netdev_alloc_skb (9) - Linux Man Pages

netdev_alloc_skb: allocate an skbuff for rx on a specific device

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

dev

network device to receive on

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.

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