From owner-svn-src-head@freebsd.org Wed Mar 6 23:47:40 2019 Return-Path: Delivered-To: svn-src-head@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 71326152B845; Wed, 6 Mar 2019 23:47:40 +0000 (UTC) (envelope-from bz@FreeBSD.org) Received: from smtp.freebsd.org (smtp.freebsd.org [IPv6:2610:1c1:1:606c::24b:4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "smtp.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 17B8C7717B; Wed, 6 Mar 2019 23:47:40 +0000 (UTC) (envelope-from bz@FreeBSD.org) Received: from mx1.sbone.de (mx1.sbone.de [IPv6:2a01:4f8:13b:39f::9f:25]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mx1.sbone.de", Issuer "SBone.DE" (not verified)) (Authenticated sender: bz/mail) by smtp.freebsd.org (Postfix) with ESMTPSA id E6A137872; Wed, 6 Mar 2019 23:47:39 +0000 (UTC) (envelope-from bz@FreeBSD.org) Received: from mail.sbone.de (mail.sbone.de [IPv6:fde9:577b:c1a9:31::2013:587]) (using TLSv1 with cipher ADH-CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) by mx1.sbone.de (Postfix) with ESMTPS id DE3518D4A175; Wed, 6 Mar 2019 23:47:37 +0000 (UTC) Received: from content-filter.sbone.de (content-filter.sbone.de [IPv6:fde9:577b:c1a9:31::2013:2742]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.sbone.de (Postfix) with ESMTPS id 05B1CE707FD; Wed, 6 Mar 2019 23:47:37 +0000 (UTC) X-Virus-Scanned: amavisd-new at sbone.de Received: from mail.sbone.de ([IPv6:fde9:577b:c1a9:31::2013:587]) by content-filter.sbone.de (content-filter.sbone.de [fde9:577b:c1a9:31::2013:2742]) (amavisd-new, port 10024) with ESMTP id vRxbCxayil-y; Wed, 6 Mar 2019 23:47:35 +0000 (UTC) Received: from [192.168.2.110] (unknown [IPv6:fde9:577b:c1a9:31:2ef0:eeff:fe03:ee34]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.sbone.de (Postfix) with ESMTPSA id 448FFE707E9; Wed, 6 Mar 2019 23:47:35 +0000 (UTC) From: "Bjoern A. Zeeb" To: rgrimes@freebsd.org Cc: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r344859 - in head: sbin/ifconfig sys/net sys/netinet6 Date: Wed, 06 Mar 2019 23:47:34 +0000 X-Mailer: MailMate (2.0BETAr6135) Message-ID: In-Reply-To: <201903062339.x26Nd6nx088089@ gndrsh.dnsmgr.net> References: <201903062339.x26Nd6nx088089@ gndrsh.dnsmgr.net> MIME-Version: 1.0 Content-Type: text/plain; format=flowed X-Rspamd-Queue-Id: 17B8C7717B X-Spamd-Bar: ------ Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-6.93 / 15.00]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; NEURAL_HAM_SHORT(-0.93)[-0.930,0]; REPLY(-4.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000,0] X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 06 Mar 2019 23:47:40 -0000 On 6 Mar 2019, at 23:39, Rodney W. Grimes wrote: >> Author: bz >> Date: Wed Mar 6 23:31:42 2019 >> New Revision: 344859 >> URL: https://svnweb.freebsd.org/changeset/base/344859 >> >> Log: >> Update for IETF draft-ietf-6man-ipv6only-flag. >> >> All changes are hidden behind the EXPERIMENTAL option and are not >> compiled >> in by default. > > It is probably time to make EXPERIMENTAL finer grain, > there are likely more than one experiment to be avaliable > in the tree at the same time, and having them all use this > one knob is a bit of a pita. I added the knob to encourage people putting more stuff under it. Making it finer grained did not seem to be a good idea at the time. For that we do have individual kernel options. If you are saying that I should add an extra layer of #ifdef under EXPERIMENTAL such as #ifdef EXP_IPV6_ONLY_FLAG, adding such a kernel option seems plausible though a pain when this either goes away entirely or becomes mainline and in either case would not be under an extra option. /bz