On 04/23/2018 02:40 PM, Emanuele wrote: > Hello, > > I don't know if this is the right place where to ask, but I was wondering why > the dev_loopback_xmit function defined in /net/core/dev.c takes struct net * > and struct sock * as parameters. They are never used, so I believe passing > only the struct sk_buff * should be enough. >
Look at net/ipv6/ip6_output.c where NF_HOOK() uses dev_loopback_xmit(). > In addition, it would like to know where I can read what is and how to set a > skb dst_entry, since I don't really understand it. > > Thanks a lot, > > Emanuele >