+module_init(auxiliary_bus_init);
+module_exit(auxiliary_bus_exit);
+
+MODULE_LICENSE("GPL");
Per above SPDX is v2 only, so...
MODULE_LICENSE("GPL v2");
added v2.
"GPL v2" is the same as "GPL" here, it does not have any additional meaning.
https://www.kernel.org/doc/html/latest/process/license-rules.html
“GPL” Module is licensed under GPL version 2. This does not express any
distinction between GPL-2.0-only or GPL-2.0-or-later. The exact license
information can only be determined via the license information in the
corresponding source files.
“GPL v2” Same as “GPL”. It exists for historic reasons.