Commit cd50ac0f authored Apr 18, 2017 by Vasanthakumar Thiagarajan Committed by Johannes Berg Apr 25, 2017

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: 89766727 ("cfg80211: Share Channel DFS state across wiphys of same DFS domain")
Reported-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qti.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

parent 5e1fc7c5

net/wireless/reg.c

+0 −3

Original line number	Diff line number	Diff line
		@@ -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;

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