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Subject[tip:timers/core] x86/time: Eliminate unused irq0_irqs counter
Commit-ID:  d93c4071b78f4676ef70ec8f2d4bae59b6cc5523
Gitweb: http://git.kernel.org/tip/d93c4071b78f4676ef70ec8f2d4bae59b6cc5523
Author: Jan Beulich <JBeulich@suse.com>
AuthorDate: Fri, 24 Feb 2012 11:50:27 +0000
Committer: Ingo Molnar <mingo@elte.hu>
CommitDate: Mon, 27 Feb 2012 08:46:25 +0100

x86/time: Eliminate unused irq0_irqs counter

As of v2.6.38 this counter is being maintained without ever being
read.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Link: http://lkml.kernel.org/r/4F4787930200007800074A10@nat28.tlf.novell.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
arch/x86/include/asm/hardirq.h | 1 -
arch/x86/kernel/time.c | 3 ---
2 files changed, 0 insertions(+), 4 deletions(-)

diff --git a/arch/x86/include/asm/hardirq.h b/arch/x86/include/asm/hardirq.h
index da0b3ca..382f75d 100644
--- a/arch/x86/include/asm/hardirq.h
+++ b/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;
diff --git a/arch/x86/kernel/time.c b/arch/x86/kernel/time.c
index dd5fbf4..c6eba2b 100644
--- a/arch/x86/kernel/time.c
+++ b/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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