From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759605Ab2DJWYT (ORCPT ); Tue, 10 Apr 2012 18:24:19 -0400 Received: from g5t0008.atlanta.hp.com ([15.192.0.45]:33282 "EHLO g5t0008.atlanta.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759557Ab2DJWXu (ORCPT ); Tue, 10 Apr 2012 18:23:50 -0400 From: Toshi Kani To: lenb@kernel.org, linux-acpi@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Toshi Kani Subject: [PATCH 3/4] ACPI: Add _OST support for ACPI CPU hotplug Date: Tue, 10 Apr 2012 16:21:49 -0600 Message-Id: <1334096510-17319-4-git-send-email-toshi.kani@hp.com> X-Mailer: git-send-email 1.7.7.6 In-Reply-To: <1334096510-17319-1-git-send-email-toshi.kani@hp.com> References: <1334096510-17319-1-git-send-email-toshi.kani@hp.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Changed acpi_processor_hotplug_notify() to call ACPI _OST method when ACPI-based CPU hotplug operation completed. Signed-off-by: Toshi Kani --- drivers/acpi/processor_driver.c | 28 ++++++++++++++++++++-------- 1 files changed, 20 insertions(+), 8 deletions(-) diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c index 0734086..5d9b5a8 100644 --- a/drivers/acpi/processor_driver.c +++ b/drivers/acpi/processor_driver.c @@ -701,9 +701,9 @@ static void acpi_processor_hotplug_notify(acpi_handle handle, { struct acpi_processor *pr; struct acpi_device *device = NULL; + u32 ost_code = ACPI_OST_SC_NON_SPECIFIC_FAILURE; /* default */ int result; - switch (event) { case ACPI_NOTIFY_BUS_CHECK: case ACPI_NOTIFY_DEVICE_CHECK: @@ -715,14 +715,18 @@ static void acpi_processor_hotplug_notify(acpi_handle handle, if (!is_processor_present(handle)) break; - if (acpi_bus_get_device(handle, &device)) { - result = acpi_processor_device_add(handle, &device); - if (result) - printk(KERN_ERR PREFIX - "Unable to add the device\n"); + if (!acpi_bus_get_device(handle, &device)) + break; + + result = acpi_processor_device_add(handle, &device); + if (result) { + printk(KERN_ERR PREFIX "Unable to add the device\n"); break; } + + ost_code = ACPI_OST_SC_SUCCESS; break; + case ACPI_NOTIFY_EJECT_REQUEST: ACPI_DEBUG_PRINT((ACPI_DB_INFO, "received ACPI_NOTIFY_EJECT_REQUEST\n")); @@ -736,15 +740,23 @@ static void acpi_processor_hotplug_notify(acpi_handle handle, if (!pr) { printk(KERN_ERR PREFIX "Driver data is NULL, dropping EJECT\n"); - return; + break; } + + /* REVISIT: update when eject is supported */ + ost_code = ACPI_OST_SC_EJECT_NOT_SUPPORTED; break; + default: ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Unsupported event [0x%x]\n", event)); - break; + + /* non-hotplug event; possibly handled by other handler */ + return; } + /* Inform firmware that the hotplug operation has completed */ + (void) acpi_evaluate_ost(handle, event, ost_code, NULL); return; } -- 1.7.7.6