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MFC 348757,351225: acpi and nvdimm location_str updates

Description

MFC 348757,351225: acpi and nvdimm location_str updates

348757:
nvdimm: Provide nvdimm location information

Provide the acpi handle path as the location string for the nvdimm
children of the nvdimm_root device.

351225:
Don't set the string "unknown" as a device's location_str

Return an empty string when the location is unknown instead of the
string "unknown". This ensures that all location entries are of
the form key=val.

Approved by: scottl (mentor)
Sponsored by: Intel Corporation
Differential Revision: https://reviews.freebsd.org/D20644

Details

Committed
scottphSep 9 2019, 8:49 PM
Differential Revision
D20644: MFC 348757,351225: acpi and nvdimm location_str updates
Parents
rS352107: Reverse the referenced tables.
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