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 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id D9A19C369A1 for ; Wed, 25 Sep 2024 06:52:28 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 4B5E86B0083; Wed, 25 Sep 2024 02:52:28 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 43EB26B0085; Wed, 25 Sep 2024 02:52:28 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 2B8B06B0088; Wed, 25 Sep 2024 02:52:28 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id F35556B0083 for ; Wed, 25 Sep 2024 02:52:27 -0400 (EDT) Received: from smtpin15.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay06.hostedemail.com (Postfix) with ESMTP id 78D0FAC2E6 for ; Wed, 25 Sep 2024 06:52:27 +0000 (UTC) X-FDA: 82602341934.15.C07AE70 Received: from pegase2.c-s.fr (pegase2.c-s.fr [93.17.235.10]) by imf20.hostedemail.com (Postfix) with ESMTP id 72B651C0002 for ; Wed, 25 Sep 2024 06:52:25 +0000 (UTC) Authentication-Results: imf20.hostedemail.com; dkim=none; spf=pass (imf20.hostedemail.com: domain of christophe.leroy@csgroup.eu designates 93.17.235.10 as permitted sender) smtp.mailfrom=christophe.leroy@csgroup.eu; dmarc=pass (policy=quarantine) header.from=csgroup.eu ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1727247084; a=rsa-sha256; cv=none; b=jP+NR19AtKAE4JJp/VM9il4SjW2BgtYLkVWksv+JLUdSsxQEnErjBx8ICWPc6wKHIB58d+ ZIUtPNMa9mWFS9hFXQqvk4Bi7KUc4WGMeV27POqsvwvsaLI4B/Mt+iTXknq++K9lV2VJVj nyeF6U8WTKKHKMTu8uSPnnM1bt2uewM= ARC-Authentication-Results: i=1; imf20.hostedemail.com; dkim=none; spf=pass (imf20.hostedemail.com: domain of christophe.leroy@csgroup.eu designates 93.17.235.10 as permitted sender) smtp.mailfrom=christophe.leroy@csgroup.eu; dmarc=pass (policy=quarantine) header.from=csgroup.eu ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1727247084; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=r3otqocTtbwQrjUcY52sMnr0CVwwcjjl7+cGH5l9Q5s=; b=NwdrAJALO4ndNgR39yMadE5xLMVckXYtkbOs4qHsMC0wDN8w62Obyt5GKxKoUcY+44GnDa uYs9Bt1jTnpGmpj3D2gmKwDCCc5/3pLeR7xbmEGUJwlGQU1ofXs/Rg9Wx8BXV52NoXhb3a mY35Y+QB751qf/Ynx3Wvp3o7F2+g+pQ= Received: from localhost (mailhub3.si.c-s.fr [172.26.127.67]) by localhost (Postfix) with ESMTP id 4XD6qC3byrz9sSY; Wed, 25 Sep 2024 08:52:23 +0200 (CEST) X-Virus-Scanned: amavisd-new at c-s.fr Received: from pegase2.c-s.fr ([172.26.127.65]) by localhost (pegase2.c-s.fr [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id bhn-04nPqxse; Wed, 25 Sep 2024 08:52:23 +0200 (CEST) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase2.c-s.fr (Postfix) with ESMTP id 4XD6qC2hFCz9sSX; Wed, 25 Sep 2024 08:52:23 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 482688B76E; Wed, 25 Sep 2024 08:52:23 +0200 (CEST) X-Virus-Scanned: amavisd-new at c-s.fr Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id nzd3Q0q-rGGs; Wed, 25 Sep 2024 08:52:23 +0200 (CEST) Received: from [192.168.232.90] (PO27091.IDSI0.si.c-s.fr [192.168.232.90]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 422638B763; Wed, 25 Sep 2024 08:52:22 +0200 (CEST) Message-ID: Date: Wed, 25 Sep 2024 08:52:21 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 2/8] arm64: vdso: Introduce asm/vdso/mman.h To: Vincenzo Frascino , linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org Cc: Andy Lutomirski , Thomas Gleixner , "Jason A . Donenfeld" , Michael Ellerman , Nicholas Piggin , Naveen N Rao , Ingo Molnar , Borislav Petkov , Dave Hansen , "H . Peter Anvin" , Theodore Ts'o , Arnd Bergmann , Andrew Morton , Steven Rostedt , Masami Hiramatsu , Mathieu Desnoyers References: <20240923141943.133551-1-vincenzo.frascino@arm.com> <20240923141943.133551-3-vincenzo.frascino@arm.com> Content-Language: fr-FR From: Christophe Leroy In-Reply-To: <20240923141943.133551-3-vincenzo.frascino@arm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Stat-Signature: fspgsi46gubhocb15j69n83nudsmw7o1 X-Rspamd-Queue-Id: 72B651C0002 X-Rspam-User: X-Rspamd-Server: rspam10 X-HE-Tag: 1727247145-40704 X-HE-Meta: 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 AgqTP0ZD 00ZCAtAk+/rfG+WKehfQBNR6+T4iCYPiEW3z2vSOe/cv9fldzUNExBw13m4evkrxHmDTYXXG15qfMnMY6HN03bBnuMKui/lPQXKmxurjxMgOpp6suE9czbDvMZ2RgU/whCdcSdxLVQ9jENq1mgVYgt0vHVh0FsXXoBcWde5hmPiC0LMlm0CInPWhjJXfaGnPTpyO+69Bc9O40C+VDpa6X2qMZ/ktRdoE2HwmbCTAA6671etBp5kinujlRIasGQdk/rrsd0zMLDLImFCdfgV/zLEQL/g== 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: List-Subscribe: List-Unsubscribe: Le 23/09/2024 à 16:19, Vincenzo Frascino a écrit : > The VDSO implementation includes headers from outside of the > vdso/ namespace. > > Introduce asm/vdso/mman.h to make sure that the generic library > uses only the allowed namespace. > > Cc: Andy Lutomirski > Cc: Thomas Gleixner > Cc: Jason A. Donenfeld > Signed-off-by: Vincenzo Frascino > --- > arch/arm64/include/asm/vdso/mman.h | 15 +++++++++++++++ > 1 file changed, 15 insertions(+) > create mode 100644 arch/arm64/include/asm/vdso/mman.h > > diff --git a/arch/arm64/include/asm/vdso/mman.h b/arch/arm64/include/asm/vdso/mman.h > new file mode 100644 > index 000000000000..4c936c9d11ab > --- /dev/null > +++ b/arch/arm64/include/asm/vdso/mman.h > @@ -0,0 +1,15 @@ > + > +/* SPDX-License-Identifier: GPL-2.0 */ > +#ifndef __ASM_VDSO_MMAN_H > +#define __ASM_VDSO_MMAN_H > + > +#ifndef __ASSEMBLY__ > + > +#include > + > +#define VDSO_MMAP_PROT PROT_READ | PROT_WRITE > +#define VDSO_MMAP_FLAGS MAP_DROPPABLE | MAP_ANONYMOUS > + Same comment here as for x86, the flags are the same on all archictures, no need for such an indirection which makes the code less readable. Christophe