src/patches/suse-2.6.27.39/patches.arch/acpi_disambiguate_processor_declaration_type.patch

   1 From: Myron Stowe <myron.stowe@hp.com>
   2 Subject: ACPI: Disambiguate processor declaration type
   3 References: bnc#440062
   4 Patch-Mainline: yes
   5 Commit-ID: ad93a765c1834db031b5bf1c2baf2a50d0462ca4
   6
   7 Signed-off-by: Thomas Renninger <trenn@suse.de>
   8
   9 Declaring processors in ACPI namespace can be done using either a
  10 "Processor" definition or a "Device" definition (see section 8.4 -
  11 Declaring Processors; "Advanced Configuration and Power Interface
  12 Specification", Revision 3.0b).  Currently the two processor
  13 declaration types are conflated.
  14
  15 This patch disambiguates the processor declaration's definition type
  16 enabling subsequent code to behave uniquely based explicitly on the
  17 declaration's type.
  18
  19 Signed-off-by: Myron Stowe <myron.stowe@hp.com>
  20 Signed-off-by: Len Brown <len.brown@intel.com>
  21
  22 ---
  23  drivers/acpi/processor_core.c |    1 +
  24  drivers/acpi/scan.c           |    2 +-
  25  include/acpi/acpi_drivers.h   |    1 +
  26  3 files changed, 3 insertions(+), 1 deletion(-)
  27
  28 --- a/drivers/acpi/processor_core.c
  29 +++ b/drivers/acpi/processor_core.c
  30 @@ -89,6 +89,7 @@ static int acpi_processor_handle_eject(s
  31
  32
  33  static const struct acpi_device_id processor_device_ids[] = {
  34 +       {ACPI_PROCESSOR_OBJECT_HID, 0},
  35         {ACPI_PROCESSOR_HID, 0},
  36         {"", 0},
  37  };
  38 --- a/drivers/acpi/scan.c
  39 +++ b/drivers/acpi/scan.c
  40 @@ -1002,7 +1002,7 @@ static void acpi_device_set_id(struct ac
  41                 hid = ACPI_POWER_HID;
  42                 break;
  43         case ACPI_BUS_TYPE_PROCESSOR:
  44 -               hid = ACPI_PROCESSOR_HID;
  45 +               hid = ACPI_PROCESSOR_OBJECT_HID;
  46                 break;
  47         case ACPI_BUS_TYPE_SYSTEM:
  48                 hid = ACPI_SYSTEM_HID;
  49 --- a/include/acpi/acpi_drivers.h
  50 +++ b/include/acpi/acpi_drivers.h
  51 @@ -41,6 +41,7 @@
  52   */
  53
  54  #define ACPI_POWER_HID                 "LNXPOWER"
  55 +#define ACPI_PROCESSOR_OBJECT_HID      "ACPI_CPU"
  56  #define ACPI_PROCESSOR_HID             "ACPI0007"
  57  #define ACPI_SYSTEM_HID                        "LNXSYSTM"
  58  #define ACPI_THERMAL_HID               "LNXTHERM"