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of: net: add a helper for loading netdev->dev_addr

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Commit 406f42fa0d ("net-next: When a bond have a massive amount
of VLANs...") introduced a rbtree for faster Ethernet address look
up. To maintain netdev->dev_addr in this tree we need to make all
the writes to it got through appropriate helpers.

There are roughly 40 places where netdev->dev_addr is passed
as the destination to a of_get_mac_address() call. Add a helper
which takes a dev pointer instead, so it can call an appropriate
helper.

Note that of_get_mac_address() already assumes the address is
6 bytes long (ETH_ALEN) so use eth_hw_addr_set().

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski
2021-10-06 18:06:55 -07:00
committed by David S. Miller
parent e330fb1459
commit d466effe28
2 changed files with 31 additions and 0 deletions
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6
include/linux/of_net.h
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@@ -14,6 +14,7 @@
struct net_device;
extern int of_get_phy_mode(struct device_node *np, phy_interface_t *interface);
extern int of_get_mac_address(struct device_node *np, u8 *mac);
int of_get_ethdev_address(struct device_node *np, struct net_device *dev);
extern struct net_device *of_find_net_device_by_node(struct device_node *np);
#else
static inline int of_get_phy_mode(struct device_node *np,
@@ -27,6 +28,11 @@ static inline int of_get_mac_address(struct device_node *np, u8 *mac)
return -ENODEV;
}
static inline int of_get_ethdev_address(struct device_node *np, struct net_device *dev)
{
return -ENODEV;
}
static inline struct net_device *of_find_net_device_by_node(struct device_node *np)
{
return NULL;