Re: [PATCH v2 1/2] mmc: sdhci: use IS_REACHABLE(CONFIG_LEDS_CLASS) to enable LED code

From: Adrian Hunter
Date: Wed Apr 20 2016 - 02:18:47 EST


On 14/04/16 07:19, Masahiro Yamada wrote:
> defined(CONFIG_LEDS_CLASS) || (defined(CONFIG_LEDS_CLASS_MODULE) && \
> defined(CONFIG_MMC_SDHCI_MODULE))
>
> is equivalent to:
>
> defined(CONFIG_LEDS_CLASS) || (defined(CONFIG_LEDS_CLASS_MODULE) && \
> defined(MODULE))
>
> and it can also be written shortly as:
>
> IS_REACHABLE(CONFIG_LEDS_CLASS)
>
> Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>

Acked-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>


> ---
>
> Changes in v2:
> - Rebase on the next branch (7766e58f5be39dcc35d30a703422a3d0b8ec8c0c)
>
> drivers/mmc/host/sdhci.c | 4 +---
> 1 file changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
> index b284924..eedc18a 100644
> --- a/drivers/mmc/host/sdhci.c
> +++ b/drivers/mmc/host/sdhci.c
> @@ -259,9 +259,7 @@ static void __sdhci_led_deactivate(struct sdhci_host *host)
> sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL);
> }
>
> -#if defined(CONFIG_LEDS_CLASS) || (defined(CONFIG_LEDS_CLASS_MODULE) && \
> - defined(CONFIG_MMC_SDHCI_MODULE))
> -
> +#if IS_REACHABLE(CONFIG_LEDS_CLASS)
> static void sdhci_led_control(struct led_classdev *led,
> enum led_brightness brightness)
> {
>