linux-kernel - Re: [PATCH 098/141] mmc: sdhci-of-arasan: Fix fall-through warnings for Clang

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Message-ID: <ae070e37-f631-d016-d436-92f59a0e59e1@xilinx.com>
Date:   Mon, 23 Nov 2020 08:00:35 +0100
From:   Michal Simek <michal.simek@...inx.com>
To:     "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        Michal Simek <michal.simek@...inx.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        "Ulf Hansson" <ulf.hansson@...aro.org>
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <linux-mmc@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-hardening@...r.kernel.org>
Subject: Re: [PATCH 098/141] mmc: sdhci-of-arasan: Fix fall-through warnings
 for Clang



On 20. 11. 20 19:37, Gustavo A. R. Silva wrote:
> In preparation to enable -Wimplicit-fallthrough for Clang, fix multiple
> warnings by explicitly adding multiple break statements instead of
> letting the code fall through to the next case.
> 
> Link: https://github.com/KSPP/linux/issues/115
> Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org>
> ---
>  drivers/mmc/host/sdhci-of-arasan.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/drivers/mmc/host/sdhci-of-arasan.c b/drivers/mmc/host/sdhci-of-arasan.c
> index 829ccef87426..1f7e42b6ced5 100644
> --- a/drivers/mmc/host/sdhci-of-arasan.c
> +++ b/drivers/mmc/host/sdhci-of-arasan.c
> @@ -627,6 +627,7 @@ static int sdhci_zynqmp_sdcardclk_set_phase(struct clk_hw *hw, int degrees)
>  	case MMC_TIMING_MMC_HS200:
>  		/* For 200MHz clock, 8 Taps are available */
>  		tap_max = 8;
> +		break;
>  	default:
>  		break;
>  	}
> @@ -695,6 +696,7 @@ static int sdhci_zynqmp_sampleclk_set_phase(struct clk_hw *hw, int degrees)
>  	case MMC_TIMING_MMC_HS200:
>  		/* For 200MHz clock, 30 Taps are available */
>  		tap_max = 30;
> +		break;
>  	default:
>  		break;
>  	}
> @@ -760,6 +762,7 @@ static int sdhci_versal_sdcardclk_set_phase(struct clk_hw *hw, int degrees)
>  	case MMC_TIMING_MMC_HS200:
>  		/* For 200MHz clock, 8 Taps are available */
>  		tap_max = 8;
> +		break;
>  	default:
>  		break;
>  	}
> @@ -831,6 +834,7 @@ static int sdhci_versal_sampleclk_set_phase(struct clk_hw *hw, int degrees)
>  	case MMC_TIMING_MMC_HS200:
>  		/* For 200MHz clock, 30 Taps are available */
>  		tap_max = 30;
> +		break;
>  	default:
>  		break;
>  	}
> 

No problem with it.

Acked-by: Michal Simek <michal.simek@...inx.com>

Thanks,
Michal