In these cases the page size and firmware page size are the same, and
clang warns that the roundup operation is a no-op
(-Wtautological-compare). I can't see a way to fix this other than to
conditionally compile the code in question, or to disable the
diagnostic. Suggestions for alternate solutions are welcome.
BTW it is kind of perplexing to me that clang warns about a no-op here,
but the same expression performs a right-shift by zero and we don't get
a warning about that. Perhaps clang should be more accomodating here,
perhaps by providing a different warning flag? -Wtautological-compare
is generally useful I think.