[PATCH] arm_pmu: move to use request_irq by IRQF_NO_AUTOEN flag

tiantao (H) tiantao6 at huawei.com
Tue Jun 1 06:00:22 PDT 2021


在 2021/6/1 20:46, Will Deacon 写道:
> On Thu, May 06, 2021 at 08:02:59PM +0800, Tian Tao wrote:
>> request_irq() after setting IRQ_NOAUTOEN as below
>> irq_set_status_flags(irq, IRQ_NOAUTOEN);
>> request_irq(dev, irq...);
>> can be replaced by request_irq() with IRQF_NO_AUTOEN flag.
>>
>> this patch is made base on "add IRQF_NO_AUTOEN for request_irq" which
>> is being merged: https://lore.kernel.org/patchwork/patch/1388765/
>>
>> Signed-off-by: Tian Tao <tiantao6 at hisilicon.com>
>> ---
>>   drivers/perf/arm_pmu.c | 4 +---
>>   1 file changed, 1 insertion(+), 3 deletions(-)
>>
>> diff --git a/drivers/perf/arm_pmu.c b/drivers/perf/arm_pmu.c
>> index d4f7f1f..6bcfc52 100644
>> --- a/drivers/perf/arm_pmu.c
>> +++ b/drivers/perf/arm_pmu.c
>> @@ -644,11 +644,9 @@ int armpmu_request_irq(int irq, int cpu)
>>   		}
>>   
>>   		irq_flags = IRQF_PERCPU |
>> -			    IRQF_NOBALANCING |
>> +			    IRQF_NOBALANCING | IRQF_NO_AUTOEN |
>>   			    IRQF_NO_THREAD;
>>   
>> -		irq_set_status_flags(irq, IRQ_NOAUTOEN);
>> -
>>   		err = request_nmi(irq, handler, irq_flags, "arm-pmu",
>>   				  per_cpu_ptr(&cpu_armpmu, cpu));
> Please can you update drivers/perf/qcom_l2_pmu.c at the same time?
ok I will send v2.
>
> Will
> .
>




More information about the linux-arm-kernel mailing list