sparc/include/asm/io_64.h
+++ b/arch/sparc/include/asm/io_64.h
@@ -407,16 +407,16 @@ static inline void iounmap(volatile void __iomem *addr)
{
}

-#define ioread8(X) readb(X)
-#define ioread16(X) readw(X)
-#define ioread16be(X) __raw_readw(X)
-#define ioread32(X) readl(X)
-#define ioread32be(X) __raw_readl(X)
-#define iowrite8(val,X) writeb(val,X)
-#define iowrite16(val,X) writew(val,X)
-#define iowrite16be(val,X) __raw_writew(val,X)
-#define iowrite32(val,X) writel(val,X)
-#define iowrite32be(val,X) __raw_writel(val,X)
+#define ioread8 readb
+#define ioread16 readw
+#define ioread16be __raw_readw
+#define ioread32 readl
+#define ioread32be __raw_readl
+#define iowrite8 writeb
+#define iowrite16 writew
+#define iowrite16be __raw_writew
+#define iowrite32 writel
+#define iowrite32be __raw_writel

/* Create a virtual mapping cookie for an IO port range */
void __iomem *ioport_map(unsigned long port, unsigned int nr);
--
2.1.4


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