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authorJohn W. Linville <linville@tuxdriver.com>2013-12-02 19:20:03 +0100
committerJohn W. Linville <linville@tuxdriver.com>2013-12-02 19:20:03 +0100
commita59b40b30f3f51bf5c56c15a7dc4da11b424a34b (patch)
tree42528df41174b170cd30aa1da23e597fe6f43429 /net
parentbrcmfmac: fix uninitialized warning (diff)
parentmac80211: check csa wiphy flag in ibss before switching (diff)
downloadlinux-a59b40b30f3f51bf5c56c15a7dc4da11b424a34b.tar.xz
linux-a59b40b30f3f51bf5c56c15a7dc4da11b424a34b.zip
Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
Diffstat (limited to 'net')
-rw-r--r--net/mac80211/ibss.c4
-rw-r--r--net/wireless/core.c6
2 files changed, 10 insertions, 0 deletions
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 531be040b9ae..27a39de89679 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -823,6 +823,10 @@ ieee80211_ibss_process_chanswitch(struct ieee80211_sub_if_data *sdata,
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 00a65ba3aeaa..52b865fb7351 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -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) &&