From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161166AbaDPN0L (ORCPT ); Wed, 16 Apr 2014 09:26:11 -0400 Received: from mga09.intel.com ([134.134.136.24]:52439 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1161128AbaDPN0J (ORCPT ); Wed, 16 Apr 2014 09:26:09 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.97,872,1389772800"; d="scan'208";a="494140955" From: Lan Tianyu To: wsa@the-dreams.de, rjw@rjwysocki.net, lenb@kernel.org, mika.westerberg@linux.intel.com, awilliam@redhat.com, tianyu.lan@intel.com, robert.moore@intel.com, lv.zheng@intel.com Cc: linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, devel@acpica.org Subject: [PATCH 3/9] ACPI: Add acpi_bus_attach_private_data() to facilitate to attach data to ACPI handle Date: Wed, 16 Apr 2014 21:24:36 +0800 Message-Id: <1397654682-7094-4-git-send-email-tianyu.lan@intel.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1397654682-7094-1-git-send-email-tianyu.lan@intel.com> References: <1397654682-7094-1-git-send-email-tianyu.lan@intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org There is already acpi_bus_get_private_data() to get ACPI handle data which is associated with acpi_bus_private_data_handler(). This patch is to add acpi_bus_attach_private_data() to make a pair and facilitate to attach and get data to/from ACPI handle. Signed-off-by: Lan Tianyu --- drivers/acpi/bus.c | 18 +++++++++++++++++- include/acpi/acpi_bus.h | 1 + 2 files changed, 18 insertions(+), 1 deletion(-) diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index e7e5844..4ed8d48 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -132,6 +132,22 @@ void acpi_bus_private_data_handler(acpi_handle handle, } EXPORT_SYMBOL(acpi_bus_private_data_handler); +int acpi_bus_attach_private_data(acpi_handle handle, void *data) +{ + acpi_status status; + + status = acpi_attach_data(handle, + acpi_bus_private_data_handler, data); + if (ACPI_FAILURE(status)) { + ACPI_ERROR((AE_INFO, "Error attaching device[%p] data\n", + handle)); + return -ENODEV; + } + + return 0; +} +EXPORT_SYMBOL(acpi_bus_attach_private_data); + int acpi_bus_get_private_data(acpi_handle handle, void **data) { acpi_status status; @@ -141,7 +157,7 @@ int acpi_bus_get_private_data(acpi_handle handle, void **data) status = acpi_get_data(handle, acpi_bus_private_data_handler, data); if (ACPI_FAILURE(status) || !*data) { - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No context for object [%p]\n", + ACPI_ERROR((AE_INFO, "No context for object [%p]\n", handle)); return -ENODEV; } diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index 84a2e29..a1f6fec 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -406,6 +406,7 @@ extern struct kobject *acpi_kobj; extern int acpi_bus_generate_netlink_event(const char*, const char*, u8, int); void acpi_bus_private_data_handler(acpi_handle, void *); int acpi_bus_get_private_data(acpi_handle, void **); +int acpi_bus_attach_private_data(acpi_handle, void *); void acpi_bus_no_hotplug(acpi_handle handle); extern int acpi_notifier_call_chain(struct acpi_device *, u32, u32); extern int register_acpi_notifier(struct notifier_block *); -- 1.8.4.rc0.1.g8f6a3e5.dirty