perf/x86/amd: Remove unused variable 'hwc'

'hwc' is never used in amd_pmu_enable_all(), so remove it.

Signed-off-by: Zucheng Zheng <zhengzucheng@huawei.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20220421111031.174698-1-zhengzucheng@huawei.com

diff --git a/arch/x86/events/amd/core.c b/arch/x86/events/amd/core.c
index 262e39a850316793cd27c7c946ea126be1d30d3d..d81eac2284eadfaf5d5f4959a2c9ed1a66aa5e38 100644 (file)
--- a/arch/x86/events/amd/core.c
+++ b/arch/x86/events/amd/core.c
@@ -771,14 +771,11 @@ static void amd_pmu_enable_event(struct perf_event *event)
 static void amd_pmu_enable_all(int added)
 {
        struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
-       struct hw_perf_event *hwc;
        int idx;
 
        amd_brs_enable_all();
 
        for (idx = 0; idx < x86_pmu.num_counters; idx++) {
-               hwc = &cpuc->events[idx]->hw;
-
                /* only activate events which are marked as active */
                if (!test_bit(idx, cpuc->active_mask))
                        continue;