On Tue, Mar 26, 2019 at 02:03:19PM +0100, Lukas Wunner wrote: > On Tue, Mar 26, 2019 at 07:08:18PM +0900, William Breathitt Gray wrote: > > On Tue, Mar 26, 2019 at 10:43:45AM +0100, Lukas Wunner wrote: > > In this case, bitmap_get_value8 could be simplified to something like > > this: > > > > index = BIT_WORD(start); > > offset = start % BITS_PER_LONG; > > return (bitmap[index] >> offset) & 0xFF; > > Hm, shouldn't that be "offset = round_down(start, 8)" ? No, the index points to the word, the offset points to the offset inside word. > (I prefer the multi-line version FWIW.) +1 here. > > Would it be better to define bitmap_get_value8 as a macro then? > > Or a static inline. Please, no macro. It disadvantages in terms of type checking. -- With Best Regards, Andy Shevchenko
