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mac80211: fix association to 20/40 MHz VHT networks 

commit cb664981607a6b5b3d670ad57bbda893b2528d96 upstream.

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

Fixes: f2d9d270c1 ("mac80211: support VHT association")
Reported-by: Tim Nelson <tim.l.nelson@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Johannes Berg 2014-02-27 20:47:53 +01:00 committed by Greg Kroah-Hartman
parent e713fe3d4b
commit c02d9a9697
1 changed files with 1 additions and 0 deletions
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net/mac80211/mlme.c
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@ -310,6 +310,7 @@ 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;