x86: I/O APIC: remove redundant LVT0 masking

The LINT0 line of the local APIC is masked in the LVT0 entry in check_timer() before this function is ever called. Removed the redundant unmasking for better control. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
git-mirror · Jul 8, 2008 · 6b4722a · 6b4722a
1 parent 80d16ba
commit 6b4722a
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diff --git a/arch/x86/kernel/io_apic_32.c b/arch/x86/kernel/io_apic_32.c
@@ -1310,9 +1310,6 @@ static void __init setup_ExtINT_IRQ0_pin(unsigned int apic, unsigned int pin, in
 
 	memset(&entry,0,sizeof(entry));
 
-	/* mask LVT0 */
-	apic_write_around(APIC_LVT0, APIC_LVT_MASKED | APIC_DM_EXTINT);
-
 	/*
 	 * We use logical delivery to get the timer IRQ
 	 * to the first CPU.

diff --git a/arch/x86/kernel/io_apic_64.c b/arch/x86/kernel/io_apic_64.c
@@ -906,9 +906,6 @@ static void __init setup_ExtINT_IRQ0_pin(unsigned int apic, unsigned int pin, in
 
 	memset(&entry, 0, sizeof(entry));
 
-	/* mask LVT0 */
-	apic_write(APIC_LVT0, APIC_LVT_MASKED | APIC_DM_EXTINT);
-
 	/*
 	 * We use logical delivery to get the timer IRQ
 	 * to the first CPU.