From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756653AbYGaK0J (ORCPT ); Thu, 31 Jul 2008 06:26:09 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751934AbYGaKZy (ORCPT ); Thu, 31 Jul 2008 06:25:54 -0400 Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:56596 "EHLO sunset.davemloft.net" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1750887AbYGaKZy (ORCPT ); Thu, 31 Jul 2008 06:25:54 -0400 Date: Thu, 31 Jul 2008 03:25:53 -0700 (PDT) Message-Id: <20080731.032553.67275433.davem@davemloft.net> To: dwmw2@infradead.org Cc: torvalds@linux-foundation.org, thomas.petazzoni@free-electrons.com, linux-kernel@vger.kernel.org, linux-embedded@vger.kernel.org, michael@free-electrons.com Subject: Re: [patch 0/4] [resend] Add configuration options to disable features not needed on embedded devices From: David Miller In-Reply-To: <1217499316.3454.118.camel@pmac.infradead.org> References: <1217498355.3454.103.camel@pmac.infradead.org> <20080731.030205.153067850.davem@davemloft.net> <1217499316.3454.118.camel@pmac.infradead.org> X-Mailer: Mew version 5.2 on Emacs 22.1 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: David Woodhouse Date: Thu, 31 Jul 2008 11:15:16 +0100 > While I agree with Andrew's observation, I'd also respectfully submit > that your argument is more fundamentally bogus than that. TCP and UDP > are _not_ universally available. They go away if you set CONFIG_INET=n. Like I said, people can locally patch their systems if they really want to rip out fundamental things like multicast support. Some folks might find it instructive to do a google code search or similar on the multicast socket options this things dikes out of the tree. Even simple things like NTP will spew failures with this CONFIG_IGMP thing turned off. And that's just the tip of the iceberg.