Re: [PATCH] regulator: Use IRQF_ONESHOT

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On 23/03/2021 13:12, Jian Dong wrote:
> From: Jian Dong <dongjian@xxxxxxxxxx>
> 
> Fixes coccicheck error:
> 
> drivers/regulator/mt6360-regulator.c:388:8-33: ERROR:
> drivers/regulator/pca9450-regulator.c:781:7-32: ERROR:
> drivers/regulator/slg51000-regulator.c:480:8-33: ERROR:
> drivers/regulator/qcom-labibb-regulator.c:364:8-33: ERROR:
> Threaded IRQ with no primary handler requested without IRQF_ONESHOT
> 
> Signed-off-by: Jian Dong <dongjian@xxxxxxxxxx>
> ---
>  drivers/regulator/mt6360-regulator.c      | 4 ++--
>  drivers/regulator/pca9450-regulator.c     | 2 +-
>  drivers/regulator/qcom-labibb-regulator.c | 3 ++-
>  drivers/regulator/slg51000-regulator.c    | 4 ++--
>  4 files changed, 7 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/regulator/mt6360-regulator.c b/drivers/regulator/mt6360-regulator.c
> index 15308ee..947350d 100644
> --- a/drivers/regulator/mt6360-regulator.c
> +++ b/drivers/regulator/mt6360-regulator.c
> @@ -385,8 +385,8 @@ static int mt6360_regulator_irq_register(struct platform_device *pdev,
>  			return irq;
>  		}
>  
> -		ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, irq_desc->handler, 0,
> -						irq_desc->name, rdev);
> +		ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, irq_desc->handler,
> +					IRQF_ONESHOT, irq_desc->name, rdev);

This does not look like trivial rename/replace fix. This should be
tested but it looks that you just did what coccinelle asked for, without
testing.

>  		if (ret) {
>  			dev_err(&pdev->dev, "Fail to request %s irq\n", irq_desc->name);
>  			return ret;
> diff --git a/drivers/regulator/pca9450-regulator.c b/drivers/regulator/pca9450-regulator.c
> index 2f7ee21..d4bc1c3 100644
> --- a/drivers/regulator/pca9450-regulator.c
> +++ b/drivers/regulator/pca9450-regulator.c
> @@ -780,7 +780,7 @@ static int pca9450_i2c_probe(struct i2c_client *i2c,
>  
>  	ret = devm_request_threaded_irq(pca9450->dev, pca9450->irq, NULL,
>  					pca9450_irq_handler,
> -					(IRQF_TRIGGER_FALLING | IRQF_ONESHOT),
> +					IRQF_TRIGGER_FALLING | IRQF_ONESHOT,

How this is related to the missing IRQF_ONESHOT?

>  					"pca9450-irq", pca9450);
>  	if (ret != 0) {
>  		dev_err(pca9450->dev, "Failed to request IRQ: %d\n",
> diff --git a/drivers/regulator/qcom-labibb-regulator.c b/drivers/regulator/qcom-labibb-regulator.c
> index de25e32..cac5fd5 100644
> --- a/drivers/regulator/qcom-labibb-regulator.c
> +++ b/drivers/regulator/qcom-labibb-regulator.c
> @@ -362,7 +362,8 @@ static int qcom_labibb_set_ocp(struct regulator_dev *rdev)
>  		return ret;
>  
>  	return devm_request_threaded_irq(vreg->dev, vreg->ocp_irq, NULL,
> -					 qcom_labibb_ocp_isr, irq_flags,
> +					 qcom_labibb_ocp_isr,
> +					 irq_flags | IRQF_ONESHOT,
>  					 ocp_irq_name, vreg);
>  }
>  
> diff --git a/drivers/regulator/slg51000-regulator.c b/drivers/regulator/slg51000-regulator.c
> index 75a941f..3f310ab 100644
> --- a/drivers/regulator/slg51000-regulator.c
> +++ b/drivers/regulator/slg51000-regulator.c
> @@ -479,8 +479,8 @@ static int slg51000_i2c_probe(struct i2c_client *client)
>  	if (chip->chip_irq) {
>  		ret = devm_request_threaded_irq(dev, chip->chip_irq, NULL,
>  						slg51000_irq_handler,
> -						(IRQF_TRIGGER_HIGH |
> -						IRQF_ONESHOT),
> +						IRQF_TRIGGER_HIGH |
> +						IRQF_ONESHOT,
>  						"slg51000-irq", chip);

How this is related to the missing IRQF_ONESHOT?

Best regards,
Krzysztof



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