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arm_pmu: simplify arm_pmu::handle_irq

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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>
This commit is contained in:
Mark Rutland 2018-05-10 11:35:15 +01:00 • committed by Will Deacon
parent 5c591304e7
commit 0788f1e973
6 changed files with 7 additions and 13 deletions
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2
include/linux/perf/arm_pmu.h
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@ -78,7 +78,7 @@ struct arm_pmu {
struct pmu pmu;
cpumask_t supported_cpus;
char *name;
irqreturn_t (*handle_irq)(int irq_num, void *dev);
irqreturn_t (*handle_irq)(struct arm_pmu *pmu);
void (*enable)(struct perf_event *event);
void (*disable)(struct perf_event *event);
int (*get_event_idx)(struct pmu_hw_events *hw_events,