__netdev_alloc_skb - allocate an skbuff for rx on a specific device
struct sk_buff * __netdev_alloc_skb(struct net_device * dev, unsigned int len, gfp_t gfp_mask);
Allocate a new sk_buff and assign it a usage count of one. The buffer has NET_SKB_PAD 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.
|January 2017||Kernel Hackers Manual 4.8.|