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Commit dda444d5 authored by Simon Wunderlich's avatar Simon Wunderlich Committed by Johannes Berg
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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: default avatarSimon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent 24d47300
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+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) &&