netdev - Re: [PATCH net-next v9 5/9] net: txgbe: Add SFP module identify

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Message-ID: <ZHCZ0hLKARXu3xFH@shell.armlinux.org.uk>
Date: Fri, 26 May 2023 12:36:50 +0100
From: "Russell King (Oracle)" <linux@...linux.org.uk>
To: kernel test robot <lkp@...el.com>
Cc: Jiawen Wu <jiawenwu@...stnetic.com>, netdev@...r.kernel.org,
	jarkko.nikula@...ux.intel.com, andriy.shevchenko@...ux.intel.com,
	mika.westerberg@...ux.intel.com, jsd@...ihalf.com,
	Jose.Abreu@...opsys.com, andrew@...n.ch, hkallweit1@...il.com,
	oe-kbuild-all@...ts.linux.dev, linux-i2c@...r.kernel.org,
	linux-gpio@...r.kernel.org, mengyuanlou@...-swift.com,
	Piotr Raczynski <piotr.raczynski@...el.com>
Subject: Re: [PATCH net-next v9 5/9] net: txgbe: Add SFP module identify

On Fri, May 26, 2023 at 07:30:45PM +0800, kernel test robot wrote:
> Kconfig warnings: (for reference only)
>    WARNING: unmet direct dependencies detected for I2C_DESIGNWARE_PLATFORM
>    Depends on [n]: I2C [=n] && HAS_IOMEM [=y] && (ACPI && COMMON_CLK [=y] || !ACPI)
>    Selected by [y]:
>    - TXGBE [=y] && NETDEVICES [=y] && ETHERNET [=y] && NET_VENDOR_WANGXUN [=y] && PCI [=y]
>    WARNING: unmet direct dependencies detected for SFP
>    Depends on [n]: NETDEVICES [=y] && PHYLIB [=y] && I2C [=n] && PHYLINK [=y] && (HWMON [=n] || HWMON [=n]=n)
>    Selected by [y]:
>    - TXGBE [=y] && NETDEVICES [=y] && ETHERNET [=y] && NET_VENDOR_WANGXUN [=y] && PCI [=y]

... and is basically caused by "select SFP". No. Do not do this unless
you look at the dependencies for SFP and ensure that those are also
satisfied - because if you don't you create messes like the above
build errors.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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