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=-3.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no 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 8BA7FC433DF for ; Wed, 17 Jun 2020 06:07:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6771F2082F for ; Wed, 17 Jun 2020 06:07:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="uPykhRwT" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726835AbgFQGHc (ORCPT ); Wed, 17 Jun 2020 02:07:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37924 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726497AbgFQGHb (ORCPT ); Wed, 17 Jun 2020 02:07:31 -0400 Received: from mail-lj1-x242.google.com (mail-lj1-x242.google.com [IPv6:2a00:1450:4864:20::242]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6F02AC061573 for ; Tue, 16 Jun 2020 23:07:31 -0700 (PDT) Received: by mail-lj1-x242.google.com with SMTP id n23so1365553ljh.7 for ; Tue, 16 Jun 2020 23:07:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=k2ZEmHhrPs/ulmpdqloJHox+N+2D34dGnYoIhwM09Oc=; b=uPykhRwTSAish44ZDPcrnTHTYCxTAoPDQs0s4pqD9Gz+ToeIJigh/T49FDZ4AhuDkX ZFti8QWz6Uspvl1RbUitrc4JdzWcICXShXq9TFZKvcMSclCNwY/iHqtBXrDk4tBAazFI uzfQqSxSYL7XNi/zx0qIUgOGebOCQ7N2AuzBr3yWfXTTxy3Q/Cegh2vVDSZV4dM3+onD KnZocUo2gfKgj2zcrY/20wezao3Gn/JjFkIG9XieO3vzKrjsy3BR2h0UoWhafeGP6dbV CzJ5DImXZwKUKFLzbM7oo8fP0qvdLZQHpNFDTZbcD0cNDOwiAUtY3AQAhkx8zFdlZ7Kn eu+w== 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=k2ZEmHhrPs/ulmpdqloJHox+N+2D34dGnYoIhwM09Oc=; b=JvmneUn+pbd4t9auyC1jlY4xNzF1R5O1ZKlcSwNWJPEPIryUa3OxZcL2Jrz/GK/ubl +cg2OTCtw/jtNr7KqEGLjBvVAsRTAWOJ7HSGZBHV6avi1eEb9AVykgA090vywPigo1Ji vQHzS0jRBbYiYE8a26QHa02t26V3pTWyHFrkc4lbKhXzuZgeNGWMiXkBNFRz12BlYK4D kHw+4ZPZW9iUQIPMPpN+vXJqhUlZFQbUWdLxqQNdbXTPw7/uafXkGAyu1V2zaedsezRX qgknrfn2bCHrF3pa0QmhPfYRhw/A3it94XUyfmKSiUWsC21P4TxVowYg7gOKGcVQJBvi U7EQ== X-Gm-Message-State: AOAM533lyg1ESFTKa1ZE59a4j1plh6ae8EyYWPsLCAHFzpHfnx+eO25T jsb/cEci1bmihXjncqxpA8+xPBla3vI1RcSy8Caoew== X-Google-Smtp-Source: ABdhPJwVGClABjAHoGqIadqLzIigFwQpGKlcnffd1cvXC97YTGleZl7YASG+am+g3y0+dLrdmn9YK7ztFIvmDc5Os+w= X-Received: by 2002:a2e:5c47:: with SMTP id q68mr3402768ljb.30.1592374049915; Tue, 16 Jun 2020 23:07:29 -0700 (PDT) MIME-Version: 1.0 References: <20200604175851.758-1-maxim.uvarov@linaro.org> <20200604175851.758-2-maxim.uvarov@linaro.org> <20200616205017.GC20943@linux.intel.com> In-Reply-To: <20200616205017.GC20943@linux.intel.com> From: Sumit Garg Date: Wed, 17 Jun 2020 11:37:17 +0530 Message-ID: Subject: Re: [PATCHv8 1/3] optee: use uuid for sysfs driver entry To: Jarkko Sakkinen , Maxim Uvarov Cc: Linux Kernel Mailing List , "tee-dev @ lists . linaro . org" , peterhuewe@gmx.de, Jason Gunthorpe , Greg Kroah-Hartman , Jens Wiklander , linux-integrity@vger.kernel.org, Arnd Bergmann Content-Type: text/plain; charset="UTF-8" Sender: linux-integrity-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-integrity@vger.kernel.org On Wed, 17 Jun 2020 at 02:20, Jarkko Sakkinen wrote: > > On Thu, Jun 04, 2020 at 08:58:49PM +0300, Maxim Uvarov wrote: > > With the evolving use-cases for TEE bus, now it's required to support > > multi-stage enumeration process. But using a simple index doesn't > > suffice this requirement and instead leads to duplicate sysfs entries. > > So instead switch to use more informative device UUID for sysfs entry > > like: > > /sys/bus/tee/devices/optee-ta- > > > > Signed-off-by: Maxim Uvarov > > Reviewed-by: Sumit Garg > > Reviewed-by: Jarkko Sakkinen > > Sumit, are you able to test these easily? Yes, I could give them a try. Maxim, Could you share fTPM TA tree which I should use for testing? -Sumit > > /Jarkko