From patchwork Fri Mar 6 13:32:24 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vincenzo Frascino X-Patchwork-Id: 11423957 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 1295B138D for ; Fri, 6 Mar 2020 13:33:34 +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 E4E71206D5 for ; Fri, 6 Mar 2020 13:33:33 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="LgxBeYE3" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E4E71206D5 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=9ioBBaeBEavJYTUSUYRhMaw0u8wnpmZBCDoCKMNLy7s=; b=LgxBeYE3ZcpStE FKMixTtsCVZkkGPbN/Htxamvs9WiW8Gww2D4zWkvcLTsT7lNtITzNFK6ZHb6/3MNZlE5WCX8VUNHB T3eFHTk/uUCU/OE/yS/yrGvoG/QqG1anPUlLd+ZRLsF/CMAdGvkCyDIqSEZjqgXx8mKeuixLX6T4e b4nvYiOGPjycZlZGlUHsPxwEGqgqM2cVjeaIyS4X3oGeXCqm+Fmt0x88Uha9fhha0S35TUpUI9PrL D1+ZHdiCYSwFNsTh88KIlYtqOfEtKFbv8hg4AT1BC6nx/P1KFe8yi6QSsyIQbXT1qFGxlqlPnLMvS MmmFlK7+31wa2Rx6YdZg==; 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 1jAD6Z-0004lq-HY; Fri, 06 Mar 2020 13:33:31 +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 1jAD64-0004GD-HK for linux-arm-kernel@lists.infradead.org; Fri, 06 Mar 2020 13:33:01 +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 E6469101E; Fri, 6 Mar 2020 05:32:59 -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 3201D3F6CF; Fri, 6 Mar 2020 05:32:57 -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 02/20] linux/bits.h: Extract common header for vDSO Date: Fri, 6 Mar 2020 13:32:24 +0000 Message-Id: <20200306133242.26279-3-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_053300_647331_71A3DBA9 X-CRM114-Status: GOOD ( 13.78 ) 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 bits.h into linux and common headers to make the latter suitable for inclusion in the vDSO library. Signed-off-by: Vincenzo Frascino --- include/common/bits.h | 9 +++++++++ include/linux/bits.h | 2 +- 2 files changed, 10 insertions(+), 1 deletion(-) create mode 100644 include/common/bits.h diff --git a/include/common/bits.h b/include/common/bits.h new file mode 100644 index 000000000000..6da493992e52 --- /dev/null +++ b/include/common/bits.h @@ -0,0 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __COMMON_BITS_H +#define __COMMON_BITS_H + +#include + +#define BIT(nr) (UL(1) << (nr)) + +#endif /* __COMMON_BITS_H */ diff --git a/include/linux/bits.h b/include/linux/bits.h index 669d69441a62..aeb76fede77a 100644 --- a/include/linux/bits.h +++ b/include/linux/bits.h @@ -3,9 +3,9 @@ #define __LINUX_BITS_H #include +#include #include -#define BIT(nr) (UL(1) << (nr)) #define BIT_ULL(nr) (ULL(1) << (nr)) #define BIT_MASK(nr) (UL(1) << ((nr) % BITS_PER_LONG)) #define BIT_WORD(nr) ((nr) / BITS_PER_LONG)