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=-4.3 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 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 4C279C433DB for ; Thu, 21 Jan 2021 05:43:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F1B4523788 for ; Thu, 21 Jan 2021 05:43:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727761AbhAUFms (ORCPT ); Thu, 21 Jan 2021 00:42:48 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51520 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726641AbhAUFlj (ORCPT ); Thu, 21 Jan 2021 00:41:39 -0500 Received: from mail-qt1-x835.google.com (mail-qt1-x835.google.com [IPv6:2607:f8b0:4864:20::835]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 132A1C061575; Wed, 20 Jan 2021 21:40:57 -0800 (PST) Received: by mail-qt1-x835.google.com with SMTP id z9so786004qtv.6; Wed, 20 Jan 2021 21:40:57 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=wc4BdW8DfiuiCxiD8pUU/hmHmIuYrd2v3NyDbHD7XFE=; b=vF0pRSSd1MrruFpO5/ZNN9Te3xVAxmqYQG+BEa2o4Pn6hCDbkt8CT7v2a01G+6Vdb7 811HKrFHMB4NKlKusxwOo786bDC1USVA6KRJ3SKbJtLGfzCA3s6N6Pvyv/9B8Vh8ucMS OPgUIypBE1pOSkBYdIAPixnqexehLNS24q5tciiSijGUIrBKszE+hdqKOs3gYBwxTZUI /nKM0wCqTGdbCPogxueZw17oTPjZ/kwgvd7Tqzr8kNH1C0y1Tr4Prfd9C4qwWBGZbwIZ OnOM1OSirkdX11DqJGeYeaVFM46+HYJzAA8+Ngp+6cLXiP2UlJU9kzwDjsTeLNvzTYKh 4cJA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=wc4BdW8DfiuiCxiD8pUU/hmHmIuYrd2v3NyDbHD7XFE=; b=ijCqCuI3yZzQipIxRS/UfjwrLB2ZtJ05VdN4X4tZ/Kc+XPoTpTzDGlC0sKMJP981oL l8CmXrBoUwq3cUhl17/J7jkHugc4/eu3zAh2uoqQ3SwKJhkAAmfca6pu8uJUQwkfCepS vhDrE/F0QCswedjfM1vfjpaEe2qjAPEBSdB6ZnTW3MqmEUqQ4N2KV/rVWVSGRw0xujgi DCtlEZQe+RlwemX+22VaF6aJ7gAQnasm8hz5gpgVwOD/hZT5MdNu4NldesStjN8AcftY Qzt0xkHOasERQNkovbFfAsdAebhemxvBqhirl9YKKiDwTxgX2Wsgd02uumzpGk1jEq0w Debw== X-Gm-Message-State: AOAM533uWeCjDqNK9/7yU6uSo2HAHWJok8pQvmpKgfhYOCdbS3UH1mem TXVG2iUWvrF//yL5gFAon+I= X-Google-Smtp-Source: ABdhPJzXse0K6Rcv9KIoDD5E8H/hDibE2NCTH+S9FlEBa/EVR5q216Nbi5ehVdT011WGAVK/z3qTGA== X-Received: by 2002:a05:622a:4d1:: with SMTP id q17mr12358188qtx.272.1611207656402; Wed, 20 Jan 2021 21:40:56 -0800 (PST) Received: from [192.168.1.49] (c-67-187-90-124.hsd1.ky.comcast.net. [67.187.90.124]) by smtp.gmail.com with ESMTPSA id 2sm2728926qtt.24.2021.01.20.21.40.55 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 20 Jan 2021 21:40:56 -0800 (PST) Subject: Re: [PATCH V5 4/5] kbuild: Add support to build overlays (%.dtbo) To: Viresh Kumar , David Gibson Cc: Rob Herring , Pantelis Antoniou , Masahiro Yamada , Michal Marek , Vincent Guittot , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Bill Mills , anmar.oueja@linaro.org, linux-kbuild@vger.kernel.org References: <6e57e9c84429416c628f1f4235c42a5809747c4c.1611124778.git.viresh.kumar@linaro.org> <20210121004955.GE5174@yekko.fritz.box> <20210121041300.ocerhqaieytj6gds@vireshk-i7> From: Frank Rowand Message-ID: <84f85320-b9cd-6ebc-671a-d21b5266d264@gmail.com> Date: Wed, 20 Jan 2021 23:40:54 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20210121041300.ocerhqaieytj6gds@vireshk-i7> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 1/20/21 10:13 PM, Viresh Kumar wrote: > On 21-01-21, 11:49, David Gibson wrote: >> If you're using overlays, you probably need the -@ flag, for both the >> base file and the overlays, which AFAICT is not already the case. > > I think the idea was to do that in the platform specific Makefiles, > unless I have misunderstood that from earlier discussions. So a > platform may want to do that per-file or just enable it for the entire > platform. > Yes, that is correct. For drivers/of/unitest-data/Makefile, we have entries like: DTC_FLAGS_overlay += -@ DTC_FLAGS_overlay_bad_phandle += -@ DTC_FLAGS_overlay_bad_symbol += -@ DTC_FLAGS_overlay_base += -@ DTC_FLAGS_testcases += -@ -Frank