When a user port does not have a label in device tree, and we thus
fall back to the eth%d scheme, the proper constant to use is
NET_NAME_ENUM. See also commit e9f656b7a214 ("net: ethernet: set
default assignment identifier to NET_NAME_ENUM"), which in turn quoted
commit 685343fc3ba6 ("net: add name_assign_type netdev attribute"):

    ... when the kernel has given the interface a name using global
    device enumeration based on order of discovery (ethX, wlanY, etc)
    ... are labelled NET_NAME_ENUM.

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
---
 net/dsa/slave.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index dfefcc4a9ccf..821ab79bb60a 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -2388,7 +2388,7 @@ int dsa_slave_create(struct dsa_port *port)
 		assign_type = NET_NAME_PREDICTABLE;
 	} else {
 		name = "eth%d";
-		assign_type = NET_NAME_UNKNOWN;
+		assign_type = NET_NAME_ENUM;
 	}
 
 	slave_dev = alloc_netdev_mqs(sizeof(struct dsa_slave_priv), name,
-- 
2.37.2

On 11/16/2022 2:52 AM, Rasmus Villemoes wrote:
> When a user port does not have a label in device tree, and we thus
> fall back to the eth%d scheme, the proper constant to use is
> NET_NAME_ENUM. See also commit e9f656b7a214 ("net: ethernet: set
> default assignment identifier to NET_NAME_ENUM"), which in turn quoted
> commit 685343fc3ba6 ("net: add name_assign_type netdev attribute"):
> 
>      ... when the kernel has given the interface a name using global
>      device enumeration based on order of discovery (ethX, wlanY, etc)
>      ... are labelled NET_NAME_ENUM.
> 
> Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>

Reviewed-by: Florian Fainelli <f.faineli@gmail.com>
-- 
Florian

On Wed, Nov 16, 2022 at 11:52:04AM +0100, Rasmus Villemoes wrote:
> When a user port does not have a label in device tree, and we thus
> fall back to the eth%d scheme, the proper constant to use is
> NET_NAME_ENUM. See also commit e9f656b7a214 ("net: ethernet: set
> default assignment identifier to NET_NAME_ENUM"), which in turn quoted
> commit 685343fc3ba6 ("net: add name_assign_type netdev attribute"):
> 
>     ... when the kernel has given the interface a name using global
>     device enumeration based on order of discovery (ethX, wlanY, etc)
>     ... are labelled NET_NAME_ENUM.
> 
> Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>

Reviewed-by: Andrew Lunn <andrew@lunn.ch>

    Andrew