Re: [PATCH] extcon: maxim: Fix missing IRQF_ONESHOT as only threaded handler

From: Krzysztof Kozlowski
Date: Fri Apr 16 2021 - 04:43:36 EST


On 15/04/2021 13:36, zhuguangqing83@xxxxxxxxx wrote:
> From: Guangqing Zhu <zhuguangqing83@xxxxxxxxx>
>
> Coccinelle noticed:
> 1. drivers/extcon/extcon-max14577.c:699:8-33: ERROR: Threaded IRQ with
> no primary handler requested without IRQF_ONESHOT
> 2. drivers/extcon/extcon-max77693.c:1143:8-33: ERROR: Threaded IRQ with
> no primary handler requested without IRQF_ONESHOT
> 3. drivers/extcon/extcon-max77843.c:907:8-33: ERROR: Threaded IRQ with
> no primary handler requested without IRQF_ONESHOT
> 4. drivers/extcon/extcon-max8997.c:665:8-28: ERROR: Threaded IRQ with
> no primary handler requested without IRQF_ONESHOT
>
> Signed-off-by: Guangqing Zhu <zhuguangqing83@xxxxxxxxx>
> ---
> drivers/extcon/extcon-max14577.c | 2 +-
> drivers/extcon/extcon-max77693.c | 2 +-
> drivers/extcon/extcon-max77843.c | 3 ++-
> drivers/extcon/extcon-max8997.c | 2 +-
> 4 files changed, 5 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/extcon/extcon-max14577.c b/drivers/extcon/extcon-max14577.c
> index ace523924e58..af15a9e00ee9 100644
> --- a/drivers/extcon/extcon-max14577.c
> +++ b/drivers/extcon/extcon-max14577.c
> @@ -698,7 +698,7 @@ static int max14577_muic_probe(struct platform_device *pdev)
>
> ret = devm_request_threaded_irq(&pdev->dev, virq, NULL,
> max14577_muic_irq_handler,
> - IRQF_NO_SUSPEND,
> + IRQF_NO_SUSPEND | IRQF_ONESHOT,

The same with all other patches for IRQF_ONESHOT which are send recently:
1. On what board did you test it?
2. Is this just blind patch from Coccinelle without investigation
whether it is needed (hint: it's not needed here, it does not use
default primary handler).
3. If you think otherwise, please explain.

Best regards,
Krzysztof