Messages in this thread Patch in this message | | | From | Toshi Kani <> | Subject | [PATCH] ACPI / PCI / hotplug: Avoid warning when _ADR not present | Date | Wed, 27 Nov 2013 13:33:09 -0700 |
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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> --- 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; }
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