From patchwork Fri Mar 20 14:53:27 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vincenzo Frascino X-Patchwork-Id: 11449473 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 09FBB139A for ; Fri, 20 Mar 2020 14:55:34 +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 D815820714 for ; Fri, 20 Mar 2020 14:55:33 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="N3kvgkla" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D815820714 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=UQKF4DUWN6i2EdshEcHdIFscVbWPSEVdYPqh2wLX9Go=; b=N3kvgklaZAsFDT +rdUJOPB3Ga+tQ8Y8QnHQdjAYY53QidranmVYX9fhnme65mCJqo6iunGSVywjBue3KL+2NHSPsJ++ 4HHHfWy8RhvRjtk+Pq/lwZ6B6NdtSF8+0fph1LMN0pzvcExTCAv8wo25EVPjYToLB/Ogwo19qhZzV eB5ur7Y1adc3rRkFAxFrkjRIwXYVtV0qOxLnZOUCZCbOsUqrjUyr6L4HFKeWl0cOmNWelK+v7CM6R zEqf7lO8GH4hrI0zTaN0pSAffeAOB3uWqDCt2GAboEihs+FlqS+dfVdT43mkPTCGGrLb0N6cMAqCC O5uQzVVkASse8JlItS1w==; 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 1jFJ3b-00076j-JR; Fri, 20 Mar 2020 14:55:31 +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 1jFJ2w-0005JX-NN for linux-arm-kernel@lists.infradead.org; Fri, 20 Mar 2020 14:54:52 +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 14292FEC; Fri, 20 Mar 2020 07:54:50 -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 1D5CA3F792; Fri, 20 Mar 2020 07:54:47 -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 02/26] linux/bits.h: Extract common header for vDSO Date: Fri, 20 Mar 2020 14:53:27 +0000 Message-Id: <20200320145351.32292-3-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_075450_826298_C53712F9 X-CRM114-Status: GOOD ( 13.43 ) 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 bits.h into linux and common headers to make the latter suitable for inclusion in the vDSO library. Signed-off-by: Vincenzo Frascino --- include/linux/bits.h | 2 +- include/vdso/bits.h | 9 +++++++++ 2 files changed, 10 insertions(+), 1 deletion(-) create mode 100644 include/vdso/bits.h diff --git a/include/linux/bits.h b/include/linux/bits.h index 669d69441a62..a740bbcf3cd2 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) diff --git a/include/vdso/bits.h b/include/vdso/bits.h new file mode 100644 index 000000000000..6d005a1f5d94 --- /dev/null +++ b/include/vdso/bits.h @@ -0,0 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __VDSO_BITS_H +#define __VDSO_BITS_H + +#include + +#define BIT(nr) (UL(1) << (nr)) + +#endif /* __VDSO_BITS_H */