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>

1 files changed, 19 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath9k/virtual.c b/drivers/net/wireless/ath9k/virtual.c
index 76ffdfa860ed..b66aa24d3186 100644
--- a/drivers/net/wireless/ath9k/virtual.c
+++ b/drivers/net/wireless/ath9k/virtual.c
@@ -477,3 +477,22 @@ int ath9k_wiphy_select(struct ath_wiphy *aphy)
 
         return 0;
 }
+
+bool ath9k_wiphy_started(struct ath_softc *sc)
+{
+        int i;
+        spin_lock_bh(&sc->wiphy_lock);
+        if (sc->pri_wiphy->state != ATH_WIPHY_INACTIVE) {
+                spin_unlock_bh(&sc->wiphy_lock);
+                return true;
+        }
+        for (i = 0; i < sc->num_sec_wiphy; i++) {
+                if (sc->sec_wiphy[i] &&
+                    sc->sec_wiphy[i]->state != ATH_WIPHY_INACTIVE) {
+                        spin_unlock_bh(&sc->wiphy_lock);
+                        return true;
+                }
+        }
+        spin_unlock_bh(&sc->wiphy_lock);
+        return false;
+}