From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Toshi Kani , "Rafael J. Wysocki" Subject: [PATCH 3.12 107/144] ACPI / PCI / hotplug: Avoid warning when _ADR not present Date: Mon, 6 Jan 2014 14:37:48 -0800 Message-Id: <20140106223748.417273387@linuxfoundation.org> In-Reply-To: <20140106223745.326293132@linuxfoundation.org> References: <20140106223745.326293132@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Toshi Kani commit f26ca1d699e8b54a50d9faf82327d3c2072aaedd upstream. 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 Signed-off-by: Rafael J. Wysocki Signed-off-by: Greg Kroah-Hartman --- drivers/pci/hotplug/acpiphp_glue.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) --- a/drivers/pci/hotplug/acpiphp_glue.c +++ b/drivers/pci/hotplug/acpiphp_glue.c @@ -279,7 +279,9 @@ static acpi_status register_slot(acpi_ha 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; }