From: "Jiawen Wu" <jiawenwu@trustnetic.com>
To: "'Russell King \(Oracle\)'" <linux@armlinux.org.uk>,
"'kernel test robot'" <lkp@intel.com>
Cc: <netdev@vger.kernel.org>, <jarkko.nikula@linux.intel.com>,
<andriy.shevchenko@linux.intel.com>,
<mika.westerberg@linux.intel.com>, <jsd@semihalf.com>,
<Jose.Abreu@synopsys.com>, <andrew@lunn.ch>,
<hkallweit1@gmail.com>, <oe-kbuild-all@lists.linux.dev>,
<linux-i2c@vger.kernel.org>, <linux-gpio@vger.kernel.org>,
<mengyuanlou@net-swift.com>,
"'Piotr Raczynski'" <piotr.raczynski@intel.com>
Subject: RE: [PATCH net-next v9 5/9] net: txgbe: Add SFP module identify
Date: Tue, 30 May 2023 16:40:36 +0800 [thread overview]
Message-ID: <03ac01d992d2$67c1ec90$3745c5b0$@trustnetic.com> (raw)
In-Reply-To: <02dd01d991d2$2120fcf0$6362f6d0$@trustnetic.com>
On Monday, May 29, 2023 10:06 AM, Jiawen Wu wrote:
> On Friday, May 26, 2023 7:37 PM, Russell King (Oracle) wrote:
> > 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.
>
> So how do I make sure that the module I need compiles and loads correctly,
> rely on the user to manually select it?
When I changed the TXGBE config to:
...
depends on SFP
select PCS_XPCS
...
the compilation gave an error:
drivers/net/phy/Kconfig:16:error: recursive dependency detected!
drivers/net/phy/Kconfig:16: symbol PHYLIB is selected by PHYLINK
drivers/net/phy/Kconfig:6: symbol PHYLINK is selected by PCS_XPCS
drivers/net/pcs/Kconfig:8: symbol PCS_XPCS is selected by TXGBE
drivers/net/ethernet/wangxun/Kconfig:40: symbol TXGBE depends on SFP
drivers/net/phy/Kconfig:63: symbol SFP depends on PHYLIB
For a resolution refer to Documentation/kbuild/kconfig-language.rst
subsection "Kconfig recursive dependency limitations"
Seems deleting "depends on SFP" is the correct way. But is this normal?
How do we ensure the dependency between TXGBE and SFP?
next prev parent reply other threads:[~2023-05-30 8:41 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-24 9:17 [PATCH net-next v9 0/9] TXGBE PHYLINK support Jiawen Wu
2023-05-24 9:17 ` [PATCH net-next v9 1/9] net: txgbe: Add software nodes to support phylink Jiawen Wu
2023-05-27 8:44 ` Andy Shevchenko
2023-05-30 6:11 ` Jiawen Wu
2023-05-30 10:45 ` andy.shevchenko
2023-05-24 9:17 ` [PATCH net-next v9 2/9] i2c: designware: Add driver support for Wangxun 10Gb NIC Jiawen Wu
2023-05-27 8:36 ` Andy Shevchenko
2023-05-24 9:17 ` [PATCH net-next v9 3/9] net: txgbe: Register fixed rate clock Jiawen Wu
2023-05-24 12:17 ` Andrew Lunn
2023-05-24 9:17 ` [PATCH net-next v9 4/9] net: txgbe: Register I2C platform device Jiawen Wu
2023-05-26 9:35 ` kernel test robot
2023-05-27 8:38 ` Andy Shevchenko
2023-05-24 9:17 ` [PATCH net-next v9 5/9] net: txgbe: Add SFP module identify Jiawen Wu
2023-05-26 11:30 ` kernel test robot
2023-05-26 11:36 ` Russell King (Oracle)
2023-05-29 2:06 ` Jiawen Wu
2023-05-30 8:40 ` Jiawen Wu [this message]
2023-05-31 9:19 ` Jiawen Wu
2023-05-31 9:47 ` Russell King (Oracle)
2023-05-31 10:11 ` Jiawen Wu
2023-05-24 9:17 ` [PATCH net-next v9 6/9] net: txgbe: Support GPIO to SFP socket Jiawen Wu
2023-05-24 12:51 ` Andrew Lunn
2023-05-24 13:07 ` Russell King (Oracle)
2023-05-24 9:17 ` [PATCH net-next v9 7/9] net: pcs: Add 10GBASE-R mode for Synopsys Designware XPCS Jiawen Wu
2023-05-24 9:17 ` [PATCH net-next v9 8/9] net: txgbe: Implement phylink pcs Jiawen Wu
2023-05-24 12:53 ` Andrew Lunn
2023-05-26 4:14 ` Jakub Kicinski
2023-05-26 6:21 ` Jiawen Wu
2023-05-26 8:43 ` Russell King (Oracle)
2023-05-26 9:01 ` Jiawen Wu
2023-05-26 9:07 ` Russell King (Oracle)
2023-05-26 9:22 ` Jiawen Wu
2023-05-26 9:37 ` Russell King (Oracle)
2023-05-26 10:42 ` Russell King (Oracle)
2023-05-29 1:57 ` Jiawen Wu
2023-05-24 9:17 ` [PATCH net-next v9 9/9] net: txgbe: Support phylink MAC layer Jiawen Wu
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