linux-kernel - [PATCH] net: ethernet: adi: requires PHYLIB support

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Date: Wed, 14 Feb 2024 23:00:50 -0800
From: Randy Dunlap <rdunlap@...radead.org>
To: linux-kernel@...r.kernel.org
Cc: Randy Dunlap <rdunlap@...radead.org>,
	kernel test robot <lkp@...el.com>,
	Lennart Franzen <lennart@...omain.com>,
	Alexandru Tachici <alexandru.tachici@...log.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	netdev@...r.kernel.org
Subject: [PATCH] net: ethernet: adi: requires PHYLIB support

This driver uses functions that are supplied by the Kconfig symbol
PHYLIB, so select it to ensure that they are built as needed.

When CONFIG_ADIN1110=y and CONFIG_PHYLIB=m, there are multiple build
(linker) errors that are resolved by this Kconfig change:

   ld: drivers/net/ethernet/adi/adin1110.o: in function `adin1110_net_open':
   drivers/net/ethernet/adi/adin1110.c:933: undefined reference to `phy_start'
   ld: drivers/net/ethernet/adi/adin1110.o: in function `adin1110_probe_netdevs':
   drivers/net/ethernet/adi/adin1110.c:1603: undefined reference to `get_phy_device'
   ld: drivers/net/ethernet/adi/adin1110.c:1609: undefined reference to `phy_connect'
   ld: drivers/net/ethernet/adi/adin1110.o: in function `adin1110_disconnect_phy':
   drivers/net/ethernet/adi/adin1110.c:1226: undefined reference to `phy_disconnect'
   ld: drivers/net/ethernet/adi/adin1110.o: in function `devm_mdiobus_alloc':
   include/linux/phy.h:455: undefined reference to `devm_mdiobus_alloc_size'
   ld: drivers/net/ethernet/adi/adin1110.o: in function `adin1110_register_mdiobus':
   drivers/net/ethernet/adi/adin1110.c:529: undefined reference to `__devm_mdiobus_register'
   ld: drivers/net/ethernet/adi/adin1110.o: in function `adin1110_net_stop':
   drivers/net/ethernet/adi/adin1110.c:958: undefined reference to `phy_stop'
   ld: drivers/net/ethernet/adi/adin1110.o: in function `adin1110_disconnect_phy':
   drivers/net/ethernet/adi/adin1110.c:1226: undefined reference to `phy_disconnect'
   ld: drivers/net/ethernet/adi/adin1110.o: in function `adin1110_adjust_link':
   drivers/net/ethernet/adi/adin1110.c:1077: undefined reference to `phy_print_status'
   ld: drivers/net/ethernet/adi/adin1110.o: in function `adin1110_ioctl':
   drivers/net/ethernet/adi/adin1110.c:790: undefined reference to `phy_do_ioctl'
   ld: drivers/net/ethernet/adi/adin1110.o:(.rodata+0xf60): undefined reference to `phy_ethtool_get_link_ksettings'
   ld: drivers/net/ethernet/adi/adin1110.o:(.rodata+0xf68): undefined reference to `phy_ethtool_set_link_ksettings'

Fixes: bc93e19d088b ("net: ethernet: adi: Add ADIN1110 support")
Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
Reported-by: kernel test robot <lkp@...el.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202402070626.eZsfVHG5-lkp@intel.com/
Cc: Lennart Franzen <lennart@...omain.com>
Cc: Alexandru Tachici <alexandru.tachici@...log.com>
Cc: "David S. Miller" <davem@...emloft.net>
Cc: Eric Dumazet <edumazet@...gle.com>
Cc: Jakub Kicinski <kuba@...nel.org>
Cc: Paolo Abeni <pabeni@...hat.com>
Cc: netdev@...r.kernel.org
---
 drivers/net/ethernet/adi/Kconfig |    1 +
 1 file changed, 1 insertion(+)

diff -- a/drivers/net/ethernet/adi/Kconfig b/drivers/net/ethernet/adi/Kconfig
--- a/drivers/net/ethernet/adi/Kconfig
+++ b/drivers/net/ethernet/adi/Kconfig
@@ -7,6 +7,7 @@ config NET_VENDOR_ADI
 	bool "Analog Devices devices"
 	default y
 	depends on SPI
+	select PHYLIB
 	help
 	  If you have a network (Ethernet) card belonging to this class, say Y.