staging: rtl8723au: Don't carry ht_cap_info and ht_param in struct wlan_bcn_info

These were just stored to check whether the beacon info had changed
and print a debug message in this case. If we ever need this again, we
can determine this change differently.
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8723au/core/rtw_ieee80211.c

@@ -859,9 +859,6 @@ void rtw_get_bcn_info23a(struct wlan_network *pnetwork)
 	u8 bencrypt = 0;
 	/* u8 wpa_ie[255], rsn_ie[255]; */
 	u16 wpa_len = 0, rsn_len = 0;
-	struct ieee80211_ht_operation *pht_info;
-	struct ieee80211_ht_cap *pht_cap;
-	const u8 *p;
 
 	cap = get_unaligned_le16(
 		rtw_get_capability23a_from_ie(pnetwork->network.IEs));
@@ -901,25 +898,6 @@ void rtw_get_bcn_info23a(struct wlan_network *pnetwork)
 	rtw_get_cipher_info(pnetwork);
 
 	/* get bwmode and ch_offset */
-	/* parsing HT_CAP_IE */
-	p = cfg80211_find_ie(WLAN_EID_HT_CAPABILITY,
-			     pnetwork->network.IEs + _FIXED_IE_LENGTH_,
-			     pnetwork->network.IELength - _FIXED_IE_LENGTH_);
-	if (p && p[1] > 0) {
-		pht_cap = (struct ieee80211_ht_cap *)(p + 2);
-		pnetwork->BcnInfo.ht_cap_info = pht_cap->cap_info;
-	} else
-		pnetwork->BcnInfo.ht_cap_info = 0;
-
-	/* parsing HT_INFO_IE */
-	p = cfg80211_find_ie(WLAN_EID_HT_OPERATION,
-			     pnetwork->network.IEs + _FIXED_IE_LENGTH_,
-		       pnetwork->network.IELength - _FIXED_IE_LENGTH_);
-	if (p && p[1] > 0) {
-		pht_info = (struct ieee80211_ht_operation *)(p + 2);
-		pnetwork->BcnInfo.ht_info_infos_0 = pht_info->ht_param;
-	} else
-		pnetwork->BcnInfo.ht_info_infos_0 = 0;
 }
 
 /* show MCS rate, unit: 100Kbps */

drivers/staging/rtl8723au/core/rtw_wlan_util.c

@@ -885,15 +885,12 @@ int rtw_check_bcn_info23a(struct rtw_adapter *Adapter,
 {
 	struct wlan_network *cur_network = &Adapter->mlmepriv.cur_network;
 	struct ieee80211_ht_operation *pht_info;
-	struct ieee80211_ht_cap *pht_cap;
 	struct wlan_bssid_ex *bssid;
 	unsigned short val16;
 	u16 wpa_len = 0, rsn_len = 0;
 	u8 encryp_protocol;
 	int group_cipher = 0, pairwise_cipher = 0, is_8021x = 0, r;
 	u32 bcn_channel;
-	unsigned short ht_cap_info;
-	unsigned char ht_info_infos_0;
 	int len, pie_len, ie_offset;
 	const u8 *p;
 	u8 *pie;
@@ -941,41 +938,6 @@ int rtw_check_bcn_info23a(struct rtw_adapter *Adapter,
 	pie = bssid->IEs + ie_offset;
 	pie_len = pkt_len - ie_offset;
 
-	p = cfg80211_find_ie(WLAN_EID_HT_CAPABILITY, pie, pie_len);
-	if (p && p[1] > 0) {
-		pht_cap = (struct ieee80211_ht_cap *)(p + 2);
-		ht_cap_info = pht_cap->cap_info;
-	} else {
-		pht_cap = NULL;
-		ht_cap_info = 0;
-	}
-
-	/* parsing HT_INFO_IE */
-	p = cfg80211_find_ie(WLAN_EID_HT_OPERATION, pie, pie_len);
-	if (p && p[1] > 0) {
-		pht_info = (struct ieee80211_ht_operation *)(p + 2);
-		ht_info_infos_0 = pht_info->ht_param;
-	} else {
-		pht_info = NULL;
-		ht_info_infos_0 = 0;
-	}
-
-	if (ht_cap_info != cur_network->BcnInfo.ht_cap_info ||
-	    ((ht_info_infos_0 & 0x03) !=
-	     (cur_network->BcnInfo.ht_info_infos_0 & 0x03))) {
-		DBG_8723A("%s bcn now: ht_cap_info:%x ht_info_infos_0:%x\n",
-			  __func__, ht_cap_info, ht_info_infos_0);
-		DBG_8723A("%s bcn link: ht_cap_info:%x ht_info_infos_0:%x\n",
-			  __func__, cur_network->BcnInfo.ht_cap_info,
-			  cur_network->BcnInfo.ht_info_infos_0);
-		DBG_8723A("%s bw mode change, disconnect\n", __func__);
-		/* bcn_info_update */
-		cur_network->BcnInfo.ht_cap_info = ht_cap_info;
-		cur_network->BcnInfo.ht_info_infos_0 = ht_info_infos_0;
-		/* to do : need to check that whether modify related
-		   register of BB or not */
-	}
-
 	/* Checking for channel */
 	p = cfg80211_find_ie(WLAN_EID_DS_PARAMS, pie, pie_len);
 	if (p)
@@ -985,9 +947,10 @@ int rtw_check_bcn_info23a(struct rtw_adapter *Adapter,
 		   info for channel */
 		p = cfg80211_find_ie(WLAN_EID_HT_OPERATION, pie, pie_len);
 
-		if (pht_info)
+		if (p && p[1] > 0) {
+			pht_info = (struct ieee80211_ht_operation *)(p + 2);
 			bcn_channel = pht_info->primary_chan;
-		else { /* we don't find channel IE, so don't check it */
+		} else { /* we don't find channel IE, so don't check it */
 			DBG_8723A("Oops: %s we don't find channel IE, so don't "
 				  "check it\n", __func__);
 			bcn_channel = Adapter->mlmeextpriv.cur_channel;

drivers/staging/rtl8723au/include/wlan_bssdef.h

@@ -83,8 +83,6 @@ struct wlan_bcn_info {
 	int is_8021x;
 
 	/* bwmode 20/40 and ch_offset UP/LOW */
-	unsigned short	ht_cap_info;
-	unsigned char	ht_info_infos_0;
 };
 
 struct wlan_bssid_ex {