skb_clone_writable(9)
NAME
skb_clone_writable - is the header of a clone writable
SYNOPSIS
int skb_clone_writable(struct sk_buff * skb, unsigned int len);
ARGUMENTS
- skb
- buffer to check
- len
- length up to which to write
DESCRIPTION
Returns true if modifying the header part of the cloned buffer does not
requires the data to be copied.