linux-kernel - [PATCH -next] net: pcs: pcs-xpcs: Fix build error when CONFIG_PCS_XPCS=y && CONFIG

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Date:   Tue, 21 Jun 2022 21:12:51 +0800
From:   Zheng Bin <zhengbin13@...wei.com>
To:     <andrew@...n.ch>, <hkallweit1@...il.com>, <linux@...linux.org.uk>,
        <davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
        <pabeni@...hat.com>, <boon.leong.ong@...el.com>,
        <rmk+kernel@...linux.org.uk>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
CC:     <zhengbin13@...wei.com>, <gaochao49@...wei.com>
Subject: [PATCH -next] net: pcs: pcs-xpcs: Fix build error when CONFIG_PCS_XPCS=y && CONFIG_PHYLINK=m

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@...wei.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