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ACPI: processor: remove unnecessary string _UID comments

Message ID 20201014010340.433398-1-alex.hung@canonical.com
State Accepted
Commit d85cc6635a2a1338f7a45f652e97b02f9a69b9f5
Headers show
Series ACPI: processor: remove unnecessary string _UID comments | expand

Commit Message

Alex Hung Oct. 14, 2020, 1:03 a.m. UTC
ACPI 6.3 Errata A no longer allows _UID to be string except Itanium
for historical reasons as stated in section 5.2.12. Therefore, it is
redundant to comment "we don't handle string _UIDs yet" which implies a
feature is missing.

"From ACPI Specification 6.3 onward, all processor objects for all
architectures except Itanium must now use Device() objects with an _HID
of ACPI0007, and use only integer _UID values."

Signed-off-by: Alex Hung <alex.hung@canonical.com>
---
 drivers/acpi/acpi_processor.c | 1 -
 1 file changed, 1 deletion(-)

Comments

Rafael J. Wysocki Oct. 16, 2020, 4:14 p.m. UTC | #1
On Wed, Oct 14, 2020 at 3:03 AM Alex Hung <alex.hung@canonical.com> wrote:
>
> ACPI 6.3 Errata A no longer allows _UID to be string except Itanium
> for historical reasons as stated in section 5.2.12. Therefore, it is
> redundant to comment "we don't handle string _UIDs yet" which implies a
> feature is missing.
>
> "From ACPI Specification 6.3 onward, all processor objects for all
> architectures except Itanium must now use Device() objects with an _HID
> of ACPI0007, and use only integer _UID values."
>
> Signed-off-by: Alex Hung <alex.hung@canonical.com>
> ---
>  drivers/acpi/acpi_processor.c | 1 -
>  1 file changed, 1 deletion(-)
>
> diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c
> index b51ddf3..710605f 100644
> --- a/drivers/acpi/acpi_processor.c
> +++ b/drivers/acpi/acpi_processor.c
> @@ -264,7 +264,6 @@ static int acpi_processor_get_info(struct acpi_device *device)
>         } else {
>                 /*
>                  * Declared with "Device" statement; match _UID.
> -                * Note that we don't handle string _UIDs yet.
>                  */
>                 status = acpi_evaluate_integer(pr->handle, METHOD_NAME__UID,
>                                                 NULL, &value);
> --

Applied as 5.10-rc material with edited changelog and subject, thanks!
diff mbox series

Patch

diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c
index b51ddf3..710605f 100644
--- a/drivers/acpi/acpi_processor.c
+++ b/drivers/acpi/acpi_processor.c
@@ -264,7 +264,6 @@  static int acpi_processor_get_info(struct acpi_device *device)
 	} else {
 		/*
 		 * Declared with "Device" statement; match _UID.
-		 * Note that we don't handle string _UIDs yet.
 		 */
 		status = acpi_evaluate_integer(pr->handle, METHOD_NAME__UID,
 						NULL, &value);