Re: [PATCH] Revert "cfg80211: make WEXT compatibility unselectable"

From: Arend van Spriel
Date: Wed Dec 31 2014 - 06:09:26 EST


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.

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@xxxxxxx>
---
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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