What is notable about this thread? Martin is proposing to replace pre-existing (functional) components of the kernel with his own contributions. The maintainers

What is notable about this thread? Martin is proposing to replace pre-existing (functional) components of the kernel with his own contributions. The maintainers responsible for these components want to understand this implementation before merging it. Spending 2 months discussing a patch like this is not uncommon, particularly if we're talking about shot-in-the-dark implementations of undocumented hardware interfaces.