Merge tag 'v2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

[mv-sheeva.git] / arch / x86 / kernel / time.c

diff --git a/arch/x86/kernel/time.c b/arch/x86/kernel/time.c
index fb5cc5e14cfafb6ed62c4de2929b3bfa0a2e91e9..25a28a245937989d2de9abfb94d96835a1b01615 100644 (file)
--- a/arch/x86/kernel/time.c
+++ b/arch/x86/kernel/time.c
@@ -22,10 +22,6 @@
 #include <asm/hpet.h>
 #include <asm/time.h>
 
-#if defined(CONFIG_X86_32) && defined(CONFIG_X86_IO_APIC)
-int timer_ack;
-#endif
-
 #ifdef CONFIG_X86_64
 volatile unsigned long __jiffies __section_jiffies = INITIAL_JIFFIES;
 #endif
@@ -63,20 +59,6 @@ static irqreturn_t timer_interrupt(int irq, void *dev_id)
        /* Keep nmi watchdog up to date */
        inc_irq_stat(irq0_irqs);
 
-       /* Optimized out for !IO_APIC and x86_64 */
-       if (timer_ack) {
-               /*
-                * Subtle, when I/O APICs are used we have to ack timer IRQ
-                * manually to deassert NMI lines for the watchdog if run
-                * on an 82489DX-based system.
-                */
-               raw_spin_lock(&i8259A_lock);
-               outb(0x0c, PIC_MASTER_OCW3);
-               /* Ack the IRQ; AEOI will end it automatically. */
-               inb(PIC_MASTER_POLL);
-               raw_spin_unlock(&i8259A_lock);
-       }
-
        global_clock_event->event_handler(global_clock_event);
 
        /* MCA bus quirk: Acknowledge irq0 by setting bit 7 in port 0x61 */