[PATCH -mm 0/2] PM: Update system power off code

Hi,

The following two patches update the system power off code.  They:
* remove the (unnecessary) call to acpi_sleep_prepare(ACPI_STATE_S4) from
  acpi_shutdown()
* remove acpi_sysclass and device_acpi that are only defined to register the
  ACPI power off preparation callback in acpi_shutdown() and introduce more
  general mechanism instead

Greetings,
Rafael


-- 
"Premature optimization is the root of all evil." - Donald Knuth

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Follow-Ups:
- [PATCH -mm 2/2] PM: Introduce pm_power_off_prepare
  - From: "Rafael J. Wysocki" <[email protected]>
- [PATCH -mm 1/2] ACPI: Do not prepare for hibernation in acpi_shutdown
  - From: "Rafael J. Wysocki" <[email protected]>

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