The end of modversions?

Oh, and technically, it gets far worse if you rely upon manually maintained ABI revisions. Now you have a situation in which - unless everyone is very careful to always remember to update the versioning whenever anything that depends upon a symbol changes (and that's not just the interface, that's any recursively using a structure referenced from a structure in the interface) - you can have modules that "load" and will crash the kernel. That's exactly the inverse of ideal. The reason for the complex CRC trickery is to ensure that - to a first approximation - nothing in the chain of dependencies in terms of structures used by a symbol has changed.