Colin Ian King <colin.k...@canonical.com> wrote: > >> - mask = (1 << nr_slots) - 1; > >> + mask = (1ULL << nr_slots) - 1; > > > > nr_slots cannot be larger than 9, so what I wrote is actually fine and is > > more efficient on a 32-bit machine. > > ok, sorry about the noise.
It would be possible to cast the value to u64 before assigning it, I suppose. Would that help? E.g.: mask = (u64)((1 << nr_slots) - 1); It looks a bit odd, though, since the cast is made implicitly anyway. David