From 6b4722a7779ebadcf016fd96ce3156b6acda8a31 Mon Sep 17 00:00:00 2001 From: "Maciej W. Rozycki" Date: Tue, 27 May 2008 21:19:28 +0100 Subject: [PATCH] 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 Signed-off-by: Ingo Molnar --- arch/x86/kernel/io_apic_32.c | 3 --- arch/x86/kernel/io_apic_64.c | 3 --- 2 files changed, 6 deletions(-) diff --git a/arch/x86/kernel/io_apic_32.c b/arch/x86/kernel/io_apic_32.c index 6e743ecf863..51e5519ee1a 100644 --- 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 index 83d4e117746..565f19b01bf 100644 --- 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. -- 2.46.0