of_mdio: move of_mdio_parse_addr to header file

The of_mdio_parse_addr() helper function is useful to other code, but
the module dependency chain causes issues.  To work around this, we can
move of_mdio_parse_addr() to be an inline function in the header file.
This gets rid of the dependencies and still allows for the reuse of
code.

Reported-by: Liviu Dudau <liviu@dudau.co.uk>
Signed-off-by: Jon Mason <jon.mason@broadcom.com>
Fixes: 342fa1964439 ("mdio: mux: make child bus walking more permissive and errors more verbose")
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c
index 9596be9a49d0907bb376195a7cc657b1ecd087bd..e0dbd6e48a98cea6bafee3ef339ae3da563b2fcf 100644 (file)
--- a/drivers/of/of_mdio.c
+++ b/drivers/of/of_mdio.c
@@ -119,28 +119,6 @@ static void of_mdiobus_register_device(struct mii_bus *mdio,
                child->name, addr);
 }
 
-int of_mdio_parse_addr(struct device *dev, const struct device_node *np)
-{
-       u32 addr;
-       int ret;
-
-       ret = of_property_read_u32(np, "reg", &addr);
-       if (ret < 0) {
-               dev_err(dev, "%s has invalid PHY address\n", np->full_name);
-               return ret;
-       }
-
-       /* A PHY must have a reg property in the range [0-31] */
-       if (addr >= PHY_MAX_ADDR) {
-               dev_err(dev, "%s PHY address %i is too large\n",
-                       np->full_name, addr);
-               return -EINVAL;
-       }
-
-       return addr;
-}
-EXPORT_SYMBOL(of_mdio_parse_addr);
-
 /* The following is a list of PHY compatible strings which appear in
  * some DTBs. The compatible string is never matched against a PHY
  * driver, so is pointless. We only expect devices which are not PHYs

diff --git a/include/linux/of_mdio.h b/include/linux/of_mdio.h
index ba35ba5204871a69b5d5522f170432d24aa32e96..f5db93bcd069c8e8f726a8b7c18f70a373667325 100644 (file)
--- a/include/linux/of_mdio.h
+++ b/include/linux/of_mdio.h
@@ -27,11 +27,33 @@ struct phy_device *of_phy_attach(struct net_device *dev,
                                 phy_interface_t iface);
 
 extern struct mii_bus *of_mdio_find_bus(struct device_node *mdio_np);
-extern int of_mdio_parse_addr(struct device *dev, const struct device_node *np);
 extern int of_phy_register_fixed_link(struct device_node *np);
 extern void of_phy_deregister_fixed_link(struct device_node *np);
 extern bool of_phy_is_fixed_link(struct device_node *np);
 
+
+static inline int of_mdio_parse_addr(struct device *dev,
+                                    const struct device_node *np)
+{
+       u32 addr;
+       int ret;
+
+       ret = of_property_read_u32(np, "reg", &addr);
+       if (ret < 0) {
+               dev_err(dev, "%s has invalid PHY address\n", np->full_name);
+               return ret;
+       }
+
+       /* A PHY must have a reg property in the range [0-31] */
+       if (addr >= PHY_MAX_ADDR) {
+               dev_err(dev, "%s PHY address %i is too large\n",
+                       np->full_name, addr);
+               return -EINVAL;
+       }
+
+       return addr;
+}
+
 #else /* CONFIG_OF_MDIO */
 static inline int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np)
 {