Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S967352AbdIZQck (ORCPT ); Tue, 26 Sep 2017 12:32:40 -0400 Received: from imap1.codethink.co.uk ([176.9.8.82]:56759 "EHLO imap1.codethink.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965387AbdIZQcj (ORCPT ); Tue, 26 Sep 2017 12:32:39 -0400 Message-ID: <1506443547.1860.52.camel@codethink.co.uk> Subject: Re: [PATCH 4.4 50/53] ntb_transport: fix qp count bug From: Ben Hutchings To: Greg Kroah-Hartman , Logan Gunthorpe , Shyam Sundar S K Cc: linux-kernel@vger.kernel.org, stable@vger.kernel.org, Allen Hubbe , Jon Mason Date: Tue, 26 Sep 2017 17:32:27 +0100 In-Reply-To: <20170828080519.919720553@linuxfoundation.org> References: <20170828080517.599193891@linuxfoundation.org> <20170828080519.919720553@linuxfoundation.org> Organization: Codethink Ltd. Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.12.9-1+b1 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 764 Lines: 28 On Mon, 2017-08-28 at 10:05 +0200, Greg Kroah-Hartman wrote: > 4.4-stable review patch. If anyone has any objections, please let me know. > > ------------------ > > From: Logan Gunthorpe > > commit cb827ee6ccc3e480f0d9c0e8e53eef55be5b0414 upstream. > > In cases where there are more mw's than spads/2-2, the mw count gets > reduced to match the limitation. [...] In 4.4-stable, it doesn't, so this patch doesn't fix anything. It looks like 4.4 would need a backport of: commit b17faba03fc72091f4d040b879def004316952ec Author: Shyam Sundar S K Date: Wed Dec 7 22:37:05 2016 +0530 ntb_transport: Limit memory windows based on available, scratchpads Ben. -- Ben Hutchings Software Developer, Codethink Ltd.