[PATCH net-next] net: wangxun: fix VF drivers Kconfig dependencies and help text

[PATCH net-next] net: wangxun: fix VF drivers Kconfig dependencies and help text

[Randy Dunlap]

On x86_64, when CONFIG_PTP_1588_CLOCK_OPTIONAL=m,
CONFIG_LIBWX can be set to 'y' by either of TXGBEVF=y or NGBEVF=y,
causing kconfig unmet direct dependencies warning messages:

WARNING: unmet direct dependencies detected for LIBWX
  Depends on [m]: NETDEVICES [=y] && ETHERNET [=y] && NET_VENDOR_WANGXUN [=y] && PTP_1588_CLOCK_OPTIONAL [=m]
  Selected by [y]:
  - TXGBEVF [=y] && NETDEVICES [=y] && ETHERNET [=y] && NET_VENDOR_WANGXUN [=y] && PCI [=y] && PCI_MSI [=y]
  - NGBEVF [=y] && NETDEVICES [=y] && ETHERNET [=y] && NET_VENDOR_WANGXUN [=y] && PCI_MSI [=y]

and subsequent build errors:

ld: vmlinux.o: in function `wx_clean_tx_irq':
drivers/net/ethernet/wangxun/libwx/wx_lib.c:757:(.text+0xa48f18): undefined reference to `ptp_schedule_worker'
ld: vmlinux.o: in function `wx_get_ts_info':
drivers/net/ethernet/wangxun/libwx/wx_ethtool.c:509:(.text+0xa4a58c): undefined reference to `ptp_clock_index'
ld: vmlinux.o: in function `wx_ptp_stop':
drivers/net/ethernet/wangxun/libwx/wx_ptp.c:838:(.text+0xa4b3dc): undefined reference to `ptp_clock_unregister'
ld: vmlinux.o: in function `wx_ptp_reset':
drivers/net/ethernet/wangxun/libwx/wx_ptp.c:769:(.text+0xa4b80c): undefined reference to `ptp_schedule_worker'
ld: vmlinux.o: in function `wx_ptp_create_clock':
drivers/net/ethernet/wangxun/libwx/wx_ptp.c:532:(.text+0xa4b9d1): undefined reference to `ptp_clock_register'

Add dependency to PTP_1588_CLOCK_OPTIONAL for both txgbevf and ngbevf.
This is needed since both of them select LIBWX and it depends on
PTP_1588_CLOCK_OPTIONAL.

Drop "depends on PCI" for TXGBEVF since PCI_MSI implies that.

Move the driver name help text to the module name help text for
both drivers.

Fixes: 377d180bd71c ("net: wangxun: add txgbevf build")
Fixes: a0008a3658a3 ("net: wangxun: add ngbevf build")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jiawen Wu <jiawenwu@trustnetic.com>
Cc: Mengyuan Lou <mengyuanlou@net-swift.com>
Cc: netdev@vger.kernel.org
Cc: Andrew Lunn <andrew+netdev@lunn.ch>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
---
 drivers/net/ethernet/wangxun/Kconfig |   17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

--- linux-next-20250710.orig/drivers/net/ethernet/wangxun/Kconfig
+++ linux-next-20250710/drivers/net/ethernet/wangxun/Kconfig
@@ -66,35 +66,34 @@ config TXGBE
 
 config TXGBEVF
 	tristate "Wangxun(R) 10/25/40G Virtual Function Ethernet support"
-	depends on PCI
 	depends on PCI_MSI
+	depends on PTP_1588_CLOCK_OPTIONAL
 	select LIBWX
 	select PHYLINK
 	help
 	  This driver supports virtual functions for SP1000A, WX1820AL,
 	  WX5XXX, WX5XXXAL.
 
-	  This driver was formerly named txgbevf.
-
 	  More specific information on configuring the driver is in
 	  <file:Documentation/networking/device_drivers/ethernet/wangxun/txgbevf.rst>.
 
-	  To compile this driver as a module, choose M here. MSI-X interrupt
-	  support is required for this driver to work correctly.
+	  To compile this driver as a module, choose M here. The module
+	  will be called txgbevf. MSI-X interrupt support is required
+	  for this driver to work correctly.
 
 config NGBEVF
 	tristate "Wangxun(R) GbE Virtual Function Ethernet support"
 	depends on PCI_MSI
+	depends on PTP_1588_CLOCK_OPTIONAL
 	select LIBWX
 	help
 	  This driver supports virtual functions for WX1860, WX1860AL.
 
-	  This driver was formerly named ngbevf.
-
 	  More specific information on configuring the driver is in
 	  <file:Documentation/networking/device_drivers/ethernet/wangxun/ngbevf.rst>.
 
-	  To compile this driver as a module, choose M here. MSI-X interrupt
-	  support is required for this driver to work correctly.
+	  To compile this driver as a module, choose M here. The module
+	  will be called ngbefv. MSI-X interrupt support is required for
+	  this driver to work correctly.
 
 endif # NET_VENDOR_WANGXUN

RE: [PATCH net-next] net: wangxun: fix VF drivers Kconfig dependencies and help text

[Jiawen Wu]

> --- linux-next-20250710.orig/drivers/net/ethernet/wangxun/Kconfig
> +++ linux-next-20250710/drivers/net/ethernet/wangxun/Kconfig
> @@ -66,35 +66,34 @@ config TXGBE
> 
>  config TXGBEVF
>  	tristate "Wangxun(R) 10/25/40G Virtual Function Ethernet support"
> -	depends on PCI
>  	depends on PCI_MSI
> +	depends on PTP_1588_CLOCK_OPTIONAL
>  	select LIBWX
>  	select PHYLINK

I think "PHYLINK" can be removed together, since the driver doesn't use it.
 

Re: [PATCH net-next] net: wangxun: fix VF drivers Kconfig dependencies and help text

[Randy Dunlap]

On 7/11/25 1:47 AM, Jiawen Wu wrote:
>> --- linux-next-20250710.orig/drivers/net/ethernet/wangxun/Kconfig
>> +++ linux-next-20250710/drivers/net/ethernet/wangxun/Kconfig
>> @@ -66,35 +66,34 @@ config TXGBE
>>
>>  config TXGBEVF
>>  	tristate "Wangxun(R) 10/25/40G Virtual Function Ethernet support"
>> -	depends on PCI
>>  	depends on PCI_MSI
>> +	depends on PTP_1588_CLOCK_OPTIONAL
>>  	select LIBWX
>>  	select PHYLINK
> 
> I think "PHYLINK" can be removed together, since the driver doesn't use it.
>  
> 

OK, I'll do that also.
Thanks.

-- 
~Randy