While BCMGENET select BROADCOM_PHY as y, but PTP_1588_CLOCK_OPTIONAL is m,
kconfig warning and build errors:

WARNING: unmet direct dependencies detected for BROADCOM_PHY
  Depends on [m]: NETDEVICES [=y] && PHYLIB [=y] && PTP_1588_CLOCK_OPTIONAL [=m]
  Selected by [y]:
  - BCMGENET [=y] && NETDEVICES [=y] && ETHERNET [=y] && NET_VENDOR_BROADCOM [=y] && HAS_IOMEM [=y] && ARCH_BCM2835 [=y]

drivers/net/phy/broadcom.o: In function `bcm54xx_suspend':
broadcom.c:(.text+0x6ac): undefined reference to `bcm_ptp_stop'
drivers/net/phy/broadcom.o: In function `bcm54xx_phy_probe':
broadcom.c:(.text+0x784): undefined reference to `bcm_ptp_probe'
drivers/net/phy/broadcom.o: In function `bcm54xx_config_init':
broadcom.c:(.text+0xd4c): undefined reference to `bcm_ptp_config_init'

Fixes: 99addbe31f55 ("net: broadcom: Select BROADCOM_PHY for BCMGENET")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
---
 drivers/net/ethernet/broadcom/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/broadcom/Kconfig b/drivers/net/ethernet/broadcom/Kconfig
index f4e1ca68d831..55dfdb34e37b 100644
--- a/drivers/net/ethernet/broadcom/Kconfig
+++ b/drivers/net/ethernet/broadcom/Kconfig
@@ -77,7 +77,7 @@ config BCMGENET
 	select BCM7XXX_PHY
 	select MDIO_BCM_UNIMAC
 	select DIMLIB
-	select BROADCOM_PHY if ARCH_BCM2835
+	select BROADCOM_PHY if (ARCH_BCM2835 && PTP_1588_CLOCK_OPTIONAL)
 	help
 	  This driver supports the built-in Ethernet MACs found in the
 	  Broadcom BCM7xxx Set Top Box family chipset.
-- 
2.17.1

Hello:

This patch was applied to netdev/net.git (master)
by Jakub Kicinski <kuba@kernel.org>:

On Sat, 5 Nov 2022 17:02:45 +0800 you wrote:
> While BCMGENET select BROADCOM_PHY as y, but PTP_1588_CLOCK_OPTIONAL is m,
> kconfig warning and build errors:
> 
> WARNING: unmet direct dependencies detected for BROADCOM_PHY
>   Depends on [m]: NETDEVICES [=y] && PHYLIB [=y] && PTP_1588_CLOCK_OPTIONAL [=m]
>   Selected by [y]:
>   - BCMGENET [=y] && NETDEVICES [=y] && ETHERNET [=y] && NET_VENDOR_BROADCOM [=y] && HAS_IOMEM [=y] && ARCH_BCM2835 [=y]
> 
> [...]

Here is the summary with links:
  - net: broadcom: Fix BCMGENET Kconfig
    https://git.kernel.org/netdev/net/c/8d820bc9d12b

You are awesome, thank you!
-- 
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html

On 11/5/22 02:02, YueHaibing wrote:
> While BCMGENET select BROADCOM_PHY as y, but PTP_1588_CLOCK_OPTIONAL is m,
> kconfig warning and build errors:
> 
> WARNING: unmet direct dependencies detected for BROADCOM_PHY
>    Depends on [m]: NETDEVICES [=y] && PHYLIB [=y] && PTP_1588_CLOCK_OPTIONAL [=m]
>    Selected by [y]:
>    - BCMGENET [=y] && NETDEVICES [=y] && ETHERNET [=y] && NET_VENDOR_BROADCOM [=y] && HAS_IOMEM [=y] && ARCH_BCM2835 [=y]
> 
> drivers/net/phy/broadcom.o: In function `bcm54xx_suspend':
> broadcom.c:(.text+0x6ac): undefined reference to `bcm_ptp_stop'
> drivers/net/phy/broadcom.o: In function `bcm54xx_phy_probe':
> broadcom.c:(.text+0x784): undefined reference to `bcm_ptp_probe'
> drivers/net/phy/broadcom.o: In function `bcm54xx_config_init':
> broadcom.c:(.text+0xd4c): undefined reference to `bcm_ptp_config_init'
> 
> Fixes: 99addbe31f55 ("net: broadcom: Select BROADCOM_PHY for BCMGENET")
> Signed-off-by: YueHaibing <yuehaibing@huawei.com>

Acked-by: Florian Fainelli <f.fainelli@broadcom.com>

Thanks
-- 
Florian