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[ALSA] seq: remove struct snd_seq_client_callback
The fields of struct snd_seq_client_callback either aren't used or are always set to the same value, so we can get rid of it altogether. Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
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255bd169ab
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83e8ad6984
@ -60,15 +60,6 @@ typedef union snd_seq_timestamp snd_seq_timestamp_t;
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/* max size of event size */
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#define SNDRV_SEQ_MAX_EVENT_LEN 0x3fffffff
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/* call-backs for kernel client */
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struct snd_seq_client_callback {
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void *private_data;
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unsigned allow_input: 1,
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allow_output: 1;
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/*...*/
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};
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/* call-backs for kernel port */
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struct snd_seq_port_callback {
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struct module *owner;
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@ -84,8 +75,7 @@ struct snd_seq_port_callback {
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};
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/* interface for kernel client */
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int snd_seq_create_kernel_client(struct snd_card *card, int client_index,
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struct snd_seq_client_callback *callback);
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int snd_seq_create_kernel_client(struct snd_card *card, int client_index);
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int snd_seq_delete_kernel_client(int client);
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int snd_seq_kernel_client_enqueue(int client, struct snd_seq_event *ev, int atomic, int hop);
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int snd_seq_kernel_client_dispatch(int client, struct snd_seq_event *ev, int atomic, int hop);
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@ -65,7 +65,6 @@ int __init
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snd_seq_oss_create_client(void)
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{
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int rc;
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struct snd_seq_client_callback callback;
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struct snd_seq_client_info *info;
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struct snd_seq_port_info *port;
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struct snd_seq_port_callback port_callback;
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@ -78,13 +77,7 @@ snd_seq_oss_create_client(void)
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}
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/* create ALSA client */
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memset(&callback, 0, sizeof(callback));
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callback.private_data = NULL;
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callback.allow_input = 1;
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callback.allow_output = 1;
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rc = snd_seq_create_kernel_client(NULL, SNDRV_SEQ_CLIENT_OSS, &callback);
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rc = snd_seq_create_kernel_client(NULL, SNDRV_SEQ_CLIENT_OSS);
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if (rc < 0)
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goto __error;
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@ -2212,15 +2212,12 @@ static long snd_seq_ioctl(struct file *file, unsigned int cmd, unsigned long arg
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/* exported to kernel modules */
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int snd_seq_create_kernel_client(struct snd_card *card, int client_index,
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struct snd_seq_client_callback *callback)
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int snd_seq_create_kernel_client(struct snd_card *card, int client_index)
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{
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struct snd_seq_client *client;
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snd_assert(! in_interrupt(), return -EBUSY);
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if (callback == NULL)
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return -EINVAL;
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if (card && client_index > 3)
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return -EINVAL;
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if (card == NULL && client_index > 63)
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@ -2244,8 +2241,8 @@ int snd_seq_create_kernel_client(struct snd_card *card, int client_index,
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}
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usage_alloc(&client_usage, 1);
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client->accept_input = callback->allow_output;
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client->accept_output = callback->allow_input;
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client->accept_input = 1;
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client->accept_output = 1;
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sprintf(client->name, "Client-%d", client->number);
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@ -91,8 +91,6 @@ struct snd_seq_client *snd_seq_client_use_ptr(int clientid);
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int snd_seq_dispatch_event(struct snd_seq_event_cell *cell, int atomic, int hop);
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/* exported to other modules */
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int snd_seq_register_kernel_client(struct snd_seq_client_callback *callback, void *private_data);
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int snd_seq_unregister_kernel_client(int client);
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int snd_seq_kernel_client_enqueue(int client, struct snd_seq_event *ev, int atomic, int hop);
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int snd_seq_kernel_client_enqueue_blocking(int client, struct snd_seq_event * ev,
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struct file *file, int atomic, int hop);
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@ -193,7 +193,6 @@ create_port(int idx, int type)
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static int __init
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register_client(void)
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{
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struct snd_seq_client_callback cb;
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struct snd_seq_client_info cinfo;
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struct snd_seq_dummy_port *rec1, *rec2;
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int i;
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@ -204,10 +203,7 @@ register_client(void)
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}
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/* create client */
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memset(&cb, 0, sizeof(cb));
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cb.allow_input = 1;
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cb.allow_output = 1;
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my_client = snd_seq_create_kernel_client(NULL, SNDRV_SEQ_CLIENT_DUMMY, &cb);
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my_client = snd_seq_create_kernel_client(NULL, SNDRV_SEQ_CLIENT_DUMMY);
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if (my_client < 0)
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return my_client;
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@ -295,7 +295,6 @@ snd_seq_midisynth_register_port(struct snd_seq_device *dev)
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struct snd_rawmidi_info *info;
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int newclient = 0;
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unsigned int p, ports;
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struct snd_seq_client_callback callbacks;
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struct snd_seq_port_callback pcallbacks;
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struct snd_card *card = dev->card;
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int device = dev->device;
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@ -334,10 +333,7 @@ snd_seq_midisynth_register_port(struct snd_seq_device *dev)
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kfree(info);
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return -ENOMEM;
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}
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memset(&callbacks, 0, sizeof(callbacks));
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callbacks.private_data = client;
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callbacks.allow_input = callbacks.allow_output = 1;
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client->seq_client = snd_seq_create_kernel_client(card, 0, &callbacks);
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client->seq_client = snd_seq_create_kernel_client(card, 0);
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if (client->seq_client < 0) {
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kfree(client);
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up(®ister_mutex);
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@ -120,8 +120,6 @@ static int event_input_timer(struct snd_seq_event * ev, int direct, void *privat
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/* register our internal client */
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int __init snd_seq_system_client_init(void)
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{
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struct snd_seq_client_callback callbacks;
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struct snd_seq_port_callback pcallbacks;
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struct snd_seq_client_info *inf;
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struct snd_seq_port_info *port;
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@ -134,14 +132,12 @@ int __init snd_seq_system_client_init(void)
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return -ENOMEM;
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}
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memset(&callbacks, 0, sizeof(callbacks));
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memset(&pcallbacks, 0, sizeof(pcallbacks));
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pcallbacks.owner = THIS_MODULE;
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pcallbacks.event_input = event_input_timer;
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/* register client */
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callbacks.allow_input = callbacks.allow_output = 1;
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sysclient = snd_seq_create_kernel_client(NULL, 0, &callbacks);
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sysclient = snd_seq_create_kernel_client(NULL, 0);
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/* set our name */
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inf->client = 0;
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@ -359,7 +359,6 @@ static struct snd_rawmidi_ops snd_virmidi_output_ops = {
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static int snd_virmidi_dev_attach_seq(struct snd_virmidi_dev *rdev)
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{
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int client;
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struct snd_seq_client_callback callbacks;
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struct snd_seq_port_callback pcallbacks;
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struct snd_seq_client_info *info;
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struct snd_seq_port_info *pinfo;
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@ -375,11 +374,7 @@ static int snd_virmidi_dev_attach_seq(struct snd_virmidi_dev *rdev)
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goto __error;
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}
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memset(&callbacks, 0, sizeof(callbacks));
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callbacks.private_data = rdev;
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callbacks.allow_input = 1;
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callbacks.allow_output = 1;
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client = snd_seq_create_kernel_client(rdev->card, rdev->device, &callbacks);
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client = snd_seq_create_kernel_client(rdev->card, rdev->device);
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if (client < 0) {
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err = client;
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goto __error;
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@ -219,7 +219,6 @@ static int snd_opl3_seq_new_device(struct snd_seq_device *dev)
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{
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struct snd_opl3 *opl3;
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int client;
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struct snd_seq_client_callback callbacks;
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struct snd_seq_client_info cinfo;
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int opl_ver;
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@ -232,11 +231,8 @@ static int snd_opl3_seq_new_device(struct snd_seq_device *dev)
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opl3->seq_client = -1;
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/* allocate new client */
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memset(&callbacks, 0, sizeof(callbacks));
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callbacks.private_data = opl3;
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callbacks.allow_output = callbacks.allow_input = 1;
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client = opl3->seq_client =
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snd_seq_create_kernel_client(opl3->card, opl3->seq_dev_num, &callbacks);
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snd_seq_create_kernel_client(opl3->card, opl3->seq_dev_num);
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if (client < 0)
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return client;
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@ -127,7 +127,6 @@ static int snd_opl4_seq_new_device(struct snd_seq_device *dev)
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{
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struct snd_opl4 *opl4;
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int client;
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struct snd_seq_client_callback callbacks;
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struct snd_seq_client_info cinfo;
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struct snd_seq_port_callback pcallbacks;
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@ -144,10 +143,7 @@ static int snd_opl4_seq_new_device(struct snd_seq_device *dev)
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opl4->chset->private_data = opl4;
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/* allocate new client */
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memset(&callbacks, 0, sizeof(callbacks));
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callbacks.private_data = opl4;
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callbacks.allow_output = callbacks.allow_input = 1;
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client = snd_seq_create_kernel_client(opl4->card, opl4->seq_dev_num, &callbacks);
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client = snd_seq_create_kernel_client(opl4->card, opl4->seq_dev_num);
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if (client < 0) {
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snd_midi_channel_free_set(opl4->chset);
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return client;
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@ -214,7 +214,6 @@ static int snd_gus_synth_new_device(struct snd_seq_device *dev)
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{
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struct snd_gus_card *gus;
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int client, i;
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struct snd_seq_client_callback callbacks;
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struct snd_seq_client_info *cinfo;
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struct snd_seq_port_subscribe sub;
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struct snd_iwffff_ops *iwops;
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@ -233,11 +232,8 @@ static int snd_gus_synth_new_device(struct snd_seq_device *dev)
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return -ENOMEM;
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/* allocate new client */
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memset(&callbacks, 0, sizeof(callbacks));
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callbacks.private_data = gus;
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callbacks.allow_output = callbacks.allow_input = 1;
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client = gus->gf1.seq_client =
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snd_seq_create_kernel_client(gus->card, 1, &callbacks);
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snd_seq_create_kernel_client(gus->card, 1);
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if (client < 0) {
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kfree(cinfo);
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return client;
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@ -934,7 +934,6 @@ static int snd_trident_synth_new_device(struct snd_seq_device *dev)
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{
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struct snd_trident *trident;
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int client, i;
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struct snd_seq_client_callback callbacks;
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struct snd_seq_client_info cinfo;
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struct snd_seq_port_subscribe sub;
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struct snd_simple_ops *simpleops;
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@ -947,11 +946,8 @@ static int snd_trident_synth_new_device(struct snd_seq_device *dev)
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trident->synth.seq_client = -1;
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/* allocate new client */
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memset(&callbacks, 0, sizeof(callbacks));
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callbacks.private_data = trident;
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callbacks.allow_output = callbacks.allow_input = 1;
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client = trident->synth.seq_client =
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snd_seq_create_kernel_client(trident->card, 1, &callbacks);
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snd_seq_create_kernel_client(trident->card, 1);
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if (client < 0)
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return client;
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@ -347,17 +347,11 @@ snd_emux_unuse(void *private_data, struct snd_seq_port_subscribe *info)
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static int
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get_client(struct snd_card *card, int index, char *name)
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{
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struct snd_seq_client_callback callbacks;
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struct snd_seq_client_info cinfo;
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int client;
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memset(&callbacks, 0, sizeof(callbacks));
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callbacks.private_data = NULL;
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callbacks.allow_input = 1;
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callbacks.allow_output = 1;
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/* Find a free client, start from 1 as the MPU expects to use 0 */
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client = snd_seq_create_kernel_client(card, index, &callbacks);
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client = snd_seq_create_kernel_client(card, index);
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if (client < 0)
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return client;
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