Subject: Re: [PATCH net-next v4 3/5] net: phy: Kconfig: Add ptp library support and 1588 optional flag in Microchip phys

From: Jakub Kicinski <[email-masked]>
Date: Fri, 15 Nov 2024 16:36:31 -0800

On Thu, 14 Nov 2024 17:34:53 +0530 Divya Koppera wrote:
>  config MICROCHIP_T1_PHY
>  	tristate "Microchip T1 PHYs"
> +	select MICROCHIP_PHYPTP if NETWORK_PHY_TIMESTAMPING
> +	depends on PTP_1588_CLOCK_OPTIONAL

I presume the dependency is because select doesn't obey
dependencies, but you only select PHYPTP if NETWORK_PHY_TIMESTAMPING.
Maybe it's possible to create a intermediate meta-symbol which is
NETWORK_PHY_TIMESTAMPING && PTP_1588_CLOCK_OPTIONAL
and use that in the select.. if ... clause?

> +	help
> +	  Supports the LAN8XXX PHYs.
> +
> +config MICROCHIP_PHYPTP
> +        tristate "Microchip PHY PTP"
>  	help

nit: tabs vs spaces

> -	  Supports the LAN87XX PHYs.
> +	  Currently supports LAN887X T1 PHY

This Kconfig is likely unsafe.
You have to make sure PHYPTP is not a module when T1_PHY is built in.
-- 
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