linux-kernel - Re: [PATCH] char: hw_random: xgene-rng: removed unneeded call to platform_set

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Date:   Fri, 1 Sep 2023 09:09:23 +0300
From:   Alexandru Ardelean <alex@...uggie.ro>
To:     Martin Kaiser <lists@...ser.cx>
Cc:     Andrei Coardos <aboutphysycs@...il.com>,
        linux-kernel@...r.kernel.org, linux-crypto@...r.kernel.org,
        yuzhe@...china.com, u.kleine-koenig@...gutronix.de,
        herbert@...dor.apana.org.au, olivia@...enic.com
Subject: Re: [PATCH] char: hw_random: xgene-rng: removed unneeded call to platform_set_drvdata()

On Mon, Aug 28, 2023 at 2:48 PM Martin Kaiser <lists@...ser.cx> wrote:
>
> Andrei Coardos (aboutphysycs@...il.com) wrote:
>
> > This function call was found to be unnecessary as there is no equivalent
> > platform_get_drvdata() call to access the private data of the driver. Also,
> > the private data is defined in this driver, so there is no risk of it being
> > accessed outside of this driver file.
>
> > Signed-off-by: Andrei Coardos <aboutphysycs@...il.com>
> > ---
> >  drivers/char/hw_random/xgene-rng.c | 1 -
> >  1 file changed, 1 deletion(-)
>
> > diff --git a/drivers/char/hw_random/xgene-rng.c b/drivers/char/hw_random/xgene-rng.c
> > index 7c8f3cb7c6af..9d64b5931a27 100644
> > --- a/drivers/char/hw_random/xgene-rng.c
> > +++ b/drivers/char/hw_random/xgene-rng.c
> > @@ -321,7 +321,6 @@ static int xgene_rng_probe(struct platform_device *pdev)
> >               return -ENOMEM;
>
> >       ctx->dev = &pdev->dev;
> > -     platform_set_drvdata(pdev, ctx);
>
> >       ctx->csr_base = devm_platform_ioremap_resource(pdev, 0);
> >       if (IS_ERR(ctx->csr_base))
> > --
> > 2.34.1
>
> This one's ok, too. 67fb1e295839 ("hwrng: xgene - Simplify using
> devm_clk_get_optional_enabled()") removed the platform_get_drvdata call.
>

Reviewed-by: Alexandru Ardelean <alex@...uggie.ro>

> Reviewed-by: Martin Kaiser <martin@...ser.cx>