There are both maintainers and lists listed in MAINTAINERS (L: entries) -- did you Cc the mailing list? It might be good to bump the mailing list email if it's been several weeks, asking if there's more information you could provide.
This is for timekeeping, which doesn’t look to have its own mailing list (just points me to the vger linux-kernel mail list). I didn’t Cc that mailing list, although I could.
The LKML is still the right place to send patches that don't fall under one of the other subsystem mailing lists. When in doubt you can ask the LKML about the right place to send a patch.