Commit b93179bd authored Feb 23, 2007 by Eric W. Biederman Committed by Linus Torvalds Feb 26, 2007

[PATCH] x86_64 irq: Remove unnecessary irq 0 setup.



The code in io_apic.c and in i8259.c currently hardcode the same
vector for the timer interrupt so there is no reason for a special
assignment for the timer as the setup for the i8259 already takes care
of this.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent dfbffdd8

arch/x86_64/kernel/i8259.c

+0 −6

Original line number	Diff line number	Diff line
		@@ -519,12 +519,6 @@ void __init init_IRQ(void)
		}

		#ifdef CONFIG_SMP
		/*
		* IRQ0 must be given a fixed assignment and initialized,
		* because it's used before the IO-APIC is set up.
		*/
		__get_cpu_var(vector_irq)[FIRST_DEVICE_VECTOR] = 0;

		/*
		* The reschedule interrupt is a CPU-to-CPU reschedule-helper
		* IPI, driven by wakeup.