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由 Jarkko Nikula 提交于
Get pointer to the struct acpi_device by using ACPI_COMPANION() macro. This is more efficient than using ACPI_HANDLE() and acpi_bus_get_device(). Signed-off-by: NJarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by: NMark Brown <broonie@kernel.org>
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