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iwlwifi: mvm: beacon statistics shouldn't go backwards 

We reset statistics also in case that we didn't reassoc so in
this cases keep last beacon counter.

Cc: stable@vger.kernel.org # v4.19+
Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20200417100405.1f9142751fbc.Ifbfd0f928a0a761110b8f4f2ca5483a61fb21131@changeid
This commit is contained in:
Mordechay Goodstein 2020-04-17 10:08:10 +03:00 committed by Kalle Valo
parent b98b33d556
commit 290d5e4951
1 changed files with 11 additions and 2 deletions
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13
drivers/net/wireless/intel/iwlwifi/mvm/rx.c
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@ -8,7 +8,7 @@
* Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
* Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
* Copyright(c) 2016 - 2017 Intel Deutschland GmbH
* Copyright(c) 2018 - 2019 Intel Corporation
* Copyright(c) 2018 - 2020 Intel Corporation
*
* 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
@ -31,7 +31,7 @@
* Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
* Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
* Copyright(c) 2016 - 2017 Intel Deutschland GmbH
* Copyright(c) 2018 - 2019 Intel Corporation
* Copyright(c) 2018 - 2020 Intel Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -566,6 +566,7 @@ void iwl_mvm_rx_rx_mpdu(struct iwl_mvm *mvm, struct napi_struct *napi,
struct iwl_mvm_stat_data {
struct iwl_mvm *mvm;
__le32 flags;
__le32 mac_id;
u8 beacon_filter_average_energy;
void *general;
@ -606,6 +607,13 @@ static void iwl_mvm_stat_iterator(void *_data, u8 *mac,
-general->beacon_average_energy[vif_id];
}
/* make sure that beacon statistics don't go backwards with TCM
* request to clear statistics
*/
if (le32_to_cpu(data->flags) & IWL_STATISTICS_REPLY_FLG_CLEAR)
mvmvif->beacon_stats.accu_num_beacons +=
mvmvif->beacon_stats.num_beacons;
if (mvmvif->id != id)
return;
@ -763,6 +771,7 @@ void iwl_mvm_handle_rx_statistics(struct iwl_mvm *mvm,
flags = stats->flag;
}
data.flags = flags;
iwl_mvm_rx_stats_check_trigger(mvm, pkt);