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    SubjectRe: [PATCH 5/8] bitsperlong.h: introduce SMALL_CONST() macro
    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


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