wifi: wilc1000: simplify remain on channel support

For 'struct wilc_remain_ch', drop set but otherwise unused 'duration'
field and adjust 'expired' callback assuming that the only data passed
to it is 'struct wilc_vif *', thus making 'wilc_remain_on_channel()'
a bit simpler as well. Compile tested only.
Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
Acked-by: Ajay Singh <ajay.kathat@microchip.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20231026141016.71407-1-dmantipov@yandex.ru

drivers/net/wireless/microchip/wilc1000/cfg80211.c

@@ -1094,9 +1094,8 @@ static void wilc_wfi_mgmt_tx_complete(void *priv, int status)
 	kfree(pv_data);
 }
 
-static void wilc_wfi_remain_on_channel_expired(void *data, u64 cookie)
+static void wilc_wfi_remain_on_channel_expired(struct wilc_vif *vif, u64 cookie)
 {
-	struct wilc_vif *vif = data;
 	struct wilc_priv *priv = &vif->priv;
 	struct wilc_wfi_p2p_listen_params *params = &priv->remain_on_ch_params;
 
@@ -1128,9 +1127,8 @@ static int remain_on_channel(struct wiphy *wiphy,
 	if (id == 0)
 		id = ++priv->inc_roc_cookie;
 
-	ret = wilc_remain_on_channel(vif, id, duration, chan->hw_value,
-				     wilc_wfi_remain_on_channel_expired,
-				     (void *)vif);
+	ret = wilc_remain_on_channel(vif, id, chan->hw_value,
+				     wilc_wfi_remain_on_channel_expired);
 	if (ret)
 		return ret;
 

drivers/net/wireless/microchip/wilc1000/hif.c

@@ -878,7 +878,7 @@ static int handle_remain_on_chan(struct wilc_vif *vif,
 	if (result)
 		return -EBUSY;
 
-	hif_drv->remain_on_ch.arg = hif_remain_ch->arg;
+	hif_drv->remain_on_ch.vif = hif_remain_ch->vif;
 	hif_drv->remain_on_ch.expired = hif_remain_ch->expired;
 	hif_drv->remain_on_ch.ch = hif_remain_ch->ch;
 	hif_drv->remain_on_ch.cookie = hif_remain_ch->cookie;
@@ -915,7 +915,7 @@ static int wilc_handle_roc_expired(struct wilc_vif *vif, u64 cookie)
 		}
 
 		if (hif_drv->remain_on_ch.expired) {
-			hif_drv->remain_on_ch.expired(hif_drv->remain_on_ch.arg,
+			hif_drv->remain_on_ch.expired(hif_drv->remain_on_ch.vif,
 						      cookie);
 		}
 	} else {
@@ -1669,18 +1669,15 @@ void wilc_scan_complete_received(struct wilc *wilc, u8 *buffer, u32 length)
 	}
 }
 
-int wilc_remain_on_channel(struct wilc_vif *vif, u64 cookie,
-			   u32 duration, u16 chan,
-			   void (*expired)(void *, u64),
-			   void *user_arg)
+int wilc_remain_on_channel(struct wilc_vif *vif, u64 cookie, u16 chan,
+			   void (*expired)(struct wilc_vif *, u64))
 {
 	struct wilc_remain_ch roc;
 	int result;
 
 	roc.ch = chan;
 	roc.expired = expired;
-	roc.arg = user_arg;
-	roc.duration = duration;
+	roc.vif = vif;
 	roc.cookie = cookie;
 	result = handle_remain_on_chan(vif, &roc);
 	if (result)

drivers/net/wireless/microchip/wilc1000/hif.h

@@ -118,11 +118,11 @@ struct wilc_conn_info {
 	void *param;
 };
 
+struct wilc_vif;
 struct wilc_remain_ch {
 	u16 ch;
-	u32 duration;
-	void (*expired)(void *priv, u64 cookie);
-	void *arg;
+	void (*expired)(struct wilc_vif *vif, u64 cookie);
+	struct wilc_vif *vif;
 	u64 cookie;
 };
 
@@ -150,7 +150,6 @@ struct host_if_drv {
 	u8 assoc_resp[WILC_MAX_ASSOC_RESP_FRAME_SIZE];
 };
 
-struct wilc_vif;
 int wilc_add_ptk(struct wilc_vif *vif, const u8 *ptk, u8 ptk_key_len,
 		 const u8 *mac_addr, const u8 *rx_mic, const u8 *tx_mic,
 		 u8 mode, u8 cipher_mode, u8 index);
@@ -192,10 +191,8 @@ int wilc_edit_station(struct wilc_vif *vif, const u8 *mac,
 int wilc_set_power_mgmt(struct wilc_vif *vif, bool enabled, u32 timeout);
 int wilc_setup_multicast_filter(struct wilc_vif *vif, u32 enabled, u32 count,
 				u8 *mc_list);
-int wilc_remain_on_channel(struct wilc_vif *vif, u64 cookie,
-			   u32 duration, u16 chan,
-			   void (*expired)(void *, u64),
-			   void *user_arg);
+int wilc_remain_on_channel(struct wilc_vif *vif, u64 cookie, u16 chan,
+			   void (*expired)(struct wilc_vif *, u64));
 int wilc_listen_state_expired(struct wilc_vif *vif, u64 cookie);
 void wilc_frame_register(struct wilc_vif *vif, u16 frame_type, bool reg);
 int wilc_set_operation_mode(struct wilc_vif *vif, int index, u8 mode,