1 files changed, 15 insertions, 16 deletions

diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index 086127ba580f..2dd704fa1299 100644
--- a/arch/x86/kernel/cpu/perf_event.c
+++ b/arch/x86/kernel/cpu/perf_event.c
@@ -133,8 +133,8 @@ struct x86_pmu {
         int             (*handle_irq)(struct pt_regs *);
         void            (*disable_all)(void);
         void            (*enable_all)(void);
-        void            (*enable)(struct hw_perf_event *, int);
-        void            (*disable)(struct hw_perf_event *, int);
+        void            (*enable)(struct perf_event *);
+        void            (*disable)(struct perf_event *);
         unsigned        eventsel;
         unsigned        perfctr;
         u64             (*event_map)(int);
@@ -845,7 +845,7 @@ void hw_perf_enable(void)
                         set_bit(hwc->idx, cpuc->active_mask);
                         cpuc->events[hwc->idx] = event;
 
-                        x86_pmu.enable(hwc, hwc->idx);
+                        x86_pmu.enable(event);
                         perf_event_update_userpage(event);
                 }
                 cpuc->n_added = 0;
@@ -858,15 +858,16 @@ void hw_perf_enable(void)
         x86_pmu.enable_all();
 }
 
-static inline void __x86_pmu_enable_event(struct hw_perf_event *hwc, int idx)
+static inline void __x86_pmu_enable_event(struct hw_perf_event *hwc)
 {
-        (void)checking_wrmsrl(hwc->config_base + idx,
+        (void)checking_wrmsrl(hwc->config_base + hwc->idx,
                               hwc->config | ARCH_PERFMON_EVENTSEL_ENABLE);
 }
 
-static inline void x86_pmu_disable_event(struct hw_perf_event *hwc, int idx)
+static inline void x86_pmu_disable_event(struct perf_event *event)
 {
-        (void)checking_wrmsrl(hwc->config_base + idx, hwc->config);
+        struct hw_perf_event *hwc = &event->hw;
+        (void)checking_wrmsrl(hwc->config_base + hwc->idx, hwc->config);
 }
 
 static DEFINE_PER_CPU(u64 [X86_PMC_IDX_MAX], pmc_prev_left);
@@ -927,11 +928,11 @@ x86_perf_event_set_period(struct perf_event *event)
         return ret;
 }
 
-static void x86_pmu_enable_event(struct hw_perf_event *hwc, int idx)
+static void x86_pmu_enable_event(struct perf_event *event)
 {
         struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
         if (cpuc->enabled)
-                __x86_pmu_enable_event(hwc, idx);
+                __x86_pmu_enable_event(&event->hw);
 }
 
 /*
@@ -974,13 +975,11 @@ static int x86_pmu_enable(struct perf_event *event)
 
 static int x86_pmu_start(struct perf_event *event)
 {
-        struct hw_perf_event *hwc = &event->hw;
-
-        if (hwc->idx == -1)
+        if (event->hw.idx == -1)
                 return -EAGAIN;
 
         x86_perf_event_set_period(event);
-        x86_pmu.enable(hwc, hwc->idx);
+        x86_pmu.enable(event);
 
         return 0;
 }
@@ -994,7 +993,7 @@ static void x86_pmu_unthrottle(struct perf_event *event)
                                 cpuc->events[hwc->idx] != event))
                 return;
 
-        x86_pmu.enable(hwc, hwc->idx);
+        x86_pmu.enable(event);
 }
 
 void perf_event_print_debug(void)
@@ -1059,7 +1058,7 @@ static void x86_pmu_stop(struct perf_event *event)
          * could reenable again:
          */
         clear_bit(idx, cpuc->active_mask);
-        x86_pmu.disable(hwc, idx);
+        x86_pmu.disable(event);
 
         /*
          * Drain the remaining delta count out of a event
@@ -1127,7 +1126,7 @@ static int x86_pmu_handle_irq(struct pt_regs *regs)
                         continue;
 
                 if (perf_event_overflow(event, 1, &data, regs))
-                        x86_pmu.disable(hwc, idx);
+                        x86_pmu.disable(event);
         }
 
         if (handled)