ACPI fixes for 6.9-rc4

- Modify the ACPI device enumeration code to avoid counting
    dependencies that have been met already as unmet (Hans de Goede).
 
  - Make _UID matching take the integer value of 0 into account as
    appropriate (Raag Jadav).
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Merge tag 'acpi-6.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fixes from Rafael Wysocki:
 "These fix the handling of dependencies between devices in the ACPI
  device enumeration code and address a _UID matching regression from
  the 6.8 development cycle.

  Specifics:

   - Modify the ACPI device enumeration code to avoid counting
     dependencies that have been met already as unmet (Hans de Goede)

   - Make _UID matching take the integer value of 0 into account as
     appropriate (Raag Jadav)"

* tag 'acpi-6.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: bus: allow _UID matching for integer zero
  ACPI: scan: Do not increase dep_unmet for already met dependencies
This commit is contained in:
Linus Torvalds 2024-04-11 12:03:43 -07:00
commit 00dcf5d862
2 changed files with 7 additions and 4 deletions

View File

@ -1843,7 +1843,8 @@ static void acpi_scan_dep_init(struct acpi_device *adev)
if (dep->honor_dep)
adev->flags.honor_deps = 1;
adev->dep_unmet++;
if (!dep->met)
adev->dep_unmet++;
}
}
}

View File

@ -911,17 +911,19 @@ static inline bool acpi_int_uid_match(struct acpi_device *adev, u64 uid2)
* acpi_dev_hid_uid_match - Match device by supplied HID and UID
* @adev: ACPI device to match.
* @hid2: Hardware ID of the device.
* @uid2: Unique ID of the device, pass 0 or NULL to not check _UID.
* @uid2: Unique ID of the device, pass NULL to not check _UID.
*
* Matches HID and UID in @adev with given @hid2 and @uid2. Absence of @uid2
* will be treated as a match. If user wants to validate @uid2, it should be
* done before calling this function.
*
* Returns: %true if matches or @uid2 is 0 or NULL, %false otherwise.
* Returns: %true if matches or @uid2 is NULL, %false otherwise.
*/
#define acpi_dev_hid_uid_match(adev, hid2, uid2) \
(acpi_dev_hid_match(adev, hid2) && \
(!(uid2) || acpi_dev_uid_match(adev, uid2)))
/* Distinguish integer 0 from NULL @uid2 */ \
(_Generic(uid2, ACPI_STR_TYPES(!(uid2)), default: 0) || \
acpi_dev_uid_match(adev, uid2)))
void acpi_dev_clear_dependencies(struct acpi_device *supplier);
bool acpi_dev_ready_for_enumeration(const struct acpi_device *device);