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From: Adrian Bunk <bunk@stusta.de>
To: Kai Germaschewski <kai.germaschewski@unh.edu>
Cc: Tilman Schmidt <tilman@imap.cc>, Hansjoerg Lipp <hjlipp@web.de>,
	gigaset307x-common@lists.sourceforge.net, kkeil@suse.de,
	kai.germaschewski@gmx.de, isdn4linux@listserv.isdn4linux.de,
	linux-kernel@vger.kernel.org
Subject: Re: Kbuild problem
Date: Sun, 18 Feb 2007 11:40:28 +0100	[thread overview]
Message-ID: <20070218104028.GU13958@stusta.de> (raw)
In-Reply-To: <Pine.LNX.4.44.0702180017170.1150-100000@localhost.localdomain>

On Sun, Feb 18, 2007 at 12:22:10AM -0500, Kai Germaschewski wrote:
> On Sat, 17 Feb 2007, Tilman Schmidt wrote:
> 
> > Alright, then so be it. But that raises another question:
> > asyncdata.o is only needed for M105 and M101, not for the base
> > driver. How do I express in Kbuild that asyncdata.o is to be added
> > to gigaset-y only if CONFIG_GIGASET_M105 and CONFIG_GIGASET_M101
> > are not both 'n'?
> 
> The way this is typically done is via Kconfig. Add a config option 
> ASYNCDATA (actually something more descriptive/specific would be better), 
> add a "select ASYNCDATA" to the config options for m101 and m105, and then 
> you can use CONFIG_ASYNCDATA to decide whether to add asyncdata.o in the 
> Makefile.

One disadvantage of this approach is that in a kernel with 
CONFIG_GIGASET_BASE=y, you can't later compile and load the usb_gigaset 
or ser_gigaset modules without rebooting since they require a change to 
the kernel image.

> --Kai

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed


  reply	other threads:[~2007-02-18 10:40 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-02-15 21:56 [2.6 patch] drivers/isdn/gigaset/: build asyncdata.o into the gigaset module Adrian Bunk
2007-02-16  0:17 ` Tilman Schmidt
2007-02-16  8:33   ` Adrian Bunk
2007-02-17  0:04     ` Kbuild problem (was: [2.6 patch] drivers/isdn/gigaset/: build asyncdata.o into the gigaset module) Tilman Schmidt
2007-02-17 10:52       ` Adrian Bunk
2007-02-17 18:36         ` Kbuild problem Tilman Schmidt
2007-02-18  5:22           ` Kai Germaschewski
2007-02-18 10:40             ` Adrian Bunk [this message]
2007-02-20 13:56               ` Tilman Schmidt
2007-02-20 14:12                 ` Joerg Dorchain
2007-02-20 14:59                 ` Adrian Bunk
2007-02-20 21:55                   ` Tilman Schmidt
2007-11-01  1:39 kbuild problem Randy Dunlap
2007-11-01  5:21 ` Sam Ravnborg
2007-11-01 17:11   ` Randy Dunlap
2007-11-01 17:59     ` Sam Ravnborg

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