ACPI: PM: Print full name path while adding power resource

While debugging a boot-time issue, it's hard to know what ACPI power
resource the kernel is initializing.

It's very helpful to print the full name path of the power resource
being added so that it is not necessary to guess which one it is,
especially on a system with 2 ore more power resources where the
last name path segment is the same.

Before:
 ACPI: PM: Power Resource [RTD3]
 ACPI: PM: Power Resource [RTD3]
 ACPI: PM: Power Resource [PR00]
 ACPI: PM: Power Resource [PR01]

After:
 ACPI: \_SB_.PCI0.RP01.RTD3: New power resource
 ACPI: \_SB_.PCI0.RP08.RTD3: New power resource
 ACPI: \_SB_.PCI0.I2C3.H016.PR00: New power resource
 ACPI: \_SB_.PCI0.SPI1.CRFP.PR01: New power resource

Signed-off-by: Kane Chen <kane.chen@intel.com>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index f2588aba8421e7c7057f8066cbb7778e312acbaa..23507d29f0006beda96116103399ac7a4848e433 100644 (file)
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -967,7 +967,7 @@ struct acpi_device *acpi_add_power_resource(acpi_handle handle)
        if (acpi_power_get_state(resource, &state_dummy))
                __acpi_power_on(resource);
 
-       pr_info("%s [%s]\n", acpi_device_name(device), acpi_device_bid(device));
+       acpi_handle_info(handle, "New power resource\n");
 
        result = acpi_tie_acpi_dev(device);
        if (result)