wireless: rename ht_info to ht_operation

Since some of the HT code pre-dates 802.11n-2009
some names are wrong. The one that bothers me most
is that "HT operation" is called "HT information"
in our code and that causes confusion.

Rename "HT information" to "HT operation" and also
the control_chan field to primary_chan to match
the name used in the spec.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 25 insertions, 24 deletions

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index f733aeb50e8..c59bc509ed6 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -177,7 +177,7 @@ static int ecw2cw(int ecw)
  * HT abilities for a specific band.
  */
 static u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
-			       struct ieee80211_ht_info *hti,
+			       struct ieee80211_ht_operation *ht_oper,
 			       const u8 *bssid, u16 ap_ht_cap_flags,
 			       bool beacon_htcap_ie)
 {
@@ -185,7 +185,7 @@ static u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_supported_band *sband;
 	struct sta_info *sta;
 	u32 changed = 0;
-	int hti_cfreq;
+	int ht_cfreq;
 	u16 ht_opmode;
 	bool enable_ht = true;
 	enum nl80211_channel_type prev_chantype;
@@ -196,10 +196,10 @@ static u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
 	prev_chantype = sdata->vif.bss_conf.channel_type;
 
 
-	hti_cfreq = ieee80211_channel_to_frequency(hti->control_chan,
-						   sband->band);
+	ht_cfreq = ieee80211_channel_to_frequency(ht_oper->primary_chan,
+						  sband->band);
 	/* check that channel matches the right operating channel */
-	if (local->hw.conf.channel->center_freq != hti_cfreq) {
+	if (local->hw.conf.channel->center_freq != ht_cfreq) {
 		/* Some APs mess this up, evidently.
 		 * Netgear WNDR3700 sometimes reports 4 higher than
 		 * the actual channel, for instance.
@@ -207,11 +207,11 @@ static u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
 		printk(KERN_DEBUG
 		       "%s: Wrong control channel in association"
 		       " response: configured center-freq: %d"
-		       " hti-cfreq: %d  hti->control_chan: %d"
+		       " ht-cfreq: %d  ht->control_chan: %d"
 		       " band: %d.  Disabling HT.\n",
 		       sdata->name,
 		       local->hw.conf.channel->center_freq,
-		       hti_cfreq, hti->control_chan,
+		       ht_cfreq, ht_oper->primary_chan,
 		       sband->band);
 		enable_ht = false;
 	}
@@ -222,8 +222,9 @@ static u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
 		if (!(ap_ht_cap_flags & IEEE80211_HT_CAP_40MHZ_INTOLERANT) &&
 		    !ieee80111_cfg_override_disables_ht40(sdata) &&
 		    (sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) &&
-		    (hti->ht_param & IEEE80211_HT_PARAM_CHAN_WIDTH_ANY)) {
-			switch(hti->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) {
+		    (ht_oper->ht_param & IEEE80211_HT_PARAM_CHAN_WIDTH_ANY)) {
+			switch (ht_oper->ht_param &
+					IEEE80211_HT_PARAM_CHA_SEC_OFFSET) {
 			case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
 				rx_channel_type = NL80211_CHAN_HT40PLUS;
 				break;
@@ -278,7 +279,7 @@ static u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
 				IEEE80211_QUEUE_STOP_REASON_CHTYPE_CHANGE);
 	}
 
-	ht_opmode = le16_to_cpu(hti->operation_mode);
+	ht_opmode = le16_to_cpu(ht_oper->operation_mode);
 
 	/* if bss configuration changed store the new one */
 	if (sdata->ht_opmode_valid != enable_ht ||
@@ -316,12 +317,12 @@ static int ieee80211_compatible_rates(const u8 *supp_rates, int supp_rates_len,
 }
 
 static void ieee80211_add_ht_ie(struct ieee80211_sub_if_data *sdata,
-				struct sk_buff *skb, const u8 *ht_info_ie,
+				struct sk_buff *skb, const u8 *ht_oper_ie,
 				struct ieee80211_supported_band *sband,
 				struct ieee80211_channel *channel,
 				enum ieee80211_smps_mode smps)
 {
-	struct ieee80211_ht_info *ht_info;
+	struct ieee80211_ht_operation *ht_oper;
 	u8 *pos;
 	u32 flags = channel->flags;
 	u16 cap;
@@ -329,21 +330,21 @@ static void ieee80211_add_ht_ie(struct ieee80211_sub_if_data *sdata,
 
 	BUILD_BUG_ON(sizeof(ht_cap) != sizeof(sband->ht_cap));
 
-	if (!ht_info_ie)
+	if (!ht_oper_ie)
 		return;
 
-	if (ht_info_ie[1] < sizeof(struct ieee80211_ht_info))
+	if (ht_oper_ie[1] < sizeof(struct ieee80211_ht_operation))
 		return;
 
 	memcpy(&ht_cap, &sband->ht_cap, sizeof(ht_cap));
 	ieee80211_apply_htcap_overrides(sdata, &ht_cap);
 
-	ht_info = (struct ieee80211_ht_info *)(ht_info_ie + 2);
+	ht_oper = (struct ieee80211_ht_operation *)(ht_oper_ie + 2);
 
 	/* determine capability flags */
 	cap = ht_cap.cap;
 
-	switch (ht_info->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) {
+	switch (ht_oper->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) {
 	case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
 		if (flags & IEEE80211_CHAN_NO_HT40PLUS) {
 			cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
@@ -557,7 +558,7 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
 	}
 
 	if (!(ifmgd->flags & IEEE80211_STA_DISABLE_11N))
-		ieee80211_add_ht_ie(sdata, skb, assoc_data->ht_information_ie,
+		ieee80211_add_ht_ie(sdata, skb, assoc_data->ht_operation_ie,
 				    sband, local->oper_channel, ifmgd->ap_smps);
 
 	/* if present, add any custom non-vendor IEs that go after HT */
@@ -2094,9 +2095,9 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata,
 		ieee80211_set_wmm_default(sdata, false);
 	changed |= BSS_CHANGED_QOS;
 
-	if (elems.ht_info_elem && elems.wmm_param &&
+	if (elems.ht_operation && elems.wmm_param &&
 	    !(ifmgd->flags & IEEE80211_STA_DISABLE_11N))
-		changed |= ieee80211_enable_ht(sdata, elems.ht_info_elem,
+		changed |= ieee80211_enable_ht(sdata, elems.ht_operation,
 					       cbss->bssid, ap_ht_cap_flags,
 					       false);
 
@@ -2321,7 +2322,7 @@ static const u64 care_about_ies =
 	(1ULL << WLAN_EID_CHANNEL_SWITCH) |
 	(1ULL << WLAN_EID_PWR_CONSTRAINT) |
 	(1ULL << WLAN_EID_HT_CAPABILITY) |
-	(1ULL << WLAN_EID_HT_INFORMATION);
+	(1ULL << WLAN_EID_HT_OPERATION);
 
 static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 				     struct ieee80211_mgmt *mgmt,
@@ -2506,7 +2507,7 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 			erp_valid, erp_value);
 
 
-	if (elems.ht_cap_elem && elems.ht_info_elem && elems.wmm_param &&
+	if (elems.ht_cap_elem && elems.ht_operation && elems.wmm_param &&
 	    !(ifmgd->flags & IEEE80211_STA_DISABLE_11N)) {
 		struct sta_info *sta;
 		struct ieee80211_supported_band *sband;
@@ -2529,7 +2530,7 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 
 		rcu_read_unlock();
 
-		changed |= ieee80211_enable_ht(sdata, elems.ht_info_elem,
+		changed |= ieee80211_enable_ht(sdata, elems.ht_operation,
 					       bssid, ap_ht_cap_flags, true);
 	}
 
@@ -3339,8 +3340,8 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
 	assoc_data->wmm = bss->wmm_used && (local->hw.queues >= 4);
 	assoc_data->supp_rates = bss->supp_rates;
 	assoc_data->supp_rates_len = bss->supp_rates_len;
-	assoc_data->ht_information_ie =
-		ieee80211_bss_get_ie(req->bss, WLAN_EID_HT_INFORMATION);
+	assoc_data->ht_operation_ie =
+		ieee80211_bss_get_ie(req->bss, WLAN_EID_HT_OPERATION);
 
 	if (bss->wmm_used && bss->uapsd_supported &&
 	    (sdata->local->hw.flags & IEEE80211_HW_SUPPORTS_UAPSD)) {