cfg80211: Add support for QoS mapping

This allows QoS mapping from external networks to be implemented as
defined in IEEE Std 802.11-2012, 10.24.9. APs can use this to advertise
DSCP ranges and exceptions for mapping frames to a specific UP over
Wi-Fi.

The payload of the QoS Map Set element (IEEE Std 802.11-2012, 8.4.2.97)
is sent to the driver through the new NL80211_ATTR_QOS_MAP attribute to
configure the local behavior either on the AP (based on local
configuration) or on a station (based on information received from the
AP).

Signed-off-by: Kyeyoon Park <kyeyoonp@qca.qualcomm.com>
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/wireless/rdev-ops.h b/net/wireless/rdev-ops.h
index a6c03ab..c8e2259 100644
--- a/net/wireless/rdev-ops.h
+++ b/net/wireless/rdev-ops.h
@@ -932,4 +932,19 @@
 	return ret;
 }
 
+static inline int rdev_set_qos_map(struct cfg80211_registered_device *rdev,
+				   struct net_device *dev,
+				   struct cfg80211_qos_map *qos_map)
+{
+	int ret = -EOPNOTSUPP;
+
+	if (rdev->ops->set_qos_map) {
+		trace_rdev_set_qos_map(&rdev->wiphy, dev, qos_map);
+		ret = rdev->ops->set_qos_map(&rdev->wiphy, dev, qos_map);
+		trace_rdev_return_int(&rdev->wiphy, ret);
+	}
+
+	return ret;
+}
+
 #endif /* __CFG80211_RDEV_OPS */