From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: network interface state Date: Wed, 14 Nov 2007 19:39:49 -0800 (PST) Message-ID: <20071114.193949.26706514.davem@davemloft.net> References: <20071114.162201.174150647.davem@davemloft.net> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: drepper@redhat.com, netdev@vger.kernel.org To: herbert@gondor.apana.org.au Return-path: Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:43228 "EHLO sunset.davemloft.net" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1753159AbXKODju (ORCPT ); Wed, 14 Nov 2007 22:39:50 -0500 In-Reply-To: Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org From: Herbert Xu Date: Thu, 15 Nov 2007 10:11:35 +0800 > David Miller wrote: > > > >> BTW, is it possible to send both these requests out before starting to > >> read the results? This would reduce the amount of code quite a bit. > > > > Unfortunately, that won't work. Like datagram protocols, > > netlink assumes one message per sendmsg() call. > > Actually netlink packets come with headers so we do allow chaining. > See netlink_rcv_skb for details. My bad, you are indeed right. Ulrich you can therefore send both messages in one go if you like.