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authorAndi Kleen <ak@suse.de>2005-09-12 18:49:24 +0200
committerLinus Torvalds <torvalds@g5.osdl.org>2005-09-12 10:49:57 -0700
commit1d3fbbf9fe8d5cd5f94256781cc69a4ac289a767 (patch)
treec93aab7bb1b6591925995d597b1280124b48ade4 /arch
parent8c566ef5f3eb5d9daf61d0fa31d82c211f601ba0 (diff)
[PATCH] x86-64: Don't trust boot_cpu_id in the mptable.
It could be wrong for kexec or other cases. Read it from the CPU instead. Signed-off-by: Murali <muralim@in.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86_64/kernel/apic.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/x86_64/kernel/apic.c b/arch/x86_64/kernel/apic.c
index 12e9d6ca722..a759f4e7455 100644
--- a/arch/x86_64/kernel/apic.c
+++ b/arch/x86_64/kernel/apic.c
@@ -622,8 +622,7 @@ void __init init_apic_mappings(void)
* Fetch the APIC ID of the BSP in case we have a
* default configuration (or the MP table is broken).
*/
- if (boot_cpu_id == -1U)
- boot_cpu_id = GET_APIC_ID(apic_read(APIC_ID));
+ boot_cpu_id = GET_APIC_ID(apic_read(APIC_ID));
#ifdef CONFIG_X86_IO_APIC
{