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

dpaa2-eth: retry the probe when the MAC is not yet discovered on the bus 

The fsl_mc_get_endpoint() function now returns -EPROBE_DEFER when the
dpmac device was not yet discovered by the fsl-mc bus. When this
happens, pass the error code up so that we can retry the probe at a
later time.

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Ioana Ciornei 2021-01-08 11:07:25 +02:00 committed by Jakub Kicinski
parent ef57e6c9f7
commit 47325da28e
1 changed files with 5 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
View File

@ -4042,7 +4042,11 @@ static int dpaa2_eth_connect_mac(struct dpaa2_eth_priv *priv)
dpni_dev = to_fsl_mc_device(priv->net_dev->dev.parent);
dpmac_dev = fsl_mc_get_endpoint(dpni_dev);
if (IS_ERR_OR_NULL(dpmac_dev) || dpmac_dev->dev.type != &fsl_mc_bus_dpmac_type)
if (PTR_ERR(dpmac_dev) == -EPROBE_DEFER)
return PTR_ERR(dpmac_dev);
if (IS_ERR(dpmac_dev) || dpmac_dev->dev.type != &fsl_mc_bus_dpmac_type)
return 0;
mac = kzalloc(sizeof(struct dpaa2_mac), GFP_KERNEL);