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authorCyrill Gorcunov <gorcunov@openvz.org>2009-08-26 21:13:24 +0400
committerIngo Molnar <mingo@elte.hu>2009-08-26 20:26:23 +0200
commitd3a247bfb2c26f5b67367d58af7ad8c2efbbc6c1 (patch)
treea96567e0934844870718f638616abccb4ac52785 /arch/x86/kernel/apic
parentffc438366c2660a6a811b94ba33229bf217f8254 (diff)
x86, apic: Slim down stack usage in early_init_lapic_mapping()
As far as I see there is no external poking of mp_lapic_addr in this procedure which could lead to unpredited changes and require local storage unit for it. Lets use it plain forward. Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Cc: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <20090826171324.GC4548@lenovo> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/apic')
-rw-r--r--arch/x86/kernel/apic/apic.c8
1 files changed, 2 insertions, 6 deletions
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index 3fc3a6c428d..159740decc4 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -1562,8 +1562,6 @@ no_apic:
#ifdef CONFIG_X86_64
void __init early_init_lapic_mapping(void)
{
- unsigned long phys_addr;
-
/*
* If no local APIC can be found then go out
* : it means there is no mpatable and MADT
@@ -1571,11 +1569,9 @@ void __init early_init_lapic_mapping(void)
if (!smp_found_config)
return;
- phys_addr = mp_lapic_addr;
-
- set_fixmap_nocache(FIX_APIC_BASE, phys_addr);
+ set_fixmap_nocache(FIX_APIC_BASE, mp_lapic_addr);
apic_printk(APIC_VERBOSE, "mapped APIC to %16lx (%16lx)\n",
- APIC_BASE, phys_addr);
+ APIC_BASE, mp_lapic_addr);
/*
* Fetch the APIC ID of the BSP in case we have a