perf_counter, x86: consistent use of type int for counter index

The type of counter index is sometimes implemented as unsigned
int. This patch changes this to have a consistent usage of int.

[ Impact: cleanup ]

Signed-off-by: Robert Richter <robert.richter@amd.com>
Cc: Paul Mackerras <paulus@samba.org>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1241002046-8832-21-git-send-email-robert.richter@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/arch/x86/kernel/cpu/perf_counter.c b/arch/x86/kernel/cpu/perf_counter.c
index f7fd4a3..d8beebe 100644 (file)
--- a/arch/x86/kernel/cpu/perf_counter.c
+++ b/arch/x86/kernel/cpu/perf_counter.c
@@ -459,7 +459,7 @@ static void hw_perf_disable(int idx, u64 config)
 
 static inline void
 __pmc_fixed_disable(struct perf_counter *counter,
-                   struct hw_perf_counter *hwc, unsigned int __idx)
+                   struct hw_perf_counter *hwc, int __idx)
 {
        int idx = __idx - X86_PMC_IDX_FIXED;
        u64 ctrl_val, mask;
@@ -474,7 +474,7 @@ __pmc_fixed_disable(struct perf_counter *counter,
 
 static inline void
 __x86_pmu_disable(struct perf_counter *counter,
-                 struct hw_perf_counter *hwc, unsigned int idx)
+                 struct hw_perf_counter *hwc, int idx)
 {
        if (unlikely(hwc->config_base == MSR_ARCH_PERFMON_FIXED_CTR_CTRL))
                __pmc_fixed_disable(counter, hwc, idx);
@@ -523,7 +523,7 @@ x86_perf_counter_set_period(struct perf_counter *counter,
 
 static inline void
 __pmc_fixed_enable(struct perf_counter *counter,
-                  struct hw_perf_counter *hwc, unsigned int __idx)
+                  struct hw_perf_counter *hwc, int __idx)
 {
        int idx = __idx - X86_PMC_IDX_FIXED;
        u64 ctrl_val, bits, mask;
@@ -691,7 +691,7 @@ static void x86_pmu_disable(struct perf_counter *counter)
 {
        struct cpu_hw_counters *cpuc = &__get_cpu_var(cpu_hw_counters);
        struct hw_perf_counter *hwc = &counter->hw;
-       unsigned int idx = hwc->idx;
+       int idx = hwc->idx;
 
        /*
         * Must be done before we disable, otherwise the nmi handler

diff --git a/include/linux/perf_counter.h b/include/linux/perf_counter.h
index c3db52d..41aed42 100644 (file)
--- a/include/linux/perf_counter.h
+++ b/include/linux/perf_counter.h
@@ -318,7 +318,7 @@ struct hw_perf_counter {
                        unsigned long                   config_base;
                        unsigned long                   counter_base;
                        int                             nmi;
-                       unsigned int                    idx;
+                       int                             idx;
                };
                union { /* software */
                        atomic64_t                      count;