Function acl_add_ptr_range

dpdk/lib/acl/acl_bld.c:308–329

* Add a pointer for a range of values */

 * Add a pointer for a range of values
 */
static int
acl_add_ptr_range(struct acl_build_context *context,
	struct rte_acl_node *root,
	struct rte_acl_node *node,
	uint8_t low,
	uint8_t high)
{
	uint32_t n;
	struct rte_acl_bitset bitset;

	/* clear the bitset values */
	for (n = 0; n < RTE_ACL_BIT_SET_SIZE; n++)
		bitset.bits[n] = 0;

	/* for each bit in range, add bit to set */
	for (n = 0; n < UINT8_MAX + 1; n++)
		if (n >= low && n <= high)
			bitset.bits[n / (sizeof(bits_t) * 8)] |=
				1U << (n % (sizeof(bits_t) * CHAR_BIT));

	return acl_add_ptr(context, root, node, &bitset);
}

/*
 * Generate a bitset from a byte value and mask.