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=-0.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS 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 1640EC43381 for ; Mon, 11 Mar 2019 17:02:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D911C206BA for ; Mon, 11 Mar 2019 17:02:48 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="fIqdc4wp" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727722AbfCKRCr (ORCPT ); Mon, 11 Mar 2019 13:02:47 -0400 Received: from mail-oi1-f193.google.com ([209.85.167.193]:45093 "EHLO mail-oi1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726942AbfCKRCr (ORCPT ); Mon, 11 Mar 2019 13:02:47 -0400 Received: by mail-oi1-f193.google.com with SMTP id t82so4225670oie.12 for ; Mon, 11 Mar 2019 10:02:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=3TbVtP0Cj4bmw2Da24wUcfs6Q5Qke3mMiEDs+Miru/A=; b=fIqdc4wpO6StOLFT8oWU1XI7m5mw67XLkZVDuDPwHw0S2DD2mSb8MhdTVorY8XmJJ+ WQUwszYhD1W+ihS6vDgpuNvEJdn4aPY7dDRdzGwGHLDdAlkzDWSQaOyUzUfFuIHam4EN V+RYcGvAyvH+7WqbFsdTD8XedCCWsfXiZlzq7ihL8ril1PUiW8yb4azifxmdiVoFJ3E/ 3+79ouQbd8q3+/0fghDWaKyl16pecJqjHYuu93Tcyop8FG1jpizFSgBQeDF7jbeTAenp JEA1jbWX6RMLRTgiq7nWoQF+kz8wqOmaPuRuN4gbflHIGy9W5c/5xQjKU+Yh7tHNuMKe gU6Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=3TbVtP0Cj4bmw2Da24wUcfs6Q5Qke3mMiEDs+Miru/A=; b=hX5oPsCPgEGQI4TB4ObwZgE+uUTJ+dnwTd+88qmGndDn+mo3CoRivz4+Ztvpxpvstx n0YVZufvzNNGxEohggvqGAlNiLf7CvKN9n5W5TXNycnxhVC17nDLmxEoazsT/MOYhAlN XDxUFksUtxThj52VDb/xve4AFZ0G5fy2obj+yfFX+rlSrI14uMtm6CHH/VjSqxmKuUH6 NSJ1O18DdbRTKm1JU7XLX8RFJJvuf6CrPwQ15Ber0YanXXOoUZT309Sy2Ci1tadIy7ME 93YAamdv3w96Ch1iwlRcKImFGqYdACUgRgA5yW8Mc4yPZBwJ9EV+xJJnc3Yvjz42sVIQ fYTg== X-Gm-Message-State: APjAAAVvDLXHSrSAC2/jLk3mnLmmTGkiYJ580nZjRBSB4L017FAyKWVs nq8SnqFs6fJKN2IuamIjkV/zPDjSEnZwZlnUeIs= X-Google-Smtp-Source: APXvYqyUJh5SwMWdRQjBfOgNTs3gt0ln9otGe2JA4zycV0jREnAjG8P4pCtKfnt4YWR2T/ntMd0kjU/yIteMt71lDDU= X-Received: by 2002:aca:5d0a:: with SMTP id r10mr41143oib.92.1552323765878; Mon, 11 Mar 2019 10:02:45 -0700 (PDT) MIME-Version: 1.0 References: <20190124201251.15159-1-TheSven73@googlemail.com> <20190208121916.GE23483@kroah.com> <20190208141400.GA22162@kroah.com> In-Reply-To: <20190208141400.GA22162@kroah.com> From: Sven Van Asbroeck Date: Mon, 11 Mar 2019 13:02:34 -0400 Message-ID: Subject: Re: [PATCH v8 0/6] Add Fieldbus subsystem + support HMS Profinet card To: Greg KH Cc: robh+dt@kernel.org, Linus Walleij , Lee Jones , mark.rutland@arm.com, =?UTF-8?Q?Andreas_F=C3=A4rber?= , 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 Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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. Sven