From: Eric Dumazet
Date: Sat, 8 Jun 2019 17:58:51 -0700
> In case autoflowlabel is in action, skb_get_hash_flowi6()
> derives a non zero skb->hash to the flowlabel.
>
> If skb->hash is zero, a flow dissection is performed.
>
> Since all TCP skbs sent from ESTABLISH state inherit their
> skb->h
In case autoflowlabel is in action, skb_get_hash_flowi6()
derives a non zero skb->hash to the flowlabel.
If skb->hash is zero, a flow dissection is performed.
Since all TCP skbs sent from ESTABLISH state inherit their
skb->hash from sk->sk_txhash, we better keep a copy
of sk->sk_txhash into the T