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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 len, gfp_t gfp_mask);

ARGUMENTS

dev
network device to receive on

len

length to allocate

gfp_mask

get_free_pages mask, passed to alloc_skb

DESCRIPTION

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.

COPYRIGHT

April 2019 Kernel Hackers Manual 4.9.