diff options
| author | Bjørn Mork <bjorn@mork.no> | 2013-08-30 18:08:44 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-09-03 20:57:49 -0400 |
| commit | 83a093b486ecfd25e7b04b82f6a388f24bd274b2 (patch) | |
| tree | 599cfa0d7929e8e152bb4d2f5a5d64c74b87db3b | |
| parent | 5a17a390de7bdbcfff9b8f344273a886ca4cf8bf (diff) | |
net: etherdevice: add address inherit helper
Some etherdevices inherit their address from a parent or
master device. The addr_assign_type should be updated along
with the address in these cases. Adding a helper function
to simplify this.
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/linux/etherdevice.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/etherdevice.h b/include/linux/etherdevice.h index c623861964e4..d8b512496e50 100644 --- a/include/linux/etherdevice.h +++ b/include/linux/etherdevice.h @@ -199,6 +199,21 @@ static inline void eth_hw_addr_random(struct net_device *dev) } /** + * eth_hw_addr_inherit - Copy dev_addr from another net_device + * @dst: pointer to net_device to copy dev_addr to + * @src: pointer to net_device to copy dev_addr from + * + * Copy the Ethernet address from one net_device to another along with + * the address attributes (addr_assign_type). + */ +static inline void eth_hw_addr_inherit(struct net_device *dst, + struct net_device *src) +{ + dst->addr_assign_type = src->addr_assign_type; + memcpy(dst->dev_addr, src->dev_addr, ETH_ALEN); +} + +/** * compare_ether_addr - Compare two Ethernet addresses * @addr1: Pointer to a six-byte array containing the Ethernet address * @addr2: Pointer other six-byte array containing the Ethernet address |