# Re: \[PATCH net-next 1/3\] net: mdio: add support for passing a PTP system timestamp to the mii\_bus driver

- From: Richard Cochran \<richardcochran@gmail.com\>
- Date: 2019-08-17 03:31:07 
- List: netdev
- Page: https://ratatoskr.run/netdev/2019/08/5690695
- Thread: https://ratatoskr.run/netdev/2019/08/5690341/t.md

```text
On Fri, Aug 16, 2019 at 06:31:55PM +0200, Hubert Feurstein wrote:
>  
>  int __mdiobus_read(struct mii_bus *bus, int addr, u32 regnum);
>  int __mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val);
> +int __mdiobus_write_sts(struct mii_bus *bus, int addr, u32 regnum, u16 val,
> +			struct ptp_system_timestamp *sts);
>  
>  int mdiobus_read(struct mii_bus *bus, int addr, u32 regnum);
>  int mdiobus_read_nested(struct mii_bus *bus, int addr, u32 regnum);
>  int mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val);
>  int mdiobus_write_nested(struct mii_bus *bus, int addr, u32 regnum, u16 val);
> +int mdiobus_write_sts(struct mii_bus *bus, int addr, u32 regnum, u16 val,
> +		      struct ptp_system_timestamp *sts);
> +int mdiobus_write_sts_nested(struct mii_bus *bus, int addr, u32 regnum, u16 val,
> +			     struct ptp_system_timestamp *sts);

Following the pattern, you have made three new global
mdiobus_write_sts() functions.  However, your patch set only uses
mdiobus_write_sts_nested().

Please don't add global functions with no users.  Let the first user
add them, if and when the need arises.

Thanks,
Richard
```