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    SubjectRe: [PATCH v13 01/11] bitops: Introduce the for_each_set_clump8 macro
    On Wed, Mar 27, 2019 at 01:58:45PM +0900, William Breathitt Gray wrote:
    > This macro iterates for each 8-bit group of bits (clump) with set bits,
    > within a bitmap memory region. For each iteration, "start" is set to the
    > bit offset of the found clump, while the respective clump value is
    > stored to the location pointed by "clump". Additionally, the
    > bitmap_get_value8 and bitmap_set_value8 functions are introduced to
    > respectively get and set an 8-bit value in a bitmap memory region.

    > +unsigned long bitmap_get_value8(const unsigned long *addr, unsigned long start)
    > +{
    > + const size_t idx = BIT_WORD(start);
    > + const unsigned long offset = start % BITS_PER_LONG;
    > +
    > + return (addr[idx] >> offset) & 0xFF;

    I would spell index instead of idx, but it's minor and up to you.

    > +}

    --
    With Best Regards,
    Andy Shevchenko


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