libnvdimm: Replace guid_copy() with import_guid() where it makes sense

There is a specific API to treat raw data as GUID, i.e. import_guid().
Use it instead of guid_copy() with explicit casting.

Signed-off-by: Andy Shevchenko <[email protected]>
Reviewed-by: Ira Weiny <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dan Williams <[email protected]>

Author: andy-shev

drivers/acpi/nfit/core.c

@@ -2293,7 +2293,7 @@ static int acpi_nfit_init_interleave_set(struct acpi_nfit_desc *acpi_desc,
 	nd_set = devm_kzalloc(dev, sizeof(*nd_set), GFP_KERNEL);
 	if (!nd_set)
 		return -ENOMEM;
-	guid_copy(&nd_set->type_guid, (guid_t *) spa->range_guid);
+	import_guid(&nd_set->type_guid, spa->range_guid);
 
 	info = devm_kzalloc(dev, sizeof_nfit_set_info(nr), GFP_KERNEL);
 	if (!info)