diff options
| author |   Loic Poulain <loic.poulain@linaro.org> | 2021-10-21 10:45:27 +0200 |
|---|---|---|
| committer |   Johannes Berg <johannes.berg@intel.com> | 2021-10-21 17:27:51 +0200 |
| commit | b33fb28c867d7c86df3bdd257b0320ed148e3dc3 (patch) | |
| tree | a340129bab72454b3b8c653565c34f33120a0692 /net/mac80211/ieee80211_i.h | |
| parent | nl80211: Add LC placeholder band definition to nl80211_band (diff) | |
| download | linux-dev-b33fb28c867d7c86df3bdd257b0320ed148e3dc3.tar.xz linux-dev-b33fb28c867d7c86df3bdd257b0320ed148e3dc3.zip | |
mac80211: Prevent AP probing during suspend
Submitting AP probe/null during suspend can cause unexpected
disconnect on resume because of timeout waiting for ack status:
wlan0: Failed to send nullfunc to AP 11:22:33:44:55:66 after 500ms, disconnecting
This is especially the case when we enter suspend when a scan is
ongoing, indeed, scan is cancelled from __ieee80211_suspend, leading
to a corresponding (aborted) scan complete event, which in turn causes
the submission of an immediate monitor null frame (restart_sta_timer).
The corresponding packet or ack will not be processed before resuming,
causing a timeout & disconnect on resume.
Delay the AP probing when suspending/suspended.
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Link: https://lore.kernel.org/r/1634805927-1113-1-git-send-email-loic.poulain@linaro.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/ieee80211_i.h')
| -rw-r--r-- | net/mac80211/ieee80211_i.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index c3b8590a7e90..5666bbb8860b 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -1241,6 +1241,9 @@ struct ieee80211_local { */ bool suspended; + /* suspending is true during the whole suspend process */ + bool suspending; + /* * Resuming is true while suspended, but when we're reprogramming the * hardware -- at that time it's allowed to use ieee80211_queue_work() |