netdev_alloc_skb — allocate an skbuff for rx on a specific device
struct sk_buff * netdev_alloc_skb ( | struct net_device * dev, |
unsigned int length) ; |
struct net_device * dev
network device to receive on
unsigned int length
length to allocate
Allocate a new &sk_buff and assign it a usage count of one. The buffer has unspecified headroom built in. Users should allocate the headroom they think they need without accounting for the built in space. The built in space is used for optimisations.
NULL
is returned if there is no free memory. Although this function
allocates memory it can be called from an interrupt.