From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bryan Wu Subject: Re: [PATCH 1/2] netdev/fec: fix performance impact from mdio poll operation Date: Fri, 28 May 2010 13:23:30 +0800 Message-ID: <4BFF5352.8080104@canonical.com> References: <1273199239-11057-1-git-send-email-bryan.wu@canonical.com> <1273199239-11057-2-git-send-email-bryan.wu@canonical.com> <20100516.002818.133869940.davem@davemloft.net> Reply-To: bryan.wu@canonical.com Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: s.hauer@pengutronix.de, gerg@uclinux.org, amit.kucheria@canonical.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org To: David Miller Return-path: In-Reply-To: <20100516.002818.133869940.davem@davemloft.net> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On 05/16/2010 03:28 PM, David Miller wrote: > From: Bryan Wu > Date: Fri, 7 May 2010 10:27:18 +0800 > >> BugLink: http://bugs.launchpad.net/bugs/546649 >> BugLink: http://bugs.launchpad.net/bugs/457878 >> >> After introducing phylib supporting, users experienced performace drop. That is >> because of the mdio polling operation of phylib. Use msleep to replace the busy >> waiting cpu_relax() and remove the warning message. >> >> Signed-off-by: Bryan Wu >> Acked-by: Andy Whitcroft > > As you've already been told, making these MDIO interfaces fail silently > is not acceptable. > > Please fix this bug properly and resubmit this patch series. > So sorry for the delay. My board's broken for several weeks. After I got a new, I will try to fix this and resubmit this patch. Thanks -- Bryan Wu Kernel Developer +86.138-1617-6545 Mobile Ubuntu Kernel Team | Hardware Enablement Team Canonical Ltd. www.canonical.com Ubuntu - Linux for human beings | www.ubuntu.com