diff options
| author | Rosen Penev <rosenp@gmail.com> | 2024-10-22 03:22:45 +0300 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2024-10-29 17:33:23 +0300 |
| commit | 707f1c4b6a2cf0bd290a63b6f3701878bb15e05f (patch) | |
| tree | a85590509727f5eb738387314721bf02d040c98a /drivers/net/ethernet/ibm | |
| parent | af4698be49e856589f559fee2054de5bc7d5b72f (diff) | |
| download | linux-707f1c4b6a2cf0bd290a63b6f3701878bb15e05f.tar.xz | |
net: ibm: emac: generate random MAC if not found
On this Cisco MX60W, u-boot sets the local-mac-address property.
Unfortunately by default, the MAC is wrong and is actually located on a
UBI partition. Which means nvmem needs to be used to grab it.
In the case where that fails, EMAC fails to initialize instead of
generating a random MAC as many other drivers do.
Match behavior with other drivers to have a working ethernet interface.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Reviewed-by: Shannon Nelson <shannon.nelson@amd.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'drivers/net/ethernet/ibm')
| -rw-r--r-- | drivers/net/ethernet/ibm/emac/core.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/net/ethernet/ibm/emac/core.c b/drivers/net/ethernet/ibm/emac/core.c index 1f45f2a78829..25b8a3556004 100644 --- a/drivers/net/ethernet/ibm/emac/core.c +++ b/drivers/net/ethernet/ibm/emac/core.c @@ -2937,9 +2937,12 @@ static int emac_init_config(struct emac_instance *dev) /* Read MAC-address */ err = of_get_ethdev_address(np, dev->ndev); - if (err) - return dev_err_probe(&dev->ofdev->dev, err, - "Can't get valid [local-]mac-address from OF !\n"); + if (err == -EPROBE_DEFER) + return err; + if (err) { + dev_warn(&dev->ofdev->dev, "Can't get valid mac-address. Generating random."); + eth_hw_addr_random(dev->ndev); + } /* IAHT and GAHT filter parameterization */ if (emac_has_feature(dev, EMAC_FTR_EMAC4SYNC)) { |