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Re: [PATCH] cfg80211: fix Kconfig for users of cfg80211

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On Wed, Jun 03, 2009 at 08:15:31PM +0100, Dave wrote:
> Johannes Berg wrote:
> >  * iwm doesn't depend on cfg80211 or wireless extensions
> >  * rndis wlan selects cfg80211 - needs to depend
> >  * mac80211 selects cfg80211 - needs to depend
> 
> Hmm. Consider:
> 
> 1. User using a rndis_wlan device on old kernel with cfg80211 unselected.
> 2. Upgrades kernel with make old_config
> 
> Result: the rndis_wlan driver is no longer configured to build.
> 
> I don't think it's a big issue, as you can reconfigure and rebuild as
> soon as you realise. But you may have to 'realise' without google access.
> 
> The only reason I'm thinking of this is because orinoco may be in the
> same boat shortly. Ditto other wireless drivers as they get converted.
> So I had a play with Kconfig. How about something like the patch below
> instead?
> 
> cfg80211 should just get autoselected in the most appropriate mode, and
> drivers get the same restrictions as cfg80211. The option setting
> appears to work fine, but I haven't done any build testing.
> 
> It might be possible to chain things like this, so mac80211 could be
> done in the same way. But I guess we wouldn't want too much of this
> going on...

This patch reminds me of why I hate Kconfig...

If you decide to post it for merging, please include a thorough
description of how it works for those of us with sore brains.

John
-- 
John W. Linville		Someday the world will need a hero, and you
linville@xxxxxxxxxxxxx			might be all we have.  Be ready.
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