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

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Date:   Mon, 23 Nov 2020 16:59:35 -0600
From:   "Gustavo A. R. Silva" <gustavoars@...nel.org>
To:     Michal Simek <michal.simek@...inx.com>
Cc:     Adrian Hunter <adrian.hunter@...el.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        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 Mon, Nov 23, 2020 at 08:00:35AM +0100, Michal Simek wrote:
> 
> 
> 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.
--
Gustavo