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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>
This commit is contained in:
Maciej W. Rozycki 2008-05-27 21:19:28 +01:00 committed by Ingo Molnar
parent 80d16bace6
commit 6b4722a777
2 changed files with 0 additions and 6 deletions
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3
arch/x86/kernel/io_apic_32.c
View File

@ -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.

3
arch/x86/kernel/io_apic_64.c
View File

@ -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.