cfg80211: check no-OFDM flag for channels wider than 20 MHz

For channels wider than 20 MHz OFDM will be used, so when
checking whether or not a channel is usable, check for the
no-OFDM flag if the channel is wider than 20 MHz.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/wireless/chan.c b/net/wireless/chan.c
index b5f69831e31848ec2af3fb46d4bf594ee17e9319..a7990bb165295bcefbd88c6396026e2db8b7fa38 100644 (file)
--- a/net/wireless/chan.c
+++ b/net/wireless/chan.c
@@ -265,6 +265,9 @@ bool cfg80211_chandef_usable(struct wiphy *wiphy,
 
        /* TODO: missing regulatory check on 80/160 bandwidth */
 
+       if (width > 20)
+               prohibited_flags |= IEEE80211_CHAN_NO_OFDM;
+
        if (!cfg80211_secondary_chans_ok(wiphy, chandef->center_freq1,
                                         width, prohibited_flags))
                return false;