--- a/drivers/net/wireless/ath/regd.c
+++ b/drivers/net/wireless/ath/regd.c
@@ -37,7 +37,8 @@
 				NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_OFDM)
 
 /* We allow IBSS on these on a case by case basis by regulatory domain */
-#define ATH9K_5GHZ_5150_5350	REG_RULE(5150-10, 5350+10, 40, 0, 30,\
+#define ATH9K_5GHZ_5150_5350	REG_RULE(5150-10, 5250, 40, 0, 30, 0), \
+				REG_RULE(5250, 5350+10, 40, 0, 30,\
 				NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS)
 #define ATH9K_5GHZ_5470_5850	REG_RULE(5470-10, 5850+10, 40, 0, 30,\
 				NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS)
@@ -55,57 +56,56 @@
 #define ATH9K_5GHZ_NO_MIDBAND	ATH9K_5GHZ_5150_5350, \
 				ATH9K_5GHZ_5725_5850
 
+#define REGD_RULES(...) \
+	.reg_rules = { __VA_ARGS__ }, \
+	.n_reg_rules = ARRAY_SIZE(((struct ieee80211_reg_rule[]) { __VA_ARGS__ }))
+
 /* Can be used for:
  * 0x60, 0x61, 0x62 */
 static const struct ieee80211_regdomain ath_world_regdom_60_61_62 = {
-	.n_reg_rules = 5,
 	.alpha2 =  "99",
-	.reg_rules = {
+	REGD_RULES(
 		ATH9K_2GHZ_ALL,
 		ATH9K_5GHZ_ALL,
-	}
+	)
 };
 
 /* Can be used by 0x63 and 0x65 */
 static const struct ieee80211_regdomain ath_world_regdom_63_65 = {
-	.n_reg_rules = 4,
 	.alpha2 =  "99",
-	.reg_rules = {
+	REGD_RULES(
 		ATH9K_2GHZ_CH01_11,
 		ATH9K_2GHZ_CH12_13,
 		ATH9K_5GHZ_NO_MIDBAND,
-	}
+	)
 };
 
 /* Can be used by 0x64 only */
 static const struct ieee80211_regdomain ath_world_regdom_64 = {
-	.n_reg_rules = 3,
 	.alpha2 =  "99",
-	.reg_rules = {
+	REGD_RULES(
 		ATH9K_2GHZ_CH01_11,
 		ATH9K_5GHZ_NO_MIDBAND,
-	}
+	)
 };
 
 /* Can be used by 0x66 and 0x69 */
 static const struct ieee80211_regdomain ath_world_regdom_66_69 = {
-	.n_reg_rules = 3,
 	.alpha2 =  "99",
-	.reg_rules = {
+	REGD_RULES(
 		ATH9K_2GHZ_CH01_11,
 		ATH9K_5GHZ_ALL,
-	}
+	)
 };
 
 /* Can be used by 0x67, 0x68, 0x6A and 0x6C */
 static const struct ieee80211_regdomain ath_world_regdom_67_68_6A_6C = {
-	.n_reg_rules = 4,
 	.alpha2 =  "99",
-	.reg_rules = {
+	REGD_RULES(
 		ATH9K_2GHZ_CH01_11,
 		ATH9K_2GHZ_CH12_13,
 		ATH9K_5GHZ_ALL,
-	}
+	)
 };
 
 static inline bool is_wwr_sku(u16 regd)