From patchwork Fri Mar 6 13:32:30 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vincenzo Frascino X-Patchwork-Id: 11424009 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 340F392A for ; Fri, 6 Mar 2020 13:35:19 +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 0D96720848 for ; Fri, 6 Mar 2020 13:35:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="oKP4cxOp" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0D96720848 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=+1+70P+gSSSSn+nn96va6Tpq7QgvY2VVSt37u4rG9HE=; b=oKP4cxOpq2j78m FrDzjVwdRB4pta+ZRJgpy7TitYDWjsA+2/fVULWtFoOqOLoTsw1U0vc0pEkOG474yR/ZUdsLmbKJy VfnHW+CD8cskK5O0/5exFoLm68qSb8EOdRd4m9XYTU9ZoTdpqVDzsNrEfu5MMIIbwvb8+M0QyM5qo p5cOEPgdLIxPCNDNJ7fIx/BMEElkIVdV6crbQfO/owzys7Uu+1GORa7LGMYiE0YRFNdMbRTL9zbPi oUnuy4XrieK9M0vT2bPApYxiRtjheLPlm5bOCtGmWYL91J2KeTWoKixbSWLUo5nzQ8wy5SV8hxpil vEZothCtVVZ4x5VxVX3Q==; 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 1jAD8H-0007gU-3j; Fri, 06 Mar 2020 13:35:17 +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 1jAD6M-0004aE-5Q for linux-arm-kernel@lists.infradead.org; Fri, 06 Mar 2020 13:33:19 +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 AE5DD4B2; Fri, 6 Mar 2020 05:33:17 -0800 (PST) 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 ECC3E3F6CF; Fri, 6 Mar 2020 05:33:14 -0800 (PST) From: Vincenzo Frascino To: linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org, clang-built-linux@googlegroups.com, x86@kernel.org Subject: [PATCH v2 08/20] linux/jiffies.h: Extract common header for vDSO Date: Fri, 6 Mar 2020 13:32:30 +0000 Message-Id: <20200306133242.26279-9-vincenzo.frascino@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200306133242.26279-1-vincenzo.frascino@arm.com> References: <20200306133242.26279-1-vincenzo.frascino@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200306_053318_258140_BA51D274 X-CRM114-Status: GOOD ( 14.28 ) 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_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches 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: Nick Desaulniers , Dmitry Safonov <0x7f454c46@gmail.com>, Kees Cook , Arnd Bergmann , Stephen Boyd , Catalin Marinas , Will Deacon , Russell King , Mark Salyzyn , Paul Burton , Ingo Molnar , Borislav Petkov , Andy Lutomirski , Thomas Gleixner , Vincenzo Frascino , Peter Collingbourne , 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 jiffies.h into linux and common headers to make the latter suitable for inclusion in the vDSO library. Signed-off-by: Vincenzo Frascino --- include/common/jiffies.h | 11 +++++++++++ include/linux/jiffies.h | 4 +--- 2 files changed, 12 insertions(+), 3 deletions(-) create mode 100644 include/common/jiffies.h diff --git a/include/common/jiffies.h b/include/common/jiffies.h new file mode 100644 index 000000000000..ff0207f00550 --- /dev/null +++ b/include/common/jiffies.h @@ -0,0 +1,11 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __COMMON_JIFFIES_H +#define __COMMON_JIFFIES_H + +#include /* for HZ */ +#include + +/* TICK_NSEC is the time between ticks in nsec assuming SHIFTED_HZ */ +#define TICK_NSEC ((NSEC_PER_SEC+HZ/2)/HZ) + +#endif /* __COMMON_JIFFIES_H */ diff --git a/include/linux/jiffies.h b/include/linux/jiffies.h index e3279ef24d28..710539d1e39b 100644 --- a/include/linux/jiffies.h +++ b/include/linux/jiffies.h @@ -8,6 +8,7 @@ #include #include #include +#include #include /* for HZ */ #include @@ -59,9 +60,6 @@ extern int register_refined_jiffies(long clock_tick_rate); -/* TICK_NSEC is the time between ticks in nsec assuming SHIFTED_HZ */ -#define TICK_NSEC ((NSEC_PER_SEC+HZ/2)/HZ) - /* TICK_USEC is the time between ticks in usec assuming SHIFTED_HZ */ #define TICK_USEC ((USEC_PER_SEC + HZ/2) / HZ)