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wifi: mac80211: allow disabling SMPS debugfs controls
There are cases in which we don't want the user to override the smps mode, e.g. when SMPS should be disabled due to EMLSR. Add a driver flag to disable SMPS overriding and don't override if it is set. Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Signed-off-by: Gregory Greenman <gregory.greenman@intel.com> Link: https://lore.kernel.org/r/20230608163202.ef129e80556c.I74a298fdc86b87074c95228d3916739de1400597@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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@ -1755,12 +1755,15 @@ struct ieee80211_channel_switch {
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* @IEEE80211_VIF_GET_NOA_UPDATE: request to handle NOA attributes
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* and send P2P_PS notification to the driver if NOA changed, even
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* this is not pure P2P vif.
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* @IEEE80211_VIF_DISABLE_SMPS_OVERRIDE: disable user configuration of
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* SMPS mode via debugfs.
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*/
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enum ieee80211_vif_flags {
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IEEE80211_VIF_BEACON_FILTER = BIT(0),
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IEEE80211_VIF_SUPPORTS_CQM_RSSI = BIT(1),
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IEEE80211_VIF_SUPPORTS_UAPSD = BIT(2),
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IEEE80211_VIF_GET_NOA_UPDATE = BIT(3),
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IEEE80211_VIF_DISABLE_SMPS_OVERRIDE = BIT(4),
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};
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@ -2,7 +2,7 @@
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/*
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* Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
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* Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
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* Copyright (C) 2020-2022 Intel Corporation
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* Copyright (C) 2020-2023 Intel Corporation
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*/
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#include <linux/kernel.h>
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@ -267,6 +267,9 @@ static int ieee80211_set_smps(struct ieee80211_link_data *link,
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struct ieee80211_local *local = sdata->local;
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int err;
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if (sdata->vif.driver_flags & IEEE80211_VIF_DISABLE_SMPS_OVERRIDE)
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return -EOPNOTSUPP;
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if (!(local->hw.wiphy->features & NL80211_FEATURE_STATIC_SMPS) &&
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smps_mode == IEEE80211_SMPS_STATIC)
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return -EINVAL;
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