linux-kernel - Re: [PATCH] mtd: rawnand: mark expected switch fall-throughs

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Date:   Sat, 26 Jan 2019 17:54:29 +0100
From:   Boris Brezillon <bbrezillon@...nel.org>
To:     "Gustavo A. R. Silva" <gustavo@...eddedor.com>
Cc:     Kees Cook <keescook@...omium.org>,
        Wan ZongShun <mcuos.com@...il.com>,
        Richard Weinberger <richard@....at>,
        linux-kernel@...r.kernel.org, Marek Vasut <marek.vasut@...il.com>,
        Kyungmin Park <kyungmin.park@...sung.com>,
        linux-mtd@...ts.infradead.org,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Brian Norris <computersforpeace@...il.com>,
        David Woodhouse <dwmw2@...radead.org>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] mtd: rawnand: mark expected switch fall-throughs

On Sat, 26 Jan 2019 07:48:50 -0600
"Gustavo A. R. Silva" <gustavo@...eddedor.com> wrote:

> Hey Boris,
> 
> On 1/26/19 3:52 AM, Boris Brezillon wrote:
> > On Fri, 25 Jan 2019 15:09:50 -0600
> > "Gustavo A. R. Silva" <gustavo@...eddedor.com> wrote:
> >   
> >> diff --git a/drivers/mtd/nand/raw/nandsim.c b/drivers/mtd/nand/raw/nandsim.c
> >> index 933d1a629c51..d33e15dc4cdc 100644
> >> --- a/drivers/mtd/nand/raw/nandsim.c
> >> +++ b/drivers/mtd/nand/raw/nandsim.c
> >> @@ -2251,9 +2251,10 @@ static int __init ns_init_module(void)
> >>  
> >>  	switch (bbt) {
> >>  	case 2:
> >> -		 chip->bbt_options |= NAND_BBT_NO_OOB;
> >> +		chip->bbt_options |= NAND_BBT_NO_OOB;
> >> +		/* fall through */
> >>  	case 1:
> >> -		 chip->bbt_options |= NAND_BBT_USE_FLASH;
> >> +		chip->bbt_options |= NAND_BBT_USE_FLASH;  
> > 
> > You miss a '/* fall through */' here.
> >   
> 
> Not really.  Notice that in this case the code falls through
> to a break statement.

Still find it weird to mandate fall through comments in all cases but
this one...

> 
> >>  	case 0:
> >>  		break;
> >>  	default:  
> 
> Thanks
> --
> Gustavo
> 
> ______________________________________________________
> Linux MTD discussion mailing list
> http://lists.infradead.org/mailman/listinfo/linux-mtd/

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