wifi: mac80211: simplify non-chanctx drivers

There are still surprisingly many non-chanctx drivers, but in
mac80211 that code is a bit awkward. Simplify this by having
those drivers assign 'emulated' ops, so that the mac80211 code
can be more unified between non-chanctx/chanctx drivers. This
cuts the number of places caring about it by about 15, which
are scattered across - now they're fewer and no longer in the
channel context handling.

Link: https://msgid.link/20240129194108.6d0ead50f5cf.I60d093b2fc81ca1853925a4d0ac3a2337d5baa5b@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

6 files changed, 24 insertions, 3 deletions

diff --git a/drivers/net/wireless/realtek/rtl818x/rtl8180/dev.c b/drivers/net/wireless/realtek/rtl818x/rtl8180/dev.c
index f6c25a52b69a..77b6cb7e1f6b 100644
--- a/drivers/net/wireless/realtek/rtl818x/rtl8180/dev.c
+++ b/drivers/net/wireless/realtek/rtl818x/rtl8180/dev.c
@@ -1607,6 +1607,10 @@ static void rtl8180_configure_filter(struct ieee80211_hw *dev,
 }
 
 static const struct ieee80211_ops rtl8180_ops = {
+	.add_chanctx = ieee80211_emulate_add_chanctx,
+	.remove_chanctx = ieee80211_emulate_remove_chanctx,
+	.change_chanctx = ieee80211_emulate_change_chanctx,
+	.switch_vif_chanctx = ieee80211_emulate_switch_vif_chanctx,
 	.tx			= rtl8180_tx,
 	.wake_tx_queue		= ieee80211_handle_wake_tx_queue,
 	.start			= rtl8180_start,
diff --git a/drivers/net/wireless/realtek/rtl818x/rtl8187/dev.c b/drivers/net/wireless/realtek/rtl818x/rtl8187/dev.c
index 04945f905d6d..78d99afa373d 100644
--- a/drivers/net/wireless/realtek/rtl818x/rtl8187/dev.c
+++ b/drivers/net/wireless/realtek/rtl818x/rtl8187/dev.c
@@ -1377,6 +1377,10 @@ static int rtl8187_conf_tx(struct ieee80211_hw *dev,
 
 
 static const struct ieee80211_ops rtl8187_ops = {
+	.add_chanctx = ieee80211_emulate_add_chanctx,
+	.remove_chanctx = ieee80211_emulate_remove_chanctx,
+	.change_chanctx = ieee80211_emulate_change_chanctx,
+	.switch_vif_chanctx = ieee80211_emulate_switch_vif_chanctx,
 	.tx			= rtl8187_tx,
 	.wake_tx_queue		= ieee80211_handle_wake_tx_queue,
 	.start			= rtl8187_start,
diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
index 055f66b623ff..b0c1db726d7a 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
@@ -7654,6 +7654,10 @@ static int rtl8xxxu_sta_remove(struct ieee80211_hw *hw,
 }
 
 static const struct ieee80211_ops rtl8xxxu_ops = {
+	.add_chanctx = ieee80211_emulate_add_chanctx,
+	.remove_chanctx = ieee80211_emulate_remove_chanctx,
+	.change_chanctx = ieee80211_emulate_change_chanctx,
+	.switch_vif_chanctx = ieee80211_emulate_switch_vif_chanctx,
 	.tx = rtl8xxxu_tx,
 	.wake_tx_queue = ieee80211_handle_wake_tx_queue,
 	.add_interface = rtl8xxxu_add_interface,
diff --git a/drivers/net/wireless/realtek/rtlwifi/core.c b/drivers/net/wireless/realtek/rtlwifi/core.c
index 69e97647e3d6..2e60a6991ca1 100644
--- a/drivers/net/wireless/realtek/rtlwifi/core.c
+++ b/drivers/net/wireless/realtek/rtlwifi/core.c
@@ -1903,6 +1903,10 @@ void rtl_init_sw_leds(struct ieee80211_hw *hw)
 EXPORT_SYMBOL(rtl_init_sw_leds);
 
 const struct ieee80211_ops rtl_ops = {
+	.add_chanctx = ieee80211_emulate_add_chanctx,
+	.remove_chanctx = ieee80211_emulate_remove_chanctx,
+	.change_chanctx = ieee80211_emulate_change_chanctx,
+	.switch_vif_chanctx = ieee80211_emulate_switch_vif_chanctx,
 	.start = rtl_op_start,
 	.stop = rtl_op_stop,
 	.tx = rtl_op_tx,
diff --git a/drivers/net/wireless/realtek/rtw88/mac80211.c b/drivers/net/wireless/realtek/rtw88/mac80211.c
index d8d68f16014e..7af5bf7fe5b6 100644
--- a/drivers/net/wireless/realtek/rtw88/mac80211.c
+++ b/drivers/net/wireless/realtek/rtw88/mac80211.c
@@ -927,6 +927,10 @@ static void rtw_ops_sta_rc_update(struct ieee80211_hw *hw,
 }
 
 const struct ieee80211_ops rtw_ops = {
+	.add_chanctx = ieee80211_emulate_add_chanctx,
+	.remove_chanctx = ieee80211_emulate_remove_chanctx,
+	.change_chanctx = ieee80211_emulate_change_chanctx,
+	.switch_vif_chanctx = ieee80211_emulate_switch_vif_chanctx,
 	.tx			= rtw_ops_tx,
 	.wake_tx_queue		= rtw_ops_wake_tx_queue,
 	.start			= rtw_ops_start,
diff --git a/drivers/net/wireless/realtek/rtw89/core.c b/drivers/net/wireless/realtek/rtw89/core.c
index 61a216464b6d..650c507c8ed3 100644
--- a/drivers/net/wireless/realtek/rtw89/core.c
+++ b/drivers/net/wireless/realtek/rtw89/core.c
@@ -4579,9 +4579,10 @@ struct rtw89_dev *rtw89_alloc_ieee80211_hw(struct device *device,
 		     !RTW89_CHK_FW_FEATURE(BEACON_FILTER, &early_fw);
 
 	if (no_chanctx) {
-		ops->add_chanctx = NULL;
-		ops->remove_chanctx = NULL;
-		ops->change_chanctx = NULL;
+		ops->add_chanctx = ieee80211_emulate_add_chanctx;
+		ops->remove_chanctx = ieee80211_emulate_remove_chanctx;
+		ops->change_chanctx = ieee80211_emulate_change_chanctx;
+		ops->switch_vif_chanctx = ieee80211_emulate_switch_vif_chanctx;
 		ops->assign_vif_chanctx = NULL;
 		ops->unassign_vif_chanctx = NULL;
 		ops->remain_on_channel = NULL;