From patchwork Mon May 6 16:30:47 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrey Konovalov X-Patchwork-Id: 10931567 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 636C115A6 for ; Mon, 6 May 2019 16:33:45 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 51CCB286AA for ; Mon, 6 May 2019 16:33:45 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4569C28847; Mon, 6 May 2019 16:33:45 +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=-15.5 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI, USER_IN_DEF_DKIM_WL 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 E977D286AA for ; Mon, 6 May 2019 16:33:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726607AbfEFQbM (ORCPT ); Mon, 6 May 2019 12:31:12 -0400 Received: from mail-qk1-f201.google.com ([209.85.222.201]:45025 "EHLO mail-qk1-f201.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725883AbfEFQbL (ORCPT ); Mon, 6 May 2019 12:31:11 -0400 Received: by mail-qk1-f201.google.com with SMTP id h16so2297693qke.11 for ; Mon, 06 May 2019 09:31:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=3tB4TRcqPwl6IgCCTq3FyKBtrVczmpENbbiRumQIu5I=; b=C5Bzseg2BAkWez5di4p65TqBX8PhS2fPXqJjrcuborrGzdIMmjBkEGS1oepu/kO4gi ZrAiwZ1YbirX9TOQW6iDBsdtMTgTZyQlBla9C/k5+v0DS9Eu7yTQTxvIZJRaIMRpa57h rZkszsH1RsVjkBjXJm8Nw6zDYrexUGyc9BNsDlgeAocqmj+aaO1LdZJjYgfxEDSFYcJj gjdVUEcQ+veFKjzDustw9+BWdSodbg3cE0gzjdewRwKOf7czWg4u+rE0852iiQixBdas JIw3pQAvoPC6IfNeEfBV09Q69TtafbxIB+dc/sgJQwlLGyiy5Ze3tqDZ/eiYCNwSry9q rXvw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=3tB4TRcqPwl6IgCCTq3FyKBtrVczmpENbbiRumQIu5I=; b=rB2RuZJLtZnvvLBBTipNtwjgPSb/dVm/zaRERD7EjwZJ62gjluBT+M3oULJOojH1mm 8ULsx5SaFYuZUyZ09QPLPHl0eljgMBPeIy/fVpsUtnImS7sFsjsjo3mR+Pl79rScV85S R7m0pBs1AMeIzJKa0Aaagzr/IJfjfXLgqVmbULqSwfeQYGW1MANp9Vus/l2eoA8DMhTc /a1I+U32YzbfWo5UXMqir+FFBStrkiFeTmil7IL6lThepG7Z+RUV44fbtHu0ApxR3jpl +ikSyH2pXnC3dwxE8Z9nDEsDbooYwpM2zExc/1AWoF3ODpWEOwM6DCkBy8qLFBeBHtmf g7gw== X-Gm-Message-State: APjAAAUdHOL6LvWwH9gfmFfI6+tzQKke7L0YUUeqvZZt59foIxUvZX24 9RMtBrZwVVxiKqZZ59+nowGU2sVIemaAgeoA X-Google-Smtp-Source: APXvYqwDoIRoTGaFyeue7qd81SpE5xeykRQrED4HzbPSjcVVRn6t+xvIGHOhvH8ghp1kYB1swN7rJoVGjZYp31y2 X-Received: by 2002:ac8:3390:: with SMTP id c16mr6277321qtb.315.1557160270425; Mon, 06 May 2019 09:31:10 -0700 (PDT) Date: Mon, 6 May 2019 18:30:47 +0200 In-Reply-To: Message-Id: <67ae3bd92e590d42af22ef2de0ad37b730a13837.1557160186.git.andreyknvl@google.com> Mime-Version: 1.0 References: X-Mailer: git-send-email 2.21.0.1020.gf2820cf01a-goog Subject: [PATCH v15 01/17] uaccess: add untagged_addr definition for other arches From: Andrey Konovalov To: linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-rdma@vger.kernel.org, linux-media@vger.kernel.org, kvm@vger.kernel.org, linux-kselftest@vger.kernel.org Cc: Catalin Marinas , Vincenzo Frascino , Will Deacon , Mark Rutland , Andrew Morton , Greg Kroah-Hartman , Kees Cook , Yishai Hadas , Felix Kuehling , Alexander Deucher , Christian Koenig , Mauro Carvalho Chehab , Jens Wiklander , Alex Williamson , Leon Romanovsky , Dmitry Vyukov , Kostya Serebryany , Evgeniy Stepanov , Lee Smith , Ramana Radhakrishnan , Jacob Bramley , Ruben Ayrapetyan , Robin Murphy , Luc Van Oostenryck , Dave Martin , Kevin Brodsky , Szabolcs Nagy , Andrey Konovalov Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP To allow arm64 syscalls to 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 architectures other than arm64. Acked-by: Catalin Marinas Signed-off-by: Andrey Konovalov Reviewed-by: Khalid Aziz --- include/linux/mm.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/include/linux/mm.h b/include/linux/mm.h index 6b10c21630f5..44041df804a6 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -99,6 +99,10 @@ extern int mmap_rnd_compat_bits __read_mostly; #include #include +#ifndef untagged_addr +#define untagged_addr(addr) (addr) +#endif + #ifndef __pa_symbol #define __pa_symbol(x) __pa(RELOC_HIDE((unsigned long)(x), 0)) #endif