On Fri, Feb 22, 2019 at 1:14 AM Nick Desaulniers <ndesaulni...@google.com> wrote: > On Thu, Feb 21, 2019 at 12:08 AM Nathan Chancellor <natechancel...@gmail.com> > wrote:
> One thing I'm curious about, is "why does do_div exist?" When should I > use do_div vs div_u64 (not div_s64 as is used in this patch)? I think do_div() is mostly historic, we've had it since the early days when C compilers were not as good with inline functions. The various other versions are regular functions, and I tend to prefer them for new code, but do_div() is widely known and documented, so I have little hope of it going away any time soon. Arnd