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authorMark Rutland <mark.rutland@arm.com>2018-05-10 11:35:15 +0100
committerWill Deacon <will.deacon@arm.com>2018-05-21 18:07:05 +0100
commit0788f1e97324d8378e860dc2560699ddc6f3aef9 (patch)
treee74a421c69c90cf2c1753907a74620bee799ee71 /arch/arm64/kernel/perf_event.c
parent5c591304e710339a75a9f0f9f3f085aa4109e55d (diff)
arm_pmu: simplify arm_pmu::handle_irq
The arm_pmu::handle_irq() callback has the same prototype as a generic IRQ handler, taking the IRQ number and a void pointer argument which it must convert to an arm_pmu pointer. This means that all arm_pmu::handle_irq() take an IRQ number they never use, and all must explicitly cast the void pointer to an arm_pmu pointer. Instead, let's change arm_pmu::handle_irq to take an arm_pmu pointer, allowing these casts to be removed. The redundant IRQ number parameter is also removed. Suggested-by: Hoeun Ryu <hoeun.ryu@lge.com> Signed-off-by: Mark Rutland <mark.rutland@arm.com> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm64/kernel/perf_event.c')
-rw-r--r--arch/arm64/kernel/perf_event.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c
index 85a251b6dfa8..33147aacdafd 100644
--- a/arch/arm64/kernel/perf_event.c
+++ b/arch/arm64/kernel/perf_event.c
@@ -670,11 +670,10 @@ static void armv8pmu_disable_event(struct perf_event *event)
raw_spin_unlock_irqrestore(&events->pmu_lock, flags);
}
-static irqreturn_t armv8pmu_handle_irq(int irq_num, void *dev)
+static irqreturn_t armv8pmu_handle_irq(struct arm_pmu *cpu_pmu)
{
u32 pmovsr;
struct perf_sample_data data;
- struct arm_pmu *cpu_pmu = (struct arm_pmu *)dev;
struct pmu_hw_events *cpuc = this_cpu_ptr(cpu_pmu->hw_events);
struct pt_regs *regs;
int idx;