linux-kernel - Re: [PATCH v2 7/7] backlight: gpio: use a helper variable for &pdev->dev

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Message-ID: <CAMRc=McGTk+i0SzWN7AvGu3deYbXX_rJX=7+dKRpKFPKM_qxDA@mail.gmail.com>
Date:   Tue, 23 Jul 2019 08:29:52 +0200
From:   Bartosz Golaszewski <brgl@...ev.pl>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:     Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        Rich Felker <dalias@...c.org>,
        Lee Jones <lee.jones@...aro.org>,
        Daniel Thompson <daniel.thompson@...aro.org>,
        Jingoo Han <jingoohan1@...il.com>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        linux-sh@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        dri-devel@...ts.freedesktop.org, linux-fbdev@...r.kernel.org,
        Bartosz Golaszewski <bgolaszewski@...libre.com>
Subject: Re: [PATCH v2 7/7] backlight: gpio: use a helper variable for &pdev->dev

pon., 22 lip 2019 o 18:09 Andy Shevchenko
<andriy.shevchenko@...ux.intel.com> napisał(a):
>
> On Mon, Jul 22, 2019 at 05:03:02PM +0200, Bartosz Golaszewski wrote:
> > From: Bartosz Golaszewski <bgolaszewski@...libre.com>
> >
> > Instead of dereferencing pdev each time, use a helper variable for
> > the associated device pointer.
>
> >  static int gpio_backlight_probe(struct platform_device *pdev)
> >  {
> > -     struct gpio_backlight_platform_data *pdata =
> > -             dev_get_platdata(&pdev->dev);
> > +     struct gpio_backlight_platform_data *pdata;
> >       struct backlight_properties props;
> >       struct backlight_device *bl;
> >       struct gpio_backlight *gbl;
> >       enum gpiod_flags flags;
> > +     struct device *dev;
>
> Can't we do
>
>         struct device dev = &pdev->dev;
>         struct gpio_backlight_platform_data *pdata = dev_get_platdata(dev);
>
> ? It fits 80 nicely.
>

IMO it's more readable like that with the reverse christmas tree layout.

Bart