netdev - [PATCH] net: micrel: fix KS8851

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Date:   Thu, 31 Mar 2022 22:42:44 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     netdev@...r.kernel.org
Cc:     patches@...ts.linux.dev, Randy Dunlap <rdunlap@...radead.org>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>
Subject: [PATCH] net: micrel: fix KS8851_MLL Kconfig

KS8851_MLL selects MICREL_PHY, which depends on PTP_1588_CLOCK_OPTIONAL,
so make KS8851_MLL also depend on PTP_1588_CLOCK_OPTIONAL since
'select' does not follow any dependency chains.

Fixes kconfig warning and build errors:

WARNING: unmet direct dependencies detected for MICREL_PHY
  Depends on [m]: NETDEVICES [=y] && PHYLIB [=y] && PTP_1588_CLOCK_OPTIONAL [=m]
  Selected by [y]:
  - KS8851_MLL [=y] && NETDEVICES [=y] && ETHERNET [=y] && NET_VENDOR_MICREL [=y] && HAS_IOMEM [=y]

ld: drivers/net/phy/micrel.o: in function `lan8814_ts_info':
micrel.c:(.text+0xb35): undefined reference to `ptp_clock_index'
ld: drivers/net/phy/micrel.o: in function `lan8814_probe':
micrel.c:(.text+0x2586): undefined reference to `ptp_clock_register'

Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
Cc: "David S. Miller" <davem@...emloft.net>
Cc: Jakub Kicinski <kuba@...nel.org>
Cc: Paolo Abeni <pabeni@...hat.com>
---
 drivers/net/ethernet/micrel/Kconfig |    1 +
 1 file changed, 1 insertion(+)

--- mmotm-2022-0331-2037.orig/drivers/net/ethernet/micrel/Kconfig
+++ mmotm-2022-0331-2037/drivers/net/ethernet/micrel/Kconfig
@@ -39,6 +39,7 @@ config KS8851
 config KS8851_MLL
 	tristate "Micrel KS8851 MLL"
 	depends on HAS_IOMEM
+	depends on PTP_1588_CLOCK_OPTIONAL
 	select MII
 	select CRC32
 	select EEPROM_93CX6