linux-kernel - Re: [PATCH] drivers/edac: NO_IRQ removal from powerpc-only drivers

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Date:   Sat, 10 Sep 2016 16:53:20 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     Michael Ellerman <mpe@...erman.id.au>
Cc:     dougthompson@...ssion.com, mchehab@...nel.org,
        linux-edac@...r.kernel.org, linux-kernel@...r.kernel.org,
        linuxppc-dev@...abs.org, arnd@...db.de
Subject: Re: [PATCH] drivers/edac: NO_IRQ removal from powerpc-only drivers

On Sat, Sep 10, 2016 at 07:57:08PM +1000, Michael Ellerman wrote:
> We'd like to eventually remove NO_IRQ on powerpc, so remove usages of it
> from powerpc-only drivers.
> 
> Signed-off-by: Michael Ellerman <mpe@...erman.id.au>
> ---
>  drivers/edac/mpc85xx_edac.c | 6 +++---
>  drivers/edac/mv64x60_edac.c | 8 ++++----
>  drivers/edac/ppc4xx_edac.c  | 6 +++---
>  3 files changed, 10 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/edac/mpc85xx_edac.c b/drivers/edac/mpc85xx_edac.c
> index ca63d0da8889..e12b8e166a53 100644
> --- a/drivers/edac/mpc85xx_edac.c
> +++ b/drivers/edac/mpc85xx_edac.c
> @@ -267,7 +267,7 @@ static int mpc85xx_pci_err_probe(struct platform_device *op)
>  
>  	pdata = pci->pvt_info;
>  	pdata->name = "mpc85xx_pci_err";
> -	pdata->irq = NO_IRQ;
> +	pdata->irq = 0;
>  
>  	plat_data = op->dev.platform_data;
>  	if (!plat_data) {

So all of those pdata structs come from kzalloc() so you don't really
have to assign to 0 - simply kill the line.

> @@ -588,7 +588,7 @@ static int mpc85xx_l2_err_probe(struct platform_device *op)
>  
>  	pdata = edac_dev->pvt_info;
>  	pdata->name = "mpc85xx_l2_err";
> -	pdata->irq = NO_IRQ;
> +	pdata->irq = 0;
>  	edac_dev->dev = &op->dev;
>  	dev_set_drvdata(edac_dev->dev, edac_dev);
>  	edac_dev->ctl_name = pdata->name;
> @@ -1058,7 +1058,7 @@ static int mpc85xx_mc_err_probe(struct platform_device *op)
>  
>  	pdata = mci->pvt_info;
>  	pdata->name = "mpc85xx_mc_err";
> -	pdata->irq = NO_IRQ;
> +	pdata->irq = 0;
>  	mci->pdev = &op->dev;
>  	pdata->edac_idx = edac_mc_idx++;
>  	dev_set_drvdata(mci->pdev, mci);

That part went into drivers/edac/fsl_ddr_edac.c which is only the
freescale memory controller being shared between ARM and PPC, see

http://git.kernel.org/cgit/linux/kernel/git/bp/bp.git/log/?h=for-next

But that shouldn't change the issue wrt ->irq as now it is implicitly 0.

IOW, you can drop this hunk.

Please send v2 against the above branch or linux-next.

Thanks.

-- 
Regards/Gruss,
    Boris.

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