From 261a5ec36befbe6bae069be14f45e618dcd35146 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Wed, 30 Jan 2008 13:33:39 +0100 Subject: [PATCH] x86: change aper valid checking sequence old sequence: size ==> >4G ==> point to RAM changed to: >4G ==> point to RAM ==> size some bios even leave aper to unclear, so check size at last. To avoid reporting: Node 0: Aperture @ 4a42000000 size 32 MB Aperture too small (32 MB) with this change we will get: Node 0: Aperture @ 4a42000000 size 32 MB Aperture beyond 4G. Ignoring. Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- arch/x86/kernel/aperture_64.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/x86/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c index 0b837bb3becb..608152a2a05e 100644 --- a/arch/x86/kernel/aperture_64.c +++ b/arch/x86/kernel/aperture_64.c @@ -85,10 +85,6 @@ static int __init aperture_valid(u64 aper_base, u32 aper_size) if (!aper_base) return 0; - if (aper_size < 64*1024*1024) { - printk(KERN_ERR "Aperture too small (%d MB)\n", aper_size>>20); - return 0; - } if (aper_base + aper_size > 0x100000000UL) { printk(KERN_ERR "Aperture beyond 4GB. Ignoring.\n"); return 0; @@ -97,6 +93,10 @@ static int __init aperture_valid(u64 aper_base, u32 aper_size) printk(KERN_ERR "Aperture pointing to e820 RAM. Ignoring.\n"); return 0; } + if (aper_size < 64*1024*1024) { + printk(KERN_ERR "Aperture too small (%d MB)\n", aper_size>>20); + return 0; + } return 1; } -- 2.20.1