linux/arch/sparc
James Hogan f11b478d46 fbmem: fix fb_read, fb_write unaligned accesses
fb_{read,write} access the framebuffer using lots of fb_{read,write}l's
but don't check that the file position is aligned which can cause problems
on some architectures which do not support unaligned accesses.

Since the operations are essentially memcpy_{from,to}io, new
fb_memcpy_{from,to}fb macros have been defined and these are used instead.

For Sparc, fb_{read,write} macros use sbus_{read,write}, so this defines
new sbus_memcpy_{from,to}io functions the same as memcpy_{from,to}io but
using sbus_{read,write}b instead of {read,write}b.

Signed-off-by: James Hogan <james@albanarts.com>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-27 18:03:08 -07:00
..
boot Merge branch 'master' into for-next 2010-06-16 18:08:13 +02:00
configs defconfig reduction 2010-08-14 22:26:53 +02:00
include/asm fbmem: fix fb_read, fb_write unaligned accesses 2010-10-27 18:03:08 -07:00
kernel Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6 2010-10-25 08:19:14 -07:00
lib sparc64: Make lock backoff really a NOP on UP builds. 2010-08-18 22:53:26 -07:00
math-emu Revert "endian: #define __BYTE_ORDER" 2010-05-26 08:30:15 -07:00
mm mm: fix race in kunmap_atomic() 2010-10-27 18:03:05 -07:00
oprofile sparc: using HZ needs an include of linux/param.h 2009-10-05 00:46:08 -07:00
prom Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6 2010-10-25 08:19:14 -07:00
Kconfig Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6 2010-10-25 08:19:14 -07:00
Kconfig.debug sparc: Kill user copy check code. 2010-08-09 00:45:46 -07:00
Makefile sparc: Set UTS_MACHINE correctly. 2009-12-05 17:17:55 -08:00