[RFC] cfg80211: allow HT20 channels on devices incabable of HT40

Commit Message

Helmut Schaa May 17, 2010, 2:58 p.m. UTC

None

Patch

diff --git a/net/wireless/chan.c b/net/wireless/chan.c
index d92d088..647832a 100644
--- a/net/wireless/chan.c
+++ b/net/wireless/chan.c
@@ -35,8 +35,9 @@  rdev_freq_to_chan(struct cfg80211_registered_device *rdev,
 		if (!ht_cap->ht_supported)
 			return NULL;
 
-		if (!(ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) ||
-		    ht_cap->cap & IEEE80211_HT_CAP_40MHZ_INTOLERANT)
+		if (channel_type != NL80211_CHAN_HT20 &&
+		    (!(ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) ||
+		    ht_cap->cap & IEEE80211_HT_CAP_40MHZ_INTOLERANT))
 			return NULL;
 	}