[PATCH -next] net: pcs: pcs-xpcs: Fix build error when CONFIG_PCS_XPCS=y && CONFIG_PHYLINK=m

[PATCH -next] net: pcs: pcs-xpcs: Fix build error when CONFIG_PCS_XPCS=y && CONFIG_PHYLINK=m

[Zheng Bin]

If CONFIG_PCS_XPCS=y, CONFIG_PHYLINK=m, bulding fails:

drivers/net/pcs/pcs-xpcs.o: in function `xpcs_do_config':
pcs-xpcs.c:(.text+0x64f): undefined reference to `phylink_mii_c22_pcs_encode_advertisement'
drivers/net/pcs/pcs-xpcs.o: in function `xpcs_get_state':
pcs-xpcs.c:(.text+0x10f8): undefined reference to `phylink_mii_c22_pcs_decode_state

Make PCS_XPCS depends on PHYLINK to fix this.

Fixes: b47aec885bcd ("net: pcs: xpcs: add CL37 1000BASE-X AN support")
Signed-off-by: Zheng Bin <zhengbin13@huawei.com>
---
 drivers/net/pcs/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/pcs/Kconfig b/drivers/net/pcs/Kconfig
index 22ba7b0b476d..faec931b1e65 100644
--- a/drivers/net/pcs/Kconfig
+++ b/drivers/net/pcs/Kconfig
@@ -8,6 +8,7 @@ menu "PCS device drivers"
 config PCS_XPCS
 	tristate "Synopsys DesignWare XPCS controller"
 	depends on MDIO_DEVICE && MDIO_BUS
+	depends on PHYLINK
 	help
 	  This module provides helper functions for Synopsys DesignWare XPCS
 	  controllers.
--
2.31.1

Re: [PATCH -next] net: pcs: pcs-xpcs: Fix build error when CONFIG_PCS_XPCS=y && CONFIG_PHYLINK=m

[Russell King (Oracle)]

On Tue, Jun 21, 2022 at 09:12:51PM +0800, Zheng Bin wrote:
> If CONFIG_PCS_XPCS=y, CONFIG_PHYLINK=m, bulding fails:
> 
> drivers/net/pcs/pcs-xpcs.o: in function `xpcs_do_config':
> pcs-xpcs.c:(.text+0x64f): undefined reference to `phylink_mii_c22_pcs_encode_advertisement'
> drivers/net/pcs/pcs-xpcs.o: in function `xpcs_get_state':
> pcs-xpcs.c:(.text+0x10f8): undefined reference to `phylink_mii_c22_pcs_decode_state
> 
> Make PCS_XPCS depends on PHYLINK to fix this.
> 
> Fixes: b47aec885bcd ("net: pcs: xpcs: add CL37 1000BASE-X AN support")
> Signed-off-by: Zheng Bin <zhengbin13@huawei.com>

Paolo Abeni has already sent a patch, which I think is addressing a
similar issue. Please see:

https://lore.kernel.org/r/6959a6a51582e8bc2343824d0cee56f1db246e23.1655797997.git.pabeni@redhat.com

Thanks.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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Re: [PATCH -next] net: pcs: pcs-xpcs: Fix build error when CONFIG_PCS_XPCS=y && CONFIG_PHYLINK=m

[Paolo Abeni]

Hello,

On Tue, 2022-06-21 at 21:12 +0800, Zheng Bin wrote:
> If CONFIG_PCS_XPCS=y, CONFIG_PHYLINK=m, bulding fails:
> 
> drivers/net/pcs/pcs-xpcs.o: in function `xpcs_do_config':
> pcs-xpcs.c:(.text+0x64f): undefined reference to `phylink_mii_c22_pcs_encode_advertisement'
> drivers/net/pcs/pcs-xpcs.o: in function `xpcs_get_state':
> pcs-xpcs.c:(.text+0x10f8): undefined reference to `phylink_mii_c22_pcs_decode_state
> 
> Make PCS_XPCS depends on PHYLINK to fix this.
> 
> Fixes: b47aec885bcd ("net: pcs: xpcs: add CL37 1000BASE-X AN support")
> Signed-off-by: Zheng Bin <zhengbin13@huawei.com>
> ---
>  drivers/net/pcs/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/net/pcs/Kconfig b/drivers/net/pcs/Kconfig
> index 22ba7b0b476d..faec931b1e65 100644
> --- a/drivers/net/pcs/Kconfig
> +++ b/drivers/net/pcs/Kconfig
> @@ -8,6 +8,7 @@ menu "PCS device drivers"
>  config PCS_XPCS
>  	tristate "Synopsys DesignWare XPCS controller"
>  	depends on MDIO_DEVICE && MDIO_BUS
> +	depends on PHYLINK
>  	help
>  	  This module provides helper functions for Synopsys DesignWare XPCS
>  	  controllers.
> --
> 2.31.1

Thank you for the patch. There is already a similar fix pending:

https://patchwork.kernel.org/project/netdevbpf/patch/6959a6a51582e8bc2343824d0cee56f1db246e23.1655797997.git.pabeni@redhat.com/

Cheers,

Paolo