TB_ROUTE_SHIFT 176 drivers/thunderbolt/icm.c return depth ? route & ~(0xffULL << (depth - 1) * TB_ROUTE_SHIFT) : 0; TB_ROUTE_SHIFT 640 drivers/thunderbolt/tb.h return (fls64(route) + TB_ROUTE_SHIFT - 1) / TB_ROUTE_SHIFT;