From cd50ac0f31d111cf6c2a7b953a67703d5522ef55 Mon Sep 17 00:00:00 2001 From: Vasanthakumar Thiagarajan Date: Tue, 18 Apr 2017 17:39:19 +0530 Subject: [PATCH] cfg80211: Fix dfs state propagation for non-DFS center channel When part of a bigger bandwidth (160 MHz) channel falls in DFS channel range it is possible that the center frequency may not necessarily be a radar channel. Remove the sanity check on channel flag for IEEE80211_CHAN_RADAR in regulatory_propagate_dfs_state(), this should fix the dfs state propagation for non-DFS center freq which has DFS channels in it's bandwidth, should also fix unnecessary WARN_ON() spam in regulatory_propagate_dfs_state(). Fixes: 8976672736d6 ("cfg80211: Share Channel DFS state across wiphys of same DFS domain") Reported-by: Johannes Berg Signed-off-by: Vasanthakumar Thiagarajan Signed-off-by: Johannes Berg --- net/wireless/reg.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/net/wireless/reg.c b/net/wireless/reg.c index a38f315819cd..5fae296a6a58 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -3244,9 +3244,6 @@ void regulatory_propagate_dfs_state(struct wiphy *wiphy, if (WARN_ON(!cfg80211_chandef_valid(chandef))) return; - if (WARN_ON(!(chandef->chan->flags & IEEE80211_CHAN_RADAR))) - return; - list_for_each_entry(rdev, &cfg80211_rdev_list, list) { if (wiphy == &rdev->wiphy) continue;