UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

net: bgmac-platform: handle mac-address deferral 

This patch is a replication of Christian Lamparter's "net: bgmac-bcma:
handle deferred probe error due to mac-address" patch for the
bgmac-platform driver [1].

As is the case with the bgmac-bcma driver, this change is to cover the
scenario where the MAC address cannot yet be discovered due to reliance
on an nvmem provider which is yet to be instantiated, resulting in a
random address being assigned that has to be manually overridden.

[1] https://lore.kernel.org/netdev/20210919115725.29064-1-chunkeey@gmail.com

Signed-off-by: Matthew Hagan <mnhagan88@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Matthew Hagan 2021-09-25 11:36:27 +00:00 committed by David S. Miller
parent 44b6aa2ef6
commit 763716a55c
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/net/ethernet/broadcom/bgmac-platform.c
View File

@ -192,6 +192,9 @@ static int bgmac_probe(struct platform_device *pdev)
bgmac->dma_dev = &pdev->dev;
ret = of_get_mac_address(np, bgmac->net_dev->dev_addr);
if (ret == -EPROBE_DEFER)
return ret;
if (ret)
dev_warn(&pdev->dev,
"MAC address not present in device tree\n");