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| NETDEV_ALLOC_SKB(9) | Linux Networking | NETDEV_ALLOC_SKB(9) |
NAME¶
netdev_alloc_skb - allocate an skbuff for rx on a specific device
SYNOPSIS¶
struct sk_buff * netdev_alloc_skb(struct net_device * dev, unsigned int length);
ARGUMENTS¶
struct net_device * dev
network device to receive on
unsigned int length
length to allocate
DESCRIPTION¶
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.
COPYRIGHT¶
| June 2017 | Kernel Hackers Manual 4.11 |