From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 814B4C10F12 for ; Mon, 15 Apr 2019 14:41:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 57E692077C for ; Mon, 15 Apr 2019 14:41:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727649AbfDOOlO (ORCPT ); Mon, 15 Apr 2019 10:41:14 -0400 Received: from mail.kernel.org ([198.145.29.99]:36494 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727602AbfDOOlN (ORCPT ); Mon, 15 Apr 2019 10:41:13 -0400 Received: from gandalf.local.home (cpe-66-24-58-225.stny.res.rr.com [66.24.58.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id D35DE2075B; Mon, 15 Apr 2019 14:41:10 +0000 (UTC) Date: Mon, 15 Apr 2019 10:41:09 -0400 From: Steven Rostedt To: Olof Johansson Cc: Alexei Starovoitov , Joel Fernandes , Joel Fernandes , Linux Kernel Mailing List , Qais Yousef , Dietmar Eggemann , Manoj Rao , Andrew Morton , Alexei Starovoitov , atish patra , Daniel Colascione , Dan Williams , Greg Kroah-Hartman , Guenter Roeck , Jonathan Corbet , Karim Yaghmour , Kees Cook , Android Kernel Team , "open list:DOCUMENTATION" , "open list:KERNEL SELFTEST FRAMEWORK" , linux-trace-devel@vger.kernel.org, Masahiro Yamada , Masami Hiramatsu , Randy Dunlap , Shuah Khan , Yonghong Song Subject: Re: [PATCH v5 1/3] Provide in-kernel headers to make extending kernel easier Message-ID: <20190415104109.64d914f3@gandalf.local.home> In-Reply-To: References: <20190320163116.39275-1-joel@joelfernandes.org> <20190408203601.GF133872@google.com> <20190411031540.ehezr6kq7ouobpzx@ast-mbp.dhcp.thefacebook.com> X-Mailer: Claws Mail 3.17.3 (GTK+ 2.24.32; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, 14 Apr 2019 12:38:34 -0700 Olof Johansson wrote: > >From my perspective, this is where we're at: > > This patch seems to have been met with a lot of responses in the tone > of "this is not an appealing solution". Meanwhile, some of the > suggested alternative solutions have not worked out, and we are now at > a point where there's less interest in exploring alternatives and > arguments to merge as-is with only minor adjustments. Another consideration to make is difficulty of support. Having a tarball compressed headers may not be an appealing solution, but it isn't one that would be too much of an issue to support. Having a better interface would be difficult to get right, and if you get it wrong, you are now stuck with supporting something that may become a big pain to do so in the future. > I'd be a *lot* less hesitant if this went into debugfs or another > location than /proc, which is one of the most regression-sensitive > interfaces we have in the kernel. > I agree with this assessment. We shouldn't use config.gz as precedence for this solution. config.gz should have been in debugfs to begin with, but I don't believe debugfs was around when config.gz was introduced. (Don't have time to look into the history of the two). -- Steve