This is a note to let you know that I've just added the patch titled
ACPI / PCI / hotplug: Avoid warning when _ADR not present
to the 3.12-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
acpi-pci-hotplug-avoid-warning-when-_adr-not-present.patch
and it can be found in the queue-3.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From f26ca1d699e8b54a50d9faf82327d3c2072aaedd Mon Sep 17 00:00:00 2001
From: Toshi Kani <toshi.kani@xxxxxx>
Date: Wed, 27 Nov 2013 13:33:09 -0700
Subject: ACPI / PCI / hotplug: Avoid warning when _ADR not present
From: Toshi Kani <toshi.kani@xxxxxx>
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@xxxxxx>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
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;
}
Patches currently in stable-queue which might be from toshi.kani@xxxxxx are
queue-3.12/acpi-pci-hotplug-avoid-warning-when-_adr-not-present.patch
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