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| author | Ilan Peer <ilan.peer@intel.com> | 2020-03-26 15:09:43 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2020-03-26 15:50:10 +0100 |
| commit | 05dcb8bb258575a8dd3499d0d78bd2db633c2b23 (patch) | |
| tree | 74dc38485154814d918b2d93368dabcd42d94f3a /net/wireless | |
| parent | a0761a301746ec2d92d7fcb82af69c0a6a4339aa (diff) | |
| download | linux-05dcb8bb258575a8dd3499d0d78bd2db633c2b23.tar.gz linux-05dcb8bb258575a8dd3499d0d78bd2db633c2b23.tar.bz2 linux-05dcb8bb258575a8dd3499d0d78bd2db633c2b23.zip | |
cfg80211: Do not warn on same channel at the end of CSA
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.I6710376b1b4257e5f4712fc7ab16e2b638d512aa@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless')
| -rw-r--r-- | net/wireless/scan.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/net/wireless/scan.c b/net/wireless/scan.c index aef240fdf8df..328402ab64a3 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 */ |