[PATCH] x86/perf/amd: remove set but not used variable 'active'

From: Wang Hai
Date: Sat Oct 26 2019 - 08:10:01 EST


Fix the following gcc warning:

arch/x86/events/amd/core.c: In function amd_pmu_handle_irq:
arch/x86/events/amd/core.c:656:6: warning: variable active set but not
used [-Wunused-but-set-variable]

Fixes: df4d29732fda ("perf/x86/amd: Change/fix NMI latency mitigation to use a timestamp")
Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Wang Hai <wanghai38@xxxxxxxxxx>
---
arch/x86/events/amd/core.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/events/amd/core.c b/arch/x86/events/amd/core.c
index 64c3e70..b7f2bfb 100644
--- a/arch/x86/events/amd/core.c
+++ b/arch/x86/events/amd/core.c
@@ -653,14 +653,14 @@ static void amd_pmu_disable_event(struct perf_event *event)
static int amd_pmu_handle_irq(struct pt_regs *regs)
{
struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
- int active, handled;
+ int handled;

/*
* Obtain the active count before calling x86_pmu_handle_irq() since
* it is possible that x86_pmu_handle_irq() may make a counter
* inactive (through x86_pmu_stop).
*/
- active = __bitmap_weight(cpuc->active_mask, X86_PMC_IDX_MAX);
+ __bitmap_weight(cpuc->active_mask, X86_PMC_IDX_MAX);

/* Process any counter overflows */
handled = x86_pmu_handle_irq(regs);
--
1.8.3.1