Commit dda444d5 authored Nov 26, 2013 by Simon Wunderlich Committed by Johannes Berg Dec 02, 2013

cfg80211: disable CSA for all drivers



The channel switch announcement code has some major locking problems
which can cause a deadlock in worst case. A series of fixes has been
proposed, but these are non-trivial and need to be tested first.
Therefore disable CSA completely for 3.13.

Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

parent 24d47300

net/wireless/core.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -454,6 +454,12 @@ int wiphy_register(struct wiphy *wiphy)
		/* support for 5/10 MHz is broken due to nl80211 API mess - disable */
		wiphy->flags &= ~WIPHY_FLAG_SUPPORTS_5_10_MHZ;

		/*
		* There are major locking problems in nl80211/mac80211 for CSA,
		* disable for all drivers until this has been reworked.
		*/
		wiphy->flags &= ~WIPHY_FLAG_HAS_CHANNEL_SWITCH;

		#ifdef CONFIG_PM
		if (WARN_ON(wiphy->wowlan &&
		(wiphy->wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&