From: Doron Roberts-Kedes
Date: Tue, 28 Aug 2018 16:33:57 -0700
> decrypt_skb fails if the number of sg elements required to map it
> is greater than MAX_SKB_FRAGS. nsg must always be calculated, but
> skb_cow_data adds unnecessary memcpy's for the zerocopy case.
>
> The new function skb_nsg cal
decrypt_skb fails if the number of sg elements required to map it
is greater than MAX_SKB_FRAGS. nsg must always be calculated, but
skb_cow_data adds unnecessary memcpy's for the zerocopy case.
The new function skb_nsg calculates the number of scatterlist elements
required to map the skb without t
