From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755536AbaIHXYr (ORCPT ); Mon, 8 Sep 2014 19:24:47 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:36423 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755079AbaIHXYq (ORCPT ); Mon, 8 Sep 2014 19:24:46 -0400 Date: Mon, 8 Sep 2014 16:24:45 -0700 From: Greg Kroah-Hartman To: Peter Hurley Cc: Jiri Slaby , One Thousand Gnomes , linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 00/26] tty/serial flow control fixes Message-ID: <20140908232445.GA28204@kroah.com> References: <1409693975-1028-1-git-send-email-peter@hurleysoftware.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1409693975-1028-1-git-send-email-peter@hurleysoftware.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Sep 02, 2014 at 05:39:09PM -0400, Peter Hurley wrote: > Hi Greg, > > This patch series reworks the internals of tty and serial flow control to > fix multiple races in both START/STOP flow control and RTS/CTS flow control. > > The main changes in this series are: > Patch 1 > Backs out the UPF_HARD_FLOW kludge for 8250. This revert should be > for mainline and -next > > Patches 3-7 > Fixes to x_char handling (ie., sending START/STOP) both in the serial > core and to several UART drivers > > Patches 10-15 > Rename and move ASYNC_CTS_FLOW and ASYNC_CHECK_CD statuses into > a private field for the serial core, and add helper functions to test > those statuses for UART drivers. > > This is a necessary step toward making tty port->flags SMP-safe, without > introducing a new lock. I stopped applying at patch 13, due to the objections to that patch. Please redo the rest of the series and resend. thanks, greg k-h