| From | Greg Kroah-Hartman <> | Subject | [PATCH 3.12 107/144] ACPI / PCI / hotplug: Avoid warning when _ADR not present | Date | Mon, 6 Jan 2014 14:37:48 -0800 |
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3.12-stable review patch. If anyone has any objections, please let me know.
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From: Toshi Kani <toshi.kani@hp.com>
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 <toshi.kani@hp.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- 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; }
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