Hello all,
I had a question regarding alloc_skb() in arp_send() routine.
The question is:
skb = alloc_skb(sizeof(struct arphdr)+ 2*(dev->addr_len+4)
+ dev->hard_header_len + 15, GFP_ATOMIC);
What is the significance of 15 bytes in allocating the skbuff for the arp
packet? Since the the size of arp header and hard header are already taken
into account, why do we need the 15 bytes? What is it used for?
Thanks In Advance,
Pramodh
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