qcacld-3.0: Remove obsolete STA support for SIOCSIWMODE

At one time the predecessor to the current driver was managed via
wireless extensions, but now the driver is managed by cfg80211. The
STA implementation of SIOCSIWMODE should no longer be used, so remove
it.

Change-Id: I30953a7a6ca8df3cf88e3b5876f3ce1708f42dbc
CRs-Fixed: 2128996

core/hdd/src/wlan_hdd_wext.c

@@ -4620,123 +4620,6 @@ static int iw_get_name(struct net_device *dev,
 	return ret;
 }
 
-/**
- * __iw_set_mode() - ioctl handler
- * @dev: device upon which the ioctl was received
- * @info: ioctl request information
- * @wrqu: ioctl request data
- * @extra: ioctl extra data
- *
- * Return: 0 on success, non-zero on error
- */
-static int __iw_set_mode(struct net_device *dev,
-			 struct iw_request_info *info,
-			 union iwreq_data *wrqu, char *extra)
-{
-	struct hdd_wext_state *pWextState;
-	struct hdd_adapter *adapter = WLAN_HDD_GET_PRIV_PTR(dev);
-	struct hdd_context *hdd_ctx;
-	tCsrRoamProfile *pRoamProfile;
-	eCsrRoamBssType LastBSSType;
-	struct hdd_config *pConfig;
-	struct wireless_dev *wdev;
-	int ret;
-
-	ENTER_DEV(dev);
-
-	hdd_ctx = WLAN_HDD_GET_CTX(adapter);
-	ret = wlan_hdd_validate_context(hdd_ctx);
-	if (0 != ret)
-		return ret;
-
-	ret = hdd_check_standard_wext_control(hdd_ctx, info);
-	if (0 != ret)
-		return ret;
-
-	pWextState = WLAN_HDD_GET_WEXT_STATE_PTR(adapter);
-	wdev = dev->ieee80211_ptr;
-	pRoamProfile = &pWextState->roamProfile;
-	LastBSSType = pRoamProfile->BSSType;
-
-	hdd_debug("Old Bss type = %d", LastBSSType);
-
-	switch (wrqu->mode) {
-	case IW_MODE_ADHOC:
-		hdd_debug("Setting AP Mode as IW_MODE_ADHOC");
-		pRoamProfile->BSSType = eCSR_BSS_TYPE_START_IBSS;
-		/* Set the phymode correctly for IBSS. */
-		pConfig = (WLAN_HDD_GET_CTX(adapter))->config;
-		pWextState->roamProfile.phyMode =
-			hdd_cfg_xlate_to_csr_phy_mode(pConfig->dot11Mode);
-		adapter->device_mode = QDF_IBSS_MODE;
-		wdev->iftype = NL80211_IFTYPE_ADHOC;
-		break;
-	case IW_MODE_INFRA:
-		hdd_debug("Setting AP Mode as IW_MODE_INFRA");
-		pRoamProfile->BSSType = eCSR_BSS_TYPE_INFRASTRUCTURE;
-		wdev->iftype = NL80211_IFTYPE_STATION;
-		break;
-	case IW_MODE_AUTO:
-		hdd_debug("Setting AP Mode as IW_MODE_AUTO");
-		pRoamProfile->BSSType = eCSR_BSS_TYPE_ANY;
-		break;
-	default:
-		hdd_err("Unknown AP Mode value %d", wrqu->mode);
-		return -EOPNOTSUPP;
-	}
-
-	if (LastBSSType != pRoamProfile->BSSType) {
-		/* the BSS mode changed.  We need to issue disconnect
-		 * if connected or in IBSS disconnect state
-		 */
-		if (hdd_conn_is_connected
-			    (WLAN_HDD_GET_STATION_CTX_PTR(adapter))
-		    || (eCSR_BSS_TYPE_START_IBSS == LastBSSType)) {
-			QDF_STATUS qdf_status;
-			/* need to issue a disconnect to CSR. */
-			INIT_COMPLETION(adapter->disconnect_comp_var);
-			qdf_status =
-				sme_roam_disconnect(WLAN_HDD_GET_HAL_CTX(adapter),
-						    adapter->sessionId,
-						    eCSR_DISCONNECT_REASON_IBSS_LEAVE);
-			if (QDF_STATUS_SUCCESS == qdf_status) {
-				unsigned long rc;
-
-				rc = wait_for_completion_timeout(&adapter->
-								 disconnect_comp_var,
-								 msecs_to_jiffies
-									 (WLAN_WAIT_TIME_DISCONNECT));
-				if (!rc)
-					hdd_err("disconnect_comp_var failed");
-			}
-		}
-	}
-
-	EXIT();
-	return 0;
-}
-
-/**
- * iw_set_mode() - SSR wrapper for __iw_set_mode()
- * @dev: pointer to net_device
- * @info: pointer to iw_request_info
- * @wrqu: pointer to iwreq_data
- * @extra: pointer to extra ioctl payload
- *
- * Return: 0 on success, error number otherwise
- */
-static int iw_set_mode(struct net_device *dev, struct iw_request_info *info,
-		       union iwreq_data *wrqu, char *extra)
-{
-	int ret;
-
-	cds_ssr_protect(__func__);
-	ret = __iw_set_mode(dev, info, wrqu, extra);
-	cds_ssr_unprotect(__func__);
-
-	return ret;
-}
-
 /**
  * __iw_set_freq() - SIOCSIWFREQ ioctl handler
  * @dev: device upon which the ioctl was received
@@ -11144,7 +11027,7 @@ static const iw_handler we_handler[] = {
 	(iw_handler) NULL,      /* SIOCGIWNWID */
 	(iw_handler) iw_set_freq,       /* SIOCSIWFREQ */
 	(iw_handler) iw_get_freq,       /* SIOCGIWFREQ */
-	(iw_handler) iw_set_mode,       /* SIOCSIWMODE */
+	(iw_handler) NULL,      /* SIOCSIWMODE */
 	(iw_handler) NULL,      /* SIOCGIWMODE */
 	(iw_handler) NULL,      /* SIOCSIWSENS */
 	(iw_handler) NULL,      /* SIOCGIWSENS */