Hi, On Fri, 26 Feb 2016 09:44:00 -0800 "H. Peter Anvin" <h...@zytor.com> wrote: > > > __u64 is okay, "unsigned long" is really messy in the presence of 32-on-64 > bit ABIs...
Yeah, but unfortunately, any 64 bit scalar type here will change the alignment of the enclosing unions on (some) 32 bit platforms and thus break the ABI. -- Cheers, Stephen Rothwell