From: Siddharth Vadapalli s-vadapalli@ti.com
[ Upstream commit 0680e20af5fbf41df8a11b11bd9a7c25b2ca0746 ]
Renaming interfaces using udevd depends on the interface being registered before its netdev is registered. Otherwise, udevd reads an empty phys_port_name value, resulting in the interface not being renamed.
Fix this by registering the interface before registering its netdev by invoking am65_cpsw_nuss_register_devlink() before invoking register_netdev() for the interface.
Move the function call to devlink_port_type_eth_set(), invoking it after register_netdev() is invoked, to ensure that netlink notification for the port state change is generated after the netdev is completely initialized.
Fixes: 58356eb31d60 ("net: ti: am65-cpsw-nuss: Add devlink support") Signed-off-by: Siddharth Vadapalli s-vadapalli@ti.com Link: https://lore.kernel.org/r/20220706070208.12207-1-s-vadapalli@ti.com Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/ti/am65-cpsw-nuss.c | 17 ++++++++++------- 1 file changed, 10 insertions(+), 7 deletions(-)
diff --git a/drivers/net/ethernet/ti/am65-cpsw-nuss.c b/drivers/net/ethernet/ti/am65-cpsw-nuss.c index 6d978dbf708f..298953053407 100644 --- a/drivers/net/ethernet/ti/am65-cpsw-nuss.c +++ b/drivers/net/ethernet/ti/am65-cpsw-nuss.c @@ -2475,7 +2475,6 @@ static int am65_cpsw_nuss_register_devlink(struct am65_cpsw_common *common) port->port_id, ret); goto dl_port_unreg; } - devlink_port_type_eth_set(dl_port, port->ndev); } devlink_register(common->devlink); return ret; @@ -2519,6 +2518,7 @@ static void am65_cpsw_unregister_devlink(struct am65_cpsw_common *common) static int am65_cpsw_nuss_register_ndevs(struct am65_cpsw_common *common) { struct device *dev = common->dev; + struct devlink_port *dl_port; struct am65_cpsw_port *port; int ret = 0, i;
@@ -2535,6 +2535,10 @@ static int am65_cpsw_nuss_register_ndevs(struct am65_cpsw_common *common) return ret; }
+ ret = am65_cpsw_nuss_register_devlink(common); + if (ret) + return ret; + for (i = 0; i < common->port_num; i++) { port = &common->ports[i];
@@ -2547,25 +2551,24 @@ static int am65_cpsw_nuss_register_ndevs(struct am65_cpsw_common *common) i, ret); goto err_cleanup_ndev; } + + dl_port = &port->devlink_port; + devlink_port_type_eth_set(dl_port, port->ndev); }
ret = am65_cpsw_register_notifiers(common); if (ret) goto err_cleanup_ndev;
- ret = am65_cpsw_nuss_register_devlink(common); - if (ret) - goto clean_unregister_notifiers; - /* can't auto unregister ndev using devm_add_action() due to * devres release sequence in DD core for DMA */
return 0; -clean_unregister_notifiers: - am65_cpsw_unregister_notifiers(common); + err_cleanup_ndev: am65_cpsw_nuss_cleanup_ndev(common); + am65_cpsw_unregister_devlink(common);
return ret; }