From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH net 2/2] vmxnet3: use DMA memory barriers where required Date: Mon, 14 May 2018 22:45:01 -0400 (EDT) Message-ID: <20180514.224501.737523188651166796.davem@davemloft.net> References: <1526300090-78546-1-git-send-email-hpreg@vmware.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, doshir@vmware.com, pv-drivers@vmware.com, linux-kernel@vger.kernel.org To: hpreg@vmware.com Return-path: In-Reply-To: <1526300090-78546-1-git-send-email-hpreg@vmware.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.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.