qcacld-3.0: Remove obsolete support for SIOCGIWRTS

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

Change-Id: I517481792e3fb211454b5383288c5cfd92131b2a
CRs-Fixed: 2128984

core/hdd/inc/wlan_hdd_wext.h

@@ -276,10 +276,6 @@ extern void hdd_wlan_get_stats(struct hdd_adapter *adapter, uint16_t *length,
 extern void hdd_wlan_list_fw_profile(uint16_t *length,
 			       char *buffer, uint16_t buf_len);
 
-int iw_get_rts_threshold(struct net_device *dev,
-			 struct iw_request_info *info,
-			 union iwreq_data *wrqu, char *extra);
-
 extern int iw_set_essid(struct net_device *dev,
 			struct iw_request_info *info,
 			union iwreq_data *wrqu, char *extra);

core/hdd/src/wlan_hdd_hostapd.c

@@ -5510,7 +5510,7 @@ static const iw_handler hostapd_handler[] = {
 	(iw_handler) NULL,      /* SIOCSIWRATE */
 	(iw_handler) NULL,      /* SIOCGIWRATE */
 	(iw_handler) NULL,      /* SIOCSIWRTS */
-	(iw_handler) iw_get_rts_threshold,           /* SIOCGIWRTS */
+	(iw_handler) NULL,      /* SIOCGIWRTS */
 	(iw_handler) NULL,      /* SIOCSIWFRAG */
 	(iw_handler) NULL,      /* SIOCGIWFRAG */
 	(iw_handler) NULL,      /* SIOCSIWTXPOW */

core/hdd/src/wlan_hdd_wext.c

@@ -5219,50 +5219,6 @@ static int iw_set_bitrate(struct net_device *dev,
 	return ret;
 }
 
-/**
- * __iw_get_rts_threshold() - SIOCGIWRTS 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_get_rts_threshold(struct net_device *dev,
-				  struct iw_request_info *info,
-				  union iwreq_data *wrqu, char *extra)
-{
-	struct hdd_adapter *adapter = WLAN_HDD_GET_PRIV_PTR(dev);
-	tHalHandle hal = WLAN_HDD_GET_HAL_CTX(adapter);
-	uint32_t threshold = 0;
-	struct hdd_context *hdd_ctx;
-	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;
-
-	if (QDF_STATUS_SUCCESS !=
-	    sme_cfg_get_int(hal, WNI_CFG_RTS_THRESHOLD, &threshold)) {
-		hdd_warn("failed to get ini parameter, WNI_CFG_RTS_THRESHOLD");
-		return -EIO;
-	}
-	wrqu->rts.value = threshold;
-
-	hdd_notice("Rts-Threshold=%d!!", wrqu->rts.value);
-
-	EXIT();
-
-	return 0;
-}
-
 /**
  * __iw_set_rts_threshold() - SIOCSIWRTS ioctl handler
  * @dev: device upon which the ioctl was received
@@ -5308,28 +5264,6 @@ static int __iw_set_rts_threshold(struct net_device *dev,
 	return 0;
 }
 
-/**
- * iw_get_rts_threshold() - SSR wrapper for __iw_get_rts_threshold()
- * @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
- */
-int iw_get_rts_threshold(struct net_device *dev,
-			 struct iw_request_info *info,
-			 union iwreq_data *wrqu, char *extra)
-{
-	int ret;
-
-	cds_ssr_protect(__func__);
-	ret = __iw_get_rts_threshold(dev, info, wrqu, extra);
-	cds_ssr_unprotect(__func__);
-
-	return ret;
-}
-
 /**
  * iw_set_rts_threshold() - SSR wrapper for __iw_set_rts_threshold()
  * @dev: pointer to net_device
@@ -11794,7 +11728,7 @@ static const iw_handler we_handler[] = {
 	(iw_handler) iw_set_bitrate,    /* SIOCSIWRATE */
 	(iw_handler) iw_get_bitrate,    /* SIOCGIWRATE */
 	(iw_handler) iw_set_rts_threshold,      /* SIOCSIWRTS */
-	(iw_handler) iw_get_rts_threshold,      /* SIOCGIWRTS */
+	(iw_handler) NULL,      /* SIOCGIWRTS */
 	(iw_handler) NULL,      /* SIOCSIWFRAG */
 	(iw_handler) NULL,      /* SIOCGIWFRAG */
 	(iw_handler) NULL,      /* SIOCSIWTXPOW */