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Message-ID: <20190128101344.1cc03eed@xps13>
Date: Mon, 28 Jan 2019 10:13:44 +0100
From: Miquel Raynal <miquel.raynal@...tlin.com>
To: Boris Brezillon <bbrezillon@...nel.org>
Cc: "Gustavo A. R. Silva" <gustavo@...eddedor.com>,
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,
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
Hi Boris,
Boris Brezillon <bbrezillon@...nel.org> wrote on Sat, 26 Jan 2019
17:54:29 +0100:
> 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...
Yes please, even if there is no GCC warning I think you can add one
here.
Thanks,
Miquèl
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