[patch 27/30] powerpc: Fix incorrect setting of __HAVE_ARCH_PTE_SPECIAL
From: Greg KH <gregkh@suse.de>
Date: 2009-10-01 23:39:42
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2.6.30-stable review patch. If anyone has any objections, please let us know. ------------------ From: Weirich, Bernhard <redacted> [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 <redacted> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> --- arch/powerpc/include/asm/pte-common.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/powerpc/include/asm/pte-common.h
+++ b/arch/powerpc/include/asm/pte-common.h@@ -176,7 +176,7 @@ extern unsigned long bad_call_to_PMD_PAG #define HAVE_PAGE_AGP /* Advertise support for _PAGE_SPECIAL */ -#ifdef _PAGE_SPECIAL +#if _PAGE_SPECIAL != 0 #define __HAVE_ARCH_PTE_SPECIAL #endif