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Commit 6b4722a7 authored by Maciej W. Rozycki's avatar Maciej W. Rozycki Committed by Ingo Molnar
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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: default avatarMaciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 80d16bac

arch/x86/kernel/io_apic_32.c

+0 −3
Original line number Original line Diff line number Diff line
@@ -1310,9 +1310,6 @@ static void __init setup_ExtINT_IRQ0_pin(unsigned int apic, unsigned int pin, in 




	memset(&entry,0,sizeof(entry));

	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

	 * We use logical delivery to get the timer IRQ

	 * to the first CPU.

	 * to the first CPU.

arch/x86/kernel/io_apic_64.c

+0 −3
Original line number Original line Diff line number Diff line
@@ -906,9 +906,6 @@ static void __init setup_ExtINT_IRQ0_pin(unsigned int apic, unsigned int pin, in 




	memset(&entry, 0, sizeof(entry));

	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

	 * We use logical delivery to get the timer IRQ

	 * to the first CPU.

	 * to the first CPU.