Function depth_to_mask_1b

dpdk/lib/lpm/rte_lpm6.c:1129–1136

* Convert a depth to a one byte long mask * Example: 4 will be converted to 0xF0 */

 *   Example: 4 will be converted to 0xF0
 */
static uint8_t __attribute__((pure))
depth_to_mask_1b(uint8_t depth)
{
	/* To calculate a mask start with a 1 on the left hand side and right
	 * shift while populating the left hand side with 1's
	 */
	return (signed char)0x80 >> (depth - 1);
}

/*
 * Find a less specific rule