diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rx.c b/drivers/net/wireless/intel/iwlwifi/mvm/rx.c index 861d54641d1e..655bd1384158 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/rx.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/rx.c @@ -7,7 +7,7 @@ * * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH - * Copyright(c) 2016 Intel Deutschland GmbH + * Copyright(c) 2016 - 2017 Intel Deutschland GmbH * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -649,6 +649,9 @@ void iwl_mvm_handle_rx_statistics(struct iwl_mvm *mvm, .mvm = mvm, }; int expected_size; + int i; + u8 *energy; + __le32 *bytes, *air_time; if (iwl_mvm_is_cdb_supported(mvm)) expected_size = sizeof(*stats); @@ -674,38 +677,6 @@ void iwl_mvm_handle_rx_statistics(struct iwl_mvm *mvm, le64_to_cpu(stats->general.common.on_time_scan); data.general = &stats->general; - if (iwl_mvm_has_new_rx_api(mvm)) { - int i; - u8 *energy; - __le32 *bytes, *air_time; - - if (!iwl_mvm_is_cdb_supported(mvm)) { - struct iwl_notif_statistics_v11 *v11 = - (void *)&pkt->data; - - energy = (void *)&v11->load_stats.avg_energy; - bytes = (void *)&v11->load_stats.byte_count; - air_time = (void *)&v11->load_stats.air_time; - } else { - energy = (void *)&stats->load_stats.avg_energy; - bytes = (void *)&stats->load_stats.byte_count; - air_time = (void *)&stats->load_stats.air_time; - } - - rcu_read_lock(); - for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) { - struct iwl_mvm_sta *sta; - - if (!energy[i]) - continue; - - sta = iwl_mvm_sta_from_staid_rcu(mvm, i); - if (!sta) - continue; - sta->avg_energy = energy[i]; - } - rcu_read_unlock(); - } iwl_mvm_rx_stats_check_trigger(mvm, pkt); @@ -713,7 +684,39 @@ void iwl_mvm_handle_rx_statistics(struct iwl_mvm *mvm, IEEE80211_IFACE_ITER_NORMAL, iwl_mvm_stat_iterator, &data); + + if (!iwl_mvm_has_new_rx_api(mvm)) + return; + + if (!iwl_mvm_is_cdb_supported(mvm)) { + struct iwl_notif_statistics_v11 *v11 = + (void *)&pkt->data; + + energy = (void *)&v11->load_stats.avg_energy; + bytes = (void *)&v11->load_stats.byte_count; + air_time = (void *)&v11->load_stats.air_time; + } else { + energy = (void *)&stats->load_stats.avg_energy; + bytes = (void *)&stats->load_stats.byte_count; + air_time = (void *)&stats->load_stats.air_time; + } + + rcu_read_lock(); + for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) { + struct iwl_mvm_sta *sta; + + if (!energy[i]) + continue; + + sta = iwl_mvm_sta_from_staid_rcu(mvm, i); + if (!sta) + continue; + sta->avg_energy = energy[i]; + } + rcu_read_unlock(); + return; + invalid: IWL_ERR(mvm, "received invalid statistics size (%d)!\n", iwl_rx_packet_payload_len(pkt));