On Fri, 2017-08-25 at 20:25 -0700, Florian Fainelli wrote: > It would. Since the call trace involves udp_send_skb() how come we are > not returning an error to write(2)? are there other code paths where the > neighbor code can do drops like these?
Are you suggesting write(2) should block until ARP resolution is done ? :) What about non blocking writes ? Honestly UDP is not a protocol for which we must absolutely be sure packets are sent or not.