linux-kernel - Re: [PATCH 09/11] mmc: sdhci: Drop redundant check in sdhci_ack_sdio

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Message-ID: <20190905185708.GB133864@google.com>
Date:   Thu, 5 Sep 2019 11:57:08 -0700
From:   Matthias Kaehlcke <mka@...omium.org>
To:     Ulf Hansson <ulf.hansson@...aro.org>
Cc:     linux-mmc@...r.kernel.org, Adrian Hunter <adrian.hunter@...el.com>,
        Douglas Anderson <dianders@...omium.org>,
        Shawn Lin <shawn.lin@...k-chips.com>,
        Jaehoon Chung <jh80.chung@...sung.com>,
        Yong Mao <yong.mao@...iatek.com>,
        Chaotian Jing <chaotian.jing@...iatek.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 09/11] mmc: sdhci: Drop redundant check in
 sdhci_ack_sdio_irq()

On Tue, Sep 03, 2019 at 04:22:05PM +0200, Ulf Hansson wrote:
> The sdhci_ack_sdio_irq() is called only when SDIO IRQs are enabled.
> Therefore, let's drop the redundant check of the internal
> SDHCI_SDIO_IRQ_ENABLED flag and just re-enable the IRQs immediately.
> 
> Signed-off-by: Ulf Hansson <ulf.hansson@...aro.org>
> ---
>  drivers/mmc/host/sdhci.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
> index c1ebc26846db..2a9be044448a 100644
> --- a/drivers/mmc/host/sdhci.c
> +++ b/drivers/mmc/host/sdhci.c
> @@ -2161,8 +2161,7 @@ static void sdhci_ack_sdio_irq(struct mmc_host *mmc)
>  	unsigned long flags;
>  
>  	spin_lock_irqsave(&host->lock, flags);
> -	if (host->flags & SDHCI_SDIO_IRQ_ENABLED)
> -		sdhci_enable_sdio_irq_nolock(host, true);
> +	sdhci_enable_sdio_irq_nolock(host, true);
>  	spin_unlock_irqrestore(&host->lock, flags);
>  }


FWIW:

Reviewed-by:  Matthias Kaehlcke <mka@...omium.org>