On Sun, 26 Mar 2017, Ard Biesheuvel wrote: > [...] > +static const u32 rco_tab[10] = { 1, 2, 4, 8, 16, 32, 64, 128, 27, 54 }; You could consider using u8 for this table. This is a tiny space saving and normally it shouldn't make the runtime any slower on most architectures. Nicolas