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=-2.5 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, USER_AGENT_MUTT autolearn=ham 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 034DAC43381 for ; Mon, 11 Mar 2019 19:13:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C6DFB2084F for ; Mon, 11 Mar 2019 19:13:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1552331622; bh=zPv8wh55mywMCqa0owDJ4RdB4f4ecTYLUs/yicH8mwg=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=VISYb0nFt+G/w+6bVST0vPazmbxjTx0+8GG8T377BUfxWIsGnouuxl4RU++jN3ZEO Y+/Deqdw1/3h5SemzU0krqXURRe9lXVUtII8ZGx3OPTSNr35G6ReEX0Ncmr1Cm+O8h GBIvsfRxWA8SfZkB7zCZDXVUSWZyuhRnG47ksMBA= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727794AbfCKTNl (ORCPT ); Mon, 11 Mar 2019 15:13:41 -0400 Received: from mail.kernel.org ([198.145.29.99]:52590 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726675AbfCKTNl (ORCPT ); Mon, 11 Mar 2019 15:13:41 -0400 Received: from localhost (unknown [104.132.1.109]) (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 4325D20657; Mon, 11 Mar 2019 19:13:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1552331620; bh=zPv8wh55mywMCqa0owDJ4RdB4f4ecTYLUs/yicH8mwg=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=CNCZ/6kWBThGhQTGTG0EXae1YaKzqvpxp54475VMH3YIND7pPRRiv7Yn8pNwpOD00 CREzzfEMXwcXPVZ9ieK5rXw6kA1vkzVmdYEwrCDmfYitULPKwS5hA0Cn0Rt0SaWBiT BEzFpuClxHcHozT4rtBByU4AqXJsNgsVlHgH+Yho= Date: Mon, 11 Mar 2019 12:13:39 -0700 From: Greg KH To: Sven Van Asbroeck Cc: robh+dt@kernel.org, Linus Walleij , Lee Jones , mark.rutland@arm.com, Andreas =?iso-8859-1?Q?F=E4rber?= , treding@nvidia.com, David Lechner , noralf@tronnes.org, johan@kernel.org, Michal Simek , michal.vokac@ysoft.com, Arnd Bergmann , john.garry@huawei.com, geert+renesas@glider.be, robin.murphy@arm.com, Paul Gortmaker , sebastien.bourdelin@savoirfairelinux.com, icenowy@aosc.io, Stuart Yoder , maxime.ripard@bootlin.com, Linux Kernel Mailing List Subject: Re: [PATCH v8 0/6] Add Fieldbus subsystem + support HMS Profinet card Message-ID: <20190311191339.GA5628@kroah.com> References: <20190124201251.15159-1-TheSven73@googlemail.com> <20190208121916.GE23483@kroah.com> <20190208141400.GA22162@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.11.3 (2019-02-01) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Mar 11, 2019 at 01:02:34PM -0400, Sven Van Asbroeck wrote: > On Fri, Feb 8, 2019 at 9:14 AM Greg KH wrote: > > > > Well, who wants this code? Who uses it? Find those people and get them > > to review it. If no one wants it or uses it, that kind of implies that > > it's not needed :) > > We have customers who (will) talk to this ABI from userspace, but they are > not 'Linux-y' enough to come to the mailing list and meaningfully review > the userspace ABI. > > IMHO the current reality of Fieldbus on Linux is companies rolling their own > proprietary out-of-tree interfaces and drivers. They do this partly because > there is no existing community or infrastructure. So there is no incentive > to be involved with mainline, which could also explain why no-one is commenting > on this Fieldbus ABI. > > Chicken-and-egg problem ? > > Greg, could I convince you to take this Fieldbus subsystem in drivers/staging? > Perhaps its presence may kickstart or seed a Linux Fieldbus community. > Being in staging/ also means that we can tweak the userspace ABI to our > heart's content if more people/requirements come in. > > If there's been no meaningful activity in, say, one year from now, you may > decide to send this whole subsystem to /dev/null. That sounds like a good plan, I'll take that. Want to respin the patches with the code in drivers/staging/ and I'll be glad to queue them up after 5.1-rc1 is out. thanks, greg k-h