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iwlwifi: mvm: beacon statistics shouldn't go backwards

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commit 290d5e4951832e39d10f4184610dbf09038f8483 upstream.

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
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mordechay Goodstein 2020-04-17 10:08:10 +03:00 committed by Greg Kroah-Hartman
parent 95df104546
commit eed3199232
1 changed files with 9 additions and 0 deletions
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9
drivers/net/wireless/intel/iwlwifi/mvm/rx.c
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@ -587,6 +587,7 @@ 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;
@ -630,6 +631,13 @@ static void iwl_mvm_stat_iterator(void *_data, u8 *mac,
}
}
/* 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;
@ -790,6 +798,7 @@ void iwl_mvm_handle_rx_statistics(struct iwl_mvm *mvm,
flags = stats->flag;
}
data.flags = flags;
iwl_mvm_rx_stats_check_trigger(mvm, pkt);