Kernel/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2025-01-08 14:13:53 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

net: etherdevice: add address inherit helper

Browse Source 
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>
This commit is contained in:
Bjørn Mork 2013-08-30 18:08:44 +02:00 committed by David S. Miller
parent 5a17a390de
commit 83a093b486
1 changed files with 15 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
include/linux/etherdevice.h
View File

@ -198,6 +198,21 @@ static inline void eth_hw_addr_random(struct net_device *dev)
eth_random_addr(dev->dev_addr);
}
/**
* 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