Hi Thomas, Thanks for your reply.
On Thu, Jan 30, 2014 at 3:27 PM, Thomas Graf <tg...@suug.ch> wrote: > On 01/30/14 at 02:05pm, Tom Gundersen wrote: >> Userspace needs to reliably know the ifindex of the netdevs it creates, >> as we cannot rely on the ifname staying unchanged. >> >> Earlier, a simlpe NLMSG_ERROR would be returned, but this returns the >> corresponding RTM_NEWLINK on success instead. > > This breaks existing Netlink applications in user space. User space > apps are not prepared to receive both a RTM_NEWLINK reply _and_ > the ACK unless they have set NLM_F_ECHO in the original request. > > You can already reliably retrieve the ifindex by listening to > RTNLGRP_LINK messages and be notified about the link created > including all follow-up renames. Ok, we'll keep doing this instead. Cheers, Tom -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/