2022-11-11 15:51:29 +00:00
|
|
|
From e93a766da57fff3273bcb618edf5dfca1fb86b89 Mon Sep 17 00:00:00 2001
|
|
|
|
|
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
|
|
|
|
|
Date: Thu, 15 Sep 2022 15:30:13 +0200
|
|
|
|
|
Subject: [PATCH] net: broadcom: bcm4908_enet: handle -EPROBE_DEFER when
|
|
|
|
|
getting MAC
|
|
|
|
|
MIME-Version: 1.0
|
|
|
|
|
Content-Type: text/plain; charset=UTF-8
|
|
|
|
|
Content-Transfer-Encoding: 8bit
|
|
|
|
|
|
|
|
|
|
Reading MAC from OF may return -EPROBE_DEFER if underlaying NVMEM device
|
|
|
|
|
isn't ready yet. In such case pass that error code up and "wait" to be
|
|
|
|
|
probed later.
|
|
|
|
|
|
|
|
|
|
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
|
|
|
|
|
Link: https://lore.kernel.org/r/20220915133013.2243-1-zajec5@gmail.com
|
|
|
|
|
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
|
|
|
---
|
|
|
|
|
drivers/net/ethernet/broadcom/bcm4908_enet.c | 13 +++++++++----
|
|
|
|
|
1 file changed, 9 insertions(+), 4 deletions(-)
|
|
|
|
|
|
|
|
|
|
--- a/drivers/net/ethernet/broadcom/bcm4908_enet.c
|
|
|
|
|
+++ b/drivers/net/ethernet/broadcom/bcm4908_enet.c
|
|
|
|
|
@@ -720,6 +720,8 @@ static int bcm4908_enet_probe(struct pla
|
|
|
|
|
|
|
|
|
|
SET_NETDEV_DEV(netdev, &pdev->dev);
|
2023-07-27 13:22:32 +00:00
|
|
|
err = of_get_ethdev_address(dev->of_node, netdev);
|
2022-11-11 15:51:29 +00:00
|
|
|
+ if (err == -EPROBE_DEFER)
|
|
|
|
|
+ goto err_dma_free;
|
|
|
|
|
if (err)
|
|
|
|
|
eth_hw_addr_random(netdev);
|
|
|
|
|
netdev->netdev_ops = &bcm4908_enet_netdev_ops;
|
|
|
|
|
@@ -730,14 +732,17 @@ static int bcm4908_enet_probe(struct pla
|
|
|
|
|
netif_napi_add(netdev, &enet->rx_ring.napi, bcm4908_enet_poll_rx, NAPI_POLL_WEIGHT);
|
|
|
|
|
|
|
|
|
|
err = register_netdev(netdev);
|
|
|
|
|
- if (err) {
|
|
|
|
|
- bcm4908_enet_dma_free(enet);
|
|
|
|
|
- return err;
|
|
|
|
|
- }
|
|
|
|
|
+ if (err)
|
|
|
|
|
+ goto err_dma_free;
|
|
|
|
|
|
|
|
|
|
platform_set_drvdata(pdev, enet);
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
+
|
|
|
|
|
+err_dma_free:
|
|
|
|
|
+ bcm4908_enet_dma_free(enet);
|
|
|
|
|
+
|
|
|
|
|
+ return err;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int bcm4908_enet_remove(struct platform_device *pdev)
|
