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Commit 2c390e44 authored by Dmitry Lebed's avatar Dmitry Lebed Committed by Johannes Berg
Browse files

cfg80211: enable use of non-cleared DFS channels for DFS offload 



Currently channel switch/start_ap to DFS channel cannot be done to
non-CAC-cleared channel even if DFS offload if enabled.
Make non-cleared DFS channels available if DFS offload is enabled.
CAC will be started by HW after channel change, start_ap call, etc.

Signed-off-by: default avatarDmitry Lebed <dlebed@quantenna.com>
Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent 85096451

net/wireless/chan.c

+7 −2
Original line number Diff line number Diff line
@@ -579,6 +579,10 @@ static bool cfg80211_get_chans_dfs_available(struct wiphy *wiphy, 
{

	struct ieee80211_channel *c;

	u32 freq, start_freq, end_freq;

	bool dfs_offload;



	dfs_offload = wiphy_ext_feature_isset(wiphy,

					      NL80211_EXT_FEATURE_DFS_OFFLOAD);



	start_freq = cfg80211_get_start_freq(center_freq, bandwidth);

	end_freq = cfg80211_get_end_freq(center_freq, bandwidth);
@@ -597,7 +601,8 @@ static bool cfg80211_get_chans_dfs_available(struct wiphy *wiphy, 
			return false;



		if ((c->flags & IEEE80211_CHAN_RADAR) &&

		    (c->dfs_state != NL80211_DFS_AVAILABLE))

		    (c->dfs_state != NL80211_DFS_AVAILABLE) &&

		    !(c->dfs_state == NL80211_DFS_USABLE && dfs_offload))

			return false;

	}