From: Ilan Peer ilan.peer@intel.com
[ Upstream commit 05dcb8bb258575a8dd3499d0d78bd2db633c2b23 ]
When cfg80211_update_assoc_bss_entry() is called, there is a verification that the BSS channel actually changed. As some APs use CSA also for bandwidth changes, this would result with a kernel warning.
Fix this by removing the WARN_ON().
Signed-off-by: Ilan Peer ilan.peer@intel.com Signed-off-by: Luca Coelho luciano.coelho@intel.com Link: https://lore.kernel.org/r/iwlwifi.20200326150855.96316ada0e8d.I6710376b1b425... Signed-off-by: Johannes Berg johannes.berg@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- net/wireless/scan.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/net/wireless/scan.c b/net/wireless/scan.c index aef240fdf8df6..328402ab64a3f 100644 --- a/net/wireless/scan.c +++ b/net/wireless/scan.c @@ -2022,7 +2022,11 @@ void cfg80211_update_assoc_bss_entry(struct wireless_dev *wdev,
spin_lock_bh(&rdev->bss_lock);
- if (WARN_ON(cbss->pub.channel == chan)) + /* + * Some APs use CSA also for bandwidth changes, i.e., without actually + * changing the control channel, so no need to update in such a case. + */ + if (cbss->pub.channel == chan) goto done;
/* use transmitting bss */