linux-kernel - Re: [RFC][PATCH] module: allow multiple calls to MODULE_DEVICE

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Message-ID: <20140127203001.GA18575@core.coreip.homeip.net>
Date:	Mon, 27 Jan 2014 12:30:01 -0800
From:	Dmitry Torokhov <dmitry.torokhov@...il.com>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	Tom Gundersen <teg@...m.no>, linux-kernel@...r.kernel.org,
	linux-input@...r.kernel.org, kay@...y.org,
	Rusty Russell <rusty@...tcorp.com.au>
Subject: Re: [RFC][PATCH] module: allow multiple calls to
 MODULE_DEVICE_TABLE() per module

On Mon, Jan 27, 2014 at 11:54:22AM -0800, Greg Kroah-Hartman wrote:
> On Mon, Jan 27, 2014 at 08:09:55PM +0100, Tom Gundersen wrote:
> > Commit 78551277e4df5: "Input: i8042 - add PNP modaliases" had a bug, where the
> > second call to MODULE_DEVICE_TABLE() overrode the first resulting in not all
> > the modaliases being exposed.
> > 
> > This fixes the problem by including the name of the device_id table in the
> > __mod_*_device_table alias, allowing us to export several device_id tables
> > per module.
> > 
> > Suggested-by: Kay Sievers <kay@...y.org>
> > Cc: Dmitry Torokhov <dmitry.torokhov@...il.com>
> > Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> > Cc: Rusty Russell <rusty@...tcorp.com.au>
> > ---
> >  include/linux/module.h   |  2 +-
> >  scripts/mod/file2alias.c | 14 +++++++++-----
> >  2 files changed, 10 insertions(+), 6 deletions(-)
> 
> Ah, very nice, I've wanted this for a while now, it would make a number
> of different drivers much smaller and simpler to add new device ids to
> (no multiple lists of ids, one for the module loader and one for the
> sub-driver that is in the single file.)
> 
> If this doesn't break any userspace tools, I have no objection to it at
> all:
> 
> Acked-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

Looks great to me as long as module tools keep working.

Thanks.

-- 
Dmitry
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