1 files changed, 7 insertions, 8 deletions

diff --git a/arch/x86/kernel/time_32.c b/arch/x86/kernel/time_32.c
index 2ff21f398934..77b400f06ea2 100644
--- a/arch/x86/kernel/time_32.c
+++ b/arch/x86/kernel/time_32.c
@@ -36,12 +36,10 @@
 #include <asm/arch_hooks.h>
 #include <asm/hpet.h>
 #include <asm/time.h>
+#include <asm/timer.h>
 
 #include "do_timer.h"
 
-unsigned int cpu_khz;   /* Detected as we calibrate the TSC */
-EXPORT_SYMBOL(cpu_khz);
-
 int timer_ack;
 
 unsigned long profile_pc(struct pt_regs *regs)
@@ -49,10 +47,9 @@ unsigned long profile_pc(struct pt_regs *regs)
         unsigned long pc = instruction_pointer(regs);
 
 #ifdef CONFIG_SMP
-        if (!v8086_mode(regs) && SEGMENT_IS_KERNEL_CODE(regs->cs) &&
-            in_lock_functions(pc)) {
+        if (!user_mode_vm(regs) && in_lock_functions(pc)) {
 #ifdef CONFIG_FRAME_POINTER
-                return *(unsigned long *)(regs->bp + 4);
+                return *(unsigned long *)(regs->bp + sizeof(long));
 #else
                 unsigned long *sp = (unsigned long *)&regs->sp;
 
@@ -84,8 +81,7 @@ irqreturn_t timer_interrupt(int irq, void *dev_id)
         if (timer_ack) {
                 /*
                  * Subtle, when I/O APICs are used we have to ack timer IRQ
-                 * manually to reset the IRR bit for do_slow_gettimeoffset().
-                 * This will also deassert NMI lines for the watchdog if run
+                 * manually to deassert NMI lines for the watchdog if run
                  * on an 82489DX-based system.
                  */
                 spin_lock(&i8259A_lock);
@@ -98,6 +94,7 @@ irqreturn_t timer_interrupt(int irq, void *dev_id)
 
         do_timer_interrupt_hook();
 
+#ifdef CONFIG_MCA
         if (MCA_bus) {
                 /* The PS/2 uses level-triggered interrupts.  You can't
                 turn them off, nor would you want to (any attempt to
@@ -111,6 +108,7 @@ irqreturn_t timer_interrupt(int irq, void *dev_id)
                 u8 irq_v = inb_p( 0x61 );       /* read the current state */
                 outb_p( irq_v|0x80, 0x61 );     /* reset the IRQ */
         }
+#endif
 
         return IRQ_HANDLED;
 }
@@ -133,6 +131,7 @@ void __init hpet_time_init(void)
  */
 void __init time_init(void)
 {
+        pre_time_init_hook();
         tsc_init();
         late_time_init = choose_time_init();
 }