From: Sabrina Dubroca
Date: Sat, 30 Jun 2018 17:38:55 +0200
> Since the addition of GRO for ESP, gro_receive can consume the skb and
> return -EINPROGRESS. In that case, the lower layer GRO handler cannot
> touch the skb anymore.
>
> Commit 5f114163f2f5 ("net: Add a skb_gro_flush_final helper.")
Since the addition of GRO for ESP, gro_receive can consume the skb and
return -EINPROGRESS. In that case, the lower layer GRO handler cannot
touch the skb anymore.
Commit 5f114163f2f5 ("net: Add a skb_gro_flush_final helper.") converted
some of the gro_receive handlers that can lead to ESP's gro_r
