linux-kernel - [PATCH 3/5] x86: early_ioremap

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Message-Id: <1201764964.12950.24.camel@caritas-dev.intel.com>
Date:	Thu, 31 Jan 2008 15:36:04 +0800
From:	"Huang, Ying" <ying.huang@...el.com>
To:	Ingo Molnar <mingo@...hat.com>, "H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>, Andi Kleen <ak@...e.de>
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH 3/5] x86: early_ioremap_reset fix 2

This patch fixes a bug of early_ioremap_reset(), which had been fixed
before by "convert the boot time page table to the kernels native
format" patch. But that patch has been reverted now.

Signed-off-by: Huang Ying <ying.huang@...el.com>

---
 arch/x86/mm/ioremap.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -350,7 +350,7 @@ void __init early_ioremap_reset(void)
 	for (idx = FIX_BTMAP_BEGIN; idx >= FIX_BTMAP_END; idx--) {
 		addr = fix_to_virt(idx);
 		pte = early_ioremap_pte(addr);
-		if (!*pte & _PAGE_PRESENT) {
+		if (*pte & _PAGE_PRESENT) {
 			phys = *pte & PAGE_MASK;
 			set_fixmap(idx, phys);
 		}

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