ath9k: Add a simple virtual wiphy scheduler

This is a very simple scheduler that goes through the wiphys and
schedules one at a time every N milliseconds (current default value:
500 ms). This is enough for initial testing, but there are number of
areas where a more complex scheduler can improve operations greatly.

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

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c
index 626392241d4..f473fee72a2 100644
--- a/drivers/net/wireless/ath9k/main.c
+++ b/drivers/net/wireless/ath9k/main.c
@@ -1325,6 +1325,7 @@ void ath_detach(struct ath_softc *sc)
 #endif
         ath_deinit_leds(sc);
         cancel_work_sync(&sc->chan_work);
+        cancel_delayed_work_sync(&sc->wiphy_work);
 
         for (i = 0; i < sc->num_sec_wiphy; i++) {
                 struct ath_wiphy *aphy = sc->sec_wiphy[i];
@@ -1672,6 +1673,8 @@ int ath_attach(u16 devid, struct ath_softc *sc)
         ath9k_reg_apply_world_flags(hw->wiphy, REGDOM_SET_BY_INIT);
 
         INIT_WORK(&sc->chan_work, ath9k_wiphy_chan_work);
+        INIT_DELAYED_WORK(&sc->wiphy_work, ath9k_wiphy_work);
+        sc->wiphy_scheduler_int = msecs_to_jiffies(500);
 
         error = ieee80211_register_hw(hw);