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Date: Sat, 24 Oct 2009 03:37:23 +0400 From: Alexander Potashev <aspotashev@...il.com> To: "H. Peter Anvin" <hpa@...or.com> Cc: x86@...nel.org, LKML <linux-kernel@...r.kernel.org>, Alexander Potashev <aspotashev@...il.com> Subject: [PATCH] x86, boot: simplify setting of the PAE bit A single 'movl' is shorter than the 'xorl'-'orl' pair. No behaviour change. Signed-off-by: Alexander Potashev <aspotashev@...il.com> --- arch/x86/boot/compressed/head_64.S | 3 +-- 1 files changed, 1 insertions(+), 2 deletions(-) diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S index 077e1b6..faff0dc 100644 --- a/arch/x86/boot/compressed/head_64.S +++ b/arch/x86/boot/compressed/head_64.S @@ -107,8 +107,7 @@ ENTRY(startup_32) lgdt gdt(%ebp) /* Enable PAE mode */ - xorl %eax, %eax - orl $(X86_CR4_PAE), %eax + movl $(X86_CR4_PAE), %eax movl %eax, %cr4 /* -- 1.6.5.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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