From patchwork Fri Mar 6 13:32:31 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vincenzo Frascino X-Patchwork-Id: 11423955 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 0F5C592A for ; Fri, 6 Mar 2020 13:33:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EDD2521775 for ; Fri, 6 Mar 2020 13:33:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727436AbgCFNdV (ORCPT ); Fri, 6 Mar 2020 08:33:21 -0500 Received: from foss.arm.com ([217.140.110.172]:33568 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726733AbgCFNdV (ORCPT ); Fri, 6 Mar 2020 08:33:21 -0500 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 A70D81063; Fri, 6 Mar 2020 05:33:20 -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 E57DA3F6CF; Fri, 6 Mar 2020 05:33:17 -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 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 Subject: [PATCH v2 09/20] linux/ktime.h: Extract common header for vDSO Date: Fri, 6 Mar 2020 13:32:31 +0000 Message-Id: <20200306133242.26279-10-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 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 ktime.h into linux and common headers to make the latter suitable for inclusion in the vDSO library. Signed-off-by: Vincenzo Frascino --- include/common/ktime.h | 16 ++++++++++++++++ include/linux/ktime.h | 9 +-------- 2 files changed, 17 insertions(+), 8 deletions(-) create mode 100644 include/common/ktime.h diff --git a/include/common/ktime.h b/include/common/ktime.h new file mode 100644 index 000000000000..4dd6c6762ad4 --- /dev/null +++ b/include/common/ktime.h @@ -0,0 +1,16 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __COMMON_KTIME_H +#define __COMMON_KTIME_H + +#include + +/* + * The resolution of the clocks. The resolution value is returned in + * the clock_getres() system call to give application programmers an + * idea of the (in)accuracy of timers. Timer values are rounded up to + * this resolution values. + */ +#define LOW_RES_NSEC TICK_NSEC +#define KTIME_LOW_RES (LOW_RES_NSEC) + +#endif /* __COMMON_KTIME_H */ diff --git a/include/linux/ktime.h b/include/linux/ktime.h index d1fb05135665..c456b33c80e1 100644 --- a/include/linux/ktime.h +++ b/include/linux/ktime.h @@ -216,14 +216,7 @@ static inline __must_check bool ktime_to_timespec64_cond(const ktime_t kt, } } -/* - * The resolution of the clocks. The resolution value is returned in - * the clock_getres() system call to give application programmers an - * idea of the (in)accuracy of timers. Timer values are rounded up to - * this resolution values. - */ -#define LOW_RES_NSEC TICK_NSEC -#define KTIME_LOW_RES (LOW_RES_NSEC) +#include static inline ktime_t ns_to_ktime(u64 ns) {