mac80211: add extended channel switching capability if the driver supports CSA

The Extended Channel Switching capability bit in the extended
capabilities element must be set if the driver supports CSA on
non-beaconing interfaces.

Since this capability needs to be set during driver registration, the
extended_capabiliities global variable needs to be moved to the local
structure so that it can be modified.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index b1be39c76931..5fab17b382b5 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -1998,6 +1998,11 @@ enum ieee80211_tdls_actioncode {
         WLAN_TDLS_DISCOVERY_REQUEST = 10,
 };
 
+/* Extended Channel Switching capability to be set in the 1st byte of
+ * the @WLAN_EID_EXT_CAPABILITY information element
+ */
+#define WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING    BIT(2)
+
 /* Interworking capabilities are set in 7th bit of 4th byte of the
  * @WLAN_EID_EXT_CAPABILITY information element
  */