linux-kernel - [RFC PATCH 4/4] wifi: cfg80211: move scan done work to cfg80211 workqueue

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Date:   Wed, 10 May 2023 18:04:28 +0200
From:   Johannes Berg <johannes@...solutions.net>
To:     linux-kernel@...r.kernel.org
Cc:     linux-wireless@...r.kernel.org, Tejun Heo <tj@...nel.org>,
        Lai Jiangshan <jiangshanlai@...il.com>,
        Johannes Berg <johannes.berg@...el.com>
Subject: [RFC PATCH 4/4] wifi: cfg80211: move scan done work to cfg80211 workqueue

From: Johannes Berg <johannes.berg@...el.com>

Now that we have the cfg80211 workqueue, move the scan_done work
to it as an example.

Signed-off-by: Johannes Berg <johannes.berg@...el.com>
---
 net/wireless/core.c | 1 -
 net/wireless/scan.c | 5 ++---
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/net/wireless/core.c b/net/wireless/core.c
index 11e600c71fb6..2908cc4f102e 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -1082,7 +1082,6 @@ void wiphy_unregister(struct wiphy *wiphy)
 	 */
 	flush_workqueue(rdev->wq);
 
-	flush_work(&rdev->scan_done_wk);
 	cancel_work_sync(&rdev->conn_work);
 	flush_work(&rdev->event_work);
 	cancel_delayed_work_sync(&rdev->dfs_update_channels_wk);
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index 790bc31cf82e..6bd919352f55 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -1007,9 +1007,7 @@ void __cfg80211_scan_done(struct work_struct *wk)
 	rdev = container_of(wk, struct cfg80211_registered_device,
 			    scan_done_wk);
 
-	wiphy_lock(&rdev->wiphy);
 	___cfg80211_scan_done(rdev, true);
-	wiphy_unlock(&rdev->wiphy);
 }
 
 void cfg80211_scan_done(struct cfg80211_scan_request *request,
@@ -1035,7 +1033,8 @@ void cfg80211_scan_done(struct cfg80211_scan_request *request,
 	}
 
 	request->notified = true;
-	queue_work(cfg80211_wq, &wiphy_to_rdev(request->wiphy)->scan_done_wk);
+	wiphy_queue_work(request->wiphy,
+			 &wiphy_to_rdev(request->wiphy)->scan_done_wk);
 }
 EXPORT_SYMBOL(cfg80211_scan_done);
 
-- 
2.40.1