ath9k: Special processing for channel changes during scan

Allow mac80211-controlled channel changes on an active wiphy and
especially during a scan. We need this as long as the scan is
controlled by mac80211. Moving this control into the driver could
allow some optimizations on scanning while using multiple virtual
interfaces, but for now, try to work as well as possible with the
current scan mechanism.

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath9k/ath9k.h b/drivers/net/wireless/ath9k/ath9k.h
index 4fc054e4354f..983f53daa1cc 100644
--- a/drivers/net/wireless/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath9k/ath9k.h
@@ -633,6 +633,7 @@ struct ath_wiphy {
                 ATH_WIPHY_ACTIVE,
                 ATH_WIPHY_PAUSING,
                 ATH_WIPHY_PAUSED,
+                ATH_WIPHY_SCAN,
         } state;
         int chan_idx;
         int chan_is_ht;
@@ -716,5 +717,6 @@ void ath9k_wiphy_chan_work(struct work_struct *work);
 bool ath9k_wiphy_started(struct ath_softc *sc);
 void ath9k_wiphy_pause_all_forced(struct ath_softc *sc,
                                   struct ath_wiphy *selected);
+bool ath9k_wiphy_scanning(struct ath_softc *sc);
 
 #endif /* ATH9K_H */