This is a note to let you know that I've just added the patch titled
wifi: cfg80211: use system_unbound_wq for wiphy work
to the 6.5-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:
wifi-cfg80211-use-system_unbound_wq-for-wiphy-work.patch
and it can be found in the queue-6.5 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 91d20ab9d9ca035527af503d00e1e30d6c375f2a Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@xxxxxxxxx>
Date: Mon, 9 Oct 2023 10:18:01 +0200
Subject: wifi: cfg80211: use system_unbound_wq for wiphy work
From: Johannes Berg <johannes.berg@xxxxxxxxx>
commit 91d20ab9d9ca035527af503d00e1e30d6c375f2a upstream.
Since wiphy work items can run pretty much arbitrary
code in the stack/driver, it can take longer to run
all of this, so we shouldn't be using system_wq via
schedule_work(). Also, we lock the wiphy (which is
the reason this exists), so use system_unbound_wq.
Reported-and-tested-by: Kalle Valo <kvalo@xxxxxxxxxx>
Fixes: a3ee4dc84c4e ("wifi: cfg80211: add a work abstraction with special semantics")
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/wireless/core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -1622,7 +1622,7 @@ void wiphy_work_queue(struct wiphy *wiph
list_add_tail(&work->entry, &rdev->wiphy_work_list);
spin_unlock_irqrestore(&rdev->wiphy_work_lock, flags);
- schedule_work(&rdev->wiphy_work);
+ queue_work(system_unbound_wq, &rdev->wiphy_work);
}
EXPORT_SYMBOL_GPL(wiphy_work_queue);
Patches currently in stable-queue which might be from johannes.berg@xxxxxxxxx are
queue-6.5/wifi-cfg80211-use-system_unbound_wq-for-wiphy-work.patch
queue-6.5/net-rfkill-gpio-prevent-value-glitch-during-probe.patch
