Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 531be04..27a39de 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -823,6 +823,10 @@
if (err)
return false;
+ /* channel switch is not supported, disconnect */
+ if (!(sdata->local->hw.wiphy->flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
+ goto disconnect;
+
params.count = csa_ie.count;
params.chandef = csa_ie.chandef;
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 00a65ba..52b865f 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -454,6 +454,12 @@
/* 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) &&