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mac80211: Handle SMPS mode changes only in AP mode

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According to IEEE802.11 specifications the SM power save field
in the HT capability IE and the HE extended capability IE is valid
only in (re)association frames and should be ignored otherwise.
Remove code paths that handled this also for non AP modes.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/20200131111300.891737-17-luca@coelho.fi
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Ilan Peer
2020-01-31 13:12:53 +02:00
committed by Johannes Berg
parent 85b27ef734
commit c4d800dcc7
3 changed files with 30 additions and 20 deletions
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6
net/mac80211/rx.c
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@@ -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) 2018-2019 Intel Corporation
* Copyright (C) 2018-2020 Intel Corporation
*/
#include <linux/jiffies.h>
@@ -3082,6 +3082,10 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
enum ieee80211_smps_mode smps_mode;
struct sta_opmode_info sta_opmode = {};
if (sdata->vif.type != NL80211_IFTYPE_AP &&
sdata->vif.type != NL80211_IFTYPE_AP_VLAN)
goto handled;
/* convert to HT capability */
switch (mgmt->u.action.u.ht_smps.smps_control) {
case WLAN_HT_SMPS_CONTROL_DISABLED: