1 files changed, 81 insertions, 33 deletions

diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 2b7ab01b2616..1bd590c2ed7f 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -1337,6 +1337,7 @@ get_reg_request_treatment(struct wiphy *wiphy,
 
 	switch (pending_request->initiator) {
 	case NL80211_REGDOM_SET_BY_CORE:
+	case NL80211_REGDOM_SET_BY_USER:
 		return REG_REQ_IGNORE;
 	case NL80211_REGDOM_SET_BY_COUNTRY_IE:
 		if (reg_request_cell_base(lr)) {
@@ -1388,36 +1389,6 @@ get_reg_request_treatment(struct wiphy *wiphy,
 			return REG_REQ_ALREADY_SET;
 
 		return REG_REQ_INTERSECT;
-	case NL80211_REGDOM_SET_BY_USER:
-		if (reg_request_cell_base(pending_request))
-			return reg_ignore_cell_hint(pending_request);
-
-		if (reg_request_cell_base(lr))
-			return REG_REQ_IGNORE;
-
-		if (lr->initiator == NL80211_REGDOM_SET_BY_COUNTRY_IE)
-			return REG_REQ_INTERSECT;
-		/*
-		 * If the user knows better the user should set the regdom
-		 * to their country before the IE is picked up
-		 */
-		if (lr->initiator == NL80211_REGDOM_SET_BY_USER &&
-		    lr->intersect)
-			return REG_REQ_IGNORE;
-		/*
-		 * Process user requests only after previous user/driver/core
-		 * requests have been processed
-		 */
-		if ((lr->initiator == NL80211_REGDOM_SET_BY_CORE ||
-		     lr->initiator == NL80211_REGDOM_SET_BY_DRIVER ||
-		     lr->initiator == NL80211_REGDOM_SET_BY_USER) &&
-		    regdom_changes(lr->alpha2))
-			return REG_REQ_IGNORE;
-
-		if (!regdom_changes(pending_request->alpha2))
-			return REG_REQ_ALREADY_SET;
-
-		return REG_REQ_OK;
 	}
 
 	return REG_REQ_IGNORE;
@@ -1469,6 +1440,80 @@ reg_process_hint_core(struct regulatory_request *core_request)
 	return REG_REQ_OK;
 }
 
+static enum reg_request_treatment
+__reg_process_hint_user(struct regulatory_request *user_request)
+{
+	struct regulatory_request *lr = get_last_request();
+
+	if (reg_request_cell_base(user_request))
+		return reg_ignore_cell_hint(user_request);
+
+	if (reg_request_cell_base(lr))
+		return REG_REQ_IGNORE;
+
+	if (lr->initiator == NL80211_REGDOM_SET_BY_COUNTRY_IE)
+		return REG_REQ_INTERSECT;
+	/*
+	 * If the user knows better the user should set the regdom
+	 * to their country before the IE is picked up
+	 */
+	if (lr->initiator == NL80211_REGDOM_SET_BY_USER &&
+	    lr->intersect)
+		return REG_REQ_IGNORE;
+	/*
+	 * Process user requests only after previous user/driver/core
+	 * requests have been processed
+	 */
+	if ((lr->initiator == NL80211_REGDOM_SET_BY_CORE ||
+	     lr->initiator == NL80211_REGDOM_SET_BY_DRIVER ||
+	     lr->initiator == NL80211_REGDOM_SET_BY_USER) &&
+	    regdom_changes(lr->alpha2))
+		return REG_REQ_IGNORE;
+
+	if (!regdom_changes(user_request->alpha2))
+		return REG_REQ_ALREADY_SET;
+
+	return REG_REQ_OK;
+}
+
+/**
+ * reg_process_hint_user - process user regulatory requests
+ * @user_request: a pending user regulatory request
+ *
+ * The wireless subsystem can use this function to process
+ * a regulatory request initiated by userspace.
+ *
+ * Returns one of the different reg request treatment values.
+ */
+static enum reg_request_treatment
+reg_process_hint_user(struct regulatory_request *user_request)
+{
+	enum reg_request_treatment treatment;
+	struct regulatory_request *lr;
+
+	treatment = __reg_process_hint_user(user_request);
+	if (treatment == REG_REQ_IGNORE ||
+	    treatment == REG_REQ_ALREADY_SET) {
+		kfree(user_request);
+		return treatment;
+	}
+
+	lr = get_last_request();
+	if (lr != &core_request_world && lr)
+		kfree_rcu(lr, rcu_head);
+
+	user_request->intersect = treatment == REG_REQ_INTERSECT;
+	user_request->processed = false;
+	rcu_assign_pointer(last_request, user_request);
+
+	user_alpha2[0] = user_request->alpha2[0];
+	user_alpha2[1] = user_request->alpha2[1];
+
+	if (call_crda(user_request->alpha2))
+		return REG_REQ_IGNORE;
+	return REG_REQ_OK;
+}
+
 /**
  * __regulatory_hint - hint to the wireless core a regulatory domain
  * @wiphy: if the hint comes from country information from an AP, this
@@ -1585,6 +1630,12 @@ static void reg_process_hint(struct regulatory_request *reg_request)
 		reg_process_hint_core(reg_request);
 		return;
 	case NL80211_REGDOM_SET_BY_USER:
+		treatment = reg_process_hint_user(reg_request);
+		if (treatment == REG_REQ_OK ||
+		    treatment == REG_REQ_ALREADY_SET)
+			return;
+		schedule_delayed_work(&reg_timeout, msecs_to_jiffies(3142));
+		return;
 	case NL80211_REGDOM_SET_BY_DRIVER:
 	case NL80211_REGDOM_SET_BY_COUNTRY_IE:
 		treatment = __regulatory_hint(wiphy, reg_request);
@@ -1601,9 +1652,6 @@ static void reg_process_hint(struct regulatory_request *reg_request)
 			wiphy_update_regulatory(wiphy, reg_request->initiator);
 		break;
 	default:
-		if (reg_request->initiator == NL80211_REGDOM_SET_BY_USER)
-			schedule_delayed_work(&reg_timeout,
-					      msecs_to_jiffies(3142));
 		break;
 	}
 }