2021-04-09 09:40:55

by Luca Coelho

[permalink] [raw]
Subject: [PATCH 01/15] mac80211: drop the connection if firmware crashed while in CSA

From: Naftali Goldstein <[email protected]>

Don't bother keeping the link in that case. It is way
too complicated to keep the connection.

Signed-off-by: Emmanuel Grumbach <[email protected]>
Signed-off-by: Naftali Goldstein <[email protected]>
Signed-off-by: Luca Coelho <[email protected]>
---
net/mac80211/ieee80211_i.h | 2 ++
net/mac80211/main.c | 9 ++++++++-
net/mac80211/mlme.c | 4 ++--
3 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index ecda126a7026..8fcbaa1eedf3 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -1660,6 +1660,8 @@ void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata,
void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata);
void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata);
+void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata,
+ u8 *bssid, u8 reason, bool tx);

/* IBSS code */
void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 4f3f8bb58e76..f27aed37ed2b 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -5,7 +5,7 @@
* Copyright 2006-2007 Jiri Benc <[email protected]>
* Copyright 2013-2014 Intel Mobile Communications GmbH
* Copyright (C) 2017 Intel Deutschland GmbH
- * Copyright (C) 2018 - 2019 Intel Corporation
+ * Copyright (C) 2018-2021 Intel Corporation
*/

#include <net/mac80211.h>
@@ -282,6 +282,13 @@ static void ieee80211_restart_work(struct work_struct *work)
* Then we can have a race...
*/
cancel_work_sync(&sdata->u.mgd.csa_connection_drop_work);
+ if (sdata->vif.csa_active) {
+ sdata_lock(sdata);
+ ieee80211_sta_connection_lost(sdata,
+ sdata->u.mgd.associated->bssid,
+ WLAN_REASON_UNSPECIFIED, false);
+ sdata_unlock(sdata);
+ }
}
flush_delayed_work(&sdata->dec_tailroom_needed_wk);
}
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 2e33a1263518..c569a10a1bbb 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -4382,8 +4382,8 @@ static void ieee80211_sta_timer(struct timer_list *t)
ieee80211_queue_work(&sdata->local->hw, &sdata->work);
}

-static void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata,
- u8 *bssid, u8 reason, bool tx)
+void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata,
+ u8 *bssid, u8 reason, bool tx)
{
u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN];

--
2.31.0