Return-path: Received: from mail-ob0-f177.google.com ([209.85.214.177]:36668 "EHLO mail-ob0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757340Ab3EBPBx (ORCPT ); Thu, 2 May 2013 11:01:53 -0400 Received: by mail-ob0-f177.google.com with SMTP id un3so554444obb.36 for ; Thu, 02 May 2013 08:01:53 -0700 (PDT) Message-ID: <51827FDF.3060406@lwfinger.net> (sfid-20130502_170157_385010_8FF5350B) Date: Thu, 02 May 2013 10:01:51 -0500 From: Larry Finger MIME-Version: 1.0 To: =?ISO-8859-1?Q?Michael_B=FCsch?= CC: Thommy Jakobsson , linville@tuxdriver.com, linux-wireless@vger.kernel.org, b43-dev@lists.infradead.org Subject: Re: [PATCH] B43: Handle DMA RX descriptor underrun References: <20130502150603.2ac36385@milhouse> In-Reply-To: <20130502150603.2ac36385@milhouse> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Sender: linux-wireless-owner@vger.kernel.org List-ID: On 05/02/2013 08:06 AM, Michael B?sch wrote: > On Tue, 23 Apr 2013 21:45:11 +0200 (CEST) > Thommy Jakobsson wrote: > >> From: Thommy Jakobsson >> >> Add handling of rx descriptor underflow. This fixes a fault that could >> happen on slow machines, where data is received faster than the CPU can >> handle. In such a case the device will use up all rx descriptors and >> refuse to send any more data before confirming that it is ok. This >> patch enables necessary interrupt to discover such a situation and will >> handle them by dropping everything in the ring buffer. >> >> Reviewed-by: Michael Buesch >> Signed-off-by: Thommy Jakobsson >> Cc: stable > > Anybody interested in porting this to b43legacy (and testing)? Michael, I will take care of that. It may take a while due to other projects. Larry