If the driver is built as a module, autoload won't work because the module alias information is not filled. So user-space can't match the registered device with the corresponding module.
Export the module alias information using the MODULE_DEVICE_TABLE() macro. Before this patch: $ modinfo drivers/net/ethernet/ezchip/nps_enet.ko | grep alias $ After this patch: $ modinfo drivers/net/ethernet/ezchip/nps_enet.ko | grep alias alias: of:N*T*Cezchip,nps-mgt-enetC* alias: of:N*T*Cezchip,nps-mgt-enet Signed-off-by: Javier Martinez Canillas <jav...@osg.samsung.com> --- drivers/net/ethernet/ezchip/nps_enet.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/ezchip/nps_enet.c b/drivers/net/ethernet/ezchip/nps_enet.c index f928e6f79c89..223f35cc034c 100644 --- a/drivers/net/ethernet/ezchip/nps_enet.c +++ b/drivers/net/ethernet/ezchip/nps_enet.c @@ -669,6 +669,7 @@ static const struct of_device_id nps_enet_dt_ids[] = { { .compatible = "ezchip,nps-mgt-enet" }, { /* Sentinel */ } }; +MODULE_DEVICE_TABLE(of, nps_enet_dt_ids); static struct platform_driver nps_enet_driver = { .probe = nps_enet_probe, -- 2.7.4