From patchwork Fri Mar 20 14:53:38 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vincenzo Frascino X-Patchwork-Id: 11449503 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 7994B139A for ; Fri, 20 Mar 2020 14:56:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 62B9220786 for ; Fri, 20 Mar 2020 14:56:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727665AbgCTOz3 (ORCPT ); Fri, 20 Mar 2020 10:55:29 -0400 Received: from foss.arm.com ([217.140.110.172]:50430 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727049AbgCTOzZ (ORCPT ); Fri, 20 Mar 2020 10:55:25 -0400 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 2EE891FB; Fri, 20 Mar 2020 07:55:25 -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 3A87E3F792; Fri, 20 Mar 2020 07:55:22 -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 Cc: Vincenzo Frascino , Catalin Marinas , Will Deacon , Arnd Bergmann , Russell King , Paul Burton , Thomas Gleixner , Andy Lutomirski , Ingo Molnar , Borislav Petkov , Stephen Boyd , Mark Salyzyn , Kees Cook , Peter Collingbourne , Dmitry Safonov <0x7f454c46@gmail.com>, Andrei Vagin , Nick Desaulniers , Marc Zyngier , Mark Rutland Subject: [PATCH v5 13/26] linux/jiffies.h: Extract common header for vDSO Date: Fri, 20 Mar 2020 14:53:38 +0000 Message-Id: <20200320145351.32292-14-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 Sender: linux-mips-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.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/linux/jiffies.h | 4 +--- include/vdso/jiffies.h | 11 +++++++++++ 2 files changed, 12 insertions(+), 3 deletions(-) create mode 100644 include/vdso/jiffies.h diff --git a/include/linux/jiffies.h b/include/linux/jiffies.h index e3279ef24d28..fed6ba96c527 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) diff --git a/include/vdso/jiffies.h b/include/vdso/jiffies.h new file mode 100644 index 000000000000..2f9d596c8b29 --- /dev/null +++ b/include/vdso/jiffies.h @@ -0,0 +1,11 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __VDSO_JIFFIES_H +#define __VDSO_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 /* __VDSO_JIFFIES_H */