On Tue, Jun 17, 2014 at 08:06:58AM +0200, Stefan Priebe - Profihost AG wrote: > Am 16.06.2014 23:30, schrieb Francois Romieu: > > Stefan Priebe - Profihost AG <s.priebe@xxxxxxxxxxxx> : > > [...] > >> That sounds great! Is there anything I can do or some code I can port to veth? > > > > You may add an empty handler for .ndo_poll_controller in drivers/net/veth.c > > and give it a try on current kernel. > > > > It should not be too bad. > > > Why is an empty poll controller enough to fix it? This sounds a bit > crazy to me. > Because the presence of a non-null poll_controller method is how we determine if a device supports netpoll. Most devices require a ndo_poll_controller function to simulate an interrupt for receiving packets, but virtual devices really don't, so an empty function sufficies to get the device recognized as having netpoll support. See tun_poll_controller as an example Neil > > Greets, > Stefan > -- > To unsubscribe from this list: send the line "unsubscribe netdev" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html >
