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Commit 55e77c06 authored by Stefan Richter's avatar Stefan Richter
Browse files

firewire: nosy: unroll some simple functions 



nosy_start/stop_snoop() and nosy_add/remove_client() are simple enough
to be inlined into their callers.

Signed-off-by: default avatarStefan Richter <stefanr@s5r6.in-berlin.de>
parent 685c3f80

drivers/firewire/nosy.c

+29 −46
Original line number Diff line number Diff line
@@ -260,68 +260,44 @@ set_phy_reg(struct pcilynx *lynx, int addr, int val) 
	return 0;

}



static void

nosy_start_snoop(struct client *client)

{

	spin_lock_irq(&client->lynx->client_list_lock);

	list_add_tail(&client->link, &client->lynx->client_list);

	spin_unlock_irq(&client->lynx->client_list_lock);

}



static void

nosy_stop_snoop(struct client *client)

{

	spin_lock_irq(&client->lynx->client_list_lock);

	list_del_init(&client->link);

	spin_unlock_irq(&client->lynx->client_list_lock);

}



static struct client *

nosy_add_client(struct pcilynx *lynx)

static int

nosy_open(struct inode *inode, struct file *file)

{

	int minor = iminor(inode);

	struct client *client;



	if (minor > MAX_MINORS || minors[minor] == NULL)

		return -ENODEV;



	client = kmalloc(sizeof *client, GFP_KERNEL);

	if (client == NULL)

		return -ENOMEM;



	client->tcode_mask = ~0;

	client->lynx = lynx;

	client->lynx = minors[minor];

	INIT_LIST_HEAD(&client->link);



	if (packet_buffer_init(&client->buffer, 128 * 1024) < 0) {

		kfree(client);

		debug("Failed to allocate packet buffer\n");

		return NULL;

	}



	return client;

}



static void

nosy_remove_client(struct client *client)

{

	nosy_stop_snoop(client);

	packet_buffer_destroy(&client->buffer);

	kfree(client);

		return -ENOMEM;

	}



static int

nosy_open(struct inode *inode, struct file *file)

{

	int minor = iminor(inode);



	if (minor > MAX_MINORS || minors[minor] == NULL)

		return -ENODEV;

	file->private_data = client;



	file->private_data = nosy_add_client(minors[minor]);

	if (file->private_data == NULL)

		return -ENOMEM;

	else

	return 0;

}



static int

nosy_release(struct inode *inode, struct file *file)

{

	nosy_remove_client(file->private_data);

	struct client *client = file->private_data;



	spin_lock_irq(&client->lynx->client_list_lock);

	list_del_init(&client->link);

	spin_unlock_irq(&client->lynx->client_list_lock);



	packet_buffer_destroy(&client->buffer);

	kfree(client);



	return 0;

}
@@ -367,17 +343,24 @@ nosy_ioctl(struct file *file, unsigned int cmd, unsigned long arg) 
			return 0;



	case NOSY_IOC_START:

		nosy_start_snoop(client);

		spin_lock_irq(client_list_lock);

		list_add_tail(&client->link, &client->lynx->client_list);

		spin_unlock_irq(client_list_lock);



		return 0;



	case NOSY_IOC_STOP:

		nosy_stop_snoop(client);

		spin_lock_irq(client_list_lock);

		list_del_init(&client->link);

		spin_unlock_irq(client_list_lock);



		return 0;



	case NOSY_IOC_FILTER:

		spin_lock_irq(client_list_lock);

		client->tcode_mask = arg;

		spin_unlock_irq(client_list_lock);



		return 0;



	default: