diff options
| -rw-r--r-- | net/mac80211/mlme.c | 57 |
1 files changed, 26 insertions, 31 deletions
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 059a4eba9fe..5dfc1e8a1a2 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -192,33 +192,27 @@ static u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata, enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; - prev_chantype = sdata->vif.bss_conf.channel_type; - /* HT is not supported */ - if (!sband->ht_cap.ht_supported) - enable_ht = false; - if (enable_ht) { - hti_cfreq = ieee80211_channel_to_frequency(hti->control_chan, - sband->band); - /* check that channel matches the right operating channel */ - if (local->hw.conf.channel->center_freq != hti_cfreq) { - /* Some APs mess this up, evidently. - * Netgear WNDR3700 sometimes reports 4 higher than - * the actual channel, for instance. - */ - printk(KERN_DEBUG - "%s: Wrong control channel in association" - " response: configured center-freq: %d" - " hti-cfreq: %d hti->control_chan: %d" - " band: %d. Disabling HT.\n", - sdata->name, - local->hw.conf.channel->center_freq, - hti_cfreq, hti->control_chan, - sband->band); - enable_ht = false; - } + hti_cfreq = ieee80211_channel_to_frequency(hti->control_chan, + sband->band); + /* check that channel matches the right operating channel */ + if (local->hw.conf.channel->center_freq != hti_cfreq) { + /* Some APs mess this up, evidently. + * Netgear WNDR3700 sometimes reports 4 higher than + * the actual channel, for instance. + */ + printk(KERN_DEBUG + "%s: Wrong control channel in association" + " response: configured center-freq: %d" + " hti-cfreq: %d hti->control_chan: %d" + " band: %d. Disabling HT.\n", + sdata->name, + local->hw.conf.channel->center_freq, + hti_cfreq, hti->control_chan, + sband->band); + enable_ht = false; } if (enable_ht) { @@ -335,9 +329,6 @@ static void ieee80211_add_ht_ie(struct ieee80211_sub_if_data *sdata, BUILD_BUG_ON(sizeof(ht_cap) != sizeof(sband->ht_cap)); - if (!sband->ht_cap.ht_supported) - return; - if (!ht_info_ie) return; @@ -405,7 +396,6 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) u16 capab; struct ieee80211_supported_band *sband; u32 rates = 0; - struct ieee80211_bss *bss = (void *)assoc_data->bss->priv; lockdep_assert_held(&ifmgd->mtx); @@ -566,8 +556,7 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) offset = noffset; } - if (!(ifmgd->flags & IEEE80211_STA_DISABLE_11N) && - bss->wmm_used && local->hw.queues >= 4) + if (!(ifmgd->flags & IEEE80211_STA_DISABLE_11N)) ieee80211_add_ht_ie(sdata, skb, assoc_data->ht_information_ie, sband, local->oper_channel, ifmgd->ap_smps); @@ -2147,7 +2136,6 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata, changed |= BSS_CHANGED_QOS; if (elems.ht_info_elem && elems.wmm_param && - (sdata->local->hw.queues >= 4) && !(ifmgd->flags & IEEE80211_STA_DISABLE_11N)) changed |= ieee80211_enable_ht(sdata, elems.ht_info_elem, cbss->bssid, ap_ht_cap_flags, @@ -3232,6 +3220,7 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; struct ieee80211_bss *bss = (void *)req->bss->priv; struct ieee80211_mgd_assoc_data *assoc_data; + struct ieee80211_supported_band *sband; struct sta_info *sta; const u8 *ssidie; int i, err; @@ -3290,6 +3279,12 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, if (req->flags & ASSOC_REQ_DISABLE_HT) ifmgd->flags |= IEEE80211_STA_DISABLE_11N; + /* Also disable HT if we don't support it or the AP doesn't use WMM */ + sband = local->hw.wiphy->bands[req->bss->channel->band]; + if (!sband->ht_cap.ht_supported || + local->hw.queues < 4 || !bss->wmm_used) + ifmgd->flags |= IEEE80211_STA_DISABLE_11N; + memcpy(&ifmgd->ht_capa, &req->ht_capa, sizeof(ifmgd->ht_capa)); memcpy(&ifmgd->ht_capa_mask, &req->ht_capa_mask, sizeof(ifmgd->ht_capa_mask)); |