linux-kernel - RE: [PATCH] Revert "cfg80211: make WEXT compatibility unselectable"

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Date:	Wed, 31 Dec 2014 11:10:54 +0000
From:	"Grumbach, Emmanuel" <emmanuel.grumbach@...el.com>
To:	Arend van Spriel <arend@...adcom.com>,
	Jiri Kosina <jkosina@...e.cz>
CC:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Borislav Petkov <bp@...en8.de>,
	"linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"egrumbach@...il.com" <egrumbach@...il.com>,
	"peter@...leysoftware.com" <peter@...leysoftware.com>,
	"ilw@...ux.intel.com" <ilw@...ux.intel.com>,
	"Berg, Johannes" <johannes.berg@...el.com>,
	"Larry Finger" <Larry.Finger@...inger.net>
Subject: RE: [PATCH] Revert "cfg80211: make WEXT compatibility unselectable"

> On 12/30/14 23:52, Jiri Kosina wrote:
> > This reverts commit 24a0aa212ee2dbe44360288684478d76a8e20a0a.
> >
> > It's causing severe userspace breakage. Namely, all the utilities from
> > wireless-utils which are relying on CONFIG_WEXT (which means tools
> > like 'iwconfig', 'iwlist', etc) are not working anymore. There is a
> > 'iw' utility in newer wireless-tools, which is supposed to be a
> > replacement for all the "deprecated" binaries, but it's far away from
> > being massively adopted.
> >
> > Please see [1] for example of the userspace breakage this is causing.
> >
> > In addition to that, Larry Finger reports [2] that this patch is also
> > causing ipw2200 driver being impossible to build.
> >
> > To me this clearly shows that CONFIG_WEXT is far, far away from being
> > "deprecated enough" to be removed.
> 
> Hi Jiri,
> 
> You mentioned in the discussion and I quote: "*If* wireless maintainers think
> otherwise, I'll send a revert request to Linus for consideration.". However,
> you did not wait for any response from the wireless maintainers nor from the
> author of the patch you are reverting.
> Seems like an overreaction to me though personally I do not disgree with the
> revert itself.

Not to mention the patch has already been applied on Linus's tree...

> 
> Regards,
> Arend
> 
> > [1] http://thread.gmane.org/gmane.linux.kernel/1857010
> > [2] http://thread.gmane.org/gmane.linux.network/343688
> >
> > Signed-off-by: Jiri Kosina<jkosina@...e.cz>
> > ---
> >   net/wireless/Kconfig | 2 +-
> >   1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/net/wireless/Kconfig b/net/wireless/Kconfig index
> > 22ba971..29c8675 100644
> > --- a/net/wireless/Kconfig
> > +++ b/net/wireless/Kconfig
> > @@ -175,7 +175,7 @@ config CFG80211_INTERNAL_REGDB
> >   	  Most distributions have a CRDA package.  So if unsure, say N.
> >
> >   config CFG80211_WEXT
> > -	bool
> > +	bool "cfg80211 wireless extensions compatibility"
> >   	depends on CFG80211
> >   	select WEXT_CORE
> >   	help

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