Messages in this thread Patch in this message | | | Date | Fri, 24 Feb 2012 11:50:27 +0000 | From | "Jan Beulich" <> | Subject | [PATCH] x86: eliminate unused irq0_irqs counter |
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As of 2.6.38 this counter is being maintained without ever being read.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
--- arch/x86/include/asm/hardirq.h | 1 - arch/x86/kernel/time.c | 3 --- 2 files changed, 4 deletions(-)
--- 3.3-rc4/arch/x86/include/asm/hardirq.h +++ 3.3-rc4-x86-no-irq0_irqs/arch/x86/include/asm/hardirq.h @@ -7,7 +7,6 @@ typedef struct { unsigned int __softirq_pending; unsigned int __nmi_count; /* arch dependent */ - unsigned int irq0_irqs; #ifdef CONFIG_X86_LOCAL_APIC unsigned int apic_timer_irqs; /* arch dependent */ unsigned int irq_spurious_count; --- 3.3-rc4/arch/x86/kernel/time.c +++ 3.3-rc4-x86-no-irq0_irqs/arch/x86/kernel/time.c @@ -57,9 +57,6 @@ EXPORT_SYMBOL(profile_pc); */ static irqreturn_t timer_interrupt(int irq, void *dev_id) { - /* Keep nmi watchdog up to date */ - inc_irq_stat(irq0_irqs); - global_clock_event->event_handler(global_clock_event); /* MCA bus quirk: Acknowledge irq0 by setting bit 7 in port 0x61 */
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