Function depth_to_mask

dpdk/lib/lpm/rte_lpm.c:85–94

* Converts a given depth value to its corresponding mask value. * * depth (IN) : range = 1 - 32 * mask (OUT) : 32bit mask */

 * mask   (OUT)		: 32bit mask
 */
static uint32_t __attribute__((pure))
depth_to_mask(uint8_t depth)
{
	VERIFY_DEPTH(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 (int)0x80000000 >> (depth - 1);
}

/*
 * Converts given depth value to its corresponding range value.