[ALSA] alsa core: convert to list_for_each_entry*

This patch converts most uses of list_for_each to list_for_each_entry all
across alsa. In some place apparently an item can be on a list with
different pointers so of course that isn't compatible with list_for_each, I
therefore didn't touch those places.

Signed-off-by: Johannes Berg <[e-mail]>
Signed-off-by: Takashi Iwai <[e-mail]>
Signed-off-by: Jaroslav Kysela <[e-mail]>

sound/core/control.c

···
 static int snd_ctl_release(struct inode *inode, struct file *file)
 {
 	unsigned long flags;
-	struct list_head *list;
 	struct snd_card *card;
 	struct snd_ctl_file *ctl;
 	struct snd_kcontrol *control;
···
 	list_del(&ctl->list);
 	write_unlock_irqrestore(&card->ctl_files_rwlock, flags);
 	down_write(&card->controls_rwsem);
-	list_for_each(list, &card->controls) {
-		control = snd_kcontrol(list);
+	list_for_each_entry(control, &card->controls, list)
 		for (idx = 0; idx < control->count; idx++)
 			if (control->vd[idx].owner == ctl)
 				control->vd[idx].owner = NULL;
-	}
 	up_write(&card->controls_rwsem);
 	snd_ctl_empty_read_queue(ctl);
 	kfree(ctl);
···
 		    struct snd_ctl_elem_id *id)
 {
 	unsigned long flags;
-	struct list_head *flist;
 	struct snd_ctl_file *ctl;
 	struct snd_kctl_event *ev;
 	
···
 #if defined(CONFIG_SND_MIXER_OSS) || defined(CONFIG_SND_MIXER_OSS_MODULE)
 	card->mixer_oss_change_count++;
 #endif
-	list_for_each(flist, &card->ctl_files) {
-		struct list_head *elist;
-		ctl = snd_ctl_file(flist);
+	list_for_each_entry(ctl, &card->ctl_files, list) {
 		if (!ctl->subscribed)
 			continue;
 		spin_lock_irqsave(&ctl->read_lock, flags);
-		list_for_each(elist, &ctl->events) {
-			ev = snd_kctl_event(elist);
+		list_for_each_entry(ev, &ctl->events, list) {
 			if (ev->id.numid == id->numid) {
 				ev->mask |= mask;
 				goto _found;
···
 static unsigned int snd_ctl_hole_check(struct snd_card *card,
 				       unsigned int count)
 {
-	struct list_head *list;
 	struct snd_kcontrol *kctl;
 
-	list_for_each(list, &card->controls) {
-		kctl = snd_kcontrol(list);
+	list_for_each_entry(kctl, &card->controls, list) {
 		if ((kctl->id.numid <= card->last_numid &&
 		     kctl->id.numid + kctl->count > card->last_numid) ||
 		    (kctl->id.numid <= card->last_numid + count - 1 &&
···
  */
 struct snd_kcontrol *snd_ctl_find_numid(struct snd_card *card, unsigned int numid)
 {
-	struct list_head *list;
 	struct snd_kcontrol *kctl;
 
 	snd_assert(card != NULL && numid != 0, return NULL);
-	list_for_each(list, &card->controls) {
-		kctl = snd_kcontrol(list);
+	list_for_each_entry(kctl, &card->controls, list) {
 		if (kctl->id.numid <= numid && kctl->id.numid + kctl->count > numid)
 			return kctl;
 	}
···
 struct snd_kcontrol *snd_ctl_find_id(struct snd_card *card,
 				     struct snd_ctl_elem_id *id)
 {
-	struct list_head *list;
 	struct snd_kcontrol *kctl;
 
 	snd_assert(card != NULL && id != NULL, return NULL);
 	if (id->numid != 0)
 		return snd_ctl_find_numid(card, id->numid);
-	list_for_each(list, &card->controls) {
-		kctl = snd_kcontrol(list);
+	list_for_each_entry(kctl, &card->controls, list) {
 		if (kctl->id.iface != id->iface)
 			continue;
 		if (kctl->id.device != id->device)
···
 {
 	struct snd_ctl_file *ctl;
 	struct snd_card *card;
-	struct list_head *list;
 	struct snd_kctl_ioctl *p;
 	void __user *argp = (void __user *)arg;
 	int __user *ip = argp;
···
 #endif
 	}
 	down_read(&snd_ioctl_rwsem);
-	list_for_each(list, &snd_control_ioctls) {
-		p = list_entry(list, struct snd_kctl_ioctl, list);
+	list_for_each_entry(p, &snd_control_ioctls, list) {
 		err = p->fioctl(card, ctl, cmd, arg);
 		if (err != -ENOIOCTLCMD) {
 			up_read(&snd_ioctl_rwsem);
···
 static int _snd_ctl_unregister_ioctl(snd_kctl_ioctl_func_t fcn,
 				     struct list_head *lists)
 {
-	struct list_head *list;
 	struct snd_kctl_ioctl *p;
 
 	snd_assert(fcn != NULL, return -EINVAL);
 	down_write(&snd_ioctl_rwsem);
-	list_for_each(list, lists) {
-		p = list_entry(list, struct snd_kctl_ioctl, list);
+	list_for_each_entry(p, lists, list) {
 		if (p->fioctl == fcn) {
 			list_del(&p->list);
 			up_write(&snd_ioctl_rwsem);
···
 static int snd_ctl_dev_disconnect(struct snd_device *device)
 {
 	struct snd_card *card = device->device_data;
-	struct list_head *flist;
 	struct snd_ctl_file *ctl;
 	int err, cardnum;
 
···
 	snd_assert(cardnum >= 0 && cardnum < SNDRV_CARDS, return -ENXIO);
 
 	down_read(&card->controls_rwsem);
-	list_for_each(flist, &card->ctl_files) {
-		ctl = snd_ctl_file(flist);
+	list_for_each_entry(ctl, &card->ctl_files, list) {
 		wake_up(&ctl->change_sleep);
 		kill_fasync(&ctl->fasync, SIGIO, POLL_ERR);
 	}

sound/core/control_compat.c

···
 static inline long snd_ctl_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg)
 {
 	struct snd_ctl_file *ctl;
-	struct list_head *list;
+	struct snd_kctl_ioctl *p;
 	void __user *argp = compat_ptr(arg);
 	int err;
 
···
 	}
 
 	down_read(&snd_ioctl_rwsem);
-	list_for_each(list, &snd_control_compat_ioctls) {
-		struct snd_kctl_ioctl *p = list_entry(list, struct snd_kctl_ioctl, list);
+	list_for_each_entry(p, &snd_control_compat_ioctls, list) {
 		if (p->fioctl) {
 			err = p->fioctl(ctl->card, ctl, cmd, arg);
 			if (err != -ENOIOCTLCMD) {

sound/core/device.c

···
  */
 int snd_device_free(struct snd_card *card, void *device_data)
 {
-	struct list_head *list;
 	struct snd_device *dev;
 	
 	snd_assert(card != NULL, return -ENXIO);
 	snd_assert(device_data != NULL, return -ENXIO);
-	list_for_each(list, &card->devices) {
-		dev = snd_device(list);
+	list_for_each_entry(dev, &card->devices, list) {
 		if (dev->device_data != device_data)
 			continue;
 		/* unlink */
···
  */
 int snd_device_disconnect(struct snd_card *card, void *device_data)
 {
-	struct list_head *list;
 	struct snd_device *dev;
 
 	snd_assert(card != NULL, return -ENXIO);
 	snd_assert(device_data != NULL, return -ENXIO);
-	list_for_each(list, &card->devices) {
-		dev = snd_device(list);
+	list_for_each_entry(dev, &card->devices, list) {
 		if (dev->device_data != device_data)
 			continue;
 		if (dev->state == SNDRV_DEV_REGISTERED &&
···
  */
 int snd_device_register(struct snd_card *card, void *device_data)
 {
-	struct list_head *list;
 	struct snd_device *dev;
 	int err;
 
 	snd_assert(card != NULL, return -ENXIO);
 	snd_assert(device_data != NULL, return -ENXIO);
-	list_for_each(list, &card->devices) {
-		dev = snd_device(list);
+	list_for_each_entry(dev, &card->devices, list) {
 		if (dev->device_data != device_data)
 			continue;
 		if (dev->state == SNDRV_DEV_BUILD && dev->ops->dev_register) {
···
  */
 int snd_device_register_all(struct snd_card *card)
 {
-	struct list_head *list;
 	struct snd_device *dev;
 	int err;
 	
 	snd_assert(card != NULL, return -ENXIO);
-	list_for_each(list, &card->devices) {
-		dev = snd_device(list);
+	list_for_each_entry(dev, &card->devices, list) {
 		if (dev->state == SNDRV_DEV_BUILD && dev->ops->dev_register) {
 			if ((err = dev->ops->dev_register(dev)) < 0)
 				return err;
···
 int snd_device_disconnect_all(struct snd_card *card)
 {
 	struct snd_device *dev;
-	struct list_head *list;
 	int err = 0;
 
 	snd_assert(card != NULL, return -ENXIO);
-	list_for_each(list, &card->devices) {
-		dev = snd_device(list);
+	list_for_each_entry(dev, &card->devices, list) {
 		if (snd_device_disconnect(card, dev->device_data) < 0)
 			err = -ENXIO;
 	}
···
 int snd_device_free_all(struct snd_card *card, snd_device_cmd_t cmd)
 {
 	struct snd_device *dev;
-	struct list_head *list;
 	int err;
 	unsigned int range_low, range_high;
 
···
 	range_low = cmd * SNDRV_DEV_TYPE_RANGE_SIZE;
 	range_high = range_low + SNDRV_DEV_TYPE_RANGE_SIZE - 1;
       __again:
-	list_for_each(list, &card->devices) {
-		dev = snd_device(list);		
+	list_for_each_entry(dev, &card->devices, list) {
 		if (dev->type >= range_low && dev->type <= range_high) {
 			if ((err = snd_device_free(card, dev->device_data)) < 0)
 				return err;

sound/core/hwdep.c

···
 
 static struct snd_hwdep *snd_hwdep_search(struct snd_card *card, int device)
 {
-	struct list_head *p;
 	struct snd_hwdep *hwdep;
 
-	list_for_each(p, &snd_hwdep_devices) {
-		hwdep = list_entry(p, struct snd_hwdep, list);
+	list_for_each_entry(hwdep, &snd_hwdep_devices, list)
 		if (hwdep->card == card && hwdep->device == device)
 			return hwdep;
-	}
 	return NULL;
 }
 
···
 static void snd_hwdep_proc_read(struct snd_info_entry *entry,
 				struct snd_info_buffer *buffer)
 {
-	struct list_head *p;
 	struct snd_hwdep *hwdep;
 
 	mutex_lock(&register_mutex);
-	list_for_each(p, &snd_hwdep_devices) {
-		hwdep = list_entry(p, struct snd_hwdep, list);
+	list_for_each_entry(hwdep, &snd_hwdep_devices, list)
 		snd_iprintf(buffer, "%02i-%02i: %s\n",
 			    hwdep->card->number, hwdep->device, hwdep->name);
-	}
 	mutex_unlock(&register_mutex);
 }
 

sound/core/memalloc.c

···
  */
 size_t snd_dma_get_reserved_buf(struct snd_dma_buffer *dmab, unsigned int id)
 {
-	struct list_head *p;
 	struct snd_mem_list *mem;
 
 	snd_assert(dmab, return 0);
 
 	mutex_lock(&list_mutex);
-	list_for_each(p, &mem_list_head) {
-		mem = list_entry(p, struct snd_mem_list, list);
+	list_for_each_entry(mem, &mem_list_head, list) {
 		if (mem->id == id &&
 		    (mem->buffer.dev.dev == NULL || dmab->dev.dev == NULL ||
 		     ! memcmp(&mem->buffer.dev, &dmab->dev, sizeof(dmab->dev)))) {
 			struct device *dev = dmab->dev.dev;
-			list_del(p);
+			list_del(&mem->list);
 			*dmab = mem->buffer;
 			if (dmab->dev.dev == NULL)
 				dmab->dev.dev = dev;
···
 {
 	int len = 0;
 	long pages = snd_allocated_pages >> (PAGE_SHIFT-12);
-	struct list_head *p;
 	struct snd_mem_list *mem;
 	int devno;
 	static char *types[] = { "UNKNOWN", "CONT", "DEV", "DEV-SG", "SBUS" };
···
 			"pages  : %li bytes (%li pages per %likB)\n",
 			pages * PAGE_SIZE, pages, PAGE_SIZE / 1024);
 	devno = 0;
-	list_for_each(p, &mem_list_head) {
-		mem = list_entry(p, struct snd_mem_list, list);
+	list_for_each_entry(mem, &mem_list_head, list) {
 		devno++;
 		len += snprintf(page + len, count - len,
 				"buffer %d : ID %08x : type %s\n",

sound/core/pcm.c

···
 
 static struct snd_pcm *snd_pcm_search(struct snd_card *card, int device)
 {
-	struct list_head *p;
 	struct snd_pcm *pcm;
 
-	list_for_each(p, &snd_pcm_devices) {
-		pcm = list_entry(p, struct snd_pcm, list);
+	list_for_each_entry(pcm, &snd_pcm_devices, list) {
 		if (pcm->card == card && pcm->device == device)
 			return pcm;
 	}
···
 	struct snd_pcm_runtime *runtime;
 	struct snd_ctl_file *kctl;
 	struct snd_card *card;
-	struct list_head *list;
 	int prefer_subdevice = -1;
 	size_t size;
 
···
 
 	card = pcm->card;
 	down_read(&card->controls_rwsem);
-	list_for_each(list, &card->ctl_files) {
-		kctl = snd_ctl_file(list);
+	list_for_each_entry(kctl, &card->ctl_files, list) {
 		if (kctl->pid == current->pid) {
 			prefer_subdevice = kctl->prefer_pcm_subdevice;
 			if (prefer_subdevice != -1)
···
 {
 	int cidx, err;
 	struct snd_pcm_substream *substream;
-	struct list_head *list;
+	struct snd_pcm_notify *notify;
 	char str[16];
 	struct snd_pcm *pcm = device->device_data;
 	struct device *dev;
···
 		for (substream = pcm->streams[cidx].substream; substream; substream = substream->next)
 			snd_pcm_timer_init(substream);
 	}
-	list_for_each(list, &snd_pcm_notify_list) {
-		struct snd_pcm_notify *notify;
-		notify = list_entry(list, struct snd_pcm_notify, list);
+
+	list_for_each_entry(notify, &snd_pcm_notify_list, list)
 		notify->n_register(pcm);
-	}
+
 	mutex_unlock(&register_mutex);
 	return 0;
 }
···
 
 int snd_pcm_notify(struct snd_pcm_notify *notify, int nfree)
 {
-	struct list_head *p;
+	struct snd_pcm *pcm;
 
 	snd_assert(notify != NULL &&
 		   notify->n_register != NULL &&
···
 	mutex_lock(&register_mutex);
 	if (nfree) {
 		list_del(&notify->list);
-		list_for_each(p, &snd_pcm_devices)
-			notify->n_unregister(list_entry(p,
-							struct snd_pcm, list));
+		list_for_each_entry(pcm, &snd_pcm_devices, list)
+			notify->n_unregister(pcm);
 	} else {
 		list_add_tail(&notify->list, &snd_pcm_notify_list);
-		list_for_each(p, &snd_pcm_devices)
-			notify->n_register(list_entry(p, struct snd_pcm, list));
+		list_for_each_entry(pcm, &snd_pcm_devices, list)
+			notify->n_register(pcm);
 	}
 	mutex_unlock(&register_mutex);
 	return 0;
···
 static void snd_pcm_proc_read(struct snd_info_entry *entry,
 			      struct snd_info_buffer *buffer)
 {
-	struct list_head *p;
 	struct snd_pcm *pcm;
 
 	mutex_lock(&register_mutex);
-	list_for_each(p, &snd_pcm_devices) {
-		pcm = list_entry(p, struct snd_pcm, list);
+	list_for_each_entry(pcm, &snd_pcm_devices, list) {
 		snd_iprintf(buffer, "%02i-%02i: %s : %s",
 			    pcm->card->number, pcm->device, pcm->id, pcm->name);
 		if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream)

sound/core/rawmidi.c

···
 
 static struct snd_rawmidi *snd_rawmidi_search(struct snd_card *card, int device)
 {
-	struct list_head *p;
 	struct snd_rawmidi *rawmidi;
 
-	list_for_each(p, &snd_rawmidi_devices) {
-		rawmidi = list_entry(p, struct snd_rawmidi, list);
+	list_for_each_entry(rawmidi, &snd_rawmidi_devices, list)
 		if (rawmidi->card == card && rawmidi->device == device)
 			return rawmidi;
-	}
 	return NULL;
 }
 
···
 	struct snd_rawmidi *rmidi;
 	struct snd_rawmidi_file *rawmidi_file;
 	wait_queue_t wait;
-	struct list_head *list;
 	struct snd_ctl_file *kctl;
 
 	if (maj == snd_major) {
···
 	while (1) {
 		subdevice = -1;
 		down_read(&card->controls_rwsem);
-		list_for_each(list, &card->ctl_files) {
-			kctl = snd_ctl_file(list);
+		list_for_each_entry(kctl, &card->ctl_files, list) {
 			if (kctl->pid == current->pid) {
 				subdevice = kctl->prefer_rawmidi_subdevice;
 				if (subdevice != -1)
···
 	struct snd_rawmidi *rmidi;
 	struct snd_rawmidi_str *pstr;
 	struct snd_rawmidi_substream *substream;
-	struct list_head *list;
 
 	mutex_lock(&register_mutex);
 	rmidi = snd_rawmidi_search(card, info->device);
···
 		return -ENOENT;
 	if (info->subdevice >= pstr->substream_count)
 		return -ENXIO;
-	list_for_each(list, &pstr->substreams) {
-		substream = list_entry(list, struct snd_rawmidi_substream, list);
+	list_for_each_entry(substream, &pstr->substreams, list) {
 		if ((unsigned int)substream->number == info->subdevice)
 			return snd_rawmidi_info(substream, info);
 	}
···
 	struct snd_rawmidi *rmidi;
 	struct snd_rawmidi_substream *substream;
 	struct snd_rawmidi_runtime *runtime;
-	struct list_head *list;
 
 	rmidi = entry->private_data;
 	snd_iprintf(buffer, "%s\n\n", rmidi->name);
 	mutex_lock(&rmidi->open_mutex);
 	if (rmidi->info_flags & SNDRV_RAWMIDI_INFO_OUTPUT) {
-		list_for_each(list, &rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT].substreams) {
-			substream = list_entry(list, struct snd_rawmidi_substream, list);
+		list_for_each_entry(substream,
+				    &rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT].substreams,
+				    list) {
 			snd_iprintf(buffer,
 				    "Output %d\n"
 				    "  Tx bytes     : %lu\n",
···
 		}
 	}
 	if (rmidi->info_flags & SNDRV_RAWMIDI_INFO_INPUT) {
-		list_for_each(list, &rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT].substreams) {
-			substream = list_entry(list, struct snd_rawmidi_substream, list);
+		list_for_each_entry(substream,
+				    &rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT].substreams,
+				    list) {
 			snd_iprintf(buffer,
 				    "Input %d\n"
 				    "  Rx bytes     : %lu\n",
···
 void snd_rawmidi_set_ops(struct snd_rawmidi *rmidi, int stream,
 			 struct snd_rawmidi_ops *ops)
 {
-	struct list_head *list;
 	struct snd_rawmidi_substream *substream;
 	
-	list_for_each(list, &rmidi->streams[stream].substreams) {
-		substream = list_entry(list, struct snd_rawmidi_substream, list);
+	list_for_each_entry(substream, &rmidi->streams[stream].substreams, list)
 		substream->ops = ops;
-	}
 }
 
 /*

sound/core/seq/seq_clientmgr.c

···
 	int err = 0, num_ev = 0;
 	struct snd_seq_event event_saved;
 	struct snd_seq_client_port *src_port;
-	struct list_head *p;
 	struct snd_seq_port_subs_info *grp;
 
 	src_port = snd_seq_port_use_ptr(client, event->source.port);
···
 		read_lock(&grp->list_lock);
 	else
 		down_read(&grp->list_mutex);
-	list_for_each(p, &grp->list_head) {
-		subs = list_entry(p, struct snd_seq_subscribers, src_list);
+	list_for_each_entry(subs, &grp->list_head, src_list) {
 		event->dest = subs->info.dest;
 		if (subs->info.flags & SNDRV_SEQ_PORT_SUBS_TIMESTAMP)
 			/* convert time according to flag with subscription */
···
 {
 	int num_ev = 0, err = 0;
 	struct snd_seq_client *dest_client;
-	struct list_head *p;
+	struct snd_seq_client_port *port;
 
 	dest_client = get_event_dest_client(event, SNDRV_SEQ_FILTER_BROADCAST);
 	if (dest_client == NULL)
 		return 0; /* no matching destination */
 
 	read_lock(&dest_client->ports_lock);
-	list_for_each(p, &dest_client->ports_list_head) {
-		struct snd_seq_client_port *port = list_entry(p, struct snd_seq_client_port, list);
+	list_for_each_entry(port, &dest_client->ports_list_head, list) {
 		event->dest.port = port->addr.port;
 		/* pass NULL as source client to avoid error bounce */
 		err = snd_seq_deliver_single_event(NULL, event,
···
 static void snd_seq_info_dump_ports(struct snd_info_buffer *buffer,
 				    struct snd_seq_client *client)
 {
-	struct list_head *l;
+	struct snd_seq_client_port *p;
 
 	mutex_lock(&client->ports_mutex);
-	list_for_each(l, &client->ports_list_head) {
-		struct snd_seq_client_port *p = list_entry(l, struct snd_seq_client_port, list);
+	list_for_each_entry(p, &client->ports_list_head, list) {
 		snd_iprintf(buffer, "  Port %3d : \"%s\" (%c%c%c%c)\n",
 			    p->addr.port, p->name,
 			    FLAG_PERM_RD(p->capability),

sound/core/seq/seq_device.c

···
 static void snd_seq_device_info(struct snd_info_entry *entry,
 				struct snd_info_buffer *buffer)
 {
-	struct list_head *head;
+	struct ops_list *ops;
 
 	mutex_lock(&ops_mutex);
-	list_for_each(head, &opslist) {
-		struct ops_list *ops = list_entry(head, struct ops_list, list);
+	list_for_each_entry(ops, &opslist, list) {
 		snd_iprintf(buffer, "snd-%s%s%s%s,%d\n",
 				ops->id,
 				ops->driver & DRIVER_LOADED ? ",loaded" : (ops->driver == DRIVER_EMPTY ? ",empty" : ""),
···
 void snd_seq_device_load_drivers(void)
 {
 #ifdef CONFIG_KMOD
-	struct list_head *head;
+	struct ops_list *ops;
 
 	/* Calling request_module during module_init()
 	 * may cause blocking.
···
 		return;
 
 	mutex_lock(&ops_mutex);
-	list_for_each(head, &opslist) {
-		struct ops_list *ops = list_entry(head, struct ops_list, list);
+	list_for_each_entry(ops, &opslist, list) {
 		if (! (ops->driver & DRIVER_LOADED) &&
 		    ! (ops->driver & DRIVER_REQUESTED)) {
 			ops->used++;
···
 int snd_seq_device_register_driver(char *id, struct snd_seq_dev_ops *entry,
 				   int argsize)
 {
-	struct list_head *head;
 	struct ops_list *ops;
+	struct snd_seq_device *dev;
 
 	if (id == NULL || entry == NULL ||
 	    entry->init_device == NULL || entry->free_device == NULL)
···
 	ops->argsize = argsize;
 
 	/* initialize existing devices if necessary */
-	list_for_each(head, &ops->dev_list) {
-		struct snd_seq_device *dev = list_entry(head, struct snd_seq_device, list);
+	list_for_each_entry(dev, &ops->dev_list, list) {
 		init_device(dev, ops);
 	}
 	mutex_unlock(&ops->reg_mutex);
···
  */
 int snd_seq_device_unregister_driver(char *id)
 {
-	struct list_head *head;
 	struct ops_list *ops;
+	struct snd_seq_device *dev;
 
 	ops = find_driver(id, 0);
 	if (ops == NULL)
···
 	/* close and release all devices associated with this driver */
 	mutex_lock(&ops->reg_mutex);
 	ops->driver |= DRIVER_LOCKED; /* do not remove this driver recursively */
-	list_for_each(head, &ops->dev_list) {
-		struct snd_seq_device *dev = list_entry(head, struct snd_seq_device, list);
+	list_for_each_entry(dev, &ops->dev_list, list) {
 		free_device(dev, ops);
 	}
 
···
  */
 static struct ops_list * find_driver(char *id, int create_if_empty)
 {
-	struct list_head *head;
+	struct ops_list *ops;
 
 	mutex_lock(&ops_mutex);
-	list_for_each(head, &opslist) {
-		struct ops_list *ops = list_entry(head, struct ops_list, list);
+	list_for_each_entry(ops, &opslist, list) {
 		if (strcmp(ops->id, id) == 0) {
 			ops->used++;
 			mutex_unlock(&ops_mutex);

sound/core/seq/seq_ports.c

···
 struct snd_seq_client_port *snd_seq_port_use_ptr(struct snd_seq_client *client,
 						 int num)
 {
-	struct list_head *p;
 	struct snd_seq_client_port *port;
 
 	if (client == NULL)
 		return NULL;
 	read_lock(&client->ports_lock);
-	list_for_each(p, &client->ports_list_head) {
-		port = list_entry(p, struct snd_seq_client_port, list);
+	list_for_each_entry(port, &client->ports_list_head, list) {
 		if (port->addr.port == num) {
 			if (port->closing)
 				break; /* deleting now */
···
 						       struct snd_seq_port_info *pinfo)
 {
 	int num;
-	struct list_head *p;
 	struct snd_seq_client_port *port, *found;
 
 	num = pinfo->addr.port;
 	found = NULL;
 	read_lock(&client->ports_lock);
-	list_for_each(p, &client->ports_list_head) {
-		port = list_entry(p, struct snd_seq_client_port, list);
+	list_for_each_entry(port, &client->ports_list_head, list) {
 		if (port->addr.port < num)
 			continue;
 		if (port->addr.port == num) {
···
 						int port)
 {
 	unsigned long flags;
-	struct snd_seq_client_port *new_port;
-	struct list_head *l;
+	struct snd_seq_client_port *new_port, *p;
 	int num = -1;
 	
 	/* sanity check */
···
 	num = port >= 0 ? port : 0;
 	mutex_lock(&client->ports_mutex);
 	write_lock_irqsave(&client->ports_lock, flags);
-	list_for_each(l, &client->ports_list_head) {
-		struct snd_seq_client_port *p = list_entry(l, struct snd_seq_client_port, list);
+	list_for_each_entry(p, &client->ports_list_head, list) {
 		if (p->addr.port > num)
 			break;
 		if (port < 0) /* auto-probe mode */
 			num = p->addr.port + 1;
 	}
 	/* insert the new port */
-	list_add_tail(&new_port->list, l);
+	list_add_tail(&new_port->list, &p->list);
 	client->num_ports++;
 	new_port->addr.port = num;	/* store the port number in the port */
 	write_unlock_irqrestore(&client->ports_lock, flags);
···
 int snd_seq_delete_port(struct snd_seq_client *client, int port)
 {
 	unsigned long flags;
-	struct list_head *l;
-	struct snd_seq_client_port *found = NULL;
+	struct snd_seq_client_port *found = NULL, *p;
 
 	mutex_lock(&client->ports_mutex);
 	write_lock_irqsave(&client->ports_lock, flags);
-	list_for_each(l, &client->ports_list_head) {
-		struct snd_seq_client_port *p = list_entry(l, struct snd_seq_client_port, list);
+	list_for_each_entry(p, &client->ports_list_head, list) {
 		if (p->addr.port == port) {
 			/* ok found.  delete from the list at first */
-			list_del(l);
+			list_del(&p->list);
 			client->num_ports--;
 			found = p;
 			break;
···
 int snd_seq_delete_all_ports(struct snd_seq_client *client)
 {
 	unsigned long flags;
-	struct list_head deleted_list, *p, *n;
+	struct list_head deleted_list;
+	struct snd_seq_client_port *port, *tmp;
 	
 	/* move the port list to deleted_list, and
 	 * clear the port list in the client data.
···
 	write_unlock_irqrestore(&client->ports_lock, flags);
 
 	/* remove each port in deleted_list */
-	list_for_each_safe(p, n, &deleted_list) {
-		struct snd_seq_client_port *port = list_entry(p, struct snd_seq_client_port, list);
-		list_del(p);
+	list_for_each_entry_safe(port, tmp, &deleted_list, list) {
+		list_del(&port->list);
 		snd_seq_system_client_ev_port_exit(port->addr.client, port->addr.port);
 		port_delete(client, port);
 	}
···
 {
 	struct snd_seq_port_subs_info *src = &src_port->c_src;
 	struct snd_seq_port_subs_info *dest = &dest_port->c_dest;
-	struct snd_seq_subscribers *subs;
-	struct list_head *p;
+	struct snd_seq_subscribers *subs, *s;
 	int err, src_called = 0;
 	unsigned long flags;
 	int exclusive;
···
 		if (src->exclusive || dest->exclusive)
 			goto __error;
 		/* check whether already exists */
-		list_for_each(p, &src->list_head) {
-			struct snd_seq_subscribers *s = list_entry(p, struct snd_seq_subscribers, src_list);
+		list_for_each_entry(s, &src->list_head, src_list) {
 			if (match_subs_info(info, &s->info))
 				goto __error;
 		}
-		list_for_each(p, &dest->list_head) {
-			struct snd_seq_subscribers *s = list_entry(p, struct snd_seq_subscribers, dest_list);
+		list_for_each_entry(s, &dest->list_head, dest_list) {
 			if (match_subs_info(info, &s->info))
 				goto __error;
 		}
···
 	struct snd_seq_port_subs_info *src = &src_port->c_src;
 	struct snd_seq_port_subs_info *dest = &dest_port->c_dest;
 	struct snd_seq_subscribers *subs;
-	struct list_head *p;
 	int err = -ENOENT;
 	unsigned long flags;
 
···
 	down_write_nested(&dest->list_mutex, SINGLE_DEPTH_NESTING);
 
 	/* look for the connection */
-	list_for_each(p, &src->list_head) {
-		subs = list_entry(p, struct snd_seq_subscribers, src_list);
+	list_for_each_entry(subs, &src->list_head, src_list) {
 		if (match_subs_info(info, &subs->info)) {
 			write_lock_irqsave(&src->list_lock, flags);
 			// write_lock(&dest->list_lock);  // no lock yet
···
 struct snd_seq_subscribers *snd_seq_port_get_subscription(struct snd_seq_port_subs_info *src_grp,
 							  struct snd_seq_addr *dest_addr)
 {
-	struct list_head *p;
 	struct snd_seq_subscribers *s, *found = NULL;
 
 	down_read(&src_grp->list_mutex);
-	list_for_each(p, &src_grp->list_head) {
-		s = list_entry(p, struct snd_seq_subscribers, src_list);
+	list_for_each_entry(s, &src_grp->list_head, src_list) {
 		if (addr_match(dest_addr, &s->info.dest)) {
 			found = s;
 			break;

sound/core/seq/seq_virmidi.c

···
 					 struct snd_seq_event *ev)
 {
 	struct snd_virmidi *vmidi;
-	struct list_head *list;
 	unsigned char msg[4];
 	int len;
 
 	read_lock(&rdev->filelist_lock);
-	list_for_each(list, &rdev->filelist) {
-		vmidi = list_entry(list, struct snd_virmidi, list);
+	list_for_each_entry(vmidi, &rdev->filelist, list) {
 		if (!vmidi->trigger)
 			continue;
 		if (ev->type == SNDRV_SEQ_EVENT_SYSEX) {

sound/core/timer.c

···
 static struct snd_timer *snd_timer_find(struct snd_timer_id *tid)
 {
 	struct snd_timer *timer = NULL;
-	struct list_head *p;
 
-	list_for_each(p, &snd_timer_list) {
-		timer = list_entry(p, struct snd_timer, device_list);
-
+	list_for_each_entry(timer, &snd_timer_list, device_list) {
 		if (timer->tmr_class != tid->dev_class)
 			continue;
 		if ((timer->tmr_class == SNDRV_TIMER_CLASS_CARD ||
···
 {
 	struct snd_timer *timer;
 	struct snd_timer_instance *master;
-	struct list_head *p, *q;
 
 	/* FIXME: it's really dumb to look up all entries.. */
-	list_for_each(p, &snd_timer_list) {
-		timer = list_entry(p, struct snd_timer, device_list);
-		list_for_each(q, &timer->open_list_head) {
-			master = list_entry(q, struct snd_timer_instance, open_list);
+	list_for_each_entry(timer, &snd_timer_list, device_list) {
+		list_for_each_entry(master, &timer->open_list_head, open_list) {
 			if (slave->slave_class == master->slave_class &&
 			    slave->slave_id == master->slave_id) {
 				list_del(&slave->open_list);
···
  */
 static void snd_timer_check_master(struct snd_timer_instance *master)
 {
-	struct snd_timer_instance *slave;
-	struct list_head *p, *n;
+	struct snd_timer_instance *slave, *tmp;
 
 	/* check all pending slaves */
-	list_for_each_safe(p, n, &snd_timer_slave_list) {
-		slave = list_entry(p, struct snd_timer_instance, open_list);
+	list_for_each_entry_safe(slave, tmp, &snd_timer_slave_list, open_list) {
 		if (slave->slave_class == master->slave_class &&
 		    slave->slave_id == master->slave_id) {
-			list_del(p);
-			list_add_tail(p, &master->slave_list_head);
+			list_move_tail(&slave->open_list, &master->slave_list_head);
 			spin_lock_irq(&slave_active_lock);
 			slave->master = master;
 			slave->timer = master->timer;
···
 int snd_timer_close(struct snd_timer_instance *timeri)
 {
 	struct snd_timer *timer = NULL;
-	struct list_head *p, *n;
-	struct snd_timer_instance *slave;
+	struct snd_timer_instance *slave, *tmp;
 
 	snd_assert(timeri != NULL, return -ENXIO);
 
···
 		    timer->hw.close)
 			timer->hw.close(timer);
 		/* remove slave links */
-		list_for_each_safe(p, n, &timeri->slave_list_head) {
-			slave = list_entry(p, struct snd_timer_instance, open_list);
+		list_for_each_entry_safe(slave, tmp, &timeri->slave_list_head,
+					 open_list) {
 			spin_lock_irq(&slave_active_lock);
 			_snd_timer_stop(slave, 1, SNDRV_TIMER_EVENT_RESOLUTION);
-			list_del(p);
-			list_add_tail(p, &snd_timer_slave_list);
+			list_move_tail(&slave->open_list, &snd_timer_slave_list);
 			slave->master = NULL;
 			slave->timer = NULL;
 			spin_unlock_irq(&slave_active_lock);
···
 	unsigned long flags;
 	unsigned long resolution = 0;
 	struct snd_timer_instance *ts;
-	struct list_head *n;
 	struct timespec tstamp;
 
 	getnstimeofday(&tstamp);
···
 	if (timer->hw.flags & SNDRV_TIMER_HW_SLAVE)
 		return;
 	spin_lock_irqsave(&timer->lock, flags);
-	list_for_each(n, &ti->slave_active_head) {
-		ts = list_entry(n, struct snd_timer_instance, active_list);
+	list_for_each_entry(ts, &ti->slave_active_head, active_list)
 		if (ts->ccallback)
 			ts->ccallback(ti, event + 100, &tstamp, resolution);
-	}
 	spin_unlock_irqrestore(&timer->lock, flags);
 }
 
···
 {
 	struct snd_timer_instance *ti;
 	unsigned long ticks = ~0UL;
-	struct list_head *p;
 
-	list_for_each(p, &timer->active_list_head) {
-		ti = list_entry(p, struct snd_timer_instance, active_list);
+	list_for_each_entry(ti, &timer->active_list_head, active_list) {
 		if (ti->flags & SNDRV_TIMER_IFLG_START) {
 			ti->flags &= ~SNDRV_TIMER_IFLG_START;
 			ti->flags |= SNDRV_TIMER_IFLG_RUNNING;
···
  */
 void snd_timer_interrupt(struct snd_timer * timer, unsigned long ticks_left)
 {
-	struct snd_timer_instance *ti, *ts;
+	struct snd_timer_instance *ti, *ts, *tmp;
 	unsigned long resolution, ticks;
-	struct list_head *p, *q, *n, *ack_list_head;
+	struct list_head *p, *ack_list_head;
 	unsigned long flags;
 	int use_tasklet = 0;
 
···
 		resolution = timer->hw.resolution;
 
 	/* loop for all active instances
-	 * Here we cannot use list_for_each because the active_list of a
+	 * Here we cannot use list_for_each_entry because the active_list of a
 	 * processed instance is relinked to done_list_head before the callback
 	 * is called.
 	 */
-	list_for_each_safe(p, n, &timer->active_list_head) {
-		ti = list_entry(p, struct snd_timer_instance, active_list);
+	list_for_each_entry_safe(ti, tmp, &timer->active_list_head,
+				 active_list) {
 		if (!(ti->flags & SNDRV_TIMER_IFLG_RUNNING))
 			continue;
 		ti->pticks += ticks_left;
···
 		} else {
 			ti->flags &= ~SNDRV_TIMER_IFLG_RUNNING;
 			if (--timer->running)
-				list_del(p);
+				list_del(&ti->active_list);
 		}
 		if ((timer->hw.flags & SNDRV_TIMER_HW_TASKLET) ||
 		    (ti->flags & SNDRV_TIMER_IFLG_FAST))
···
 			ack_list_head = &timer->sack_list_head;
 		if (list_empty(&ti->ack_list))
 			list_add_tail(&ti->ack_list, ack_list_head);
-		list_for_each(q, &ti->slave_active_head) {
-			ts = list_entry(q, struct snd_timer_instance, active_list);
+		list_for_each_entry(ts, &ti->slave_active_head, active_list) {
 			ts->pticks = ti->pticks;
 			ts->resolution = resolution;
 			if (list_empty(&ts->ack_list))
···
 {
 	struct snd_timer *timer = dev->device_data;
 	struct snd_timer *timer1;
-	struct list_head *p;
 
 	snd_assert(timer != NULL && timer->hw.start != NULL &&
 		   timer->hw.stop != NULL, return -ENXIO);
···
 	    	return -EINVAL;
 
 	mutex_lock(&register_mutex);
-	list_for_each(p, &snd_timer_list) {
-		timer1 = list_entry(p, struct snd_timer, device_list);
+	list_for_each_entry(timer1, &snd_timer_list, device_list) {
 		if (timer1->tmr_class > timer->tmr_class)
 			break;
 		if (timer1->tmr_class < timer->tmr_class)
···
 		mutex_unlock(&register_mutex);
 		return -EBUSY;
 	}
-	list_add_tail(&timer->device_list, p);
+	list_add_tail(&timer->device_list, &timer1->device_list);
 	mutex_unlock(&register_mutex);
 	return 0;
 }
···
 	unsigned long flags;
 	unsigned long resolution = 0;
 	struct snd_timer_instance *ti, *ts;
-	struct list_head *p, *n;
 
 	if (! (timer->hw.flags & SNDRV_TIMER_HW_SLAVE))
 		return;
···
 		else
 			resolution = timer->hw.resolution;
 	}
-	list_for_each(p, &timer->active_list_head) {
-		ti = list_entry(p, struct snd_timer_instance, active_list);
+	list_for_each_entry(ti, &timer->active_list_head, active_list) {
 		if (ti->ccallback)
 			ti->ccallback(ti, event, tstamp, resolution);
-		list_for_each(n, &ti->slave_active_head) {
-			ts = list_entry(n, struct snd_timer_instance, active_list);
+		list_for_each_entry(ts, &ti->slave_active_head, active_list)
 			if (ts->ccallback)
 				ts->ccallback(ts, event, tstamp, resolution);
-		}
 	}
 	spin_unlock_irqrestore(&timer->lock, flags);
 }
···
 {
 	struct snd_timer *timer;
 	struct snd_timer_instance *ti;
-	struct list_head *p, *q;
 
 	mutex_lock(&register_mutex);
-	list_for_each(p, &snd_timer_list) {
-		timer = list_entry(p, struct snd_timer, device_list);
+	list_for_each_entry(timer, &snd_timer_list, device_list) {
 		switch (timer->tmr_class) {
 		case SNDRV_TIMER_CLASS_GLOBAL:
 			snd_iprintf(buffer, "G%i: ", timer->tmr_device);
···
 		if (timer->hw.flags & SNDRV_TIMER_HW_SLAVE)
 			snd_iprintf(buffer, " SLAVE");
 		snd_iprintf(buffer, "\n");
-		list_for_each(q, &timer->open_list_head) {
-			ti = list_entry(q, struct snd_timer_instance, open_list);
+		list_for_each_entry(ti, &timer->open_list_head, open_list)
 			snd_iprintf(buffer, "  Client %s : %s\n",
 				    ti->owner ? ti->owner : "unknown",
 				    ti->flags & (SNDRV_TIMER_IFLG_START |
 						 SNDRV_TIMER_IFLG_RUNNING)
 				    ? "running" : "stopped");
-		}
 	}
 	mutex_unlock(&register_mutex);
 }