On Sat, Jan 30, 2021 at 11:17:16AM -0800, Yury Norov wrote: > Many algorithms become simpler if they are passed with relatively small > input values. One example is bitmap operations when the whole bitmap fits > into one word. To implement such simplifications, linux/bitmap.h declares > small_const_nbits() macro. > > Other subsystems may also benefit from optimizations of this sort, like > find_bit API in the following patches. So it looks helpful to generalize > the macro and extend it's visibility. Hmm... Are we really good to allow 0 as a parameter to it? I remember we had a thread at some point where Rasmus explained why 0 is excluded. ... > --- a/tools/include/asm-generic/bitsperlong.h > +++ b/tools/include/asm-generic/bitsperlong.h Tools part in a separate patch? -- With Best Regards, Andy Shevchenko
