On 10/15/21 3:16 PM, Jakub Kicinski wrote:
> We'll want to make netdev->dev_addr const, remove the local
> helper which is missing a const qualifier on the argument
> and use ether_addr_to_u64().

LGTM. ibmveth_encode_mac_addr() is clearly code duplication of
ether_addr_to_u64() minus the const qualifier.

Reviewed-by: Tyrel Datwyler <tyr...@linux.ibm.com>

> 
> Similar story to mlx4.
> 
> Signed-off-by: Jakub Kicinski <k...@kernel.org>
> ---
> CC: cforn...@linux.ibm.com
> CC: m...@ellerman.id.au
> CC: b...@kernel.crashing.org
> CC: pau...@samba.org
> CC: linuxppc-dev@lists.ozlabs.org
> ---
>  drivers/net/ethernet/ibm/ibmveth.c | 17 +++--------------
>  1 file changed, 3 insertions(+), 14 deletions(-)
> 
> diff --git a/drivers/net/ethernet/ibm/ibmveth.c 
> b/drivers/net/ethernet/ibm/ibmveth.c
> index 836617fb3f40..45ba40cf4d07 100644
> --- a/drivers/net/ethernet/ibm/ibmveth.c
> +++ b/drivers/net/ethernet/ibm/ibmveth.c
> @@ -483,17 +483,6 @@ static int ibmveth_register_logical_lan(struct 
> ibmveth_adapter *adapter,
>       return rc;
>  }
> 
> -static u64 ibmveth_encode_mac_addr(u8 *mac)
> -{
> -     int i;
> -     u64 encoded = 0;
> -
> -     for (i = 0; i < ETH_ALEN; i++)
> -             encoded = (encoded << 8) | mac[i];
> -
> -     return encoded;
> -}
> -
>  static int ibmveth_open(struct net_device *netdev)
>  {
>       struct ibmveth_adapter *adapter = netdev_priv(netdev);
> @@ -553,7 +542,7 @@ static int ibmveth_open(struct net_device *netdev)
>       adapter->rx_queue.num_slots = rxq_entries;
>       adapter->rx_queue.toggle = 1;
> 
> -     mac_address = ibmveth_encode_mac_addr(netdev->dev_addr);
> +     mac_address = ether_addr_to_u64(netdev->dev_addr);
> 
>       rxq_desc.fields.flags_len = IBMVETH_BUF_VALID |
>                                       adapter->rx_queue.queue_len;
> @@ -1476,7 +1465,7 @@ static void ibmveth_set_multicast_list(struct 
> net_device *netdev)
>               netdev_for_each_mc_addr(ha, netdev) {
>                       /* add the multicast address to the filter table */
>                       u64 mcast_addr;
> -                     mcast_addr = ibmveth_encode_mac_addr(ha->addr);
> +                     mcast_addr = ether_addr_to_u64(ha->addr);
>                       lpar_rc = h_multicast_ctrl(adapter->vdev->unit_address,
>                                                  IbmVethMcastAddFilter,
>                                                  mcast_addr);
> @@ -1606,7 +1595,7 @@ static int ibmveth_set_mac_addr(struct net_device *dev, 
> void *p)
>       if (!is_valid_ether_addr(addr->sa_data))
>               return -EADDRNOTAVAIL;
> 
> -     mac_address = ibmveth_encode_mac_addr(addr->sa_data);
> +     mac_address = ether_addr_to_u64(addr->sa_data);
>       rc = h_change_logical_lan_mac(adapter->vdev->unit_address, mac_address);
>       if (rc) {
>               netdev_err(adapter->netdev, "h_change_logical_lan_mac failed 
> with rc=%d\n", rc);
> 

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