From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Garzik Subject: Re: [PATCH] drivers/net: remove network drivers' last few uses of IRQF_SAMPLE_RANDOM Date: Thu, 15 May 2008 15:21:49 -0400 Message-ID: <482C8D4D.3040702@garzik.org> References: <20080515142154.0595e475@core> <36D9DB17C6DE9E40B059440DB8D95F52052D71BB@orsmsx418.amr.corp.intel.com> <482C7B18.6060003@garzik.org> <482C7E53.3050300@hp.com> <482C8184.2030906@garzik.org> <482C8550.5000909@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Rick Jones , "Brandeburg, Jesse" , Alan Cox , Chris Peterson , netdev@vger.kernel.org, linux-kernel@vger.kernel.org To: "Kok, Auke" Return-path: Received: from srv5.dvmed.net ([207.36.208.214]:38624 "EHLO mail.dvmed.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750800AbYEOTV5 (ORCPT ); Thu, 15 May 2008 15:21:57 -0400 In-Reply-To: <482C8550.5000909@intel.com> Sender: netdev-owner@vger.kernel.org List-ID: Kok, Auke wrote: > How about the non-NAPI and non-throttled case? I would argue that without any irq > mitigation we can still use SA_RANDOM. Many (e.g. embedded) devices will want some When was the last time we added a new driver for new hardware, and it didn't support NAPI and/or hw mitigation? They are few and far between, and getting ever more rare. > extra form of entropy, and providing them it in this form will be very beneficial > as these devices more commonly have no other form of entropy anymore. "no other form of entropy"? See examples in this thread. Jeff