linux-kernel - Re: [PATCH] wireless: fix regression caused by regulatory config option

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Message-Id: <1225059157.7157.3.camel@californication>
Date:	Sun, 26 Oct 2008 23:12:37 +0100
From:	Marcel Holtmann <holtmann@...ux.intel.com>
To:	Arjan van de Ven <arjan@...radead.org>
Cc:	"John W. Linville" <linville@...driver.com>,
	torvalds@...ux-foundation.org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, rjw@...k.pl, rodriguez@...eros.com,
	johannes@...solutions.net
Subject: Re: [PATCH] wireless: fix regression caused by regulatory config
	option

Hi Arjan,

> > > Change the default to "y" and also adjust the config text a little
> > > to reflect this.
> > 
> > Is it common practice to have compatibility options default to
> > "y"?  I'm not saying it shouldn't be, just wondering if it has been
> > traditionally?
> 
> yes
> 
> default should be "keep working as before"
> 
> it's not always nice, especially if you're trying to get rid of some
> nasty stuff, but think of it this way: you should be able to use a
> new kernel on an existing distro, at least for a reasonable type of
> distro (eg something shipped in, say, the last 2 years). In this case:
> even Fedora 10 is not likely to work!

I think with the new patches from Johannes to make the regulatory
interaction easier for hardware that has hardware/EEPROM based
regulatory enforcement like our wireless cards, it should be all good.

That seems to be 2.6.20 stuff and then it seems to be safe to remove the
WIRELESS_OLD_REGULATORY option and it would still work with old
userspace (or missing crda/iw) in cases the hardware does regulatory
enforcement.

Regards

Marcel


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