diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2023-06-06 15:49:28 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2023-06-07 20:53:22 +0300 |
| commit | 1444f58931ef5227532cf5436bb55c1dd511d9a2 (patch) | |
| tree | e8ff33eb275ac2cda980007d91383489e3b4f6ed | |
| parent | a3df43b16fc49213ab4b925711d4725e1e2f2305 (diff) | |
| download | linux-1444f58931ef5227532cf5436bb55c1dd511d9a2.tar.xz | |
wifi: mac80211: use wiphy work for SMPS
SMPS requests are per link, and currently there's a potential
deadlock with canceling. Use the new wiphy work to handle SMPS
instead, so that the cancel cannot deadlock.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| -rw-r--r-- | net/mac80211/ht.c | 5 | ||||
| -rw-r--r-- | net/mac80211/ieee80211_i.h | 2 | ||||
| -rw-r--r-- | net/mac80211/mlme.c | 10 | ||||
| -rw-r--r-- | net/mac80211/tdls.c | 4 |
4 files changed, 12 insertions, 9 deletions
diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c index 5315ab750280..33729870ad8a 100644 --- a/net/mac80211/ht.c +++ b/net/mac80211/ht.c @@ -9,7 +9,7 @@ * Copyright 2007, Michael Wu <flamingice@sourmilk.net> * Copyright 2007-2010, Intel Corporation * Copyright 2017 Intel Deutschland GmbH - * Copyright(c) 2020-2022 Intel Corporation + * Copyright(c) 2020-2023 Intel Corporation */ #include <linux/ieee80211.h> @@ -602,7 +602,8 @@ void ieee80211_request_smps(struct ieee80211_vif *vif, unsigned int link_id, goto out; link->u.mgd.driver_smps_mode = smps_mode; - ieee80211_queue_work(&sdata->local->hw, &link->u.mgd.request_smps_work); + wiphy_work_queue(sdata->local->hw.wiphy, + &link->u.mgd.request_smps_work); out: rcu_read_unlock(); } diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 1cefe69706ef..0ecb725f5307 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -921,7 +921,7 @@ struct ieee80211_link_data_managed { struct timer_list chswitch_timer; struct work_struct chswitch_work; - struct work_struct request_smps_work; + struct wiphy_work request_smps_work; bool beacon_crc_valid; u32 beacon_crc; struct ewma_beacon_signal ave_beacon_signal; diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 03251a725d65..c4a1bf6b6fb4 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -6538,7 +6538,8 @@ void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata) sdata_unlock(sdata); } -static void ieee80211_request_smps_mgd_work(struct work_struct *work) +static void ieee80211_request_smps_mgd_work(struct wiphy *wiphy, + struct wiphy_work *work) { struct ieee80211_link_data *link = container_of(work, struct ieee80211_link_data, @@ -6588,8 +6589,8 @@ void ieee80211_mgd_setup_link(struct ieee80211_link_data *link) link->u.mgd.conn_flags = 0; link->conf->bssid = link->u.mgd.bssid; - INIT_WORK(&link->u.mgd.request_smps_work, - ieee80211_request_smps_mgd_work); + wiphy_work_init(&link->u.mgd.request_smps_work, + ieee80211_request_smps_mgd_work); if (local->hw.wiphy->features & NL80211_FEATURE_DYNAMIC_SMPS) link->u.mgd.req_smps = IEEE80211_SMPS_AUTOMATIC; else @@ -7552,7 +7553,8 @@ int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata, void ieee80211_mgd_stop_link(struct ieee80211_link_data *link) { - cancel_work_sync(&link->u.mgd.request_smps_work); + wiphy_work_cancel(link->sdata->local->hw.wiphy, + &link->u.mgd.request_smps_work); cancel_work_sync(&link->u.mgd.chswitch_work); } diff --git a/net/mac80211/tdls.c b/net/mac80211/tdls.c index b255f3b5bf01..52c47674a554 100644 --- a/net/mac80211/tdls.c +++ b/net/mac80211/tdls.c @@ -1431,8 +1431,8 @@ int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev, } if (ret == 0) - ieee80211_queue_work(&sdata->local->hw, - &sdata->deflink.u.mgd.request_smps_work); + wiphy_work_queue(sdata->local->hw.wiphy, + &sdata->deflink.u.mgd.request_smps_work); mutex_unlock(&local->mtx); sdata_unlock(sdata); |