Dave Hansen <dave.hansen@xxxxxxxxx> writes: > On 12/18/19 12:59 PM, Michal Suchánek wrote: >>> I'd really just rather do %016lx *everywhere* than sprinkle the >>> PKEY_REG_FMTs around. >> Does lx work with u32 without warnings? > > Either way, I'd be happy to just make the x86 one u64 to make the whole > thing look more sane, It's userspace so you don't get u64, you only get __u64. And then you'll hit the fact that by default __u64 is unsigned long on powerpc and unsigned long long on x86, meaning you still can't use the same printf specifier. To avoid that you should define __SANE_USERSPACE_TYPES__ before including any headers, and then you'll get unsigned long long for __u64 everywhere and you can just use %llx. cheers
