linux-kernel - Re: [PATCH v2 1/3] mmc: sdhci-s3c: simplify getting of_device

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Date:   Thu, 15 Apr 2021 14:02:43 +0200
From:   Ulf Hansson <ulf.hansson@...aro.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
Cc:     Ben Dooks <ben-linux@...ff.org>,
        Jaehoon Chung <jh80.chung@...sung.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        linux-mmc <linux-mmc@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Sylwester Nawrocki <snawrocki@...nel.org>,
        Marek Szyprowski <m.szyprowski@...sung.com>
Subject: Re: [PATCH v2 1/3] mmc: sdhci-s3c: simplify getting of_device_id
 match data

On Thu, 15 Apr 2021 at 10:44, Krzysztof Kozlowski
<krzysztof.kozlowski@...onical.com> wrote:
>
> Use of_device_get_match_data() to make the code slightly smaller and to
> remove the of_device_id table forward declaration.
>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>

Applied for next, thanks!

Kind regards
Uffe


>
> ---
>
> Changes since v1:
> 1. Rewrite the commit msg as it is not a NULL pointer dereference.
> ---
>  drivers/mmc/host/sdhci-s3c.c | 12 +++---------
>  1 file changed, 3 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
> index f48a788a9d3d..8e1dca625620 100644
> --- a/drivers/mmc/host/sdhci-s3c.c
> +++ b/drivers/mmc/host/sdhci-s3c.c
> @@ -20,6 +20,7 @@
>  #include <linux/gpio.h>
>  #include <linux/module.h>
>  #include <linux/of.h>
> +#include <linux/of_device.h>
>  #include <linux/of_gpio.h>
>  #include <linux/pm.h>
>  #include <linux/pm_runtime.h>
> @@ -461,19 +462,12 @@ static int sdhci_s3c_parse_dt(struct device *dev,
>  }
>  #endif
>
> -#ifdef CONFIG_OF
> -static const struct of_device_id sdhci_s3c_dt_match[];
> -#endif
> -
>  static inline struct sdhci_s3c_drv_data *sdhci_s3c_get_driver_data(
>                         struct platform_device *pdev)
>  {
>  #ifdef CONFIG_OF
> -       if (pdev->dev.of_node) {
> -               const struct of_device_id *match;
> -               match = of_match_node(sdhci_s3c_dt_match, pdev->dev.of_node);
> -               return (struct sdhci_s3c_drv_data *)match->data;
> -       }
> +       if (pdev->dev.of_node)
> +               return (struct sdhci_s3c_drv_data *)of_device_get_match_data(&pdev->dev);
>  #endif
>         return (struct sdhci_s3c_drv_data *)
>                         platform_get_device_id(pdev)->driver_data;
> --
> 2.25.1
>