diff options
author | Johannes Berg <johannes@sipsolutions.net> | 2008-10-09 12:13:49 +0200 |
---|---|---|
committer | John W. Linville <linville@tuxdriver.com> | 2008-10-31 19:00:06 -0400 |
commit | d9fe60dea7779d412b34679f1177c5ca1940ea8d (patch) | |
tree | a51e16b013f7c1d16ded502cb32c03872bcbfcaa /net | |
parent | 40333e4fb476014cdd939d27e20eb54573172b32 (diff) |
802.11: clean up/fix HT support
This patch cleans up a number of things:
* the unusable definition of the HT capabilities/HT information
information elements
* variable names that are hard to understand
* mac80211: move ieee80211_handle_ht to ht.c and remove the unused
enable_ht parameter
* mac80211: fix bug with MCS rate 32 in ieee80211_handle_ht
* mac80211: fix bug with casting the result of ieee80211_bss_get_ie
to an information element _contents_ rather than the
whole element, add size checking (another out-of-bounds
access bug fixed!)
* mac80211: remove some unused return values in favour of BUG_ON
checking
* a few minor other things
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net')
-rw-r--r-- | net/mac80211/cfg.c | 7 | ||||
-rw-r--r-- | net/mac80211/ht.c | 151 | ||||
-rw-r--r-- | net/mac80211/ieee80211_i.h | 16 | ||||
-rw-r--r-- | net/mac80211/main.c | 94 | ||||
-rw-r--r-- | net/mac80211/mlme.c | 45 | ||||
-rw-r--r-- | net/mac80211/util.c | 4 | ||||
-rw-r--r-- | net/mac80211/wext.c | 4 |
7 files changed, 167 insertions, 154 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index cf3fd5d60665..a5dea617aab3 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -633,10 +633,9 @@ static void sta_apply_parameters(struct ieee80211_local *local, sta->sta.supp_rates[local->oper_channel->band] = rates; } - if (params->ht_capa) { - ieee80211_ht_cap_ie_to_ht_info(params->ht_capa, - &sta->sta.ht_info); - } + if (params->ht_capa) + ieee80211_ht_cap_ie_to_sta_ht_cap(params->ht_capa, + &sta->sta.ht_cap); if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) { switch (params->plink_action) { diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c index b854483cf23f..e2d121bf2745 100644 --- a/net/mac80211/ht.c +++ b/net/mac80211/ht.c @@ -20,37 +20,33 @@ #include "sta_info.h" #include "wme.h" -int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie, - struct ieee80211_ht_info *ht_info) +void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_ht_cap *ht_cap_ie, + struct ieee80211_sta_ht_cap *ht_cap) { - if (ht_info == NULL) - return -EINVAL; + BUG_ON(!ht_cap); - memset(ht_info, 0, sizeof(*ht_info)); + memset(ht_cap, 0, sizeof(*ht_cap)); if (ht_cap_ie) { u8 ampdu_info = ht_cap_ie->ampdu_params_info; - ht_info->ht_supported = 1; - ht_info->cap = le16_to_cpu(ht_cap_ie->cap_info); - ht_info->ampdu_factor = - ampdu_info & IEEE80211_HT_CAP_AMPDU_FACTOR; - ht_info->ampdu_density = - (ampdu_info & IEEE80211_HT_CAP_AMPDU_DENSITY) >> 2; - memcpy(ht_info->supp_mcs_set, ht_cap_ie->supp_mcs_set, 16); + ht_cap->ht_supported = true; + ht_cap->cap = le16_to_cpu(ht_cap_ie->cap_info); + ht_cap->ampdu_factor = + ampdu_info & IEEE80211_HT_AMPDU_PARM_FACTOR; + ht_cap->ampdu_density = + (ampdu_info & IEEE80211_HT_AMPDU_PARM_DENSITY) >> 2; + memcpy(&ht_cap->mcs, &ht_cap_ie->mcs, sizeof(ht_cap->mcs)); } else - ht_info->ht_supported = 0; - - return 0; + ht_cap->ht_supported = false; } -int ieee80211_ht_addt_info_ie_to_ht_bss_info( - struct ieee80211_ht_addt_info *ht_add_info_ie, +void ieee80211_ht_info_ie_to_ht_bss_info( + struct ieee80211_ht_info *ht_add_info_ie, struct ieee80211_ht_bss_info *bss_info) { - if (bss_info == NULL) - return -EINVAL; + BUG_ON(!bss_info); memset(bss_info, 0, sizeof(*bss_info)); @@ -62,8 +58,119 @@ int ieee80211_ht_addt_info_ie_to_ht_bss_info( bss_info->bss_cap = ht_add_info_ie->ht_param; bss_info->bss_op_mode = (u8)(op_mode & 0xff); } +} + +/* + * ieee80211_handle_ht should be called only after the operating band + * has been determined as ht configuration depends on the hw's + * HT abilities for a specific band. + */ +u32 ieee80211_handle_ht(struct ieee80211_local *local, + struct ieee80211_sta_ht_cap *req_ht_cap, + struct ieee80211_ht_bss_info *req_bss_cap) +{ + struct ieee80211_conf *conf = &local->hw.conf; + struct ieee80211_supported_band *sband; + struct ieee80211_sta_ht_cap ht_cap; + struct ieee80211_ht_bss_info ht_bss_conf; + u32 changed = 0; + int i; + u8 max_tx_streams; + u8 tx_mcs_set_cap; + bool enable_ht = true; + + sband = local->hw.wiphy->bands[conf->channel->band]; + + memset(&ht_cap, 0, sizeof(ht_cap)); + memset(&ht_bss_conf, 0, sizeof(struct ieee80211_ht_bss_info)); + + /* HT is not supported */ + if (!sband->ht_cap.ht_supported) + enable_ht = false; + + /* disable HT */ + if (!enable_ht) { + if (conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) + changed |= BSS_CHANGED_HT; + conf->flags &= ~IEEE80211_CONF_SUPPORT_HT_MODE; + conf->ht_cap.ht_supported = false; + return changed; + } + + + if (!(conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE)) + changed |= BSS_CHANGED_HT; + + conf->flags |= IEEE80211_CONF_SUPPORT_HT_MODE; + ht_cap.ht_supported = true; + + ht_cap.cap = req_ht_cap->cap & sband->ht_cap.cap; + ht_cap.cap &= ~IEEE80211_HT_CAP_SM_PS; + ht_cap.cap |= sband->ht_cap.cap & IEEE80211_HT_CAP_SM_PS; + + ht_bss_conf.primary_channel = req_bss_cap->primary_channel; + ht_bss_conf.bss_cap = req_bss_cap->bss_cap; + ht_bss_conf.bss_op_mode = req_bss_cap->bss_op_mode; + + ht_cap.ampdu_factor = req_ht_cap->ampdu_factor; + ht_cap.ampdu_density = req_ht_cap->ampdu_density; + + /* own MCS TX capabilities */ + tx_mcs_set_cap = sband->ht_cap.mcs.tx_params; + + /* + * configure supported Tx MCS according to requested MCS + * (based in most cases on Rx capabilities of peer) and self + * Tx MCS capabilities (as defined by low level driver HW + * Tx capabilities) + */ + + /* can we TX with MCS rates? */ + if (!(tx_mcs_set_cap & IEEE80211_HT_MCS_TX_DEFINED)) + goto check_changed; + + /* Counting from 0, therefore +1 */ + if (tx_mcs_set_cap & IEEE80211_HT_MCS_TX_RX_DIFF) + max_tx_streams = + ((tx_mcs_set_cap & IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK) + >> IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT) + 1; + else + max_tx_streams = IEEE80211_HT_MCS_TX_MAX_STREAMS; + + /* + * 802.11n D5.0 20.3.5 / 20.6 says: + * - indices 0 to 7 and 32 are single spatial stream + * - 8 to 31 are multiple spatial streams using equal modulation + * [8..15 for two streams, 16..23 for three and 24..31 for four] + * - remainder are multiple spatial streams using unequal modulation + */ + for (i = 0; i < max_tx_streams; i++) + ht_cap.mcs.rx_mask[i] = + sband->ht_cap.mcs.rx_mask[i] & + req_ht_cap->mcs.rx_mask[i]; + + if (tx_mcs_set_cap & IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION) + for (i = IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE; + i < IEEE80211_HT_MCS_MASK_LEN; i++) + ht_cap.mcs.rx_mask[i] = + sband->ht_cap.mcs.rx_mask[i] & + req_ht_cap->mcs.rx_mask[i]; + + /* handle MCS rate 32 too */ + if (sband->ht_cap.mcs.rx_mask[32/8] & + req_ht_cap->mcs.rx_mask[32/8] & 1) + ht_cap.mcs.rx_mask[32/8] |= 1; + + check_changed: + /* if bss configuration changed store the new one */ + if (memcmp(&conf->ht_cap, &ht_cap, sizeof(ht_cap)) || + memcmp(&conf->ht_bss_conf, &ht_bss_conf, sizeof(ht_bss_conf))) { + changed |= BSS_CHANGED_HT; + memcpy(&conf->ht_cap, &ht_cap, sizeof(ht_cap)); + memcpy(&conf->ht_bss_conf, &ht_bss_conf, sizeof(ht_bss_conf)); + } - return 0; + return changed; } static void ieee80211_send_addba_request(struct ieee80211_sub_if_data *sdata, @@ -794,7 +901,7 @@ void ieee80211_process_addba_request(struct ieee80211_local *local, * check if configuration can support the BA policy * and if buffer size does not exceeds max value */ if (((ba_policy != 1) - && (!(conf->ht_conf.cap & IEEE80211_HT_CAP_DELAY_BA))) + && (!(conf->ht_cap.cap & IEEE80211_HT_CAP_DELAY_BA))) || (buf_size > IEEE80211_MAX_AMPDU_BUF)) { status = WLAN_STATUS_INVALID_QOS_PARAM; #ifdef CONFIG_MAC80211_HT_DEBUG @@ -812,7 +919,7 @@ void ieee80211_process_addba_request(struct ieee80211_local *local, sband = local->hw.wiphy->bands[conf->channel->band]; buf_size = IEEE80211_MIN_AMPDU_BUF; - buf_size = buf_size << sband->ht_info.ampdu_factor; + buf_size = buf_size << sband->ht_cap.ampdu_factor; } diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index f49cb9e8bb42..ae4ca3e8b443 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -817,7 +817,7 @@ struct ieee802_11_elems { u8 *wmm_info; u8 *wmm_param; struct ieee80211_ht_cap *ht_cap_elem; - struct ieee80211_ht_addt_info *ht_info_elem; + struct ieee80211_ht_info *ht_info_elem; u8 *mesh_config; u8 *mesh_id; u8 *peer_link; @@ -880,9 +880,6 @@ static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr) int ieee80211_hw_config(struct ieee80211_local *local); int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed); void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx); -u32 ieee80211_handle_ht(struct ieee80211_local *local, int enable_ht, - struct ieee80211_ht_info *req_ht_cap, - struct ieee80211_ht_bss_info *req_bss_cap); void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, u32 changed); void ieee80211_configure_filter(struct ieee80211_local *local); @@ -963,11 +960,14 @@ int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev); int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev); /* HT */ -int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie, - struct ieee80211_ht_info *ht_info); -int ieee80211_ht_addt_info_ie_to_ht_bss_info( - struct ieee80211_ht_addt_info *ht_add_info_ie, +void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_ht_cap *ht_cap_ie, + struct ieee80211_sta_ht_cap *ht_cap); +void ieee80211_ht_info_ie_to_ht_bss_info( + struct ieee80211_ht_info *ht_add_info_ie, struct ieee80211_ht_bss_info *bss_info); +u32 ieee80211_handle_ht(struct ieee80211_local *local, + struct ieee80211_sta_ht_cap *req_ht_cap, + struct ieee80211_ht_bss_info *req_bss_cap); void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u16 ssn); void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *da, diff --git a/net/mac80211/main.c b/net/mac80211/main.c index c427954fe8e8..07f812755e55 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -232,100 +232,6 @@ int ieee80211_hw_config(struct ieee80211_local *local) return ret; } -/** - * ieee80211_handle_ht should be used only after legacy configuration - * has been determined namely band, as ht configuration depends upon - * the hardware's HT abilities for a _specific_ band. - */ -u32 ieee80211_handle_ht(struct ieee80211_local *local, int enable_ht, - struct ieee80211_ht_info *req_ht_cap, - struct ieee80211_ht_bss_info *req_bss_cap) -{ - struct ieee80211_conf *conf = &local->hw.conf; - struct ieee80211_supported_band *sband; - struct ieee80211_ht_info ht_conf; - struct ieee80211_ht_bss_info ht_bss_conf; - u32 changed = 0; - int i; - u8 max_tx_streams = IEEE80211_HT_CAP_MAX_STREAMS; - u8 tx_mcs_set_cap; - - sband = local->hw.wiphy->bands[conf->channel->band]; - - memset(&ht_conf, 0, sizeof(struct ieee80211_ht_info)); - memset(&ht_bss_conf, 0, sizeof(struct ieee80211_ht_bss_info)); - - /* HT is not supported */ - if (!sband->ht_info.ht_supported) { - conf->flags &= ~IEEE80211_CONF_SUPPORT_HT_MODE; - goto out; - } - - /* disable HT */ - if (!enable_ht) { - if (conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) - changed |= BSS_CHANGED_HT; - conf->flags &= ~IEEE80211_CONF_SUPPORT_HT_MODE; - conf->ht_conf.ht_supported = 0; - goto out; - } - - - if (!(conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE)) - changed |= BSS_CHANGED_HT; - - conf->flags |= IEEE80211_CONF_SUPPORT_HT_MODE; - ht_conf.ht_supported = 1; - - ht_conf.cap = req_ht_cap->cap & sband->ht_info.cap; - ht_conf.cap &= ~(IEEE80211_HT_CAP_SM_PS); - ht_conf.cap |= sband->ht_info.cap & IEEE80211_HT_CAP_SM_PS; - ht_bss_conf.primary_channel = req_bss_cap->primary_channel; - ht_bss_conf.bss_cap = req_bss_cap->bss_cap; - ht_bss_conf.bss_op_mode = req_bss_cap->bss_op_mode; - - ht_conf.ampdu_factor = req_ht_cap->ampdu_factor; - ht_conf.ampdu_density = req_ht_cap->ampdu_density; - - /* Bits 96-100 */ - tx_mcs_set_cap = sband->ht_info.supp_mcs_set[12]; - - /* configure suppoerted Tx MCS according to requested MCS - * (based in most cases on Rx capabilities of peer) and self - * Tx MCS capabilities (as defined by low level driver HW - * Tx capabilities) */ - if (!(tx_mcs_set_cap & IEEE80211_HT_CAP_MCS_TX_DEFINED)) - goto check_changed; - - /* Counting from 0 therfore + 1 */ - if (tx_mcs_set_cap & IEEE80211_HT_CAP_MCS_TX_RX_DIFF) - max_tx_streams = ((tx_mcs_set_cap & - IEEE80211_HT_CAP_MCS_TX_STREAMS) >> 2) + 1; - - for (i = 0; i < max_tx_streams; i++) - ht_conf.supp_mcs_set[i] = - sband->ht_info.supp_mcs_set[i] & - req_ht_cap->supp_mcs_set[i]; - - if (tx_mcs_set_cap & IEEE80211_HT_CAP_MCS_TX_UEQM) - for (i = IEEE80211_SUPP_MCS_SET_UEQM; - i < IEEE80211_SUPP_MCS_SET_LEN; i++) - ht_conf.supp_mcs_set[i] = - sband->ht_info.supp_mcs_set[i] & - req_ht_cap->supp_mcs_set[i]; - -check_changed: - /* if bss configuration changed store the new one */ - if (memcmp(&conf->ht_conf, &ht_conf, sizeof(ht_conf)) || - memcmp(&conf->ht_bss_conf, &ht_bss_conf, sizeof(ht_bss_conf))) { - changed |= BSS_CHANGED_HT; - memcpy(&conf->ht_conf, &ht_conf, sizeof(ht_conf)); - memcpy(&conf->ht_bss_conf, &ht_bss_conf, sizeof(ht_bss_conf)); - } -out: - return changed; -} - void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, u32 changed) { diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 829995e740a7..196dd39f6286 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -236,7 +236,7 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata, struct ieee80211_local *local = sdata->local; struct sk_buff *skb; struct ieee80211_mgmt *mgmt; - u8 *pos, *ies, *ht_add_ie; + u8 *pos, *ies, *ht_ie; int i, len, count, rates_len, supp_rates_len; u16 capab; struct ieee80211_bss *bss; @@ -393,24 +393,25 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata, /* wmm support is a must to HT */ if (wmm && (ifsta->flags & IEEE80211_STA_WMM_ENABLED) && - sband->ht_info.ht_supported && - (ht_add_ie = ieee80211_bss_get_ie(bss, WLAN_EID_HT_EXTRA_INFO))) { - struct ieee80211_ht_addt_info *ht_add_info = - (struct ieee80211_ht_addt_info *)ht_add_ie; - u16 cap = sband->ht_info.cap; + sband->ht_cap.ht_supported && + (ht_ie = ieee80211_bss_get_ie(bss, WLAN_EID_HT_INFORMATION)) && + ht_ie[1] >= sizeof(struct ieee80211_ht_info)) { + struct ieee80211_ht_info *ht_info = + (struct ieee80211_ht_info *)(ht_ie + 2); + u16 cap = sband->ht_cap.cap; __le16 tmp; u32 flags = local->hw.conf.channel->flags; - switch (ht_add_info->ht_param & IEEE80211_HT_IE_CHA_SEC_OFFSET) { - case IEEE80211_HT_IE_CHA_SEC_ABOVE: + switch (ht_info->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) { + case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: if (flags & IEEE80211_CHAN_NO_FAT_ABOVE) { - cap &= ~IEEE80211_HT_CAP_SUP_WIDTH; + cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; cap &= ~IEEE80211_HT_CAP_SGI_40; } break; - case IEEE80211_HT_IE_CHA_SEC_BELOW: + case IEEE80211_HT_PARAM_CHA_SEC_BELOW: if (flags & IEEE80211_CHAN_NO_FAT_BELOW) { - cap &= ~IEEE80211_HT_CAP_SUP_WIDTH; + cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; cap &= ~IEEE80211_HT_CAP_SGI_40; } break; @@ -424,9 +425,9 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata, memcpy(pos, &tmp, sizeof(u16)); pos += sizeof(u16); /* TODO: needs a define here for << 2 */ - *pos++ = sband->ht_info.ampdu_factor | - (sband->ht_info.ampdu_density << 2); - memcpy(pos, sband->ht_info.supp_mcs_set, 16); + *pos++ = sband->ht_cap.ampdu_factor | + (sband->ht_cap.ampdu_density << 2); + memcpy(pos, &sband->ht_cap.mcs, sizeof(sband->ht_cap.mcs)); } kfree(ifsta->assocreq_ies); @@ -730,7 +731,7 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata, if (conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) { changed |= BSS_CHANGED_HT; sdata->bss_conf.assoc_ht = 1; - sdata->bss_conf.ht_conf = &conf->ht_conf; + sdata->bss_conf.ht_cap = &conf->ht_cap; sdata->bss_conf.ht_bss_conf = &conf->ht_bss_conf; } @@ -850,7 +851,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, changed |= BSS_CHANGED_HT; sdata->bss_conf.assoc_ht = 0; - sdata->bss_conf.ht_conf = NULL; + sdata->bss_conf.ht_cap = NULL; sdata->bss_conf.ht_bss_conf = NULL; ieee80211_led_assoc(local, 0); @@ -1335,11 +1336,11 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, if (elems.ht_cap_elem && elems.ht_info_elem && elems.wmm_param && (ifsta->flags & IEEE80211_STA_WMM_ENABLED)) { struct ieee80211_ht_bss_info bss_info; - ieee80211_ht_cap_ie_to_ht_info( - elems.ht_cap_elem, &sta->sta.ht_info); - ieee80211_ht_addt_info_ie_to_ht_bss_info( + ieee80211_ht_cap_ie_to_sta_ht_cap( + elems.ht_cap_elem, &sta->sta.ht_cap); + ieee80211_ht_info_ie_to_ht_bss_info( elems.ht_info_elem, &bss_info); - ieee80211_handle_ht(local, 1, &sta->sta.ht_info, &bss_info); + ieee80211_handle_ht(local, &sta->sta.ht_cap, &bss_info); } rate_control_rate_init(sta); @@ -1696,9 +1697,9 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata, elems.wmm_param && conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) { struct ieee80211_ht_bss_info bss_info; - ieee80211_ht_addt_info_ie_to_ht_bss_info( + ieee80211_ht_info_ie_to_ht_bss_info( elems.ht_info_elem, &bss_info); - changed |= ieee80211_handle_ht(local, 1, &conf->ht_conf, + changed |= ieee80211_handle_ht(local, &conf->ht_cap, &bss_info); } diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 1b605457017e..9941a60a2327 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -532,8 +532,8 @@ void ieee802_11_parse_elems(u8 *start, size_t len, if (elen >= sizeof(struct ieee80211_ht_cap)) elems->ht_cap_elem = (void *)pos; break; - case WLAN_EID_HT_EXTRA_INFO: - if (elen >= sizeof(struct ieee80211_ht_addt_info)) + case WLAN_EID_HT_INFORMATION: + if (elen >= sizeof(struct ieee80211_ht_info)) elems->ht_info_elem = (void *)pos; break; case WLAN_EID_MESH_ID: diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c index 29c41040c8c9..a3af15141244 100644 --- a/net/mac80211/wext.c +++ b/net/mac80211/wext.c @@ -147,7 +147,7 @@ static int ieee80211_ioctl_giwname(struct net_device *dev, sband = local->hw.wiphy->bands[IEEE80211_BAND_5GHZ]; if (sband) { is_a = 1; - is_ht |= sband->ht_info.ht_supported; + is_ht |= sband->ht_cap.ht_supported; } sband = local->hw.wiphy->bands[IEEE80211_BAND_2GHZ]; @@ -160,7 +160,7 @@ static int ieee80211_ioctl_giwname(struct net_device *dev, if (sband->bitrates[i].bitrate == 60) is_g = 1; } - is_ht |= sband->ht_info.ht_supported; + is_ht |= sband->ht_cap.ht_supported; } strcpy(name, "IEEE 802.11"); |