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powerpc: Fix incorrect setting of __HAVE_ARCH_PTE_SPECIAL

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[I'm going to fix upstream differently, by having all CPU types
actually support _PAGE_SPECIAL, but I prefer the simple and obvious
fix for -stable. -- Ben]

The test that decides whether to define __HAVE_ARCH_PTE_SPECIAL on
powerpc is bogus and will end up always defining it, even when
_PAGE_SPECIAL is not supported (in which case it's 0) such as on
8xx or 40x processors.

Signed-off-by: Bernhard Weirich <bernhard.weirich@riedel.net>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Weirich, Bernhard
2009-09-24 17:16:53 +10:00
committed by Greg Kroah-Hartman
parent 50c744f954
commit c1aa9d2b4d
1 changed files with 1 additions and 1 deletions
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2
arch/powerpc/include/asm/pte-common.h
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@@ -176,7 +176,7 @@ extern unsigned long bad_call_to_PMD_PAGE_SIZE(void);
#define HAVE_PAGE_AGP
/* Advertise support for _PAGE_SPECIAL */
#ifdef _PAGE_SPECIAL
#if _PAGE_SPECIAL != 0
#define __HAVE_ARCH_PTE_SPECIAL
#endif