From patchwork Fri Oct 12 12:31:38 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tang Chen X-Patchwork-Id: 191111 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 1FCE82C008B for ; Fri, 12 Oct 2012 23:33:12 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755922Ab2JLMcy (ORCPT ); Fri, 12 Oct 2012 08:32:54 -0400 Received: from cn.fujitsu.com ([222.73.24.84]:63948 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1755720Ab2JLMcx (ORCPT ); Fri, 12 Oct 2012 08:32:53 -0400 X-IronPort-AV: E=Sophos;i="4.80,577,1344182400"; d="scan'208";a="5990338" Received: from unknown (HELO tang.cn.fujitsu.com) ([10.167.250.3]) by song.cn.fujitsu.com with ESMTP; 12 Oct 2012 20:31:20 +0800 Received: from fnstmail02.fnst.cn.fujitsu.com (tang.cn.fujitsu.com [127.0.0.1]) by tang.cn.fujitsu.com (8.14.3/8.13.1) with ESMTP id q9CCWjw9024242; Fri, 12 Oct 2012 20:32:46 +0800 Received: from tangchen.fnst.cn.fujitsu.com ([10.167.225.117]) by fnstmail02.fnst.cn.fujitsu.com (Lotus Domino Release 8.5.3) with ESMTP id 2012101220323335-453637 ; Fri, 12 Oct 2012 20:32:33 +0800 From: Tang Chen To: bhelgaas@google.com, lenb@kernel.org, yinghai@kernel.org, jiang.liu@huawei.com, izumi.taku@jp.fujitsu.com, isimatu.yasuaki@jp.fujitsu.com, linux-acpi@vger.kernel.org, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Tang Chen Subject: [PATCH v2] Fix a hard coding style when determining if a device is a container. Date: Fri, 12 Oct 2012 20:31:38 +0800 Message-Id: <1350045098-7232-1-git-send-email-tangchen@cn.fujitsu.com> X-Mailer: git-send-email 1.7.10.1 X-MIMETrack: Itemize by SMTP Server on mailserver/fnst(Release 8.5.3|September 15, 2011) at 2012/10/12 20:32:33, Serialize by Router on mailserver/fnst(Release 8.5.3|September 15, 2011) at 2012/10/12 20:32:34, Serialize complete at 2012/10/12 20:32:34 Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org "ACPI0004","PNP0A05" and "PNP0A06" are all defined in array container_device_ids[], so use it, but not the hard coding style. Also, introduce a new api is_container_device() to determine if a device is a container device. Signed-off-by: Tang Chen Signed-off-by: Yasuaki Ishimatsu Reviewed-by: Bjorn Helgaas --- drivers/acpi/container.c | 17 ++++++++++++++--- 1 files changed, 14 insertions(+), 3 deletions(-) diff --git a/drivers/acpi/container.c b/drivers/acpi/container.c index 1f9f7d7..ffd76ee 100644 --- a/drivers/acpi/container.c +++ b/drivers/acpi/container.c @@ -92,6 +92,19 @@ static int is_device_present(acpi_handle handle) return ((sta & ACPI_STA_DEVICE_PRESENT) == ACPI_STA_DEVICE_PRESENT); } +static int is_container_device(const char *hid) +{ + const struct acpi_device_id *container_id; + + for (container_id = container_device_ids; + container_id->id[0]; container_id++) { + if (!strcmp((char *)container_id->id, hid)) + return 1; + } + + return 0; +} + /*******************************************************************/ static int acpi_container_add(struct acpi_device *device) { @@ -232,10 +245,8 @@ container_walk_namespace_cb(acpi_handle handle, goto end; } - if (strcmp(hid, "ACPI0004") && strcmp(hid, "PNP0A05") && - strcmp(hid, "PNP0A06")) { + if (!is_container_device(hid)) goto end; - } switch (*action) { case INSTALL_NOTIFY_HANDLER: