Received: by 2002:a05:6358:1087:b0:cb:c9d3:cd90 with SMTP id j7csp1492588rwi; Thu, 13 Oct 2022 14:41:41 -0700 (PDT) X-Google-Smtp-Source: AMsMyM5anpv6KqHcXGY7cAiXvFC6fFQWF706eK8eJVtVU+gy2IDseE0QOtiQ1DvOxsm6AEF3C75h X-Received: by 2002:a05:6402:b3c:b0:458:f680:6ab8 with SMTP id bo28-20020a0564020b3c00b00458f6806ab8mr1544896edb.267.1665697300950; Thu, 13 Oct 2022 14:41:40 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1665697300; cv=none; d=google.com; s=arc-20160816; b=zvoPQL5SGqMf7fRHIHqyk3L84sDTyUKaXyvQ3Ri7xeZcB8h+sOgFWOsw60fIajo3Z7 YM+Mhmjvue/n73Ux6fhBLprL4rgt1ZKMzMAZRb+ozUsA3H2VGk9Mo09fHRttLIkkBqbZ 13ls/zIHhlnGBUCd8KvZ3W/RXMhtvN5uFNCdj3g6kqbwn4/pa2iXTdKVu8aEyfXc7uqa pcNw63taHz0XiLYvzhOdRQ4Cms1odWKn/EvOUKYE4p2iCNFmHztyI3tx788i5TjSlsVt 6cH9n+iNT7rdhnKEqTIRkSvT28XwqWR44RXcb8WMe/wi5NQ9CnhMYtJRo15bV6fRw8Hx //yg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date:dkim-signature; bh=CGvXzyfaWxsSx0ELvyCr5bspehD/xx7xIHWSGqJXxeE=; b=PlgPTVhn9+/XLXiAblt4CyQ9tqfpGo8XjaFioSI9xQYl42pHImz5FuZ54fH0Y58H+4 APfXvh+Aq1HUXe2nUYn37nxVq7sWHYUy0/WYbEvh0ZgpLDBOPwnU1XSh1goKqmH/OLve T8BHdsbW9GKfPnL0T8r1TkwTr4NdoZPIcX8MJv4Rrj4VMO5Y/eb7ICQjvgsZ14ZRD5pq HZfG0RN5LvOgo38Fg7wEDd16sntFagQPaTz8P82oMXUXvr3K/QIrQYucFLdXkIZD4zwB Lq9Frdc/MWKe02suIsV2aaL7aAuGFzK+hkLTHANXaVCxmJzVAHZkISX6WC0kByuWqCy5 pbrA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@chromium.org header.s=google header.b=CYbwTQUV; 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=NONE dis=NONE) header.from=chromium.org Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id xg11-20020a170907320b00b00781c229eee4si724132ejb.936.2022.10.13.14.41.15; Thu, 13 Oct 2022 14:41:40 -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=@chromium.org header.s=google header.b=CYbwTQUV; 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=NONE dis=NONE) header.from=chromium.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229754AbiJMV0f (ORCPT + 99 others); Thu, 13 Oct 2022 17:26:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48782 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229720AbiJMV0d (ORCPT ); Thu, 13 Oct 2022 17:26:33 -0400 Received: from mail-io1-xd36.google.com (mail-io1-xd36.google.com [IPv6:2607:f8b0:4864:20::d36]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A46B648A1B for ; Thu, 13 Oct 2022 14:26:32 -0700 (PDT) Received: by mail-io1-xd36.google.com with SMTP id e15so2476418iof.2 for ; Thu, 13 Oct 2022 14:26:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=CGvXzyfaWxsSx0ELvyCr5bspehD/xx7xIHWSGqJXxeE=; b=CYbwTQUVAFGPDAams5vEG6YANf8ufOlvCE2X2ftvni16//YJRbDjCSYOrdWiFJduzx ctwOznzMbaEbqo8W4ciqa64lgUbbHtVvC8wj/1Pb4UsHXGujE5UC+Wt3TFg5pmiziECU +ohjP5/CaEnuyHOVYPU3yj/VeZ9TB2/kk7GZY= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=CGvXzyfaWxsSx0ELvyCr5bspehD/xx7xIHWSGqJXxeE=; b=USdHWYQZp5OQqVTnti1tM7PTjZWicu3EaQG06Vn2+04lxT23XnLcyMFWOp0eHLE/pT kBW/hm7j1oR2gVSDyTOxhuqVDiR2nO/WnecvBhtlrBBl88bRgQRr47MEO9I5YIZsVg0K fc/r1jGFsCh2lMLsaJOjWat6KJ3yo3Dwm1mWkT0oOraOFUhiJMrTevqCB1aH53WzLOw/ g83Pf8ekQYGgl9MKwxTrXelB2jauuV2e2kjA1M2SkUnLPw633Ee/uFRxTIyf0hIPklKd qQulKUv6CR4vTKVzc/URqIhKTWkKUASQS8en4/q+GhKr0S3CndKNnBLBe2Qumd+pJX3U kPjA== X-Gm-Message-State: ACrzQf0P6NZRCZ9BEoig+hFk5+QAfIbTI0+2M5Zk+PDT5ifZfiVOeWuL E8OxWUbIMmlooumkPPvG7paqyjtRfl0avA== X-Received: by 2002:a5d:8052:0:b0:6a5:4b18:ac03 with SMTP id b18-20020a5d8052000000b006a54b18ac03mr886396ior.153.1665696392089; Thu, 13 Oct 2022 14:26:32 -0700 (PDT) Received: from chromium.org ([100.107.108.164]) by smtp.gmail.com with ESMTPSA id y19-20020a056638039300b00363c1d1ac05sm394535jap.27.2022.10.13.14.26.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 13 Oct 2022 14:26:31 -0700 (PDT) Date: Thu, 13 Oct 2022 15:25:58 -0600 From: Jack Rosenthal To: Greg KH Cc: Julius Werner , LKML , chrome-platform@lists.linux.dev, Stephen Boyd , Tzung-Bi Shih , Guenter Roeck Subject: Re: [PATCH v12] firmware: google: Implement cbmem in sysfs driver Message-ID: References: <20221004003811.4075765-1-jrosenth@chromium.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS 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 On 2022-10-06 at 08:33 +0200, Greg KH wrote: > On Wed, Oct 05, 2022 at 04:26:55PM -0700, Julius Werner wrote: > > > If the kernel is reporting a value, that value needs to be documented > > > somewhere. If the kernel is acting on that value, it needs to know what > > > those values are. > > > > > > In this specific instance it seems that the kernel knows a subset of the > > > values, and some random userspace tool knows all of them? Think about > > > what you would want to see here if you knew nothing about this at all. > > > > The kernel doesn't know any of the values. The kernel is just telling > > userspace that spaces with these IDs exist and providing an interface > > to access them, it's not supposed to know what any of them mean. > > Ah, ok, that was not obvious to me, sorry. If the kernel is just a > pass-through, no objections. Does this mean PATCH v13 looks good to you? thanks, jack