__NETDEV_ALLOC_SKB - Online Linux Manual PageSection : 9
Updated : June 2018
Source : Kernel Hackers Manual 2​.6​.
Note : Linux Networking

NAME__netdev_alloc_skb − allocate an skbuff for rx on a specific device

SYNOPSISstruct sk_buff * __netdev_alloc_skb(struct net_device * dev, unsigned int length, gfp_t gfp_mask);

ARGUMENTSdev network device to receive on length length to allocate gfp_mask get_free_pages mask, passed to alloc_skb

DESCRIPTIONAllocate 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​.

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