From: Johannes Berg <johannes.berg@xxxxxxxxx>
Instead of the comment about holding RTNL, which is now wrong,
add a proper lockdep assertion for the wiphy mutex.
Fixes: a05829a7222e ("cfg80211: avoid holding the RTNL when calling the driver")
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Gregory Greenman <gregory.greenman@xxxxxxxxx>
---
net/mac80211/scan.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index dc3cdee51e66..32fa8aca7005 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -9,7 +9,7 @@
* Copyright 2007, Michael Wu <flamingice@xxxxxxxxxxxx>
* Copyright 2013-2015 Intel Mobile Communications GmbH
* Copyright 2016-2017 Intel Deutschland GmbH
- * Copyright (C) 2018-2021 Intel Corporation
+ * Copyright (C) 2018-2022 Intel Corporation
*/
#include <linux/if_arp.h>
@@ -1246,11 +1246,11 @@ int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
return ret;
}
-/*
- * Only call this function when a scan can't be queued -- under RTNL.
- */
void ieee80211_scan_cancel(struct ieee80211_local *local)
{
+ /* ensure a new scan cannot be queued */
+ lockdep_assert_wiphy(local->hw.wiphy);
+
/*
* We are canceling software scan, or deferred scan that was not
* yet really started (see __ieee80211_start_scan ).
--
2.38.1
