Commit 49f96fd0 authored by Jason Wang's avatar Jason Wang Committed by David S. Miller
Browse files

tap: export skb_array 



This patch exports skb_array through tap_get_skb_array(). Caller can
then manipulate skb array directly.

Signed-off-by: default avatarJason Wang <jasowang@redhat.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 83339c6b

drivers/net/tap.c

+13 −0
Original line number Diff line number Diff line
@@ -1193,6 +1193,19 @@ struct socket *tap_get_socket(struct file *file) 
}

EXPORT_SYMBOL_GPL(tap_get_socket);



struct skb_array *tap_get_skb_array(struct file *file)

{

	struct tap_queue *q;



	if (file->f_op != &tap_fops)

		return ERR_PTR(-EINVAL);

	q = file->private_data;

	if (!q)

		return ERR_PTR(-EBADFD);

	return &q->skb_array;

}

EXPORT_SYMBOL_GPL(tap_get_skb_array);



int tap_queue_resize(struct tap_dev *tap)

{

	struct net_device *dev = tap->dev;

include/linux/if_tap.h

+5 −0
Original line number Diff line number Diff line
@@ -3,6 +3,7 @@ 


#if IS_ENABLED(CONFIG_TAP)

struct socket *tap_get_socket(struct file *);

struct skb_array *tap_get_skb_array(struct file *file);

#else

#include <linux/err.h>

#include <linux/errno.h>
@@ -12,6 +13,10 @@ static inline struct socket *tap_get_socket(struct file *f) 
{

	return ERR_PTR(-EINVAL);

}

static inline struct skb_array *tap_get_skb_array(struct file *f)

{

	return ERR_PTR(-EINVAL);

}

#endif /* CONFIG_TAP */



#include <net/sock.h>