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Date:   Wed, 01 Jul 2020 16:00:14 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     kuba@...nel.org
Cc:     andrew@...n.ch, netdev@...r.kernel.org, f.fainelli@...il.com,
        hkallweit1@...il.com, cphealy@...il.com, mkubecek@...e.cz
Subject: Re: [PATCH net-next v4 03/10] net: ethtool: netlink: Add support
 for triggering a cable test

From: Jakub Kicinski <kuba@...nel.org>
Date: Wed, 1 Jul 2020 15:56:21 -0700

> On Sun, 10 May 2020 21:12:33 +0200 Andrew Lunn wrote:
>> diff --git a/net/Kconfig b/net/Kconfig
>> index c5ba2d180c43..5c524c6ee75d 100644
>> --- a/net/Kconfig
>> +++ b/net/Kconfig
>> @@ -455,6 +455,7 @@ config FAILOVER
>>  config ETHTOOL_NETLINK
>>  	bool "Netlink interface for ethtool"
>>  	default y
>> +	depends on PHYLIB=y || PHYLIB=n
>>  	help
>>  	  An alternative userspace interface for ethtool based on generic
>>  	  netlink. It provides better extensibility and some new features,
> 
> Since ETHTOOL_NETLINK is a bool we end up not enabling it on
> allmodconfig builds, (PHYLIB=m so ETHTOOL_NETLINK dependency 
> can't be met) - which is v scary for build testing.
> 
> Is there a way we can change this dependency? Some REACHABLE shenanigans?
> 
> Or since there are just two callbacks maybe phylib can "tell" ethtool
> core the pointers to call when it loads?

This has been discussed a few times and it's very irritating to me as well
as allmodconfig is the standard test build I do for all new changes.

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