Commit cb664981 authored Feb 27, 2014 by Johannes Berg

mac80211: fix association to 20/40 MHz VHT networks



When a VHT network uses 20 or 40 MHz as per the HT operation
information, the channel center frequency segment 0 field in
the VHT operation information is reserved, so ignore it.

This fixes association with such networks when the AP puts 0
into the field, previously we'd disconnect due to an invalid
channel with the message
wlan0: AP VHT information is invalid, disable VHT

Cc: stable@vger.kernel.org
Fixes: f2d9d270 ("mac80211: support VHT association")
Reported-by: Tim Nelson <tim.l.nelson@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

parent 092008ab

net/mac80211/mlme.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -222,6 +222,7 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata,
		switch (vht_oper->chan_width) {
		case IEEE80211_VHT_CHANWIDTH_USE_HT:
		vht_chandef.width = chandef->width;
		vht_chandef.center_freq1 = chandef->center_freq1;
		break;
		case IEEE80211_VHT_CHANWIDTH_80MHZ:
		vht_chandef.width = NL80211_CHAN_WIDTH_80;

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