[PATCH AUTOSEL for 4.14 119/161] ACPI: processor_perflib: Do not send _PPC change notification if not ready

From: Chen Yu [ Upstream commit ba1edb9a5125a617d612f98eead14b9b84e75c3a ] The following warning was triggered after resumed from S3 - if all the nonboot CPUs were put offline before suspend: [ 1840.329515] unchecked MSR access error: RDMSR from 0x771 at rIP:

[PATCH AUTOSEL for 4.14 119/161] ACPI: processor_perflib: Do not send _PPC change notification if not ready

From: Chen Yu [ Upstream commit ba1edb9a5125a617d612f98eead14b9b84e75c3a ] The following warning was triggered after resumed from S3 - if all the nonboot CPUs were put offline before suspend: [ 1840.329515] unchecked MSR access error: RDMSR from 0x771 at rIP: 0x86061e3a