Re: [PATCH AUTOSEL 5.4 64/73] net: mvmdio: avoid error message for optional IRQ

[Chris Packham]

On Wed, 2020-03-18 at 16:53 -0400, Sasha Levin wrote:
> From: Chris Packham <chris.packham@xxxxxxxxxxxxxxxxxxx>
> 
> [ Upstream commit e1f550dc44a4d535da4e25ada1b0eaf8f3417929 ]
> 
> Per the dt-binding the interrupt is optional so use
> platform_get_irq_optional() instead of platform_get_irq(). Since
> commit 7723f4c5ecdb ("driver core: platform: Add an error message to
> platform_get_irq*()") platform_get_irq() produces an error message
> 
>   orion-mdio f1072004.mdio: IRQ index 0 not found
> 
> which is perfectly normal if one hasn't specified the optional property
> in the device tree.
> 
> Signed-off-by: Chris Packham <chris.packham@xxxxxxxxxxxxxxxxxxx>
> Reviewed-by: Andrew Lunn <andrew@xxxxxxx>
> Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
> ---
>  drivers/net/ethernet/marvell/mvmdio.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/net/ethernet/marvell/mvmdio.c b/drivers/net/ethernet/marvell/mvmdio.c
> index 0b9e851f3da4f..d2e2dc5384287 100644
> --- a/drivers/net/ethernet/marvell/mvmdio.c
> +++ b/drivers/net/ethernet/marvell/mvmdio.c
> @@ -347,7 +347,7 @@ static int orion_mdio_probe(struct platform_device *pdev)
>  	}
>  
>  
> -	dev->err_interrupt = platform_get_irq(pdev, 0);
> +	dev->err_interrupt = platform_get_irq_optional(pdev, 0);
>  	if (dev->err_interrupt > 0 &&
>  	    resource_size(r) < MVMDIO_ERR_INT_MASK + 4) {
>  		dev_err(&pdev->dev,
> @@ -364,8 +364,8 @@ static int orion_mdio_probe(struct platform_device *pdev)
>  		writel(MVMDIO_ERR_INT_SMI_DONE,
>  			dev->regs + MVMDIO_ERR_INT_MASK);
>  
> -	} else if (dev->err_interrupt == -EPROBE_DEFER) {
> -		ret = -EPROBE_DEFER;
> +	} else if (dev->err_interrupt < 0) {
> +		ret = dev->err_interrupt;
>  		goto out_mdio;
>  	}
>  

NAK.

Please don't apply this one. It caused a different bug and was
reverted.

Dave has just applied the correct one to net/master commit id is
fa2632f74e57bbc869c8ad37751a11b6147a3acc