Commit 0e966d9a authored by Johannes Berg's avatar Johannes Berg
Browse files

wifi: mac80211: don't update rx_stats.last_rate for NDP 



If we get an NDP (null data packet), there's reason to
believe the peer is just sending it to probe, and that
would happen at a low rate. Don't track this packet for
purposes of last RX rate reporting.

Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
Signed-off-by: default avatarGregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230608163202.8af46c4ac094.I13d9d5019addeaa4aff3c8a05f56c9f5a86b1ebd@changeid


Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent 556f16b8

net/mac80211/rx.c

+3 −3
Original line number Diff line number Diff line
@@ -6,7 +6,7 @@ 
 * Copyright 2007-2010	Johannes Berg <johannes@sipsolutions.net>

 * Copyright 2013-2014  Intel Mobile Communications GmbH

 * Copyright(c) 2015 - 2017 Intel Deutschland GmbH

 * Copyright (C) 2018-2022 Intel Corporation

 * Copyright (C) 2018-2023 Intel Corporation

 */



#include <linux/jiffies.h>
@@ -1732,7 +1732,7 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx) 
		if (ether_addr_equal(bssid, rx->sdata->u.ibss.bssid) &&

		    test_sta_flag(sta, WLAN_STA_AUTHORIZED)) {

			link_sta->rx_stats.last_rx = jiffies;

			if (ieee80211_is_data(hdr->frame_control) &&

			if (ieee80211_is_data_present(hdr->frame_control) &&

			    !is_multicast_ether_addr(hdr->addr1))

				link_sta->rx_stats.last_rate =

					sta_stats_encode_rate(status);
@@ -1746,7 +1746,7 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx) 
		 * match the current local configuration when processed.

		 */

		link_sta->rx_stats.last_rx = jiffies;

		if (ieee80211_is_data(hdr->frame_control))

		if (ieee80211_is_data_present(hdr->frame_control))

			link_sta->rx_stats.last_rate = sta_stats_encode_rate(status);

	}