ath9k: Make start/stop operations aware of virtual wiphys
Instead of always going through initialization/deinitialization steps,
do this only for the first/last wiphy to not break the other wiphys.
Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c
index 4495901..183fb8e 100644
--- a/drivers/net/wireless/ath9k/main.c
+++ b/drivers/net/wireless/ath9k/main.c
@@ -1965,6 +1965,27 @@
mutex_lock(&sc->mutex);
+ if (ath9k_wiphy_started(sc)) {
+ if (sc->chan_idx == curchan->hw_value) {
+ /*
+ * Already on the operational channel, the new wiphy
+ * can be marked active.
+ */
+ aphy->state = ATH_WIPHY_ACTIVE;
+ ieee80211_wake_queues(hw);
+ } else {
+ /*
+ * Another wiphy is on another channel, start the new
+ * wiphy in paused state.
+ */
+ aphy->state = ATH_WIPHY_PAUSED;
+ ieee80211_stop_queues(hw);
+ }
+ mutex_unlock(&sc->mutex);
+ return 0;
+ }
+ aphy->state = ATH_WIPHY_ACTIVE;
+
/* setup initial channel */
pos = curchan->hw_value;
@@ -2104,6 +2125,8 @@
struct ath_wiphy *aphy = hw->priv;
struct ath_softc *sc = aphy->sc;
+ aphy->state = ATH_WIPHY_INACTIVE;
+
if (sc->sc_flags & SC_OP_INVALID) {
DPRINTF(sc, ATH_DBG_ANY, "Device not present\n");
return;
@@ -2113,6 +2136,11 @@
ieee80211_stop_queues(hw);
+ if (ath9k_wiphy_started(sc)) {
+ mutex_unlock(&sc->mutex);
+ return; /* another wiphy still in use */
+ }
+
/* make sure h/w will not generate any interrupt
* before setting the invalid flag. */
ath9k_hw_set_interrupts(sc->sc_ah, 0);