linux-kernel - Re: [PATCH v2 1/4] pinctrl: s32: use of_device_get_match

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Date:   Tue, 21 Mar 2023 09:32:32 +0200
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Chester Lin <clin@...e.com>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        NXP S32 Linux Team <s32@....com>,
        linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        Ghennadi Procopciuc <Ghennadi.Procopciuc@....nxp.com>,
        Andrei Stefanescu <andrei.stefanescu@....com>,
        Radu Pirea <radu-nicolae.pirea@....com>,
        Andreas Färber <afaerber@...e.de>,
        Matthias Brugger <mbrugger@...e.com>
Subject: Re: [PATCH v2 1/4] pinctrl: s32: use of_device_get_match_data() to
 get device data

On Tue, Mar 21, 2023 at 6:44 AM Chester Lin <clin@...e.com> wrote:
> On Mon, Mar 20, 2023 at 06:59:41PM +0200, Andy Shevchenko wrote:
> > On Mon, Mar 20, 2023 at 6:39 PM Chester Lin <clin@...e.com> wrote:

...

> > > +       soc_info = (struct s32_pinctrl_soc_info *)
> > > +                       of_device_get_match_data(&pdev->dev);
> >
> > Drop the ugly casting, it's not needed.
>
> Actually it's used for suppressing the compiler warning since some members in
> this soc_info need to be filled by pinctrl-s32cc.

Yes, that's one way to solve this.

...

> +       info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
> +       if (!info)
> +               return -ENOMEM;
> +
> +       memcpy(info, soc_data, sizeof(*info));

Right, but use devm_kmemdup() instead.

-- 
With Best Regards,
Andy Shevchenko