ALSA: seq: remove unused callback_all field

Signed-off-by: NClemens Ladisch <clemens@ladisch.de>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

include/sound/seq_kernel.h

@@ -64,7 +64,6 @@ struct snd_seq_port_callback {
 	int (*unuse)(void *private_data, struct snd_seq_port_subscribe *info);
 	int (*event_input)(struct snd_seq_event *ev, int direct, void *private_data, int atomic, int hop);
 	void (*private_free)(void *private_data);
-	unsigned int callback_all;	/* call subscribe callbacks at each connection/disconnection */
 	/*...*/
 };
 

sound/core/seq/seq_clientmgr.c

@@ -1279,7 +1279,6 @@ static int snd_seq_ioctl_create_port(struct snd_seq_client *client,
 				port->owner = callback->owner;
 			port->private_data = callback->private_data;
 			port->private_free = callback->private_free;
-			port->callback_all = callback->callback_all;
 			port->event_input = callback->event_input;
 			port->c_src.open = callback->subscribe;
 			port->c_src.close = callback->unsubscribe;

sound/core/seq/seq_ports.c

@@ -411,9 +411,6 @@ int snd_seq_get_port_info(struct snd_seq_client_port * port,
  * invoked.
  * This feature is useful if these callbacks are associated with
  * initialization or termination of devices (see seq_midi.c).
- *
- * If callback_all option is set, the callback function is invoked
- * at each connection/disconnection. 
  */
 
 static int subscribe_port(struct snd_seq_client *client,
@@ -427,7 +424,7 @@ static int subscribe_port(struct snd_seq_client *client,
 	if (!try_module_get(port->owner))
 		return -EFAULT;
 	grp->count++;
-	if (grp->open && (port->callback_all || grp->count == 1)) {
+	if (grp->open && grp->count == 1) {
 		err = grp->open(port->private_data, info);
 		if (err < 0) {
 			module_put(port->owner);
@@ -452,7 +449,7 @@ static int unsubscribe_port(struct snd_seq_client *client,
 	if (! grp->count)
 		return -EINVAL;
 	grp->count--;
-	if (grp->close && (port->callback_all || grp->count == 0))
+	if (grp->close && grp->count == 0)
 		err = grp->close(port->private_data, info);
 	if (send_ack && client->type == USER_CLIENT)
 		snd_seq_client_notify_subscription(port->addr.client, port->addr.port,

sound/core/seq/seq_ports.h

@@ -73,7 +73,6 @@ struct snd_seq_client_port {
 			   int atomic, int hop);
 	void (*private_free)(void *private_data);
 	void *private_data;
-	unsigned int callback_all : 1;
 	unsigned int closing : 1;
 	unsigned int timestamping: 1;
 	unsigned int time_real: 1;