linux-kernel - [PATCH] fb.h: ARM uses __raw

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Date:	Fri, 10 Jun 2011 17:31:08 -0700
From:	H Hartley Sweeten <hartleys@...ionengravers.com>
To:	Linux Kernel <linux-kernel@...r.kernel.org>
CC:	ARM Kernel <linux-arm-kernel@...ts.infradead.org>,
	<linux-fbdev@...r.kernel.org>, <lethal@...ux-sh.org>,
	Russell King <linux@....linux.org.uk>
Subject: [PATCH] fb.h: ARM uses __raw_{read/write}

ARM provides __raw_{read/write}* functions for memory access. These
should be used instead of the default '(*(volatile' stuff to make sure the
memory accesses are typesafe (void __iomem *).

This also fixes a number of sparse warning like:

  warning: cast removes address space of expression

Signed-off-by: H Hartley Sweeten <hsweeten@...ionengravers.com>
Cc: Paul Mundt <lethal@...ux-sh.org>
Cc: Russell King <linux@....linux.org.uk>

---

diff --git a/include/linux/fb.h b/include/linux/fb.h
index 6a82748..a040e92e 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -937,7 +937,7 @@ static inline struct apertures_struct *alloc_apertures(unsigned int max_num) {
 #define fb_memcpy_fromfb sbus_memcpy_fromio
 #define fb_memcpy_tofb sbus_memcpy_toio
 
-#elif defined(__i386__) || defined(__alpha__) || defined(__x86_64__) || defined(__hppa__) || defined(__sh__) || defined(__powerpc__) || defined(__avr32__) || defined(__bfin__)
+#elif defined(__i386__) || defined(__alpha__) || defined(__x86_64__) || defined(__hppa__) || defined(__sh__) || defined(__powerpc__) || defined(__avr32__) || defined(__bfin__) || defined(__arm__)
 
 #define fb_readb __raw_readb
 #define fb_readw __raw_readw
--
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