From owner-svn-src-all@FreeBSD.ORG Mon Nov 2 15:51:09 2009 Return-Path: Delivered-To: svn-src-all@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 771331065676; Mon, 2 Nov 2009 15:51:09 +0000 (UTC) (envelope-from imp@bsdimp.com) Received: from harmony.bsdimp.com (bsdimp.com [199.45.160.85]) by mx1.freebsd.org (Postfix) with ESMTP id 343458FC13; Mon, 2 Nov 2009 15:51:09 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by harmony.bsdimp.com (8.14.3/8.14.1) with ESMTP id nA2FjwNo071234; Mon, 2 Nov 2009 08:45:58 -0700 (MST) (envelope-from imp@bsdimp.com) Date: Mon, 02 Nov 2009 08:46:16 -0700 (MST) Message-Id: <20091102.084616.-1258100553.imp@bsdimp.com> To: ed@80386.nl From: "M. Warner Losh" In-Reply-To: <20091102102404.GP1293@hoeg.nl> References: <20091101011212.GG1293@hoeg.nl> <20091102100435.GA67211@walton.maths.tcd.ie> <20091102102404.GP1293@hoeg.nl> X-Mailer: Mew version 5.2 on Emacs 21.3 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: dwmalone@maths.tcd.ie, svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r198706 - head/sys/sys X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 02 Nov 2009 15:51:09 -0000 In message: <20091102102404.GP1293@hoeg.nl> Ed Schouten writes: : Hello David, : : * David Malone wrote: : > Surely it is an API change, but not an ABI change? Code that used : > to do: : > : > d.d_uid = 3; : > : > will no longer compile, but code that was comipled with the old : > version will still run. I understand that the assignment doesn't : > do anything useful, but I suppose there still could be code that : > does it? : : Yes, in theory there could be pieces of code that do that, but keep in : mind that d_uid was never meant to be used by device drivers. It was : used by devfs internally, before cdevpriv existed. : : Looking at the SVN logs, it was introduced in March 2005, but it was : already rendered useless in September that same year, when devfs was : modified to just obtain the ownership/modes from the cdevpriv instead of : the cdevsw. : : Interesting commits: : : - http://svn.freebsd.org/viewvc/base?view=revision&revision=143746 : - http://svn.freebsd.org/viewvc/base?view=revision&revision=150342 True, but you've now spent way more time than a version bump would have taken on this. The first of these also does a version bump. :) And you haven't answered my question: Have you confirmed that there's no ABI changes on all platforms? Warner