# Re: \[PATCH net 1/4\] net: dsa: mv88e6xxx: Remove bogus Kconfig dependency.

- From: Brandon Streiff \<hidden\>
- Date: 2021-01-21 20:20:30 
- List: linux-arm-kernel
- Page: https://ratatoskr.run/linux-arm-kernel/2021/01/6243412
- Thread: https://ratatoskr.run/netdev/2021/01/6242127/t.md

```text
On 1/20/2021 10:06 PM, Richard Cochran wrote:
> The mv88e6xxx is a DSA driver, and it implements DSA style time
> stamping of PTP frames.  It has no need of the expensive option to
> enable PHY time stamping.  Remove the bogus dependency.
>
> Signed-off-by: Richard Cochran <richardcochran@gmail.com>
> Fixes: 2fa8d3af4bad ("net: dsa: mv88e6xxx: expose switch time as a PTP hardware clock")
Ah, I must have thought I needed skb_defer_rx_timestamp in mv88e6xxx,
but instead DSA gained its own timestamp path so mv88e6xxx turned out
to not need that at all, and I never went back and dropped the Kconfig
dependency. Whoops. Yup, I don't think we don't need it here.

Acked-by: Brandon Streiff <redacted>

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