bitops: Ensure the compile time HWEIGHT is only used for such
[linux-2.6.git] / arch / x86 / kernel / cpu / perf_event.c
index 5b91992..96cfc1a 100644 (file)
@@ -93,13 +93,16 @@ struct cpu_hw_events {
        struct perf_event       *event_list[X86_PMC_IDX_MAX]; /* in enabled order */
 };
 
-#define EVENT_CONSTRAINT(c, n, m) {    \
+#define __EVENT_CONSTRAINT(c, n, m, w) {\
        { .idxmsk64[0] = (n) },         \
        .code = (c),                    \
        .cmask = (m),                   \
-       .weight = HWEIGHT64((u64)(n)),  \
+       .weight = (w),                  \
 }
 
+#define EVENT_CONSTRAINT(c, n, m)      \
+       __EVENT_CONSTRAINT(c, n, m, HWEIGHT(n))
+
 #define INTEL_EVENT_CONSTRAINT(c, n)   \
        EVENT_CONSTRAINT(c, n, INTEL_ARCH_EVTSEL_MASK)
 
@@ -2622,7 +2625,8 @@ void __init init_hw_perf_events(void)
        register_die_notifier(&perf_event_nmi_notifier);
 
        unconstrained = (struct event_constraint)
-               EVENT_CONSTRAINT(0, (1ULL << x86_pmu.num_events) - 1, 0);
+               __EVENT_CONSTRAINT(0, (1ULL << x86_pmu.num_events) - 1,
+                                  0, x86_pmu.num_events);
 
        pr_info("... version:                %d\n",     x86_pmu.version);
        pr_info("... bit width:              %d\n",     x86_pmu.event_bits);