From patchwork Thu Nov 8 14:36:08 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrey Konovalov X-Patchwork-Id: 10674359 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 7D3A8109C for ; Thu, 8 Nov 2018 14:36:27 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6CEE326C9B for ; Thu, 8 Nov 2018 14:36:27 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 60DD629C40; Thu, 8 Nov 2018 14:36:27 +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=-10.5 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE, USER_IN_DEF_DKIM_WL autolearn=unavailable version=3.3.1 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 113A626C9B for ; Thu, 8 Nov 2018 14:36:27 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id C87556B05FF; Thu, 8 Nov 2018 09:36:23 -0500 (EST) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id C5A016B0600; Thu, 8 Nov 2018 09:36:23 -0500 (EST) X-Original-To: int-list-linux-mm@kvack.org X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id B21646B0602; Thu, 8 Nov 2018 09:36:23 -0500 (EST) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from mail-wm1-f69.google.com (mail-wm1-f69.google.com [209.85.128.69]) by kanga.kvack.org (Postfix) with ESMTP id 5EB346B0600 for ; Thu, 8 Nov 2018 09:36:23 -0500 (EST) Received: by mail-wm1-f69.google.com with SMTP id t22-v6so977892wmt.9 for ; Thu, 08 Nov 2018 06:36:23 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:dkim-signature:from:to:cc:subject:date :message-id:in-reply-to:references:mime-version :content-transfer-encoding; bh=CyHAJ7bm8yqliTwjL59/PERrC1/EJlU4Hst47qO5nm4=; b=Mv7eCI13VHdYqDMeak2qocXnoU5ZUEY1DktvrkAHlyQPgp4Nxt32C88IZmM44JiJbC FSHtQNUjH9asq7dbj0KhGIZloRBXdW1tWIVe0Tm7RmCkGTUh3C+WZAoZQfQ4aiq/VMhQ EOIOfzufYXg6m34EP4BRXu/y++UapvQ9Mufp9bJZpfgl2QWUFIigcbbeprXazSYpWtit hkiKvdzLpRmn/WSl0Cp0x4+Oh5JLom0QM4zShrQdMAojHiWlsKAz9TgtqWnG/yTKYIWB tLJdl4YJd56jLRNX/OrDd6M1qH9NUkGWQBmhiFEXLQlWfSrykzAo3MPHbffC613LFSWj kmoQ== X-Gm-Message-State: AGRZ1gKxt7tU8xxkzmTx+Jvv8M35L8e6Hdm04uUQenraNMBedyP+sScX 8gi/fY63J4g9+tbpgy0LKtkK4mexnTfU7dk1ytn9Vqcr/E3tLJIq+8f6jkSnpokyY6oqhxOiF3F BgN+N4Wgm02aGkgsjLmw30Hki607uoGQwSUsLY938D0RV7zvYBXBhwAHO76d+Srt04NUmrCc140 6R2puJy6mHHBfjL/c1u8pGiz0yfUYHMod21gFJT7vpwLW92GEo3lBc53q1ktt5hByUuJzBM7TU/ Qb1hcMnAFMJBSiPglLVZY2JVGk+wtz0Dtb5tMkSa2LRCO5ky4gRuQPpzPvw1IXd3UCIR2Tdd7fm lwsJ0CmCtMb2Oajhp6O9wvBCHc8SEQgey4BIcw4W3QgLXl7YYKEroNy2/vs14njbToCJ0+pUoyo / X-Received: by 2002:adf:800b:: with SMTP id 11-v6mr4290038wrk.106.1541687782824; Thu, 08 Nov 2018 06:36:22 -0800 (PST) X-Received: by 2002:adf:800b:: with SMTP id 11-v6mr4289987wrk.106.1541687781889; Thu, 08 Nov 2018 06:36:21 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1541687781; cv=none; d=google.com; s=arc-20160816; b=cy3rv9fhB5rLMmTjY+RrQWBagyAq91tFMk+3NoKu+DBAjjSlluwPL95yCo+lx4Nw6f zzYsnMQE9s1ApzpcD57JrMtIg83LhmLCzT2D9IPasuE8+5eIoW1VcC+5y4imgeEi6S1f ANDf6xe0atXj3CytS/N3g00E0Ep2X7aYUQPGOw2KUA8knruZhjT5xrMa3kXcIgrcKaOb Tv5Xhqr2m/8vOch/7n9zGDa5/TrYD8oxFQd7xcGODG5H9FRVajg2a7KvJ+jPKa2mZGBk 6CbhDNV7LSfulUPsYpbqESWF1iSReXj1Jo75pjc5mHegCLR/DwhBClCBboeSTfwsEXSd e7wQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:dkim-signature; bh=CyHAJ7bm8yqliTwjL59/PERrC1/EJlU4Hst47qO5nm4=; b=I6YuDSrNbuVkkg29a8hGl6+SXNz3Ubos5IqRZLuAIOo0Ue1ZaNol8ywcFtPCoXo+f8 voE9OMiVOoRGUjTmcd7v9/E5o82LjTYDTPepB8/WmMJRSfnhqwtMvf1INLOpS5byhQhU OYrv1Zdmv1iQeydpOh6V7dpZ2oHNq1W5lJFEC+5+RGaA6kzv6/sd2L7HNj+LKA+lvEq3 XnNBDv2rI8/7WCnU5zQqS1JIsXxs65ZI/Hl3CuC8k50VI3K02qTTotFUkqpKGmhDQBSJ mmMEC+f9ox7iGKcSvFooMgRdN16DJehWQjlA4tk87759BBTggAtvHeR4+C8AbfsctSL1 XL6w== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@google.com header.s=20161025 header.b=hTQIa3cT; spf=pass (google.com: domain of andreyknvl@google.com designates 209.85.220.65 as permitted sender) smtp.mailfrom=andreyknvl@google.com; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=google.com Received: from mail-sor-f65.google.com (mail-sor-f65.google.com. [209.85.220.65]) by mx.google.com with SMTPS id a15-v6sor3195815wrr.16.2018.11.08.06.36.21 for (Google Transport Security); Thu, 08 Nov 2018 06:36:21 -0800 (PST) Received-SPF: pass (google.com: domain of andreyknvl@google.com designates 209.85.220.65 as permitted sender) client-ip=209.85.220.65; Authentication-Results: mx.google.com; dkim=pass header.i=@google.com header.s=20161025 header.b=hTQIa3cT; spf=pass (google.com: domain of andreyknvl@google.com designates 209.85.220.65 as permitted sender) smtp.mailfrom=andreyknvl@google.com; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=google.com 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=CyHAJ7bm8yqliTwjL59/PERrC1/EJlU4Hst47qO5nm4=; b=hTQIa3cT8mQ6PRrw+ArPxNwUIt8G3xNjt0LPrCZ2+3MjH5B+tB03HhLfo9JtaDflG7 1WS5ukgZJKhb3Ft+7oWDzcuhvWXYYqx0oGvId1rHas5NYbuZlzgh+jsCM0J8W0xqrJa0 OhmkLb2QT3xrgFMUjfPkpf38HSHLQ5o2uSKcXbsGzJDAc1p3wW4syg78MncnKzkxdlQ2 jTset9xpCPu5advaWYtuw31DIxNZhkWjXoUPz18Ntq6yzfcR8/4GKmf2sUarr6Qq88IJ IhHrM2tjOxLBZ3p5PAc6ad18rgsGMiuDoHvHKgFHyyMONd2xM9xj5Hbiv/hkt+t/CGAx Vh+Q== X-Google-Smtp-Source: AJdET5d0FY6pZsoxQnT5NEn9m/O0HpttSzArfI8Y3zJIn/M/EFbpljwG8ooaFhLFbogzGGQcdQFN0w== X-Received: by 2002:adf:c752:: with SMTP id b18-v6mr4088793wrh.197.1541687781406; Thu, 08 Nov 2018 06:36:21 -0800 (PST) Received: from andreyknvl0.muc.corp.google.com ([2a00:79e0:15:10:84be:a42a:826d:c530]) by smtp.gmail.com with ESMTPSA id k5-v6sm5421068wre.82.2018.11.08.06.36.19 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 08 Nov 2018 06:36:20 -0800 (PST) From: Andrey Konovalov To: Catalin Marinas , Will Deacon , Mark Rutland , Robin Murphy , 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 , Luc Van Oostenryck , Andrey Konovalov Subject: [PATCH v8 1/8] arm64: add type casts to untagged_addr macro Date: Thu, 8 Nov 2018 15:36:08 +0100 Message-Id: <4a4063a3e074608b99cf22ab447fecc36d056251.1541687720.git.andreyknvl@google.com> X-Mailer: git-send-email 2.19.1.930.g4563a0d9d0-goog In-Reply-To: References: MIME-Version: 1.0 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: X-Virus-Scanned: ClamAV using ClamSMTP This patch makes the untagged_addr macro accept all kinds of address types (void *, unsigned long, etc.) and allows not to specify type casts in each place where it is used. This is done by using __typeof__. Signed-off-by: Andrey Konovalov Acked-by: Catalin Marinas --- arch/arm64/include/asm/uaccess.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/arm64/include/asm/uaccess.h b/arch/arm64/include/asm/uaccess.h index 07c34087bd5e..c1325271e368 100644 --- a/arch/arm64/include/asm/uaccess.h +++ b/arch/arm64/include/asm/uaccess.h @@ -101,7 +101,8 @@ static inline unsigned long __range_ok(const void __user *addr, unsigned long si * up with a tagged userland pointer. Clear the tag to get a sane pointer to * pass on to access_ok(), for instance. */ -#define untagged_addr(addr) sign_extend64(addr, 55) +#define untagged_addr(addr) \ + ((__typeof__(addr))sign_extend64((__u64)(addr), 55)) #define access_ok(type, addr, size) __range_ok(addr, size) #define user_addr_max get_fs