From patchwork Fri Mar 20 14:53:33 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vincenzo Frascino X-Patchwork-Id: 11449533 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 301A8139A for ; Fri, 20 Mar 2020 14:57:39 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id E51CF20714 for ; Fri, 20 Mar 2020 14:57:38 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="CfcG01uf" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E51CF20714 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org 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:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=uBs1hiJaGG5Yu3dljxplfHS3kASfJj/2ZSfsqLxVXOY=; b=CfcG01uf2+h6z9 tqtnzRp/Wgj8ToNnjmf2zkeHcM9HSs39HtEQTyV45Y2TtgvqX1ihIDt+jf3dctSRhOsIA/qJg4Vjn YeqZCUY2qRUdko98YwrjK2iNG8czOtJ5NUnkBM/6Z0x91Gd8GOVZCXADBkIQUZIvjhqHvaLnP4QSi qWWyhItLuy/T0aOR9icw9LJyCO9Tw0XoaD75CtlyYiWzQY3cxTR6OEOI3XChg2l2Mgc4T81Cp9xm/ gDREdgPf5Rw1Ck/AwRUres7n9njEL/bD257meeJtsVGV/71HFmZu9ai0ellJ2nNmnx4nnxY/YwYj2 6lfMJPzkIw4HNTlTiGvg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jFJ5c-0000D4-GN; Fri, 20 Mar 2020 14:57:36 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jFJ3G-0006AP-3j for linux-arm-kernel@lists.infradead.org; Fri, 20 Mar 2020 14:55:12 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 48B22FEC; Fri, 20 Mar 2020 07:55:09 -0700 (PDT) Received: from e119884-lin.cambridge.arm.com (e119884-lin.cambridge.arm.com [10.1.196.72]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 510D33F792; Fri, 20 Mar 2020 07:55:06 -0700 (PDT) From: Vincenzo Frascino To: linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com, linux-mips@vger.kernel.org, x86@kernel.org Subject: [PATCH v5 08/26] linux/clocksource.h: Extract common header for vDSO Date: Fri, 20 Mar 2020 14:53:33 +0000 Message-Id: <20200320145351.32292-9-vincenzo.frascino@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200320145351.32292-1-vincenzo.frascino@arm.com> References: <20200320145351.32292-1-vincenzo.frascino@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200320_075510_790062_39649546 X-CRM114-Status: GOOD ( 14.30 ) X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [217.140.110.172 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Nick Desaulniers , Kees Cook , Arnd Bergmann , Stephen Boyd , Catalin Marinas , Dmitry Safonov <0x7f454c46@gmail.com>, Russell King , Mark Salyzyn , Paul Burton , Ingo Molnar , Borislav Petkov , Andy Lutomirski , Marc Zyngier , Peter Collingbourne , Thomas Gleixner , Vincenzo Frascino , Will Deacon , Andrei Vagin Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org The vDSO library should only include the necessary headers required for a userspace library (UAPI and a minimal set of kernel headers). To make this possible it is necessary to isolate from the kernel headers the common parts that are strictly necessary to build the library. Split clocksource.h into linux and common headers to make the latter suitable for inclusion in the vDSO library. Signed-off-by: Vincenzo Frascino --- include/linux/clocksource.h | 11 +---------- include/vdso/clocksource.h | 23 +++++++++++++++++++++++ 2 files changed, 24 insertions(+), 10 deletions(-) create mode 100644 include/vdso/clocksource.h diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h index 02e3282719bd..86d143db6523 100644 --- a/include/linux/clocksource.h +++ b/include/linux/clocksource.h @@ -28,16 +28,7 @@ struct module; #include #endif -enum vdso_clock_mode { - VDSO_CLOCKMODE_NONE, -#ifdef CONFIG_GENERIC_GETTIMEOFDAY - VDSO_ARCH_CLOCKMODES, -#endif - VDSO_CLOCKMODE_MAX, - - /* Indicator for time namespace VDSO */ - VDSO_CLOCKMODE_TIMENS = INT_MAX -}; +#include /** * struct clocksource - hardware abstraction for a free running counter diff --git a/include/vdso/clocksource.h b/include/vdso/clocksource.h new file mode 100644 index 000000000000..ab58330e4e5d --- /dev/null +++ b/include/vdso/clocksource.h @@ -0,0 +1,23 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __VDSO_CLOCKSOURCE_H +#define __VDSO_CLOCKSOURCE_H + +#include + +#if defined(CONFIG_ARCH_CLOCKSOURCE_DATA) || \ + defined(CONFIG_GENERIC_GETTIMEOFDAY) +#include +#endif /* CONFIG_ARCH_CLOCKSOURCE_DATA || CONFIG_GENERIC_GETTIMEOFDAY */ + +enum vdso_clock_mode { + VDSO_CLOCKMODE_NONE, +#ifdef CONFIG_GENERIC_GETTIMEOFDAY + VDSO_ARCH_CLOCKMODES, +#endif + VDSO_CLOCKMODE_MAX, + + /* Indicator for time namespace VDSO */ + VDSO_CLOCKMODE_TIMENS = INT_MAX +}; + +#endif /* __VDSO_CLOCKSOURCE_H */