iwlwifi: mvm: advertise RSS queue usage

In order for mac80211 to use per-CPU statistics for RSS RX, the
driver needs to advertise that it uses RSS. Do this when using
more than a single queue.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c

@@ -442,6 +442,9 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
 	if (iwl_mvm_has_new_rx_api(mvm))
 		ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER);
 
+	if (mvm->trans->num_rx_queues > 1)
+		ieee80211_hw_set(hw, USES_RSS);
+
 	if (mvm->trans->max_skb_frags)
 		hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG;