[PATCH ath-devel] wifi: ath: split 5150-5350 regulatory rule

[PATCH ath-devel] wifi: ath: split 5150-5350 regulatory rule

[Rosen Penev]

Allow initiation in the 5150-5240 MHz portion of the world
regulatory rule while retaining NO_IR for 5260-5350 MHz, where
radar detection is required.

The previous single rule marked both ranges NO_IR and unnecessarily
restricted channels 36-48. Update the rule counts for the expanded
rule list.

Assisted-by: Codex:gpt-5.6-luna
Signed-off-by: Rosen Penev <rosenp@gmail.com>
---
 drivers/net/wireless/ath/regd.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/net/wireless/ath/regd.c b/drivers/net/wireless/ath/regd.c
index f15e7bd690b5..b129af0eed88 100644
--- a/drivers/net/wireless/ath/regd.c
+++ b/drivers/net/wireless/ath/regd.c
@@ -43,7 +43,8 @@ static int __ath_regd_init(struct ath_regulatory *reg);
 					 NL80211_RRF_NO_OFDM)
 
 /* We allow IBSS on these on a case by case basis by regulatory domain */
-#define ATH_5GHZ_5150_5350	REG_RULE(5150-10, 5350+10, 80, 0, 30,\
+#define ATH_5GHZ_5150_5350	REG_RULE(5150-10, 5240+10, 80, 0, 30, 0),\
+				REG_RULE(5260-10, 5350+10, 80, 0, 30,\
 					 NL80211_RRF_NO_IR)
 #define ATH_5GHZ_5470_5850	REG_RULE(5470-10, 5850+10, 80, 0, 30,\
 					 NL80211_RRF_NO_IR)
@@ -64,7 +65,7 @@ static int __ath_regd_init(struct ath_regulatory *reg);
 /* Can be used for:
  * 0x60, 0x61, 0x62 */
 static const struct ieee80211_regdomain ath_world_regdom_60_61_62 = {
-	.n_reg_rules = 5,
+	.n_reg_rules = 6,
 	.alpha2 =  "99",
 	.reg_rules = {
 		ATH_2GHZ_ALL,
@@ -74,7 +75,7 @@ static const struct ieee80211_regdomain ath_world_regdom_60_61_62 = {
 
 /* Can be used by 0x63 and 0x65 */
 static const struct ieee80211_regdomain ath_world_regdom_63_65 = {
-	.n_reg_rules = 4,
+	.n_reg_rules = 5,
 	.alpha2 =  "99",
 	.reg_rules = {
 		ATH_2GHZ_CH01_11,
@@ -85,7 +86,7 @@ static const struct ieee80211_regdomain ath_world_regdom_63_65 = {
 
 /* Can be used by 0x64 only */
 static const struct ieee80211_regdomain ath_world_regdom_64 = {
-	.n_reg_rules = 3,
+	.n_reg_rules = 4,
 	.alpha2 =  "99",
 	.reg_rules = {
 		ATH_2GHZ_CH01_11,
@@ -95,7 +96,7 @@ static const struct ieee80211_regdomain ath_world_regdom_64 = {
 
 /* Can be used by 0x66 and 0x69 */
 static const struct ieee80211_regdomain ath_world_regdom_66_69 = {
-	.n_reg_rules = 3,
+	.n_reg_rules = 4,
 	.alpha2 =  "99",
 	.reg_rules = {
 		ATH_2GHZ_CH01_11,
@@ -105,7 +106,7 @@ static const struct ieee80211_regdomain ath_world_regdom_66_69 = {
 
 /* 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,
+	.n_reg_rules = 5,
 	.alpha2 =  "99",
 	.reg_rules = {
 		ATH_2GHZ_CH01_11,
-- 
2.55.0

Re: [PATCH ath-devel] wifi: ath: split 5150-5350 regulatory rule

[Jeff Johnson]

On 9/3/2026 7:25 PM, Rosen Penev wrote:
> Allow initiation in the 5150-5240 MHz portion of the world
> regulatory rule while retaining NO_IR for 5260-5350 MHz, where
> radar detection is required.
> 
> The previous single rule marked both ranges NO_IR and unnecessarily
> restricted channels 36-48. Update the rule counts for the expanded
> rule list.

My understanding is that this is not correct. In world mode the entire 5 GHz
band is restricted since some countries do not allow any transmission in that
band. You must establish that you are in a supported regulatory domain via
802.11d or other mechanisms before transmission.

So I'm dropping this patch from patchwork
> 
> Assisted-by: Codex:gpt-5.6-luna
> Signed-off-by: Rosen Penev <rosenp@gmail.com>
> ---
>  drivers/net/wireless/ath/regd.c | 13 +++++++------
>  1 file changed, 7 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/net/wireless/ath/regd.c b/drivers/net/wireless/ath/regd.c
> index f15e7bd690b5..b129af0eed88 100644
> --- a/drivers/net/wireless/ath/regd.c
> +++ b/drivers/net/wireless/ath/regd.c
> @@ -43,7 +43,8 @@ static int __ath_regd_init(struct ath_regulatory *reg);
>  					 NL80211_RRF_NO_OFDM)
>  
>  /* We allow IBSS on these on a case by case basis by regulatory domain */
> -#define ATH_5GHZ_5150_5350	REG_RULE(5150-10, 5350+10, 80, 0, 30,\
> +#define ATH_5GHZ_5150_5350	REG_RULE(5150-10, 5240+10, 80, 0, 30, 0),\
> +				REG_RULE(5260-10, 5350+10, 80, 0, 30,\
>  					 NL80211_RRF_NO_IR)
>  #define ATH_5GHZ_5470_5850	REG_RULE(5470-10, 5850+10, 80, 0, 30,\
>  					 NL80211_RRF_NO_IR)
> @@ -64,7 +65,7 @@ static int __ath_regd_init(struct ath_regulatory *reg);
>  /* Can be used for:
>   * 0x60, 0x61, 0x62 */
>  static const struct ieee80211_regdomain ath_world_regdom_60_61_62 = {
> -	.n_reg_rules = 5,
> +	.n_reg_rules = 6,
>  	.alpha2 =  "99",
>  	.reg_rules = {
>  		ATH_2GHZ_ALL,
> @@ -74,7 +75,7 @@ static const struct ieee80211_regdomain ath_world_regdom_60_61_62 = {
>  
>  /* Can be used by 0x63 and 0x65 */
>  static const struct ieee80211_regdomain ath_world_regdom_63_65 = {
> -	.n_reg_rules = 4,
> +	.n_reg_rules = 5,
>  	.alpha2 =  "99",
>  	.reg_rules = {
>  		ATH_2GHZ_CH01_11,
> @@ -85,7 +86,7 @@ static const struct ieee80211_regdomain ath_world_regdom_63_65 = {
>  
>  /* Can be used by 0x64 only */
>  static const struct ieee80211_regdomain ath_world_regdom_64 = {
> -	.n_reg_rules = 3,
> +	.n_reg_rules = 4,
>  	.alpha2 =  "99",
>  	.reg_rules = {
>  		ATH_2GHZ_CH01_11,
> @@ -95,7 +96,7 @@ static const struct ieee80211_regdomain ath_world_regdom_64 = {
>  
>  /* Can be used by 0x66 and 0x69 */
>  static const struct ieee80211_regdomain ath_world_regdom_66_69 = {
> -	.n_reg_rules = 3,
> +	.n_reg_rules = 4,
>  	.alpha2 =  "99",
>  	.reg_rules = {
>  		ATH_2GHZ_CH01_11,
> @@ -105,7 +106,7 @@ static const struct ieee80211_regdomain ath_world_regdom_66_69 = {
>  
>  /* 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,
> +	.n_reg_rules = 5,
>  	.alpha2 =  "99",
>  	.reg_rules = {
>  		ATH_2GHZ_CH01_11,