1)
struct rte_flow *
rte_pmd_dpaa2_mux_flow_create(uint32_t dpdmux_id,
                              struct rte_flow_item *pattern[],
                              struct rte_flow_action *actions[])

'- 'pattern' & 'actions' & 'pattern[0]' & 'actions[0]', should be checked against NULL before using them


2)
int
rte_pmd_dpaa2_set_custom_hash(uint16_t port_id,
                              uint16_t offset,
                              uint8_t size)

- 'port_id' should be checked if it is valid and if it is 'dpaa2' port or not