From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from 008.lax.mailroute.net (008.lax.mailroute.net [199.89.1.11]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id ACB7C14F9E1; Wed, 3 Apr 2024 16:27:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=199.89.1.11 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712161622; cv=none; b=CcBE1+L5MK6vG8pkC6VelUHfwL3tlqfm43vKY0pg14ehrECtFh15yrlEotvjtcygo4/uZdqLrMO7nqNeolKvncYpOpMM/zNWc8hOKj7XlApycfSbP26i5UKRBywaZ8hVUkM/20FC3nGuLtCu3uilpMnsGid94/YfIjBdI4rLzXY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712161622; c=relaxed/simple; bh=GQ/Rb2a92J5Ir4blww52T7ahTeQB0Ow+ZtEZv9AjOxk=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=cbzeBOxkb2mniRYaMBD1ZXYnbKmsUtvL7il2r78qmLQAx8BYDVgnGW/aNDLzn9OXDsb9XXUSioEreYIkwSQxA3ZRfBumvKQhXWcWVhgJ4Bp/pX30ubLL88aT9jnJlDNqurYqlt0Yp49D8xYVFR9EIYAQ10m+zwV0iY5Y+HKXn7I= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=acm.org; spf=pass smtp.mailfrom=acm.org; dkim=pass (2048-bit key) header.d=acm.org header.i=@acm.org header.b=k+KaayxM; arc=none smtp.client-ip=199.89.1.11 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=acm.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=acm.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=acm.org header.i=@acm.org header.b="k+KaayxM" Received: from localhost (localhost [127.0.0.1]) by 008.lax.mailroute.net (Postfix) with ESMTP id 4V8qs008kHz6Cnk8s; Wed, 3 Apr 2024 16:27:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=acm.org; h= content-transfer-encoding:content-type:content-type:in-reply-to :from:from:references:content-language:subject:subject :user-agent:mime-version:date:date:message-id:received:received; s=mr01; t=1712161617; x=1714753618; bh=rJr6c2TsvOVSrSHj9bLAu908 h6x2a2x3rAYmyWwx6bo=; b=k+KaayxMp/CMHphAZmsbICFQjXsFzckonBXBQeAt uCYoQJPhL1Fjz+21DpG5HXoJMTh3RsMfpJ1ebaJ6vEFZCka8qHWGCmmmV7s250bg UcSUqkqLboAai7LcwYTf3IW17NnRWZrDkuhxFZ3/bG6QRj624kNhTi4cHDtNU7gP r4MREbTQt5kbVzIyXskKiGh3xqrlaKNIYzOqKeNJGb5N+7C5ADL1lsEJ73vvn3qT qCk5UM0aJvP+ZqoJ9gew+U7YFeAtzpPzcl/C1g2jmtwZmu1WN84q8XXOth2LbwNU vD6ZFarWxUQlpO+T8iJ/QfBeriG+KwXxJt3x+oGw/YKOLg== X-Virus-Scanned: by MailRoute Received: from 008.lax.mailroute.net ([127.0.0.1]) by localhost (008.lax [127.0.0.1]) (mroute_mailscanner, port 10029) with LMTP id gZSzaLgRLrrU; Wed, 3 Apr 2024 16:26:57 +0000 (UTC) Received: from [100.96.154.173] (unknown [104.132.1.77]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: bvanassche@acm.org) by 008.lax.mailroute.net (Postfix) with ESMTPSA id 4V8qrw10xhz6Cnk8m; Wed, 3 Apr 2024 16:26:55 +0000 (UTC) Message-ID: <66431679-26f0-48eb-8303-35e151481292@acm.org> Date: Wed, 3 Apr 2024 09:26:55 -0700 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 1/1] scsi: ufs: Remove support for old UFSHCI versions Content-Language: en-US To: Avri Altman , "James E . J . Bottomley" , "Martin K . Petersen" Cc: Christoph Hellwig , Bean Huo , linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org References: <20240327071714.757-1-avri.altman@wdc.com> <20240327071714.757-2-avri.altman@wdc.com> From: Bart Van Assche In-Reply-To: <20240327071714.757-2-avri.altman@wdc.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 3/27/24 00:17, Avri Altman wrote: > UFS spec version 2.1 was published more than 10 years ago. It is > vanishingly unlikely that even there are out there platforms that uses > earlier host controllers, let alone that those ancient platforms will > ever run a V6.10 kernel. Thus, remove support of host controllers prior > to UFS2.1. According to this website, Pixel 1 devices have a UFSHCI 2.0 controller: https://www.gsmarena.com/google_pixel-8346.php. There may be other smartphones that have a UFSHCI 2.0 controller. Hence, I'm not sure we can drop support for UFSHCI 2.0 controllers from the kernel. Thanks, Bart.