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staging: rtl8723au: Do not xmit BSS Coexistence management action frames

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The driver should not be issuing BSS Coexistence management action
frames when scanning. This isn't required by the spec, and if needed,
these should come from wpa_s instead.

Recommended by Johannes Berg.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jes Sorensen
2014-06-09 15:16:16 +02:00
committed by Greg Kroah-Hartman
parent 85d5120d52
commit 372713a942
1 changed files with 0 additions and 138 deletions
Download Patch File Download Diff File Expand all files Collapse all files

138
drivers/staging/rtl8723au/core/rtw_mlme_ext.c
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@@ -4174,140 +4174,6 @@ void issue_action_BA23a(struct rtw_adapter *padapter,
dump_mgntframe23a(padapter, pmgntframe);
}
static void issue_action_BSSCoexistPacket(struct rtw_adapter *padapter)
{
struct list_head *plist, *phead, *ptmp;
struct xmit_frame *pmgntframe;
struct pkt_attrib *pattrib;
u8 *pframe;
struct ieee80211_mgmt *mgmt;
struct wlan_network *pnetwork;
struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
struct rtw_queue *queue = &pmlmepriv->scanned_queue;
u8 InfoContent[16] = {0};
u8 ICS[8][15];
int i;
if (pmlmepriv->num_FortyMHzIntolerant == 0 ||
pmlmepriv->num_sta_no_ht == 0)
return;
if (pmlmeinfo->bwmode_updated)
return;
DBG_8723A("%s\n", __func__);
pmgntframe = alloc_mgtxmitframe23a(pxmitpriv);
if (!pmgntframe)
return;
/* update attribute */
pattrib = &pmgntframe->attrib;
update_mgntframe_attrib23a(padapter, pattrib);
memset(pmgntframe->buf_addr, 0, WLANHDR_OFFSET + TXDESC_OFFSET);
pframe = (u8 *)pmgntframe->buf_addr + TXDESC_OFFSET;
mgmt = (struct ieee80211_mgmt *)pframe;
mgmt->frame_control =
cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION);
ether_addr_copy(mgmt->da, get_my_bssid23a(&pmlmeinfo->network));
ether_addr_copy(mgmt->sa, myid(&padapter->eeprompriv));
ether_addr_copy(mgmt->bssid, get_my_bssid23a(&pmlmeinfo->network));
mgmt->seq_ctrl = cpu_to_le16(IEEE80211_SN_TO_SEQ(pmlmeext->mgnt_seq));
pmlmeext->mgnt_seq++;
mgmt->u.action.category = WLAN_CATEGORY_PUBLIC;
/*
* This is cheating, but as there is currently no coexist_action
* defined in struct struct ieee80211_mgmt, abuse chan_switch
* for now, since it matches.
*/
mgmt->u.action.u.chan_switch.action_code = ACT_PUBLIC_BSSCOEXIST;
pframe = mgmt->u.action.u.chan_switch.variable;
pattrib->pktlen = offsetof(struct ieee80211_mgmt,
u.action.u.chan_switch.variable);
if (pmlmepriv->num_FortyMHzIntolerant > 0) {
u8 iedata = BIT(2);/* 20 MHz BSS Width Request */
pframe = rtw_set_ie23a(pframe, WLAN_EID_BSS_COEX_2040, 1,
&iedata, &pattrib->pktlen);
}
if (pmlmepriv->num_sta_no_ht <= 0)
goto out;
memset(ICS, 0, sizeof(ICS));
spin_lock_bh(&pmlmepriv->scanned_queue.lock);
phead = get_list_head(queue);
plist = phead->next;
list_for_each_safe(plist, ptmp, phead) {
const u8 *p;
struct wlan_bssid_ex *pbss_network;
pnetwork = container_of(plist, struct wlan_network, list);
pbss_network = &pnetwork->network;
p = cfg80211_find_ie(WLAN_EID_HT_CAPABILITY,
pbss_network->IEs + _FIXED_IE_LENGTH_,
pbss_network->IELength -_FIXED_IE_LENGTH_);
if (!p || !p[1]) { /* non-HT */
if (pbss_network->DSConfig <= 0 ||
pbss_network->DSConfig > 14)
continue;
ICS[0][pbss_network->DSConfig] = 1;
if (ICS[0][0] == 0)
ICS[0][0] = 1;
}
}
spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
for (i = 0; i < 8;i++) {
if (ICS[i][0] == 1) {
int j, k = 0;
InfoContent[k] = i;
/* SET_BSS_INTOLERANT_ELE_REG_CLASS(InfoContent, i); */
k++;
for (j = 1; j <= 14; j++) {
if (ICS[i][j] == 1) {
if (k < 16) {
/* channel number */
InfoContent[k] = j;
k++;
}
}
}
pframe = rtw_set_ie23a(pframe,
EID_BSSIntolerantChlReport, k,
InfoContent, &pattrib->pktlen);
}
}
out:
pattrib->last_txcmdsz = pattrib->pktlen;
dump_mgntframe23a(padapter, pmgntframe);
}
int send_delba23a(struct rtw_adapter *padapter, u8 initiator, u8 *addr)
{
struct sta_priv *pstapriv = &padapter->stapriv;
@@ -4485,10 +4351,6 @@ static void rtw_site_survey(struct rtw_adapter *padapter)
pmlmeext->chan_scan_time = SURVEY_TO;
pmlmeext->sitesurvey_res.state = SCAN_DISABLE;
issue_action_BSSCoexistPacket(padapter);
issue_action_BSSCoexistPacket(padapter);
issue_action_BSSCoexistPacket(padapter);
}
return;