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mac80211: skip disabled channels in VHT check

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The patch "40a11ca mac80211: check if channels allow 80 MHz for VHT
probe requests" considered disabled channels as VHT enabled, and
mistakenly sent out probe-requests with the VHT IE.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Arik Nemtsov 2015-01-01 13:43:17 +02:00 • committed by Johannes Berg
parent 71b836eca7
commit fa44b988d2
1 changed files with 6 additions and 4 deletions
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6
net/mac80211/util.c
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@ -1470,11 +1470,13 @@ static int ieee80211_build_preq_ies_band(struct ieee80211_local *local,
/* Check if any channel in this sband supports at least 80 MHz */ /* Check if any channel in this sband supports at least 80 MHz */
for (i = 0; i < sband->n_channels; i++) { for (i = 0; i < sband->n_channels; i++) {
if (!(sband->channels[i].flags & IEEE80211_CHAN_NO_80MHZ)) { if (sband->channels[i].flags & (IEEE80211_CHAN_DISABLED |
IEEE80211_CHAN_NO_80MHZ))
continue;
have_80mhz = true; have_80mhz = true;
break; break;
} }
}
if (sband->vht_cap.vht_supported && have_80mhz) { if (sband->vht_cap.vht_supported && have_80mhz) {
if (end - pos < 2 + sizeof(struct ieee80211_vht_cap)) if (end - pos < 2 + sizeof(struct ieee80211_vht_cap))