From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.6 required=3.0 tests=DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,T_DKIM_INVALID, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A9E9BC43142 for ; Fri, 22 Jun 2018 19:47:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5508E2481C for ; Fri, 22 Jun 2018 19:47:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="nw7Wy76T"; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="nw7Wy76T" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5508E2481C Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934575AbeFVTrY (ORCPT ); Fri, 22 Jun 2018 15:47:24 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:56014 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934399AbeFVTqs (ORCPT ); Fri, 22 Jun 2018 15:46:48 -0400 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id B86D360B18; Fri, 22 Jun 2018 19:46:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1529696807; bh=4YH7zUXB9uysXF1AY0kEzc8hBNIgUA2yk1xRvlkTZf4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nw7Wy76T+jLq49viWHR18gjl5yDIN2YH7I9ep6fGo5o7wFgKr2xvRKzUkr5byG58D KHfX07jeFks7GV7awoymJ/SLatedcvlyTqC7FiRG/KE83xw8NcxD0o6F4o9eDRg+xF ybja+LAFBa8TVyoYCKU22SmHMsd8RG7zQTeXaLYM= Received: from azshara.qualcomm.com (global_nat1_iad_fw.qualcomm.com [129.46.232.65]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: agustinv@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id C1A7A60AFF; Fri, 22 Jun 2018 19:46:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1529696807; bh=4YH7zUXB9uysXF1AY0kEzc8hBNIgUA2yk1xRvlkTZf4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nw7Wy76T+jLq49viWHR18gjl5yDIN2YH7I9ep6fGo5o7wFgKr2xvRKzUkr5byG58D KHfX07jeFks7GV7awoymJ/SLatedcvlyTqC7FiRG/KE83xw8NcxD0o6F4o9eDRg+xF ybja+LAFBa8TVyoYCKU22SmHMsd8RG7zQTeXaLYM= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org C1A7A60AFF Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=agustinv@codeaurora.org From: Agustin Vega-Frias To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-acpi@vger.kernel.org, Will Deacon , Mark Rutland , Jeremy Linton , Catalin Marinas , Marc Zyngier , Lorenzo Pieralisi , "Rafael J. Wysocki" Cc: timur@codeaurora.org, agustinv@codeaurora.org Subject: [RFC V2 1/3] ACPI: add support for sentinel-delimited probe tables Date: Fri, 22 Jun 2018 15:46:30 -0400 Message-Id: <1529696792-16903-2-git-send-email-agustinv@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1529696792-16903-1-git-send-email-agustinv@codeaurora.org> References: <1529696792-16903-1-git-send-email-agustinv@codeaurora.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Tables declared with the ACPI_PROBE_TABLE linker macro are typically traversed by using the start and end symbols created by the linker script. However, there are some APIs that use sentinel-delimited tables (e.g. acpi_match_device). To better support these APIs an additional section is added at the end of the probe table. This section can be used to add a sentinel for tables that require it. Signed-off-by: Agustin Vega-Frias --- include/asm-generic/vmlinux.lds.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index af24057..5894049 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -219,7 +219,8 @@ . = ALIGN(8); \ VMLINUX_SYMBOL(__##name##_acpi_probe_table) = .; \ KEEP(*(__##name##_acpi_probe_table)) \ - VMLINUX_SYMBOL(__##name##_acpi_probe_table_end) = .; + VMLINUX_SYMBOL(__##name##_acpi_probe_table_end) = .; \ + KEEP(*(__##name##_acpi_probe_table_end)) #else #define ACPI_PROBE_TABLE(name) #endif -- Qualcomm Datacenter Technologies, Inc. on behalf of the Qualcomm Technologies, Inc. Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.