| Date | Fri, 06 Jun 2008 18:02:38 -0700 | From | Chris Wright <> | Subject | [patch 23/50] x86: dont read maxlvt before checking if APIC is mapped |
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-stable review patch. If anyone has any objections, please let us know. ---------------------
From: Chuck Ebbert <cebbert@redhat.com>
upstream commit: 2584a82deed7196f48066f1b1a7fad4ec5bea961
A check for unmapped apic was added before reading maxlvt but the early read of maxlvt wasn't removed.
Signed-off-by: Chuck Ebbert <cebbert@redhat.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Chris Wright <chrisw@sous-sol.org> --- arch/x86/kernel/apic_64.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/x86/kernel/apic_64.c +++ b/arch/x86/kernel/apic_64.c @@ -524,7 +524,7 @@ int setup_profiling_timer(unsigned int m */ void clear_local_APIC(void) { - int maxlvt = lapic_get_maxlvt(); + int maxlvt; u32 v; /* APIC hasn't been mapped yet */ --
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