wcn36xx: Add helper macros to cast vif to private vif and vice versa

Makes the code a little easier to read.

Signed-off-by: Pontus Fuchs <pontus.fuchs@gmail.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
diff --git a/drivers/net/wireless/ath/wcn36xx/wcn36xx.h b/drivers/net/wireless/ath/wcn36xx/wcn36xx.h
index 7b41e83..c3ba07e 100644
--- a/drivers/net/wireless/ath/wcn36xx/wcn36xx.h
+++ b/drivers/net/wireless/ath/wcn36xx/wcn36xx.h
@@ -263,4 +263,16 @@
 	return container_of((void *)sta_priv, struct ieee80211_sta, drv_priv);
 }
 
+static inline
+struct wcn36xx_vif *wcn36xx_vif_to_priv(struct ieee80211_vif *vif)
+{
+	return (struct wcn36xx_vif *) vif->drv_priv;
+}
+
+static inline
+struct ieee80211_vif *wcn36xx_priv_to_vif(struct wcn36xx_vif *vif_priv)
+{
+	return container_of((void *) vif_priv, struct ieee80211_vif, drv_priv);
+}
+
 #endif	/* _WCN36XX_H_ */