From 763716a55cb1f480ffe1a9702e6b5d9ea1a80a24 Mon Sep 17 00:00:00 2001 From: Matthew Hagan Date: Sat, 25 Sep 2021 11:36:27 +0000 Subject: [PATCH] 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 Reviewed-by: Andrew Lunn Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bgmac-platform.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/net/ethernet/broadcom/bgmac-platform.c +++ b/drivers/net/ethernet/broadcom/bgmac-platform.c @@ -193,6 +193,9 @@ static int bgmac_probe(struct platform_d 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");