[PATCH v2] wifi: mt76: mt792x: Limit the concurrent STA and SoftAP to operate on the same channel

[Mingyen Hsieh]

From: Leon Yen <leon.yen at mediatek.com>

Due to the lack of NoA(Notice of Absence) mechanism in SoftAP mode, it is
inappropriate to allow concurrent SoftAP and STA to operate on the
different channels.

This patch restricts the concurrent SoftAP and STA to be setup on the same
channel only.

Reported-by: kernel test robot <lkp at intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202506250512.Q0I4znsF-lkp@intel.com/
Signed-off-by: Leon Yen <leon.yen at mediatek.com>
Signed-off-by: Ming Yen Hsieh <mingyen.hsieh at mediatek.com>
---
v2:
  - add the "mt792x" tag to title
  - fix the build error for "initializer element is not a complie-time constant" issue
---
 .../net/wireless/mediatek/mt76/mt792x_core.c  | 32 ++++++++++++++++---
 1 file changed, 27 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt792x_core.c b/drivers/net/wireless/mediatek/mt76/mt792x_core.c
index 2224925955d0..bdb4fefc6d36 100644
--- a/drivers/net/wireless/mediatek/mt76/mt792x_core.c
+++ b/drivers/net/wireless/mediatek/mt76/mt792x_core.c
@@ -28,7 +28,7 @@ static const struct ieee80211_iface_combination if_comb[] = {
 	},
 };
 
-static const struct ieee80211_iface_limit if_limits_chanctx[] = {
+static const struct ieee80211_iface_limit if_limits_chanctx_mcc[] = {
 	{
 		.max = 2,
 		.types = BIT(NL80211_IFTYPE_STATION) |
@@ -36,8 +36,23 @@ static const struct ieee80211_iface_limit if_limits_chanctx[] = {
 	},
 	{
 		.max = 1,
-		.types = BIT(NL80211_IFTYPE_AP) |
-			 BIT(NL80211_IFTYPE_P2P_GO)
+		.types = BIT(NL80211_IFTYPE_P2P_GO)
+	},
+	{
+		.max = 1,
+		.types = BIT(NL80211_IFTYPE_P2P_DEVICE)
+	}
+};
+
+static const struct ieee80211_iface_limit if_limits_chanctx_scc[] = {
+	{
+		.max = 2,
+		.types = BIT(NL80211_IFTYPE_STATION) |
+			 BIT(NL80211_IFTYPE_P2P_CLIENT)
+	},
+	{
+		.max = 1,
+		.types = BIT(NL80211_IFTYPE_AP)
 	},
 	{
 		.max = 1,
@@ -47,11 +62,18 @@ static const struct ieee80211_iface_limit if_limits_chanctx[] = {
 
 static const struct ieee80211_iface_combination if_comb_chanctx[] = {
 	{
-		.limits = if_limits_chanctx,
-		.n_limits = ARRAY_SIZE(if_limits_chanctx),
+		.limits = if_limits_chanctx_mcc,
+		.n_limits = ARRAY_SIZE(if_limits_chanctx_mcc),
 		.max_interfaces = 3,
 		.num_different_channels = 2,
 		.beacon_int_infra_match = false,
+	},
+	{
+		.limits = if_limits_chanctx_scc,
+		.n_limits = ARRAY_SIZE(if_limits_chanctx_scc),
+		.max_interfaces = 3,
+		.num_different_channels = 1,
+		.beacon_int_infra_match = false,
 	}
 };
 
-- 
2.34.1