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Subject: Re: [PATCH] mtd: rawnand: mark expected switch fall-throughs
To:     Boris Brezillon <bbrezillon@kernel.org>
Cc:     Kyungmin Park <kyungmin.park@samsung.com>,
        Miquel Raynal <miquel.raynal@bootlin.com>,
        Richard Weinberger <richard@nod.at>,
        David Woodhouse <dwmw2@infradead.org>,
        Brian Norris <computersforpeace@gmail.com>,
        Marek Vasut <marek.vasut@gmail.com>,
        Wan ZongShun <mcuos.com@gmail.com>,
        linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org,
        Kees Cook <keescook@chromium.org>
References: <20190125210950.GA27855@embeddedor>
 <20190126105208.221a2051@bbrezillon>
From:   "Gustavo A. R. Silva" <gustavo@embeddedor.com>
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Message-ID: <853a267c-807b-c613-6662-93730a0b4c33@embeddedor.com>
Date:   Sat, 26 Jan 2019 07:48:50 -0600
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In-Reply-To: <20190126105208.221a2051@bbrezillon>
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Sender: linux-kernel-owner@vger.kernel.org
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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@embeddedor.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.

>>  	case 0:
>>  		break;
>>  	default:

Thanks
--
Gustavo