From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752231AbeEOCpD (ORCPT ); Mon, 14 May 2018 22:45:03 -0400 Received: from shards.monkeyblade.net ([184.105.139.130]:45414 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752009AbeEOCpC (ORCPT ); Mon, 14 May 2018 22:45:02 -0400 Date: Mon, 14 May 2018 22:45:01 -0400 (EDT) Message-Id: <20180514.224501.737523188651166796.davem@davemloft.net> To: hpreg@vmware.com Cc: netdev@vger.kernel.org, doshir@vmware.com, pv-drivers@vmware.com, linux-kernel@vger.kernel.org Subject: Re: [PATCH net 2/2] vmxnet3: use DMA memory barriers where required From: David Miller In-Reply-To: <1526300090-78546-1-git-send-email-hpreg@vmware.com> References: <1526300090-78546-1-git-send-email-hpreg@vmware.com> X-Mailer: Mew version 6.7 on Emacs 25.3 / Mule 6.0 (HANACHIRUSATO) 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: Date: Mon, 14 May 2018 08:14:49 -0400 > The gen bits must be read first from (resp. written last to) DMA memory. > The proper way to enforce this on Linux is to call dma_rmb() (resp. > dma_wmb()). > > Signed-off-by: Regis Duchesne > Acked-by: Ronak Doshi Applied and queued up for -stable.