cfg80211: move enum reg_set_by to nl80211.h

We do this so we can later inform userspace who set the
regulatory domain and provide details of the request.
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath9k/main.c

@@ -1670,7 +1670,7 @@ int ath_attach(u16 devid, struct ath_softc *sc)
 	}
 	wiphy_apply_custom_regulatory(hw->wiphy, regd);
 	ath9k_reg_apply_radar_flags(hw->wiphy);
-	ath9k_reg_apply_world_flags(hw->wiphy, REGDOM_SET_BY_DRIVER);
+	ath9k_reg_apply_world_flags(hw->wiphy, NL80211_REGDOM_SET_BY_DRIVER);
 
 	INIT_WORK(&sc->chan_work, ath9k_wiphy_chan_work);
 	INIT_DELAYED_WORK(&sc->wiphy_work, ath9k_wiphy_work);

drivers/net/wireless/ath9k/regd.c

@@ -168,8 +168,9 @@ static bool ath9k_is_radar_freq(u16 center_freq)
  *   received a beacon on a channel we can enable active scan and
  *   adhoc (or beaconing).
  */
-static void ath9k_reg_apply_beaconing_flags(struct wiphy *wiphy,
-					     enum reg_set_by setby)
+static void ath9k_reg_apply_beaconing_flags(
+	struct wiphy *wiphy,
+	enum nl80211_reg_initiator initiator)
 {
 	enum ieee80211_band band;
 	struct ieee80211_supported_band *sband;
@@ -194,7 +195,7 @@ static void ath9k_reg_apply_beaconing_flags(struct wiphy *wiphy,
 			    (ch->flags & IEEE80211_CHAN_RADAR))
 				continue;
 
-			if (setby == REGDOM_SET_BY_COUNTRY_IE) {
+			if (initiator == NL80211_REGDOM_SET_BY_COUNTRY_IE) {
 				r = freq_reg_info(wiphy, ch->center_freq,
 					&bandwidth, &reg_rule);
 				if (r)
@@ -226,8 +227,9 @@ static void ath9k_reg_apply_beaconing_flags(struct wiphy *wiphy,
 }
 
 /* Allows active scan scan on Ch 12 and 13 */
-static void ath9k_reg_apply_active_scan_flags(struct wiphy *wiphy,
-					      enum reg_set_by setby)
+static void ath9k_reg_apply_active_scan_flags(
+	struct wiphy *wiphy,
+	enum nl80211_reg_initiator initiator)
 {
 	struct ieee80211_supported_band *sband;
 	struct ieee80211_channel *ch;
@@ -241,7 +243,7 @@ static void ath9k_reg_apply_active_scan_flags(struct wiphy *wiphy,
 	 * If no country IE has been received always enable active scan
 	 * on these channels. This is only done for specific regulatory SKUs
 	 */
-	if (setby != REGDOM_SET_BY_COUNTRY_IE) {
+	if (initiator != NL80211_REGDOM_SET_BY_COUNTRY_IE) {
 		ch = &sband->channels[11]; /* CH 12 */
 		if (ch->flags & IEEE80211_CHAN_PASSIVE_SCAN)
 			ch->flags &= ~IEEE80211_CHAN_PASSIVE_SCAN;
@@ -308,7 +310,8 @@ void ath9k_reg_apply_radar_flags(struct wiphy *wiphy)
 	}
 }
 
-void ath9k_reg_apply_world_flags(struct wiphy *wiphy, enum reg_set_by setby)
+void ath9k_reg_apply_world_flags(struct wiphy *wiphy,
+				 enum nl80211_reg_initiator initiator)
 {
 	struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
 	struct ath_wiphy *aphy = hw->priv;
@@ -320,11 +323,11 @@ void ath9k_reg_apply_world_flags(struct wiphy *wiphy, enum reg_set_by setby)
 	case 0x63:
 	case 0x66:
 	case 0x67:
-		ath9k_reg_apply_beaconing_flags(wiphy, setby);
+		ath9k_reg_apply_beaconing_flags(wiphy, initiator);
 		break;
 	case 0x68:
-		ath9k_reg_apply_beaconing_flags(wiphy, setby);
-		ath9k_reg_apply_active_scan_flags(wiphy, setby);
+		ath9k_reg_apply_beaconing_flags(wiphy, initiator);
+		ath9k_reg_apply_active_scan_flags(wiphy, initiator);
 		break;
 	}
 	return;
@@ -340,11 +343,11 @@ int ath9k_reg_notifier(struct wiphy *wiphy, struct regulatory_request *request)
 	ath9k_reg_apply_radar_flags(wiphy);
 
 	switch (request->initiator) {
-	case REGDOM_SET_BY_DRIVER:
-	case REGDOM_SET_BY_CORE:
-	case REGDOM_SET_BY_USER:
+	case NL80211_REGDOM_SET_BY_DRIVER:
+	case NL80211_REGDOM_SET_BY_CORE:
+	case NL80211_REGDOM_SET_BY_USER:
 		break;
-	case REGDOM_SET_BY_COUNTRY_IE:
+	case NL80211_REGDOM_SET_BY_COUNTRY_IE:
 		if (ath9k_is_world_regd(sc->sc_ah))
 			ath9k_reg_apply_world_flags(wiphy, request->initiator);
 		break;

drivers/net/wireless/ath9k/regd.h

@@ -236,7 +236,8 @@ enum CountryCode {
 bool ath9k_is_world_regd(struct ath_hw *ah);
 const struct ieee80211_regdomain *ath9k_world_regdomain(struct ath_hw *ah);
 const struct ieee80211_regdomain *ath9k_default_world_regdomain(void);
-void ath9k_reg_apply_world_flags(struct wiphy *wiphy, enum reg_set_by setby);
+void ath9k_reg_apply_world_flags(struct wiphy *wiphy,
+				 enum nl80211_reg_initiator initiator);
 void ath9k_reg_apply_radar_flags(struct wiphy *wiphy);
 int ath9k_regd_init(struct ath_hw *ah);
 bool ath9k_regd_is_eeprom_valid(struct ath_hw *ah);

include/linux/nl80211.h

@@ -672,6 +672,25 @@ enum nl80211_bitrate_attr {
 	NL80211_BITRATE_ATTR_MAX = __NL80211_BITRATE_ATTR_AFTER_LAST - 1
 };
 
+/**
+ * enum nl80211_initiator - Indicates the initiator of a reg domain request
+ * @NL80211_REGDOM_SET_BY_CORE: Core queried CRDA for a dynamic world
+ * 	regulatory domain.
+ * @NL80211_REGDOM_SET_BY_USER: User asked the wireless core to set the
+ * 	regulatory domain.
+ * @NL80211_REGDOM_SET_BY_DRIVER: a wireless drivers has hinted to the
+ * 	wireless core it thinks its knows the regulatory domain we should be in.
+ * @NL80211_REGDOM_SET_BY_COUNTRY_IE: the wireless core has received an
+ * 	802.11 country information element with regulatory information it
+ * 	thinks we should consider.
+ */
+enum nl80211_reg_initiator {
+	NL80211_REGDOM_SET_BY_CORE,
+	NL80211_REGDOM_SET_BY_USER,
+	NL80211_REGDOM_SET_BY_DRIVER,
+	NL80211_REGDOM_SET_BY_COUNTRY_IE,
+};
+
 /**
  * enum nl80211_reg_rule_attr - regulatory rule attributes
  * @NL80211_ATTR_REG_RULE_FLAGS: a set of flags which specify additional

include/net/cfg80211.h

@@ -348,28 +348,10 @@ struct bss_parameters {
 	u8 basic_rates_len;
 };
 
-/**
- * enum reg_set_by - Indicates who is trying to set the regulatory domain
- * @REGDOM_SET_BY_CORE: Core queried CRDA for a dynamic world regulatory domain.
- * @REGDOM_SET_BY_USER: User asked the wireless core to set the
- * 	regulatory domain.
- * @REGDOM_SET_BY_DRIVER: a wireless drivers has hinted to the wireless core
- *	it thinks its knows the regulatory domain we should be in.
- * @REGDOM_SET_BY_COUNTRY_IE: the wireless core has received an 802.11 country
- *	information element with regulatory information it thinks we
- *	should consider.
- */
-enum reg_set_by {
-	REGDOM_SET_BY_CORE,
-	REGDOM_SET_BY_USER,
-	REGDOM_SET_BY_DRIVER,
-	REGDOM_SET_BY_COUNTRY_IE,
-};
-
 /**
  * enum environment_cap - Environment parsed from country IE
  * @ENVIRON_ANY: indicates country IE applies to both indoor and
- * 	outdoor operation.
+ *	outdoor operation.
  * @ENVIRON_INDOOR: indicates country IE applies only to indoor operation
  * @ENVIRON_OUTDOOR: indicates country IE applies only to outdoor operation
  */
@@ -388,7 +370,7 @@ enum environment_cap {
  * 	and potentially inform users of which devices specifically
  * 	cased the conflicts.
  * @initiator: indicates who sent this request, could be any of
- * 	of those set in reg_set_by, %REGDOM_SET_BY_*
+ * 	of those set in nl80211_reg_initiator (%NL80211_REGDOM_SET_BY_*)
  * @alpha2: the ISO / IEC 3166 alpha2 country code of the requested
  * 	regulatory domain. We have a few special codes:
  * 	00 - World regulatory domain
@@ -405,7 +387,7 @@ enum environment_cap {
  */
 struct regulatory_request {
 	int wiphy_idx;
-	enum reg_set_by initiator;
+	enum nl80211_reg_initiator initiator;
 	char alpha2[2];
 	bool intersect;
 	u32 country_ie_checksum;

net/wireless/core.c

@@ -350,7 +350,7 @@ int wiphy_register(struct wiphy *wiphy)
 	mutex_lock(&cfg80211_mutex);
 
 	/* set up regulatory info */
-	wiphy_update_regulatory(wiphy, REGDOM_SET_BY_CORE);
+	wiphy_update_regulatory(wiphy, NL80211_REGDOM_SET_BY_CORE);
 
 	res = device_add(&drv->wiphy.dev);
 	if (res)

net/wireless/core.h

@@ -136,7 +136,8 @@ extern int cfg80211_dev_rename(struct cfg80211_registered_device *drv,
 			       char *newname);
 
 void ieee80211_set_bitrate_flags(struct wiphy *wiphy);
-void wiphy_update_regulatory(struct wiphy *wiphy, enum reg_set_by setby);
+void wiphy_update_regulatory(struct wiphy *wiphy,
+			     enum nl80211_reg_initiator setby);
 
 void cfg80211_bss_expire(struct cfg80211_registered_device *dev);
 void cfg80211_bss_age(struct cfg80211_registered_device *dev,

net/wireless/reg.c

@@ -857,8 +857,8 @@ static int freq_reg_info_regd(struct wiphy *wiphy,
 	 * Follow the driver's regulatory domain, if present, unless a country
 	 * IE has been processed or a user wants to help complaince further
 	 */
-	if (last_request->initiator != REGDOM_SET_BY_COUNTRY_IE &&
-	    last_request->initiator != REGDOM_SET_BY_USER &&
+	if (last_request->initiator != NL80211_REGDOM_SET_BY_COUNTRY_IE &&
+	    last_request->initiator != NL80211_REGDOM_SET_BY_USER &&
 	    wiphy->regd)
 		regd = wiphy->regd;
 
@@ -943,7 +943,8 @@ static void handle_channel(struct wiphy *wiphy, enum ieee80211_band band,
 		 * http://tinyurl.com/11d-clarification
 		 */
 		if (r == -ERANGE &&
-		    last_request->initiator == REGDOM_SET_BY_COUNTRY_IE) {
+		    last_request->initiator ==
+		    NL80211_REGDOM_SET_BY_COUNTRY_IE) {
 #ifdef CONFIG_CFG80211_REG_DEBUG
 			printk(KERN_DEBUG "cfg80211: Leaving channel %d MHz "
 				"intact on %s - no rule found in band on "
@@ -956,7 +957,8 @@ static void handle_channel(struct wiphy *wiphy, enum ieee80211_band band,
 		 * for the band so we respect its band definitions
 		 */
 #ifdef CONFIG_CFG80211_REG_DEBUG
-			if (last_request->initiator == REGDOM_SET_BY_COUNTRY_IE)
+			if (last_request->initiator ==
+			    NL80211_REGDOM_SET_BY_COUNTRY_IE)
 				printk(KERN_DEBUG "cfg80211: Disabling "
 					"channel %d MHz on %s due to "
 					"Country IE\n",
@@ -970,7 +972,7 @@ static void handle_channel(struct wiphy *wiphy, enum ieee80211_band band,
 
 	power_rule = &reg_rule->power_rule;
 
-	if (last_request->initiator == REGDOM_SET_BY_DRIVER &&
+	if (last_request->initiator == NL80211_REGDOM_SET_BY_DRIVER &&
 	    request_wiphy && request_wiphy == wiphy &&
 	    request_wiphy->strict_regulatory) {
 		/*
@@ -1011,11 +1013,12 @@ static void handle_band(struct wiphy *wiphy, enum ieee80211_band band)
 		handle_channel(wiphy, band, i);
 }
 
-static bool ignore_reg_update(struct wiphy *wiphy, enum reg_set_by setby)
+static bool ignore_reg_update(struct wiphy *wiphy,
+			      enum nl80211_reg_initiator initiator)
 {
 	if (!last_request)
 		return true;
-	if (setby == REGDOM_SET_BY_CORE &&
+	if (initiator == NL80211_REGDOM_SET_BY_CORE &&
 		  wiphy->custom_regulatory)
 		return true;
 	/*
@@ -1028,12 +1031,12 @@ static bool ignore_reg_update(struct wiphy *wiphy, enum reg_set_by setby)
 	return false;
 }
 
-static void update_all_wiphy_regulatory(enum reg_set_by setby)
+static void update_all_wiphy_regulatory(enum nl80211_reg_initiator initiator)
 {
 	struct cfg80211_registered_device *drv;
 
 	list_for_each_entry(drv, &cfg80211_drv_list, list)
-		wiphy_update_regulatory(&drv->wiphy, setby);
+		wiphy_update_regulatory(&drv->wiphy, initiator);
 }
 
 static void handle_reg_beacon(struct wiphy *wiphy,
@@ -1124,7 +1127,7 @@ static bool reg_is_world_roaming(struct wiphy *wiphy)
 	if (is_world_regdom(cfg80211_regdomain->alpha2) ||
 	    (wiphy->regd && is_world_regdom(wiphy->regd->alpha2)))
 		return true;
-	if (last_request->initiator != REGDOM_SET_BY_COUNTRY_IE &&
+	if (last_request->initiator != NL80211_REGDOM_SET_BY_COUNTRY_IE &&
 	    wiphy->custom_regulatory)
 		return true;
 	return false;
@@ -1138,11 +1141,12 @@ static void reg_process_beacons(struct wiphy *wiphy)
 	wiphy_update_beacon_reg(wiphy);
 }
 
-void wiphy_update_regulatory(struct wiphy *wiphy, enum reg_set_by setby)
+void wiphy_update_regulatory(struct wiphy *wiphy,
+			     enum nl80211_reg_initiator initiator)
 {
 	enum ieee80211_band band;
 
-	if (ignore_reg_update(wiphy, setby))
+	if (ignore_reg_update(wiphy, initiator))
 		goto out;
 	for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
 		if (wiphy->bands[band])
@@ -1255,15 +1259,16 @@ static int ignore_request(struct wiphy *wiphy,
 		return 0;
 
 	switch (pending_request->initiator) {
-	case REGDOM_SET_BY_CORE:
+	case NL80211_REGDOM_SET_BY_CORE:
 		return -EINVAL;
-	case REGDOM_SET_BY_COUNTRY_IE:
+	case NL80211_REGDOM_SET_BY_COUNTRY_IE:
 
 		last_wiphy = wiphy_idx_to_wiphy(last_request->wiphy_idx);
 
 		if (unlikely(!is_an_alpha2(pending_request->alpha2)))
 			return -EINVAL;
-		if (last_request->initiator == REGDOM_SET_BY_COUNTRY_IE) {
+		if (last_request->initiator ==
+		    NL80211_REGDOM_SET_BY_COUNTRY_IE) {
 			if (last_wiphy != wiphy) {
 				/*
 				 * Two cards with two APs claiming different
@@ -1284,8 +1289,8 @@ static int ignore_request(struct wiphy *wiphy,
 			return -EALREADY;
 		}
 		return REG_INTERSECT;
-	case REGDOM_SET_BY_DRIVER:
-		if (last_request->initiator == REGDOM_SET_BY_CORE) {
+	case NL80211_REGDOM_SET_BY_DRIVER:
+		if (last_request->initiator == NL80211_REGDOM_SET_BY_CORE) {
 			if (is_old_static_regdom(cfg80211_regdomain))
 				return 0;
 			if (regdom_changes(pending_request->alpha2))
@@ -1298,28 +1303,28 @@ static int ignore_request(struct wiphy *wiphy,
 		 * back in or if you add a new device for which the previously
 		 * loaded card also agrees on the regulatory domain.
 		 */
-		if (last_request->initiator == REGDOM_SET_BY_DRIVER &&
+		if (last_request->initiator == NL80211_REGDOM_SET_BY_DRIVER &&
 		    !regdom_changes(pending_request->alpha2))
 			return -EALREADY;
 
 		return REG_INTERSECT;
-	case REGDOM_SET_BY_USER:
-		if (last_request->initiator == REGDOM_SET_BY_COUNTRY_IE)
+	case NL80211_REGDOM_SET_BY_USER:
+		if (last_request->initiator == NL80211_REGDOM_SET_BY_COUNTRY_IE)
 			return REG_INTERSECT;
 		/*
 		 * If the user knows better the user should set the regdom
 		 * to their country before the IE is picked up
 		 */
-		if (last_request->initiator == REGDOM_SET_BY_USER &&
+		if (last_request->initiator == NL80211_REGDOM_SET_BY_USER &&
 			  last_request->intersect)
 			return -EOPNOTSUPP;
 		/*
 		 * Process user requests only after previous user/driver/core
 		 * requests have been processed
 		 */
-		if (last_request->initiator == REGDOM_SET_BY_CORE ||
-		    last_request->initiator == REGDOM_SET_BY_DRIVER ||
-		    last_request->initiator == REGDOM_SET_BY_USER) {
+		if (last_request->initiator == NL80211_REGDOM_SET_BY_CORE ||
+		    last_request->initiator == NL80211_REGDOM_SET_BY_DRIVER ||
+		    last_request->initiator == NL80211_REGDOM_SET_BY_USER) {
 			if (regdom_changes(last_request->alpha2))
 				return -EAGAIN;
 		}
@@ -1359,7 +1364,8 @@ static int __regulatory_hint(struct wiphy *wiphy,
 	r = ignore_request(wiphy, pending_request);
 
 	if (r == REG_INTERSECT) {
-		if (pending_request->initiator == REGDOM_SET_BY_DRIVER) {
+		if (pending_request->initiator ==
+		    NL80211_REGDOM_SET_BY_DRIVER) {
 			r = reg_copy_regd(&wiphy->regd, cfg80211_regdomain);
 			if (r) {
 				kfree(pending_request);
@@ -1374,7 +1380,8 @@ static int __regulatory_hint(struct wiphy *wiphy,
 		 * wiphy
 		 */
 		if (r == -EALREADY &&
-		    pending_request->initiator == REGDOM_SET_BY_DRIVER) {
+		    pending_request->initiator ==
+		    NL80211_REGDOM_SET_BY_DRIVER) {
 			r = reg_copy_regd(&wiphy->regd, cfg80211_regdomain);
 			if (r) {
 				kfree(pending_request);
@@ -1425,7 +1432,7 @@ static void reg_process_hint(struct regulatory_request *reg_request)
 	if (wiphy_idx_valid(reg_request->wiphy_idx))
 		wiphy = wiphy_idx_to_wiphy(reg_request->wiphy_idx);
 
-	if (reg_request->initiator == REGDOM_SET_BY_DRIVER &&
+	if (reg_request->initiator == NL80211_REGDOM_SET_BY_DRIVER &&
 	    !wiphy) {
 		kfree(reg_request);
 		goto out;
@@ -1439,7 +1446,7 @@ static void reg_process_hint(struct regulatory_request *reg_request)
 	mutex_unlock(&cfg80211_mutex);
 }
 
-/* Processes regulatory hints, this is all the REGDOM_SET_BY_* */
+/* Processes regulatory hints, this is all the NL80211_REGDOM_SET_BY_* */
 static void reg_process_pending_hints(void)
 	{
 	struct regulatory_request *reg_request;
@@ -1523,7 +1530,7 @@ static int regulatory_hint_core(const char *alpha2)
 
 	request->alpha2[0] = alpha2[0];
 	request->alpha2[1] = alpha2[1];
-	request->initiator = REGDOM_SET_BY_CORE;
+	request->initiator = NL80211_REGDOM_SET_BY_CORE;
 
 	queue_regulatory_request(request);
 
@@ -1544,7 +1551,7 @@ int regulatory_hint_user(const char *alpha2)
 	request->wiphy_idx = WIPHY_IDX_STALE;
 	request->alpha2[0] = alpha2[0];
 	request->alpha2[1] = alpha2[1];
-	request->initiator = REGDOM_SET_BY_USER,
+	request->initiator = NL80211_REGDOM_SET_BY_USER,
 
 	queue_regulatory_request(request);
 
@@ -1570,7 +1577,7 @@ int regulatory_hint(struct wiphy *wiphy, const char *alpha2)
 
 	request->alpha2[0] = alpha2[0];
 	request->alpha2[1] = alpha2[1];
-	request->initiator = REGDOM_SET_BY_DRIVER;
+	request->initiator = NL80211_REGDOM_SET_BY_DRIVER;
 
 	queue_regulatory_request(request);
 
@@ -1719,7 +1726,7 @@ void regulatory_hint_11d(struct wiphy *wiphy,
 	request->wiphy_idx = get_wiphy_idx(wiphy);
 	request->alpha2[0] = rd->alpha2[0];
 	request->alpha2[1] = rd->alpha2[1];
-	request->initiator = REGDOM_SET_BY_COUNTRY_IE;
+	request->initiator = NL80211_REGDOM_SET_BY_COUNTRY_IE;
 	request->country_ie_checksum = checksum;
 	request->country_ie_env = env;
 
@@ -1827,7 +1834,8 @@ static void print_regdomain(const struct ieee80211_regdomain *rd)
 
 	if (is_intersected_alpha2(rd->alpha2)) {
 
-		if (last_request->initiator == REGDOM_SET_BY_COUNTRY_IE) {
+		if (last_request->initiator ==
+		    NL80211_REGDOM_SET_BY_COUNTRY_IE) {
 			struct cfg80211_registered_device *drv;
 			drv = cfg80211_drv_by_wiphy_idx(
 				last_request->wiphy_idx);
@@ -1919,7 +1927,7 @@ static int __set_regdom(const struct ieee80211_regdomain *rd)
 	 * rd is non static (it means CRDA was present and was used last)
 	 * and the pending request came in from a country IE
 	 */
-	if (last_request->initiator != REGDOM_SET_BY_COUNTRY_IE) {
+	if (last_request->initiator != NL80211_REGDOM_SET_BY_COUNTRY_IE) {
 		/*
 		 * If someone else asked us to change the rd lets only bother
 		 * checking if the alpha2 changes if CRDA was already called
@@ -1951,7 +1959,7 @@ static int __set_regdom(const struct ieee80211_regdomain *rd)
 	if (!last_request->intersect) {
 		int r;
 
-		if (last_request->initiator != REGDOM_SET_BY_DRIVER) {
+		if (last_request->initiator != NL80211_REGDOM_SET_BY_DRIVER) {
 			reset_regdomains();
 			cfg80211_regdomain = rd;
 			return 0;
@@ -1975,7 +1983,7 @@ static int __set_regdom(const struct ieee80211_regdomain *rd)
 
 	/* Intersection requires a bit more work */
 
-	if (last_request->initiator != REGDOM_SET_BY_COUNTRY_IE) {
+	if (last_request->initiator != NL80211_REGDOM_SET_BY_COUNTRY_IE) {
 
 		intersected_rd = regdom_intersect(rd, cfg80211_regdomain);
 		if (!intersected_rd)
@@ -1986,7 +1994,7 @@ static int __set_regdom(const struct ieee80211_regdomain *rd)
 		 * However if a driver requested this specific regulatory
 		 * domain we keep it for its private use
 		 */
-		if (last_request->initiator == REGDOM_SET_BY_DRIVER)
+		if (last_request->initiator == NL80211_REGDOM_SET_BY_DRIVER)
 			request_wiphy->regd = rd;
 		else
 			kfree(rd);