From patchwork Fri Oct 2 01:17:56 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [128/136] powerpc: Fix incorrect setting of __HAVE_ARCH_PTE_SPECIAL Date: Thu, 01 Oct 2009 15:17:56 -0000 From: gregkh@suse.de X-Patchwork-Id: 34798 Message-Id: <20091002012427.251860546@mini.kroah.org> To: linux-kernel@vger.kernel.org, stable@kernel.org Cc: linuxppc-dev list , bernhard.weirich@riedel.net, akpm@linux-foundation.org, torvalds@linux-foundation.org, stable-review@kernel.org, alan@lxorguk.ukuu.org.uk, RFeany@mrv.com 2.6.31-stable review patch. If anyone has any objections, please let us know. ------------------ From: Weirich, Bernhard [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 Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Greg Kroah-Hartman --- 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