From patchwork Fri Mar 15 19:51:25 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrey Konovalov X-Patchwork-Id: 10855487 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 234D213B5 for ; Fri, 15 Mar 2019 19:52:03 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 060162AC53 for ; Fri, 15 Mar 2019 19:52:03 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id EC4BE2AC56; Fri, 15 Mar 2019 19:52:02 +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=-5.2 required=2.0 tests=BAYES_00,DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED,DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id A24F42AC53 for ; Fri, 15 Mar 2019 19:52:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:To:From:Subject:References:Mime-Version :Message-Id:In-Reply-To:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=oLnZ57FqlYkcx9Xav0DshduahLnvZ1+Zt5tXF6pOxGE=; b=MRddi9VhRbW9S2 +igL+OIP7emGWBK4sT1jx27+TVFD7+/dvsyE2wOzLP+7OTTzg4z/1Qq7106nMlrCWorcdrEb2E25F X4K5KVlSZV1nAnMb2PwCwnEVPtRSo915zJNE6+zMLzpRRe+CTIEzjXj/nZ2E4fvOapJgIbztlgcE2 nQ0t4YUvmrNoblERIsfuNQR6V+g7Nr7g+5Js4sG0HhXoYnSgPHJXLxmlPeqqckLgs+zWGbaHH271B dac/nyKoRErD055aYiFP3od4LxRFtZ4PGlNP+8o1jyQOfGGsnm+jfkiCPaDCFnKQZ67oyLmaLj/Ay RKnzLECj3VLFwZM2YoCw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1h4ss5-00076p-B8; Fri, 15 Mar 2019 19:52:01 +0000 Received: from mail-io1-xd4a.google.com ([2607:f8b0:4864:20::d4a]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1h4srs-0006UH-KX for linux-arm-kernel@lists.infradead.org; Fri, 15 Mar 2019 19:51:49 +0000 Received: by mail-io1-xd4a.google.com with SMTP id p143so7943730iod.19 for ; Fri, 15 Mar 2019 12:51:47 -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=7EwJOZO2FU3roQl0F5aaHfBG2l97MDWb8Nx8DHL3tHk=; b=NsZbFgqg7rNL+MmKx3BQKEQu20uV5j38Y50xV/nkSWdpaI1ml/U6N36zAaOr/fw5UA vw0RHRh7TFVUW8EczyoyJgPl2GwQ0O2Y3mdoA35Hyc638cKh6Ou6T8eYWBn4JvcpMD/p rAobGvHGGcaX0d5KUxoitmIQyCm1jnvtMKLMyUhfKXJwo6H8C9LXAnbI3Vm9NBlauUvF LSPFoGZmvnqqM1DaPRlnN62YYv9Ww/FkPY+qI6Xd7c1DGMrBJfACmaSSGw3vWzqTDpi4 0fO7tv8nv58nySaGO3aBtIsMUSYoC0bWVWTZpEnNl/6BuoGd6099E0jO7AssN7waL7VF i1Ag== 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=7EwJOZO2FU3roQl0F5aaHfBG2l97MDWb8Nx8DHL3tHk=; b=JMgix5uR4TY3r4NqVmLUiMJrLQalzX0UnTRGNzGkx0FH5jWFD+ZD9yTlB8yz8Q26x9 eWEX1C1+SqG9eArsH1np2hC52OUHRWHNnJQNXK2BxZ3jB2xWaYlgWGptwy746a+gVqG+ RuIMCAGRjMK3Jj6HpmKwZmV+kHOo5Fh23Et9rqATC2A6lqVw8pYmfzhJWOCPNhwbb85A KxSIeRWEJAuzoODLgcofZAzfgcDA5ZAywAavR1VcZLwDsEHxSEws+s4JgOd+BpEQ1l1I aHdKtci07AvkqT5LdefdbOt6gd9tbuCGyh47bcuDtvdPgxmeMZK/F5Nf5P5iurhnDqzn Mizw== X-Gm-Message-State: APjAAAUejms74BQ7y+47rPwObmuQ0eUSG2XsrtxD1/g/dQsWyndC6ghx 4DIU3zNdLnDdy9rtJ8repBtLbskG5UCqbPPl X-Google-Smtp-Source: APXvYqw3EhdS69JFOaj1SqCWxq2uMXIiNWdBlJ3prBk3wjQoeZqkO0NrFGiKQ0BULG0Vahh3MxRaQ9/Jyb5Vnlog X-Received: by 2002:a24:7bd3:: with SMTP id q202mr100068itc.32.1552679506915; Fri, 15 Mar 2019 12:51:46 -0700 (PDT) Date: Fri, 15 Mar 2019 20:51:25 +0100 In-Reply-To: Message-Id: Mime-Version: 1.0 References: X-Mailer: git-send-email 2.21.0.360.g471c308f928-goog Subject: [PATCH v11 01/14] uaccess: add untagged_addr definition for other arches 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 , Vincenzo Frascino , Eric Dumazet , "David S. Miller" , Alexei Starovoitov , Daniel Borkmann , Steven Rostedt , Ingo Molnar , Peter Zijlstra , Arnaldo Carvalho de Melo , linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-mm@kvack.org, linux-arch@vger.kernel.org, netdev@vger.kernel.org, bpf@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190315_125148_680851_6505D1E0 X-CRM114-Status: GOOD ( 10.21 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Brodsky , Chintan Pandya , Jacob Bramley , Ruben Ayrapetyan , Szabolcs Nagy , Andrey Konovalov , Lee Smith , Kostya Serebryany , Dmitry Vyukov , Ramana Radhakrishnan , Luc Van Oostenryck , Dave Martin , Evgeniy Stepanov Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.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 --- include/linux/mm.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/include/linux/mm.h b/include/linux/mm.h index 76769749b5a5..4d674518d392 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