From patchwork Mon Aug 6 16:40:37 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrey Konovalov X-Patchwork-Id: 10557401 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3EF1B13B4 for ; Mon, 6 Aug 2018 16:41:00 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2FE5F29918 for ; Mon, 6 Aug 2018 16:41:00 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2D9252993B; Mon, 6 Aug 2018 16:41:00 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.8 required=2.0 tests=BAYES_00,DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI,T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C69A129944 for ; Mon, 6 Aug 2018 16:40:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387570AbeHFSuw (ORCPT ); Mon, 6 Aug 2018 14:50:52 -0400 Received: from mail-wr1-f67.google.com ([209.85.221.67]:40536 "EHLO mail-wr1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387571AbeHFSuv (ORCPT ); Mon, 6 Aug 2018 14:50:51 -0400 Received: by mail-wr1-f67.google.com with SMTP id h15-v6so12989382wrs.7 for ; Mon, 06 Aug 2018 09:40:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=YBeH5wb0hNzlivAoVU1htfthx3SJVx7ZblkVtJGW9ZA=; b=ZfDD4//e+nKU3Jk48Adjac7R2nCCq1HmUAoIcnD0wQGnnbJdjWUlD2Aytat6evC4LS VVCRE4GradGfF7mcdUatpkfkbS3oUExjCB/oJKRWeOgr7D4ns0ZdM/ecmR+rDEiJijY5 S5Sn5a3jb2HgFLP5cDZykHlUrABGLypRXZBcf03L4NF2mJDMuWsf2I0cBuuPGn4R+s/1 lH0SekuGSZvecQg1AancsSigJdj1Yu9rEv5ENqjlxw1iJ0P7zjekaIIfk0F3yh9DLnKi TZpN0Zr9j707UzVmqzktL466xYpXyXTkduX6zmE7Ee23DujIeKOV8ZkSblww3yE0f9TH 8Z4w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=YBeH5wb0hNzlivAoVU1htfthx3SJVx7ZblkVtJGW9ZA=; b=G11t34WwepYYNtn9L0nPnodPT1/kgxypBh4kjJaVUdxFUswO3VTjK7mtmU9cETeKsC LM67tQqM+eC4dy6gDzN9SAvXbt8kZsyoA1VEF1xbXliT2ZT3Fz8IzpHu7RBOFBbo9DxY nKV57XZ/crXH8/Su77rZBpMb1ZsfaYp5zEJvMF76B0/pB6d/hHjxq1ZN1hWXhfTS/PH+ hfe5T817YQGnMKb0wHuVPomm8tc1IQJhVpA3pcaftE8e9VW6keERhu0qjsBJfdEQfGh/ nuIGTtZH4d0RWG25KVh4rhRGU+zrJNeR83ZQ5r24c70BocZl/jaUcH8Nyod1ES9gBZ1p TcDA== X-Gm-Message-State: AOUpUlEY82sQ3DtLVCl7RHeksp38dXyoJjdJ6WcrJ3tPNtL0ShlFQPVr 2QhqwUiTVdHgppQhfQw1JpKIFw== X-Google-Smtp-Source: AAOMgpcsiooZAsa7Co5DL90XZQSeO75lLqOzA0ZY/k14f/rzEmHb2gPZjF9ufPSZOUffbBSYdCeBEQ== X-Received: by 2002:adf:91e5:: with SMTP id 92-v6mr10363242wri.124.1533573656582; Mon, 06 Aug 2018 09:40:56 -0700 (PDT) Received: from andreyknvl0.muc.corp.google.com ([2a00:79e0:15:10:84be:a42a:826d:c530]) by smtp.gmail.com with ESMTPSA id 66-v6sm16385790wmw.34.2018.08.06.09.40.55 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 06 Aug 2018 09:40:55 -0700 (PDT) From: Andrey Konovalov To: Catalin Marinas , Will Deacon , Mark Rutland , Robin Murphy , Al Viro , Andrey Konovalov , Kees Cook , Kate Stewart , Greg Kroah-Hartman , Andrew Morton , Ingo Molnar , "Kirill A . Shutemov" , Shuah Khan , linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Dmitry Vyukov , Kostya Serebryany , Evgeniy Stepanov , Lee Smith , Ramana Radhakrishnan , Jacob Bramley , Ruben Ayrapetyan , Chintan Pandya Subject: [PATCH v5 02/10] uaccess: add untagged_addr definition for other arches Date: Mon, 6 Aug 2018 18:40:37 +0200 Message-Id: X-Mailer: git-send-email 2.18.0.597.ga71716f1ad-goog In-Reply-To: References: MIME-Version: 1.0 Sender: linux-kselftest-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP To allow arm64 syscalls accept tagged pointers from userspace, we must untag them when they are passed to the kernel. Since untagging is done in generic parts of the kernel, the untagged_addr macro needs to be defined for all architectures. Define it as a noop for other architectures besides arm64. Signed-off-by: Andrey Konovalov --- include/linux/uaccess.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h index efe79c1cdd47..c045b4eff95e 100644 --- a/include/linux/uaccess.h +++ b/include/linux/uaccess.h @@ -13,6 +13,10 @@ #include +#ifndef untagged_addr +#define untagged_addr(addr) addr +#endif + /* * Architectures should provide two primitives (raw_copy_{to,from}_user()) * and get rid of their private instances of copy_{to,from}_user() and