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[2620:137:e000::1:20]) by mx.google.com with ESMTP id t123-20020a632d81000000b003816043eef5si14690821pgt.234.2022.04.05.18.54.18; Tue, 05 Apr 2022 18:54:37 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@linutronix.de header.s=2020 header.b=LqXhRsdw; dkim=neutral (no key) header.i=@linutronix.de header.s=2020e header.b=cjAF5UHN; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=linutronix.de Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1386514AbiDEMyl (ORCPT + 99 others); Tue, 5 Apr 2022 08:54:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40106 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1343886AbiDEJOt (ORCPT ); Tue, 5 Apr 2022 05:14:49 -0400 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7EB5752E06; Tue, 5 Apr 2022 02:01:14 -0700 (PDT) From: Kurt Kanzenbach DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1649149273; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=Rh9iNBZn1TytrAMYCuDnnKJmAsEgHeZEynUJiMvsZOk=; b=LqXhRsdwDnx50slIXYLrlXIl752amZvkIUa+s95z9opK0k7PBcMaDQEyDtbPGUTQc7zuKp Oi1YamAS9fyv758WO/F8pHuu7KLe5taH9kVzXq8z9W/3ma+zIYv1V/wrsQgsyFuBFx8XRp eDOKdiMFG9Mv0qenCxkSSN+y/739o2C39H5qdpKNEjQZdtILXtju9C0VZB7Hz2/w7ROoF/ 0m8DkPKMK1mEs3BEfkqAdfdbhp7orXEO06I9hLjm7oe8FcxcSdH4rMffV2h/p9GjTfSo3K JQ9wI2a6AWgnY7zANYUy1bCQepfqCFYazHgkAiUF6iLRg9rA7qQVdtxIlz8H7Q== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1649149273; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=Rh9iNBZn1TytrAMYCuDnnKJmAsEgHeZEynUJiMvsZOk=; b=cjAF5UHNewgoGCOyWlqrCBrRJ8eRcQ9tFo8q1TaB6DLMNlhycV8uzT4L1UijpRYZBi4czh SuAsh9qDhvhk8sAQ== To: Michael Walle , Andrew Lunn Cc: richardcochran@gmail.com, davem@davemloft.net, grygorii.strashko@ti.com, kuba@kernel.org, linux-kernel@vger.kernel.org, linux@armlinux.org.uk, mlichvar@redhat.com, netdev@vger.kernel.org, qiangqing.zhang@nxp.com, vladimir.oltean@nxp.com Subject: Re: [PATCH RFC V1 net-next 3/4] net: Let the active time stamping layer be selectable. In-Reply-To: References: <20220104014215.GA20062@hoboy.vegasvil.org> <20220404150508.3945833-1-michael@walle.cc> Date: Tue, 05 Apr 2022 11:01:11 +0200 Message-ID: <877d83rjjc.fsf@kurt> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha512; protocol="application/pgp-signature" X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED,SPF_HELO_NONE, SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --=-=-= Content-Type: text/plain On Mon Apr 04 2022, Michael Walle wrote: > That would make sense. I guess what bothers me with the current > mechanism is that a feature addition to the PHY in the *future* (the > timestamping support) might break a board - or at least changes the > behavior by suddenly using PHY timestamping. Currently PHY timestamping is hidden behind a configuration option (NETWORK_PHY_TIMESTAMPING). By disabling this option the default behavior should stay at MAC timestamping even if additional features are added on top of the PHY drivers at later stages. Or not? Thanks, Kurt --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQJHBAEBCgAxFiEEvLm/ssjDfdPf21mSwZPR8qpGc4IFAmJMBVcTHGt1cnRAbGlu dXRyb25peC5kZQAKCRDBk9HyqkZzgsMiEACJ6hgiPJnF7jCixnXIaxDdO+mW5fZI JPBCVnKJsrETFpGY2/cSr0aFN2KeNvF9S15jw36a+Tabnv6wNnYWnhqOdsyGBtE4 wQUfJrNCJ6BHx9qUmgY+WbLdUEvXMnEx+ko/co9FCFWijd94M4ctaEdBbxq3WfQS 3fzMpHssQfITgfgeaf+j+k+zR2i7UotKvQ7nTTZDiBgbQ1xn+4cDbR7uZZNPIKqj IC+R8BcOJENXkm8HwB/JvcRhOynsPFCJjHoHqM8N4v2DXFRnV8pfzceyZO6Lr5XF BEpaWfAHjcmnbzhC91oASXE5usbEqpQE5tAYK43m872DaHh+s1p4d4b3IzZU5uwt rx8zheaRta4gqUdaJo5qQkvKdD2CAYyK9O3v0rQMJRrTCK3Z3sZM/IMWNsEOqdVP QP1GxPByDHwwOsTJB4/v4DanuF39hSrZ4Ym2mi/PX76LmMZoL10JDzaU0rdg56nf Vg0EkwnCDxYSZJpB3r+6zFMNKDQyA6uOJAeKpaEB4kpLUMjZsRfZOgP1FJW1Ndgc Cggk0EckGKx5+zjTcHnVpr7VEVrSfeBGFnujzUx3TlduYJ8XBxLv7saUUlpE0O1O TkXxhxodllu2X4eis/5mIctYGgWl2XL/KZUD3Uws9a0PLLVZwuTxsEcS6ov00eKM NfqGdBj8KceuNg== =dVoz -----END PGP SIGNATURE----- --=-=-=--