On Tue, Jun 13, 2017 at 10:56:08AM -0400, Jon Mason wrote:
> 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.
This patch fixes the modules_install issue I was seeing with module
dependency cycle.
You can add my:
Tested-by: Liviu Dudau <liviu@xxxxxxxxxxx>
Thanks,
Liviu
>
> Reported-by: Liviu Dudau <liviu@xxxxxxxxxxx>
> Signed-off-by: Jon Mason <jon.mason@xxxxxxxxxxxx>
> Fixes: 342fa1964439 ("mdio: mux: make child bus walking more permissive and errors more verbose")
> ---
> drivers/of/of_mdio.c | 22 ----------------------
> include/linux/of_mdio.h | 24 +++++++++++++++++++++++-
> 2 files changed, 23 insertions(+), 23 deletions(-)
>
> diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c
> index 7e4c80f9b6cd..057963f2b74f 100644
> --- 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 ba35ba520487..f5db93bcd069 100644
> --- 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)
> {
> --
> 2.7.4
>
--
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