From: Yinghai Lu <yinghai@kernel.org>
Date: Sun, 10 May 2009 06:47:42 +0000 (-0700)
Subject: x86: apic: Check rev 3 fadt correctly for physical_apic bit
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=61fe91e1319556f32bebfd7ed2c68ef02e2c17f7;p=linux.git

x86: apic: Check rev 3 fadt correctly for physical_apic bit

Impact: fix fadt version checking

FADT2_REVISION_ID has value 3 aka rev 3 FADT. So need to use >= instead
of >, as other places in the code do.

[ Impact: extend scope of APIC boot quirk ]

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

diff --git a/arch/x86/kernel/apic/apic_flat_64.c b/arch/x86/kernel/apic/apic_flat_64.c
index 306e5e88fb6f4..744e6d8af27b8 100644
--- a/arch/x86/kernel/apic/apic_flat_64.c
+++ b/arch/x86/kernel/apic/apic_flat_64.c
@@ -235,7 +235,7 @@ static int physflat_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
 	 * regardless of how many processors are present (x86_64 ES7000
 	 * is an example).
 	 */
-	if (acpi_gbl_FADT.header.revision > FADT2_REVISION_ID &&
+	if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID &&
 		(acpi_gbl_FADT.flags & ACPI_FADT_APIC_PHYSICAL)) {
 		printk(KERN_DEBUG "system APIC only can use physical flat");
 		return 1;