Merge branch 'add-ip-port-information-to-udp-drop-tracepoint'

Merge branch 'add-ip-port-information-to-udp-drop-tracepoint'

Balazs Scheidler says:

====================
Add IP/port information to UDP drop tracepoint

In our use-case we would like to recover the properties of dropped UDP
packets. Unfortunately the current udp_fail_queue_rcv_skb tracepoint
only exposes the port number of the receiving socket.

This patch-set will add the source/dest ip/port to the tracepoint, while
keeping the socket's local port as well for compatibility.

Thanks for the review comments by Jason and Kuniyuki, they helped me a lot
and I tried to address all of their comments in this new iteration.
====================

Link: https://lore.kernel.org/r/cover.1711475011.git.balazs.scheidler@axoflow.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>