Received: by 2002:a05:6a10:22f:0:0:0:0 with SMTP id 15csp246035pxk; Thu, 1 Oct 2020 01:01:29 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxq8lcTwINct5uLktR0ORrwmG+LVDsiCowlLXhIAnNB3+9ANM8XLddS1aVkaDsQVse6+qSK X-Received: by 2002:a50:baed:: with SMTP id x100mr6700420ede.384.1601539288761; Thu, 01 Oct 2020 01:01:28 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1601539288; cv=none; d=google.com; s=arc-20160816; b=TuwsmcNGmQ/NVBfatFWWjk/U85Hc/pocR8zA28yob496rINiegRyAlw3opIDwqXdMH kvS5koS6TFxEJPNJbii9kWVqY+zJE0p2wpr3VarSbxms6U0KPdApehRWalLQwHNcxFBC bAkWk7rhBfT1tZjZo6u/tixK8uSKN8SnOchhyId6U58UjZ8VCwV9k8vC+RYOCNP37XtJ wiQTqEH9p7/BVqs40P1jFBVN/QpyTqhNvs2t5Jh9Ml6bEXX6aWFjlo8v8zObAO9MzDw+ t4YM5TY81BH73M/361bNoR+tBr3ModjLWsNKM2AhaphJStfRL/6JBGM54rUuGJzPUKHN j/cw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:user-agent:in-reply-to:content-disposition :mime-version:references:message-id:subject:cc:to:from:date :dkim-signature; bh=kJDll8669MgwGkGlatIF8vY03H/D/9DxkpS4HR8psz0=; b=sQ81qwz+v+a0Q8pPSDBc4DUsmTkiaD7BJ5sH6YXYFKXX0+gaoYoqZMQaW2qtU/LJv/ 6uXuf/YvxD5S27jWxqJ3lWvp2dsxh58lLY3Jt0GKudZWgEnvRI8yIVwMJKIPqsuFF3+V 5vgXOPDVk3gUPhL3kIRkaG1UUrUK4h7I0EdyKTZ1Idqe6dR9WJ14na0ll7VgzI8AwB2e fOnrm1rQPMyNJ9rtZBX7tMSsd2ucTIrvMxX2Y3u9OHZFwIjTxNxjBsl76WjgUMp/MlOz uABnO9TNVUwGOEe6DQkL62EBvWd4aVg0bXL25bd2HqrLXbJqbmZQqhKhM+N3OpRz3d5c whHw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b=mEWWAXxy; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id m13si3189950edi.602.2020.10.01.01.01.06; Thu, 01 Oct 2020 01:01:28 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b=mEWWAXxy; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731564AbgJAIAD (ORCPT + 99 others); Thu, 1 Oct 2020 04:00:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54364 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731539AbgJAIAD (ORCPT ); Thu, 1 Oct 2020 04:00:03 -0400 Received: from mail-ed1-x544.google.com (mail-ed1-x544.google.com [IPv6:2a00:1450:4864:20::544]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A4182C0613D0; Thu, 1 Oct 2020 01:00:02 -0700 (PDT) Received: by mail-ed1-x544.google.com with SMTP id c8so4633413edv.5; Thu, 01 Oct 2020 01:00:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=kJDll8669MgwGkGlatIF8vY03H/D/9DxkpS4HR8psz0=; b=mEWWAXxyBizecMRZilDRasV4hyuAjJCc3TEa7CNG5P+0EUX0/qpkD0U0sDer0i/frK 58ijdsTThYNUFvgAhSJnI4I8I92FrBQodvuOHLJGtDna6DrLRp0089kJSXTGVEJ5+ob4 yyaTlpOXHNvU5+dQEhWbjdjhdO5zE/3AeJjEouHsL91WqdFDxb0tDBKGw3qGNVVblWri 6aytBAy065XQfrdtAteH1cDyx9Et2wbSl2MAMGZJKD/6RR4ELMO/5k512H1Zmd/4S2Xf WUIR3uhFwfSEFWmNMSVauf0uNqvXgwKx0CzSsB3vaqAwaFNaYKfJqJB063cCba23kZnK 7dig== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=kJDll8669MgwGkGlatIF8vY03H/D/9DxkpS4HR8psz0=; b=lBcuo5pi8x1YMZw4XJncP2PzceC48YENzz60WCBnROTo/uZi/lgEBfnlcxDrrLZgB1 k9BnlKyX21RIFoQkvblNcaS8CGzpdUYvKz5H1G7vCnLa1sQYmHk0CmIsUEQ6k0gcaf7p 9yHC/X+T3HEoucI4NS4FIdqVCB4E2ESm9UAmSl6g4FaYkW8jXsSeGFXXGzJrWAyUObuJ G7qIdx/dcmGhzwuzgdLWP1gNUFVn/PLRWZsNRIivDuZ730Gm9E8OCvz9XGF8xsx1j1Rg jtL1S17BvzzAwSC5RML3HdDFebQ8vZVFreZEFzrhqpJEeT6upEtbB51zk/SsYRPcKoNa dxww== X-Gm-Message-State: AOAM531VFAfbECIwTQs8vMEEdWfLnSC5iCSbE8Jzt9PsuL12N5HMt+QH Jjh3rAH9wAWdD+jDI+rdFAM= X-Received: by 2002:aa7:c1c3:: with SMTP id d3mr6962876edp.228.1601539201381; Thu, 01 Oct 2020 01:00:01 -0700 (PDT) Received: from localhost ([217.111.27.204]) by smtp.gmail.com with ESMTPSA id t18sm1230119ejg.76.2020.10.01.00.59.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 01 Oct 2020 01:00:00 -0700 (PDT) Date: Thu, 1 Oct 2020 09:59:58 +0200 From: Thierry Reding To: Dmitry Osipenko Cc: Nicolin Chen , joro@8bytes.org, krzk@kernel.org, vdumpa@nvidia.com, jonathanh@nvidia.com, linux-tegra@vger.kernel.org, iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v3 2/3] iommu/tegra-smmu: Rework .probe_device and .attach_dev Message-ID: <20201001075958.GB3919720@ulmo> References: <20200930084258.25493-1-nicoleotsuka@gmail.com> <20200930084258.25493-3-nicoleotsuka@gmail.com> <20200930153131.GB3833404@ulmo> <20200930161033.GE3833404@ulmo> <36946786-38c5-54d4-07f5-2407c39aa01c@gmail.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="Y7xTucakfITjPcLV" Content-Disposition: inline In-Reply-To: <36946786-38c5-54d4-07f5-2407c39aa01c@gmail.com> User-Agent: Mutt/1.14.7 (2020-08-29) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --Y7xTucakfITjPcLV Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Sep 30, 2020 at 07:29:12PM +0300, Dmitry Osipenko wrote: > ... > >> Secondly, I'm already about to use the new tegra_get_memory_controller= () > >> API for all the T20/30/124/210 EMC and devfreq drivers. > >=20 > > Also, this really proves the point I was trying to make about how this > > is going to proliferate... >=20 > Sorry, I'm probably totally missing yours point.. "what" exactly will > proliferate? Making use of this lookup-by-compatible mechanism. If you provide a function to make that easy, then people are going to use it, without even thinking about whether or not it is a good idea. Thierry --Y7xTucakfITjPcLV Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEiOrDCAFJzPfAjcif3SOs138+s6EFAl91jH4ACgkQ3SOs138+ s6HvIQ/+JbyTifAB7AT15uE5vSsP5C4aDS4Zf+b3yMzEClBY7F2gR7gZNz0tKeJ5 3j2SNVw4pxFJiyxSIHP+YCwCmVEOoEBOuDhARo76U1nWKNSMlIxXFyi/xOso1OaG HNhILPmvmk4Y41LQ96VzKpHtf4NvafW4oQ244t1E15ZlT2nR5+OQzFKN6xDYhujR LkXGrv5EdRYL9QkAoZ/cTxfb1hsqmviebkVXWJTBPS2cErsg+HtVRXChFLAlZgNL RXVMivkZ7FdCHqMSpaypAaUDGKLWI16DjPu1woUeXjHh9CjbL+YRa5eC78YgLye9 B5uXXzLBCE8SrxR7xjTSnDd+ZBAKQ2Z7N+cz1EzbxBI79bZ9lFqwONt1Cjr3+3pW Im1mGMr0hjveQK4JPdgT4bGyLKXKf7Jfau5bTLTI+UxZyHXCUfqsuP+yU0aHNRiP dp9X8+rMuapK+jG9NKEXj0a/qgLvr3DXV5pN2cCjFHBM7MRHO+oPsAE22rd8gkaP EsNbJ9o5Fpxn2nqyKX5GOzzpyPmhaPM+xLoKVl+YYJdaueMvAw5wGq+sZsdbrT5n KqLTZicexxYUhofOLI0hZJJikHWY4y0UB9IbJDOuhrit61cD57UqGtvPmfIcT4gP 2rO0fNqtBsHuXrWhjk4fqQL9PATsQLENdxB0TMX+0zIVyfJTuTA= =wRou -----END PGP SIGNATURE----- --Y7xTucakfITjPcLV--