Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964948AbcDYUr0 (ORCPT ); Mon, 25 Apr 2016 16:47:26 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:56382 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933361AbcDYUrY (ORCPT ); Mon, 25 Apr 2016 16:47:24 -0400 Date: Mon, 25 Apr 2016 13:47:20 -0700 From: Stephen Boyd To: Frank Rowand Cc: Andy Gross , David Brown , Greg Kroah-Hartman , Jiri Slaby , "linux-arm-msm@vger.kernel.org" , linux-soc@vger.kernel.org, linux-serial@vger.kernel.org, Linux Kernel list , ivan.ivanov@linaro.org Subject: Re: [PATCH 1/2] tty: serial: msm_serial regression fix data corruption Message-ID: <20160425204720.GF13149@codeaurora.org> References: <571BAC8B.80001@gmail.com> <571BAD78.4020609@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <571BAD78.4020609@gmail.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 769 Lines: 23 On 04/23, Frank Rowand wrote: > From: Frank Rowand > > Commit 3a878c430fd6 ("tty: serial: msm: Add TX DMA support") regression. > The calculation of tx_count was moved from the old msm_handle_tx(), > now renamed msm_handle_tx_pio(), to the new msm_handle_tx(). The > move left out one size test. > > The regression seen on the qcom-apq8074-dragonboard is dropped > characters and corrupted characters (values greater than 0x7f) > when DMA is not enabled. > > Signed-off-by: Frank Rowand > Cc: stable@vger.kernel.org > --- Reviewed-by: Stephen Boyd Thanks for finding this! -- Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project