From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757748Ab3K0UiG (ORCPT ); Wed, 27 Nov 2013 15:38:06 -0500 Received: from g4t0014.houston.hp.com ([15.201.24.17]:26120 "EHLO g4t0014.houston.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754595Ab3K0UiC (ORCPT ); Wed, 27 Nov 2013 15:38:02 -0500 From: Toshi Kani To: rjw@rjwysocki.net, bhelgaas@google.com Cc: linux-acpi@vger.kernel.org, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Toshi Kani Subject: [PATCH] ACPI / PCI / hotplug: Avoid warning when _ADR not present Date: Wed, 27 Nov 2013 13:33:09 -0700 Message-Id: <1385584389-22461-1-git-send-email-toshi.kani@hp.com> X-Mailer: git-send-email 1.8.3.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org acpiphp_enumerate_slots() walks ACPI namenamespace under a PCI host bridge with callback register_slot(). register_slot() evaluates _ADR for all the device objects and emits a warning message for any error. Some platforms have _HID device objects (such as HPET and IPMI), which trigger unnecessary warning messages. This patch avoids emitting a warning message when a target device object does not have _ADR. Signed-off-by: Toshi Kani --- Patch is based on Linus's tree (3.13-rc1). --- drivers/pci/hotplug/acpiphp_glue.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c index 1cf605f..438a4d0 100644 --- a/drivers/pci/hotplug/acpiphp_glue.c +++ b/drivers/pci/hotplug/acpiphp_glue.c @@ -279,7 +279,9 @@ static acpi_status register_slot(acpi_handle handle, u32 lvl, void *data, status = acpi_evaluate_integer(handle, "_ADR", NULL, &adr); if (ACPI_FAILURE(status)) { - acpi_handle_warn(handle, "can't evaluate _ADR (%#x)\n", status); + if (status != AE_NOT_FOUND) + acpi_handle_warn(handle, + "can't evaluate _ADR (%#x)\n", status); return AE_OK; }