linux-kernel - Re: [PATCH] mtd: lpddr_cmds: Mark expected switch fall-through

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Date:   Wed, 10 Apr 2019 16:15:45 -0500
From:   "Gustavo A. R. Silva" <gustavo@...eddedor.com>
To:     David Woodhouse <dwmw2@...radead.org>,
        Brian Norris <computersforpeace@...il.com>,
        Boris Brezillon <bbrezillon@...nel.org>,
        Marek Vasut <marek.vasut@...il.com>,
        Richard Weinberger <richard@....at>
Cc:     linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Kees Cook <keescook@...omium.org>
Subject: Re: [PATCH] mtd: lpddr_cmds: Mark expected switch fall-through

Hi all,

If no one cares I'll add this to my tree for 5.2.

Thanks
--
Gustavo

On 3/20/19 3:17 PM, Gustavo A. R. Silva wrote:
> Hi all,
> 
> Friendly ping:
> 
> Who can take this?
> 
> Thanks
> --
> Gustavo
> 
> On 2/8/19 12:12 PM, Gustavo A. R. Silva wrote:
>> In preparation to enabling -Wimplicit-fallthrough, mark switch
>> cases where we are expecting to fall through.
>>
>> This patch fixes the following warnings:
>>
>> drivers/mtd/lpddr/lpddr_cmds.c: In function ‘chip_ready’:
>> drivers/mtd/lpddr/lpddr_cmds.c:319:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
>>    if (mode == FL_READY && chip->oldstate == FL_READY)
>>       ^
>> drivers/mtd/lpddr/lpddr_cmds.c:322:2: note: here
>>   default:
>>   ^~~~~~~
>>
>> Warning level 3 was used: -Wimplicit-fallthrough=3
>>
>> This patch is part of the ongoing efforts to enabling
>> -Wimplicit-fallthrough.
>>
>> Signed-off-by: Gustavo A. R. Silva <gustavo@...eddedor.com>
>> ---
>>  drivers/mtd/lpddr/lpddr_cmds.c | 1 +
>>  1 file changed, 1 insertion(+)
>>
>> diff --git a/drivers/mtd/lpddr/lpddr_cmds.c b/drivers/mtd/lpddr/lpddr_cmds.c
>> index b13557fe52bd..76a4c73e100e 100644
>> --- a/drivers/mtd/lpddr/lpddr_cmds.c
>> +++ b/drivers/mtd/lpddr/lpddr_cmds.c
>> @@ -318,6 +318,7 @@ static int chip_ready(struct map_info *map, struct flchip *chip, int mode)
>>  		/* Only if there's no operation suspended... */
>>  		if (mode == FL_READY && chip->oldstate == FL_READY)
>>  			return 0;
>> +		/* fall through */
>>  
>>  	default:
>>  sleep:
>>