205 			struct snd_kcontrol *kctl, unsigned int ioff)  in snd_ctl_notify_one()  argument
207 	struct snd_ctl_elem_id id = kctl->id;  in snd_ctl_notify_one()
215 		lops->lnotify(card, mask, kctl, ioff);  in snd_ctl_notify_one()
233 static int snd_ctl_new(struct snd_kcontrol **kctl, unsigned int count,  in snd_ctl_new()  argument
241 	*kctl = kzalloc(struct_size(*kctl, vd, count), GFP_KERNEL);  in snd_ctl_new()
242 	if (!*kctl)  in snd_ctl_new()
246 		(*kctl)->vd[idx].access = access;  in snd_ctl_new()
247 		(*kctl)->vd[idx].owner = file;  in snd_ctl_new()
249 	(*kctl)->count = count;  in snd_ctl_new()
268 	struct snd_kcontrol *kctl;  in snd_ctl_new1()  local
292 	err = snd_ctl_new(&kctl, count, access, NULL);  in snd_ctl_new1()
297 	kctl->id.iface = ncontrol->iface;  in snd_ctl_new1()
298 	kctl->id.device = ncontrol->device;  in snd_ctl_new1()
299 	kctl->id.subdevice = ncontrol->subdevice;  in snd_ctl_new1()
301 		strscpy(kctl->id.name, ncontrol->name, sizeof(kctl->id.name));  in snd_ctl_new1()
302 		if (strcmp(ncontrol->name, kctl->id.name) != 0)  in snd_ctl_new1()
304 				ncontrol->name, kctl->id.name);  in snd_ctl_new1()
306 	kctl->id.index = ncontrol->index;  in snd_ctl_new1()
308 	kctl->info = ncontrol->info;  in snd_ctl_new1()
309 	kctl->get = ncontrol->get;  in snd_ctl_new1()
310 	kctl->put = ncontrol->put;  in snd_ctl_new1()
311 	kctl->tlv.p = ncontrol->tlv.p;  in snd_ctl_new1()
313 	kctl->private_value = ncontrol->private_value;  in snd_ctl_new1()
314 	kctl->private_data = private_data;  in snd_ctl_new1()
316 	return kctl;  in snd_ctl_new1()
341 	struct snd_kcontrol *kctl;  in snd_ctl_remove_numid_conflict()  local
347 	list_for_each_entry(kctl, &card->controls, list) {  in snd_ctl_remove_numid_conflict()
348 		if (kctl->id.numid < card->last_numid + 1 + count &&  in snd_ctl_remove_numid_conflict()
349 		    kctl->id.numid + kctl->count > card->last_numid + 1) {  in snd_ctl_remove_numid_conflict()
350 		    	card->last_numid = kctl->id.numid + kctl->count - 1;  in snd_ctl_remove_numid_conflict()
372 static bool elem_id_matches(const struct snd_kcontrol *kctl,  in elem_id_matches()  argument
375 	return kctl->id.iface == id->iface &&  in elem_id_matches()
376 		kctl->id.device == id->device &&  in elem_id_matches()
377 		kctl->id.subdevice == id->subdevice &&  in elem_id_matches()
378 		!strncmp(kctl->id.name, id->name, sizeof(kctl->id.name)) &&  in elem_id_matches()
379 		kctl->id.index <= id->index &&  in elem_id_matches()
380 		kctl->id.index + kctl->count > id->index;  in elem_id_matches()
640 	struct snd_kcontrol *kctl;  in snd_ctl_remove_id()  local
644 	kctl = snd_ctl_find_id_locked(card, id);  in snd_ctl_remove_id()
645 	if (kctl == NULL) {  in snd_ctl_remove_id()
649 	ret = snd_ctl_remove_locked(card, kctl);  in snd_ctl_remove_id()
669 	struct snd_kcontrol *kctl;  in snd_ctl_remove_user_ctl()  local
673 	kctl = snd_ctl_find_id_locked(card, id);  in snd_ctl_remove_user_ctl()
674 	if (kctl == NULL) {  in snd_ctl_remove_user_ctl()
678 	if (!(kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_USER)) {  in snd_ctl_remove_user_ctl()
682 	for (idx = 0; idx < kctl->count; idx++)  in snd_ctl_remove_user_ctl()
683 		if (kctl->vd[idx].owner != NULL && kctl->vd[idx].owner != file) {  in snd_ctl_remove_user_ctl()
687 	ret = snd_ctl_remove_locked(card, kctl);  in snd_ctl_remove_user_ctl()
708 	struct snd_kcontrol *kctl;  in snd_ctl_activate_id()  local
714 	kctl = snd_ctl_find_id_locked(card, id);  in snd_ctl_activate_id()
715 	if (kctl == NULL) {  in snd_ctl_activate_id()
719 	index_offset = snd_ctl_get_ioff(kctl, id);  in snd_ctl_activate_id()
720 	vd = &kctl->vd[index_offset];  in snd_ctl_activate_id()
731 	snd_ctl_build_ioff(id, kctl, index_offset);  in snd_ctl_activate_id()
733 	snd_ctl_notify_one(card, SNDRV_CTL_EVENT_MASK_INFO, kctl, index_offset);  in snd_ctl_activate_id()
764 	struct snd_kcontrol *kctl;  in snd_ctl_rename_id()  local
768 	kctl = snd_ctl_find_id_locked(card, src_id);  in snd_ctl_rename_id()
769 	if (kctl == NULL) {  in snd_ctl_rename_id()
773 	saved_numid = kctl->id.numid;  in snd_ctl_rename_id()
774 	remove_hash_entries(card, kctl);  in snd_ctl_rename_id()
775 	kctl->id = *dst_id;  in snd_ctl_rename_id()
776 	kctl->id.numid = saved_numid;  in snd_ctl_rename_id()
777 	add_hash_entries(card, kctl);  in snd_ctl_rename_id()
793 void snd_ctl_rename(struct snd_card *card, struct snd_kcontrol *kctl,  in snd_ctl_rename()  argument
797 	remove_hash_entries(card, kctl);  in snd_ctl_rename()
799 	if (strscpy(kctl->id.name, name, sizeof(kctl->id.name)) < 0)  in snd_ctl_rename()
801 			name, kctl->id.name);  in snd_ctl_rename()
803 	add_hash_entries(card, kctl);  in snd_ctl_rename()
812 	struct snd_kcontrol *kctl;  in snd_ctl_find_numid_slow()  local
814 	list_for_each_entry(kctl, &card->controls, list) {  in snd_ctl_find_numid_slow()
815 		if (kctl->id.numid <= numid && kctl->id.numid + kctl->count > numid)  in snd_ctl_find_numid_slow()
816 			return kctl;  in snd_ctl_find_numid_slow()
862 	struct snd_kcontrol *kctl;  in snd_ctl_find_numid()  local
865 	kctl = snd_ctl_find_numid_locked(card, numid);  in snd_ctl_find_numid()
867 	return kctl;  in snd_ctl_find_numid()
886 	struct snd_kcontrol *kctl;  in snd_ctl_find_id_locked()  local
894 	kctl = xa_load(&card->ctl_hash, get_ctl_id_hash(id));  in snd_ctl_find_id_locked()
895 	if (kctl && elem_id_matches(kctl, id))  in snd_ctl_find_id_locked()
896 		return kctl;  in snd_ctl_find_id_locked()
901 	list_for_each_entry(kctl, &card->controls, list)  in snd_ctl_find_id_locked()
902 		if (elem_id_matches(kctl, id))  in snd_ctl_find_id_locked()
903 			return kctl;  in snd_ctl_find_id_locked()
923 	struct snd_kcontrol *kctl;  in snd_ctl_find_id()  local
926 	kctl = snd_ctl_find_id_locked(card, id);  in snd_ctl_find_id()
928 	return kctl;  in snd_ctl_find_id()
960 	struct snd_kcontrol *kctl;  in snd_ctl_elem_list()  local
972 		list_for_each_entry(kctl, &card->controls, list) {  in snd_ctl_elem_list()
973 			if (offset >= kctl->count) {  in snd_ctl_elem_list()
974 				offset -= kctl->count;  in snd_ctl_elem_list()
977 			for (jidx = offset; jidx < kctl->count; jidx++) {  in snd_ctl_elem_list()
978 				snd_ctl_build_ioff(&id, kctl, jidx);  in snd_ctl_elem_list()
1200 			       struct snd_kcontrol *kctl,  in __snd_ctl_elem_info()  argument
1213 		result = kctl->info(kctl, info);  in __snd_ctl_elem_info()
1217 		index_offset = snd_ctl_get_ioff(kctl, &info->id);  in __snd_ctl_elem_info()
1218 		vd = &kctl->vd[index_offset];  in __snd_ctl_elem_info()
1219 		snd_ctl_build_ioff(&info->id, kctl, index_offset);  in __snd_ctl_elem_info()
1240 	struct snd_kcontrol *kctl;  in snd_ctl_elem_info()  local
1244 	kctl = snd_ctl_find_id_locked(card, &info->id);  in snd_ctl_elem_info()
1245 	if (kctl == NULL)  in snd_ctl_elem_info()
1248 		result = __snd_ctl_elem_info(card, kctl, info, ctl);  in snd_ctl_elem_info()
1275 	struct snd_kcontrol *kctl;  in snd_ctl_elem_read()  local
1283 	kctl = snd_ctl_find_id_locked(card, &control->id);  in snd_ctl_elem_read()
1284 	if (kctl == NULL) {  in snd_ctl_elem_read()
1289 	index_offset = snd_ctl_get_ioff(kctl, &control->id);  in snd_ctl_elem_read()
1290 	vd = &kctl->vd[index_offset];  in snd_ctl_elem_read()
1291 	if (!(vd->access & SNDRV_CTL_ELEM_ACCESS_READ) || kctl->get == NULL) {  in snd_ctl_elem_read()
1296 	snd_ctl_build_ioff(&control->id, kctl, index_offset);  in snd_ctl_elem_read()
1302 	ret = __snd_ctl_elem_info(card, kctl, &info, NULL);  in snd_ctl_elem_read()
1311 		ret = kctl->get(kctl, control);  in snd_ctl_elem_read()
1354 	struct snd_kcontrol *kctl;  in snd_ctl_elem_write()  local
1360 	kctl = snd_ctl_find_id_locked(card, &control->id);  in snd_ctl_elem_write()
1361 	if (kctl == NULL) {  in snd_ctl_elem_write()
1366 	index_offset = snd_ctl_get_ioff(kctl, &control->id);  in snd_ctl_elem_write()
1367 	vd = &kctl->vd[index_offset];  in snd_ctl_elem_write()
1368 	if (!(vd->access & SNDRV_CTL_ELEM_ACCESS_WRITE) || kctl->put == NULL ||  in snd_ctl_elem_write()
1374 	snd_ctl_build_ioff(&control->id, kctl, index_offset);  in snd_ctl_elem_write()
1382 		result = __snd_ctl_elem_info(card, kctl, &info, NULL);  in snd_ctl_elem_write()
1388 		result = kctl->put(kctl, control);  in snd_ctl_elem_write()
1397 		snd_ctl_notify_one(card, SNDRV_CTL_EVENT_MASK_VALUE, kctl, index_offset);  in snd_ctl_elem_write()
1434 	struct snd_kcontrol *kctl;  in snd_ctl_elem_lock()  local
1441 	kctl = snd_ctl_find_id_locked(card, &id);  in snd_ctl_elem_lock()
1442 	if (kctl == NULL) {  in snd_ctl_elem_lock()
1445 		vd = &kctl->vd[snd_ctl_get_ioff(kctl, &id)];  in snd_ctl_elem_lock()
1462 	struct snd_kcontrol *kctl;  in snd_ctl_elem_unlock()  local
1469 	kctl = snd_ctl_find_id_locked(card, &id);  in snd_ctl_elem_unlock()
1470 	if (kctl == NULL) {  in snd_ctl_elem_unlock()
1473 		vd = &kctl->vd[snd_ctl_get_ioff(kctl, &id)];  in snd_ctl_elem_unlock()
1573 static int replace_user_tlv(struct snd_kcontrol *kctl, unsigned int __user *buf,  in replace_user_tlv()  argument
1576 	struct user_element *ue = kctl->private_data;  in replace_user_tlv()
1605 		for (i = 0; i < kctl->count; ++i)  in replace_user_tlv()
1606 			kctl->vd[i].access |= SNDRV_CTL_ELEM_ACCESS_TLV_READ;  in replace_user_tlv()
1620 	for (i = 0; i < kctl->count; ++i)  in replace_user_tlv()
1621 		snd_ctl_notify_one(ue->card, mask, kctl, i);  in replace_user_tlv()
1626 static int read_user_tlv(struct snd_kcontrol *kctl, unsigned int __user *buf,  in read_user_tlv()  argument
1629 	struct user_element *ue = kctl->private_data;  in read_user_tlv()
1643 static int snd_ctl_elem_user_tlv(struct snd_kcontrol *kctl, int op_flag,  in snd_ctl_elem_user_tlv()  argument
1647 		return replace_user_tlv(kctl, buf, size);  in snd_ctl_elem_user_tlv()
1649 		return read_user_tlv(kctl, buf, size);  in snd_ctl_elem_user_tlv()
1716 	struct snd_kcontrol *kctl;  in snd_ctl_elem_add()  local
1782 	err = snd_ctl_new(&kctl, count, access, file);  in snd_ctl_elem_add()
1785 	memcpy(&kctl->id, &info->id, sizeof(kctl->id));  in snd_ctl_elem_add()
1788 		kfree(kctl);  in snd_ctl_elem_add()
1792 	kctl->private_data = ue;  in snd_ctl_elem_add()
1793 	kctl->private_free = snd_ctl_elem_user_free;  in snd_ctl_elem_add()
1807 			snd_ctl_free_one(kctl);  in snd_ctl_elem_add()
1814 		kctl->info = snd_ctl_elem_user_enum_info;  in snd_ctl_elem_add()
1816 		kctl->info = snd_ctl_elem_user_info;  in snd_ctl_elem_add()
1818 		kctl->get = snd_ctl_elem_user_get;  in snd_ctl_elem_add()
1820 		kctl->put = snd_ctl_elem_user_put;  in snd_ctl_elem_add()
1822 		kctl->tlv.c = snd_ctl_elem_user_tlv;  in snd_ctl_elem_add()
1825 	err = __snd_ctl_add_replace(card, kctl, CTL_ADD_EXCLUSIVE);  in snd_ctl_elem_add()
1827 		snd_ctl_free_one(kctl);  in snd_ctl_elem_add()
1830 	offset = snd_ctl_get_ioff(kctl, &info->id);  in snd_ctl_elem_add()
1831 	snd_ctl_build_ioff(&info->id, kctl, offset);  in snd_ctl_elem_add()
1895 			    struct snd_kcontrol *kctl,  in call_tlv_handler()  argument
1907 	struct snd_kcontrol_volatile *vd = &kctl->vd[snd_ctl_get_ioff(kctl, id)];  in call_tlv_handler()
1918 	if (kctl->tlv.c == NULL)  in call_tlv_handler()
1928 		ret = kctl->tlv.c(kctl, op_flag, size, buf);  in call_tlv_handler()
1933 static int read_tlv_buf(struct snd_kcontrol *kctl, struct snd_ctl_elem_id *id,  in read_tlv_buf()  argument
1936 	struct snd_kcontrol_volatile *vd = &kctl->vd[snd_ctl_get_ioff(kctl, id)];  in read_tlv_buf()
1942 	if (kctl->tlv.p == NULL)  in read_tlv_buf()
1945 	len = sizeof(unsigned int) * 2 + kctl->tlv.p[1];  in read_tlv_buf()
1949 	if (copy_to_user(buf, kctl->tlv.p, len))  in read_tlv_buf()
1962 	struct snd_kcontrol *kctl;  in snd_ctl_tlv_ioctl()  local
1981 	kctl = snd_ctl_find_numid_locked(file->card, header.numid);  in snd_ctl_tlv_ioctl()
1982 	if (kctl == NULL)  in snd_ctl_tlv_ioctl()
1986 	id = kctl->id;  in snd_ctl_tlv_ioctl()
1987 	snd_ctl_build_ioff(&id, kctl, header.numid - id.numid);  in snd_ctl_tlv_ioctl()
1988 	vd = &kctl->vd[snd_ctl_get_ioff(kctl, &id)];  in snd_ctl_tlv_ioctl()
1991 		return call_tlv_handler(file, op_flag, kctl, &id, container,  in snd_ctl_tlv_ioctl()
1995 			return read_tlv_buf(kctl, &id, container,  in snd_ctl_tlv_ioctl()
2261 	struct snd_ctl_file *kctl;  in snd_ctl_get_preferred_subdevice()  local
2266 	list_for_each_entry(kctl, &card->ctl_files, list) {  in snd_ctl_get_preferred_subdevice()
2267 		if (kctl->pid == task_pid(current)) {  in snd_ctl_get_preferred_subdevice()
2268 			subdevice = kctl->preferred_subdevice[type];  in snd_ctl_get_preferred_subdevice()