lib/crypto/

This characterization seems a bit unfair, considering that all the new functions have kerneldoc. Perhaps you were looking for a libcrypto.rst file? We'll add that at some point, but there's actually not much information that could go there. That's kind of the point. These are just library functions that implement each of the algorithms for internal use by the kernel, and using standard conventions (e.g. KUnit). So unlike the traditional crypto API where's a complex architecture that developers have to understand, with the library functions there's not a whole lot to add on top of the kerneldoc itself.

Or maybe this is as simple as the kerneldoc not having corresponding `.. kernel-doc::` directives in Documentation/ to make it appear in the HTML documentation, which made it get overlooked?