[dpdk-dev] [PATCH v7 1/3] ethdev: fix adding invalid MAC addr

[Yang, Qiming]

Hi, Dai wei

>  static void
> diff --git a/drivers/net/e1000/igb_ethdev.c
> b/drivers/net/e1000/igb_ethdev.c index b6b81cb..e8c6282 100644
> --- a/drivers/net/e1000/igb_ethdev.c
> +++ b/drivers/net/e1000/igb_ethdev.c
> @@ -171,9 +171,9 @@ static int eth_igb_led_off(struct rte_eth_dev *dev);
> 
>  static void igb_intr_disable(struct e1000_hw *hw);  static int
> igb_get_rx_buffer_size(struct e1000_hw *hw); -static void
> eth_igb_rar_set(struct rte_eth_dev *dev,
> -		struct ether_addr *mac_addr,
> -		uint32_t index, uint32_t pool);
> +static int eth_igb_rar_set(struct rte_eth_dev *dev,
> +			   struct ether_addr *mac_addr,
> +			   uint32_t index, uint32_t pool);
>  static void eth_igb_rar_clear(struct rte_eth_dev *dev, uint32_t index);
> static void eth_igb_default_mac_addr_set(struct rte_eth_dev *dev,
>  		struct ether_addr *addr);
> @@ -3079,7 +3079,7 @@ eth_igb_flow_ctrl_set(struct rte_eth_dev *dev,
> struct rte_eth_fc_conf *fc_conf)  }
> 
>  #define E1000_RAH_POOLSEL_SHIFT      (18)
> -static void
> +static int
>  eth_igb_rar_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr,
>  	        uint32_t index, __rte_unused uint32_t pool)  { @@ -3090,6
> +3090,7 @@ eth_igb_rar_set(struct rte_eth_dev *dev, struct ether_addr
> *mac_addr,
>  	rah = E1000_READ_REG(hw, E1000_RAH(index));
>  	rah |= (0x1 << (E1000_RAH_POOLSEL_SHIFT + pool));
>  	E1000_WRITE_REG(hw, E1000_RAH(index), rah);
> +	return 0;
>  }
What's the meaning to add a return here? Return 0 can't represent adding an invalid or valid address, it's meaningless.