From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [RFC][PATCH] Allow change timing values to wait slow devices bring up before try register an interface to IP-Config Date: Tue, 09 Feb 2010 23:04:26 -0800 (PST) Message-ID: <20100209.230426.65176612.davem@davemloft.net> References: <600adaf51002091947ta095cc5g7174684f57488e94@mail.gmail.com> <20100209215120.ac46ff7c.akpm@linux-foundation.org> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: tiago.maluta@gmail.com, linux-net@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org To: akpm@linux-foundation.org Return-path: In-Reply-To: <20100209215120.ac46ff7c.akpm@linux-foundation.org> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org From: Andrew Morton Date: Tue, 9 Feb 2010 21:51:20 -0800 > Using delays was dumb of us, but I guess the problem is difficult. > > It would be much better to configure this delay at runtime rather than > at compile time. Perhaps with new kernel boot parameters, perhaps by > extending the ip= argument. Old topic, see the thread at: http://marc.info/?l=linux-netdev&m=126311212608318&w=2 I would prefer to just jack up the defaults a bit. My opinion is that just about any larger default value is reasonable, because if you enable IP autoconfig on the command line, you expect the link and device to be there and waiting a few extra seconds won't bother you.