Merge branch 'audit.b39' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit...

[linux-2.6] / arch / x86_64 / kernel / hpet.c

diff --git a/arch/x86_64/kernel/hpet.c b/arch/x86_64/kernel/hpet.c
index 8cf0b8a13778ae0e497ffd228fb24f9eef8d163d..e2d1b912e15469c1110553fa3ebc27c97fc3af9e 100644 (file)
--- a/arch/x86_64/kernel/hpet.c
+++ b/arch/x86_64/kernel/hpet.c
@@ -133,7 +133,7 @@ struct clocksource clocksource_hpet = {
        .vread          = vread_hpet,
 };
 
-int hpet_arch_init(void)
+int __init hpet_arch_init(void)
 {
        unsigned int id;
        u64 tmp;
@@ -190,7 +190,8 @@ int hpet_reenable(void)
  */
 
 #define TICK_COUNT 100000000
-#define TICK_MIN   5000
+#define SMI_THRESHOLD 50000
+#define MAX_TRIES  5
 
 /*
  * Some platforms take periodic SMI interrupts with 5ms duration. Make sure none
@@ -198,13 +199,15 @@ int hpet_reenable(void)
  */
 static void __init read_hpet_tsc(int *hpet, int *tsc)
 {
-       int tsc1, tsc2, hpet1;
+       int tsc1, tsc2, hpet1, i;
 
-       do {
+       for (i = 0; i < MAX_TRIES; i++) {
                tsc1 = get_cycles_sync();
                hpet1 = hpet_readl(HPET_COUNTER);
                tsc2 = get_cycles_sync();
-       } while (tsc2 - tsc1 > TICK_MIN);
+               if ((tsc2 - tsc1) < SMI_THRESHOLD)
+                       break;
+       }
        *hpet = hpet1;
        *tsc = tsc2;
 }
@@ -436,7 +439,7 @@ int hpet_rtc_dropped_irq(void)
        return 1;
 }
 
-irqreturn_t hpet_rtc_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+irqreturn_t hpet_rtc_interrupt(int irq, void *dev_id)
 {
        struct rtc_time curr_time;
        unsigned long rtc_int_flag = 0;