[PATCH AUTOSEL 4.19 237/237] cfg80211: call disconnect_wk when AP stops
From: Sasha Levin <sashal@kernel.org>
Date: 2019-11-16 16:14:14
Also in:
linux-wireless, lkml, stable
Subsystem:
802.11 (including cfg80211/nl80211), the rest · Maintainers:
Johannes Berg, Linus Torvalds
From: Johannes Berg <redacted>
[ Upstream commit e005bd7ddea06784c1eb91ac5bb6b171a94f3b05 ]
Since we now prevent regulatory restore during STA disconnect
if concurrent AP interfaces are active, we need to reschedule
this check when the AP state changes. This fixes never doing
a restore when an AP is the last interface to stop. Or to put
it another way: we need to re-check after anything we check
here changes.
Cc: stable@vger.kernel.org
Fixes: 113f3aaa81bd ("cfg80211: Prevent regulatory restore during STA disconnect in concurrent interfaces")
Signed-off-by: Johannes Berg <redacted>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/wireless/ap.c | 2 ++
net/wireless/core.h | 2 ++
net/wireless/sme.c | 2 +-
3 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/net/wireless/ap.c b/net/wireless/ap.c
index 882d97bdc6bfd..550ac9d827fe7 100644
--- a/net/wireless/ap.c
+++ b/net/wireless/ap.c@@ -41,6 +41,8 @@ int __cfg80211_stop_ap(struct cfg80211_registered_device *rdev, cfg80211_sched_dfs_chan_update(rdev); } + schedule_work(&cfg80211_disconnect_work); + return err; }
diff --git a/net/wireless/core.h b/net/wireless/core.h
index 7f52ef5693203..f5d58652108dd 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h@@ -430,6 +430,8 @@ void cfg80211_process_wdev_events(struct wireless_dev *wdev); bool cfg80211_does_bw_fit_range(const struct ieee80211_freq_range *freq_range, u32 center_freq_khz, u32 bw_khz); +extern struct work_struct cfg80211_disconnect_work; + /** * cfg80211_chandef_dfs_usable - checks if chandef is DFS usable * @wiphy: the wiphy to validate against
diff --git a/net/wireless/sme.c b/net/wireless/sme.c
index c7047c7b4e80f..07c2196e9d573 100644
--- a/net/wireless/sme.c
+++ b/net/wireless/sme.c@@ -667,7 +667,7 @@ static void disconnect_work(struct work_struct *work) rtnl_unlock(); } -static DECLARE_WORK(cfg80211_disconnect_work, disconnect_work); +DECLARE_WORK(cfg80211_disconnect_work, disconnect_work); /*
--
2.20.1