On Fri, Feb 16, 2018 at 11:35:20AM +0100, Peter Zijlstra wrote:> #define BIT_U32_MASK(nr) (1UL << ((nr) % 32))> #define BIT_U32_WORD(nr) (((nr) / 32) ^ (4 * __BIG_ENDIAN__))s/4 *//it's already a 4 byte offset.