linux-kernel - Re: [PATCH v4 3/9] mfd: tmio.h: support partition parser types

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Date:   Wed, 12 Jul 2017 09:58:04 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     Andrea Adami <andrea.adami@...il.com>
Cc:     linux-mtd@...ts.infradead.org,
        David Woodhouse <dwmw2@...radead.org>,
        Brian Norris <computersforpeace@...il.com>,
        Boris Brezillon <boris.brezillon@...e-electrons.com>,
        Marek Vasut <marek.vasut@...il.com>,
        Richard Weinberger <richard@....at>,
        Cyrille Pitchen <cyrille.pitchen@...ev4u.fr>,
        Wolfram Sang <wsa+renesas@...g-engineering.com>,
        Daniel Mack <daniel@...que.org>,
        Haojian Zhuang <haojian.zhuang@...il.com>,
        Dmitry Eremin-Solenikov <dbaryshkov@...il.com>,
        Robert Jarzmik <robert.jarzmik@...e.fr>,
        Linus Walleij <linus.walleij@...aro.org>,
        Russell King <linux@...linux.org.uk>,
        linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v4 3/9] mfd: tmio.h: support partition parser types

On Wed, 12 Jul 2017, Andrea Adami wrote:

> On Mon, Jul 3, 2017 at 2:03 PM, Andrea Adami <andrea.adami@...il.com> wrote:
> > On Mon, Jul 3, 2017 at 1:26 PM, Lee Jones <lee.jones@...aro.org> wrote:
> >> Please use the $SUBJECT line expected by the subsystem.
> >>
> >> `git log --oneline -- $SUBSYSTEM` can help with this.
> >>
> >> You also need a commit log.
> >>
> >
> > Lee,
> >
> > thanks for spotting it.
> > I'll fix the subject and add a little text in these patches touching headers.
> >
> > I am awaiting for a new review of the big piece of the patch, the
> > ftl/parser, then I'll send a fixed v5.
> >
> >
> 
> Lee,
> 
> I have looked at the history of mfd/tmio.h but couldn't find
> unambiguous examples.
> Do you prefer
> 
> Subject: mfd: tmio: tmio_nand: add partition parsers platform data
> or
> Subject: mfd: tmio: tmio-nand: add partition parsers platform data
> or
> Subject: mfd: tmio: tmio/nand: add partition parsers platform data

Better to look at the subsystem as a whole.

  `git log --oneline -- drivers/mfd`

You will see something like:

  mfd: device-driver: Short subject starting with an uppercase char
  
> >>> Signed-off-by: Andrea Adami <andrea.adami@...il.com>
> >>> ---
> >>>  include/linux/mfd/tmio.h | 1 +
> >>>  1 file changed, 1 insertion(+)
> >>>
> >>> diff --git a/include/linux/mfd/tmio.h b/include/linux/mfd/tmio.h
> >>> index a1520d8..23bb069 100644
> >>> --- a/include/linux/mfd/tmio.h
> >>> +++ b/include/linux/mfd/tmio.h
> >>> @@ -139,6 +139,7 @@ struct tmio_nand_data {
> >>>       struct nand_bbt_descr   *badblock_pattern;
> >>>       struct mtd_partition    *partition;
> >>>       unsigned int            num_partitions;
> >>> +     const char *const       *types; /* names of parsers to use if any */
> >>
> >> I'm okay with this if it's suits the MTD folk.
> >>
> >
> > Other than kerneldoc comments there are maybe other little
> > discordances to settle: see above is *partition, num_partitions.
> > In the other header it is *partitions, nr_partitions ...I'll see if
> > oneday I can janiitor this.
> >
> > Regards
> > Andrea
> >
> >>>  };
> >>>
> >>>  #define FBIO_TMIO_ACC_WRITE  0x7C639300
> >>

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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