diff --git a/drivers/net/mdio/acpi_mdio.c b/drivers/net/mdio/acpi_mdio.c
index 4630dde019749..5d0f11f280cfc 100644
--- a/drivers/net/mdio/acpi_mdio.c
+++ b/drivers/net/mdio/acpi_mdio.c
@@ -16,6 +16,7 @@
 
 MODULE_AUTHOR("Calvin Johnson <calvin.johnson@oss.nxp.com>");
 MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("ACPI MDIO bus (Ethernet PHY) accessors");
 
 /**
  * __acpi_mdiobus_register - Register mii_bus and create PHYs from the ACPI ASL.
diff --git a/drivers/net/mdio/fwnode_mdio.c b/drivers/net/mdio/fwnode_mdio.c
index 1183ef5e203e3..fd02f5cbc853a 100644
--- a/drivers/net/mdio/fwnode_mdio.c
+++ b/drivers/net/mdio/fwnode_mdio.c
@@ -14,6 +14,7 @@
 
 MODULE_AUTHOR("Calvin Johnson <calvin.johnson@oss.nxp.com>");
 MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("FWNODE MDIO bus (Ethernet PHY) accessors");
 
 static struct pse_control *
 fwnode_find_pse_control(struct fwnode_handle *fwnode)
diff --git a/drivers/net/mdio/mdio-aspeed.c b/drivers/net/mdio/mdio-aspeed.c
index 70edeeb7771e8..c2170650415cd 100644
--- a/drivers/net/mdio/mdio-aspeed.c
+++ b/drivers/net/mdio/mdio-aspeed.c
@@ -205,3 +205,4 @@ module_platform_driver(aspeed_mdio_driver);
 
 MODULE_AUTHOR("Andrew Jeffery <andrew@aj.id.au>");
 MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("ASPEED MDIO bus controller");
diff --git a/drivers/net/mdio/mdio-bitbang.c b/drivers/net/mdio/mdio-bitbang.c
index 81b7748c10ce0..f88639297ff2d 100644
--- a/drivers/net/mdio/mdio-bitbang.c
+++ b/drivers/net/mdio/mdio-bitbang.c
@@ -263,3 +263,4 @@ void free_mdio_bitbang(struct mii_bus *bus)
 EXPORT_SYMBOL(free_mdio_bitbang);
 
 MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("Bitbanged MDIO buses");
diff --git a/drivers/net/mdio/of_mdio.c b/drivers/net/mdio/of_mdio.c
index 7eb32ebb846d8..64ebcb6d235cc 100644
--- a/drivers/net/mdio/of_mdio.c
+++ b/drivers/net/mdio/of_mdio.c
@@ -25,6 +25,7 @@
 
 MODULE_AUTHOR("Grant Likely <grant.likely@secretlab.ca>");
 MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("OpenFirmware MDIO bus (Ethernet PHY) accessors");
 
 /* Extract the clause 22 phy ID from the compatible string of the form
  * ethernet-phy-idAAAA.BBBB */