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From: Artem Bityutskiy <dedekind1-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: Shawn Guo <shawn.guo-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
Cc: Artem Bityutskiy
	<Artem.Bityutskiy-xNZwKgViW5gAvxtiuMwx3w@public.gmane.org>,
	patches-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org,
	Dmitry Eremin-Solenikov
	<dbaryshkov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org,
	linux-mtd-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
	David Woodhouse <dwmw2-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>,
	linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Subject: Re: [PATCH v2] mtd: dataflash: add device tree probe support
Date: Wed, 20 Jul 2011 08:17:45 +0300	[thread overview]
Message-ID: <1311139071.20738.147.camel@sauron> (raw)
In-Reply-To: <20110720045547.GA5766-+NayF8gZjK2ctlrPMvKcciBecyulp+rMXqFh9Ls21Oc@public.gmane.org>

On Wed, 2011-07-20 at 12:55 +0800, Shawn Guo wrote:
> On Wed, Jul 20, 2011 at 07:40:38AM +0300, Artem Bityutskiy wrote:
> > On Fri, 2011-07-15 at 12:49 +0800, Shawn Guo wrote:
> > > > > +static const struct of_device_id dataflash_dt_ids[] = {
> > > > > +	{ .compatible = "atmel,at45xxx", },
> > > > > +	{ .compatible = "atmel,dataflash", },
> > > > > +	{ /* sentinel */ }
> > > > > +};
> > > > > +
> > > > 
> > > > This should be protected with a #ifdef CONFIG_OF/#else/#endif, and
> > > > there should be a MODULE_DEVICE_TABLE().
> > > > 
> > > I personally hate #ifdef stuff.  But okay, I can do it since there
> > > are people being concerned by this little waste of space.
> > 
> > I guess the question is - will it compile and work if CONFIG_OF is
> > unset?
> > 
> Yes, it will compile, as 'struct of_device_id' is defined in
> include/linux/mod_devicetable.h unconditionally.

And it will work correctly even though dataflash_dt_ids is not NULL, it
will not confuse MTD layer?

-- 
Best Regards,
Artem Bityutskiy

  parent reply	other threads:[~2011-07-20  5:17 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-07-10  7:35 [PATCH] mtd: dataflash: add device tree probe support Shawn Guo
2011-07-10  8:14 ` Dmitry Eremin-Solenikov
     [not found] ` <1310283313-32087-1-git-send-email-shawn.guo-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2011-07-14 15:52   ` [PATCH v2] " Shawn Guo
2011-07-14 17:52     ` Dmitry Eremin-Solenikov
     [not found]       ` <20110714175013.GA17845-2tgbwyfBQGI/tGVuVBtu9lOnKfhBOm/VrE5yTffgRl4@public.gmane.org>
2011-07-15  2:54         ` Grant Likely
2011-07-15  4:42         ` Shawn Guo
     [not found]     ` <1310658757-17018-1-git-send-email-shawn.guo-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2011-07-14 17:10       ` Mike Frysinger
2011-07-15  2:54       ` Grant Likely
     [not found]         ` <20110715025407.GF2927-e0URQFbLeQY2iJbIjFUEsiwD8/FfD2ys@public.gmane.org>
2011-07-15  4:49           ` Shawn Guo
     [not found]             ` <20110715044919.GB1840-+NayF8gZjK2ctlrPMvKcciBecyulp+rMXqFh9Ls21Oc@public.gmane.org>
2011-07-20  4:40               ` Artem Bityutskiy
2011-07-20  4:55                 ` Shawn Guo
     [not found]                   ` <20110720045547.GA5766-+NayF8gZjK2ctlrPMvKcciBecyulp+rMXqFh9Ls21Oc@public.gmane.org>
2011-07-20  5:17                     ` Artem Bityutskiy [this message]
2011-07-20  5:28                       ` Shawn Guo
     [not found]                         ` <20110720052824.GB5766-+NayF8gZjK2ctlrPMvKcciBecyulp+rMXqFh9Ls21Oc@public.gmane.org>
2011-07-20  5:32                           ` Artem Bityutskiy
2011-07-20  5:38                             ` Mike Frysinger
2011-07-20  5:52                             ` Shawn Guo
     [not found]                               ` <20110720055228.GC5766-+NayF8gZjK2ctlrPMvKcciBecyulp+rMXqFh9Ls21Oc@public.gmane.org>
2011-07-20  5:52                                 ` Artem Bityutskiy
2011-07-15  8:38   ` [PATCH v3] " Shawn Guo
     [not found]     ` <1310719136-21565-1-git-send-email-shawn.guo-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2011-07-20  4:51       ` Artem Bityutskiy

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