This is a note to let you know that I've just added the patch titled
mac80211: flush delayed work when entering suspend
to the 4.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mac80211-flush-delayed-work-when-entering-suspend.patch
and it can be found in the queue-4.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From a9e9200d8661c1a0be8c39f93deb383dc940de35 Mon Sep 17 00:00:00 2001
From: Matt Chen <matt.chen@xxxxxxxxx>
Date: Sun, 22 Jan 2017 02:16:58 +0800
Subject: mac80211: flush delayed work when entering suspend
From: Matt Chen <matt.chen@xxxxxxxxx>
commit a9e9200d8661c1a0be8c39f93deb383dc940de35 upstream.
The issue was found when entering suspend and resume.
It triggers a warning in:
mac80211/key.c: ieee80211_enable_keys()
...
WARN_ON_ONCE(sdata->crypto_tx_tailroom_needed_cnt ||
sdata->crypto_tx_tailroom_pending_dec);
...
It points out sdata->crypto_tx_tailroom_pending_dec isn't cleaned up successfully
in a delayed_work during suspend. Add a flush_delayed_work to fix it.
Signed-off-by: Matt Chen <matt.chen@xxxxxxxxx>
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/mac80211/pm.c | 1 +
1 file changed, 1 insertion(+)
--- a/net/mac80211/pm.c
+++ b/net/mac80211/pm.c
@@ -168,6 +168,7 @@ int __ieee80211_suspend(struct ieee80211
break;
}
+ flush_delayed_work(&sdata->dec_tailroom_needed_wk);
drv_remove_interface(local, sdata);
}
Patches currently in stable-queue which might be from matt.chen@xxxxxxxxx are
queue-4.10/mac80211-flush-delayed-work-when-entering-suspend.patch