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| author | Xiaofei Shen <xiaofeis@codeaurora.org> | 2019-03-29 11:04:58 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-11-10 12:36:02 +0100 |
| commit | 8069a08d35b72e16486a6a81eb06f964b2e1432b (patch) | |
| tree | 828ffd804b308ecb9888a1bfb0170d9d46dcbcea | |
| parent | 3ab5872df9211447be82d0b01a2ec5731aa20621 (diff) | |
| download | linux-stable-8069a08d35b72e16486a6a81eb06f964b2e1432b.tar.gz linux-stable-8069a08d35b72e16486a6a81eb06f964b2e1432b.tar.bz2 linux-stable-8069a08d35b72e16486a6a81eb06f964b2e1432b.zip | |
net: dsa: read mac address from DT for slave device
commit a2c7023f7075ca9b80f944d3f20f60e6574538e2 upstream.
Before creating a slave netdevice, get the mac address from DTS and
apply in case it is valid.
Signed-off-by: Xiaofei Shen <xiaofeis@codeaurora.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Cc: Pali Rohár <pali@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | include/net/dsa.h | 1 | ||||
| -rw-r--r-- | net/dsa/dsa2.c | 1 | ||||
| -rw-r--r-- | net/dsa/slave.c | 5 |
3 files changed, 6 insertions, 1 deletions
diff --git a/include/net/dsa.h b/include/net/dsa.h index 461e8a7661b7..d28df7adf948 100644 --- a/include/net/dsa.h +++ b/include/net/dsa.h @@ -196,6 +196,7 @@ struct dsa_port { unsigned int index; const char *name; const struct dsa_port *cpu_dp; + const char *mac; struct device_node *dn; unsigned int ageing_time; u8 stp_state; diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c index b036c55f5cb1..7c10bc4dacd3 100644 --- a/net/dsa/dsa2.c +++ b/net/dsa/dsa2.c @@ -261,6 +261,7 @@ static int dsa_port_setup(struct dsa_port *dp) int err = 0; memset(&dp->devlink_port, 0, sizeof(dp->devlink_port)); + dp->mac = of_get_mac_address(dp->dn); if (dp->type != DSA_PORT_TYPE_UNUSED) err = devlink_port_register(ds->devlink, &dp->devlink_port, diff --git a/net/dsa/slave.c b/net/dsa/slave.c index 8ee28b6016d8..d03c67e761df 100644 --- a/net/dsa/slave.c +++ b/net/dsa/slave.c @@ -1313,7 +1313,10 @@ int dsa_slave_create(struct dsa_port *port) slave_dev->features = master->vlan_features | NETIF_F_HW_TC; slave_dev->hw_features |= NETIF_F_HW_TC; slave_dev->ethtool_ops = &dsa_slave_ethtool_ops; - eth_hw_addr_inherit(slave_dev, master); + if (port->mac && is_valid_ether_addr(port->mac)) + ether_addr_copy(slave_dev->dev_addr, port->mac); + else + eth_hw_addr_inherit(slave_dev, master); slave_dev->priv_flags |= IFF_NO_QUEUE; slave_dev->netdev_ops = &dsa_slave_netdev_ops; slave_dev->switchdev_ops = &dsa_slave_switchdev_ops; |