linux-kernel - [PATCH net-next 4/4] net: ethtool: Remove PHYLIB dependency

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Date:   Wed,  1 Jul 2020 21:29:42 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     netdev@...r.kernel.org
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Michal Kubecek <mkubecek@...e.cz>,
        linux-kernel@...r.kernel.org (open list)
Subject: [PATCH net-next 4/4] net: ethtool: Remove PHYLIB dependency

Now that we have converted the ethtool/cabletest code to use netdev_ops,
we can remove the PHY library dependency since the function pointers
will now be provided upon PHY attachment to the network device.

Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
---
 net/Kconfig             |  1 -
 net/ethtool/cabletest.c | 12 ++++++++----
 2 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/net/Kconfig b/net/Kconfig
index d1672280d6a4..3831206977a1 100644
--- a/net/Kconfig
+++ b/net/Kconfig
@@ -455,7 +455,6 @@ config FAILOVER
 config ETHTOOL_NETLINK
 	bool "Netlink interface for ethtool"
 	default y
-	depends on PHYLIB=y || PHYLIB=n
 	help
 	  An alternative userspace interface for ethtool based on generic
 	  netlink. It provides better extensibility and some new features,
diff --git a/net/ethtool/cabletest.c b/net/ethtool/cabletest.c
index 0d940a91493b..d8e2eb427613 100644
--- a/net/ethtool/cabletest.c
+++ b/net/ethtool/cabletest.c
@@ -58,6 +58,7 @@ int ethnl_act_cable_test(struct sk_buff *skb, struct genl_info *info)
 {
 	struct nlattr *tb[ETHTOOL_A_CABLE_TEST_MAX + 1];
 	struct ethnl_req_info req_info = {};
+	const struct net_device_ops *ops;
 	struct net_device *dev;
 	int ret;
 
@@ -75,7 +76,8 @@ int ethnl_act_cable_test(struct sk_buff *skb, struct genl_info *info)
 		return ret;
 
 	dev = req_info.dev;
-	if (!dev->phydev) {
+	ops = dev->netdev_ops;
+	if (!ops->ndo_cable_test_start) {
 		ret = -EOPNOTSUPP;
 		goto out_dev_put;
 	}
@@ -85,7 +87,7 @@ int ethnl_act_cable_test(struct sk_buff *skb, struct genl_info *info)
 	if (ret < 0)
 		goto out_rtnl;
 
-	ret = phy_start_cable_test(dev, info->extack);
+	ret = ops->ndo_cable_test_start(dev, info->extack);
 
 	ethnl_ops_complete(dev);
 
@@ -308,6 +310,7 @@ int ethnl_act_cable_test_tdr(struct sk_buff *skb, struct genl_info *info)
 {
 	struct nlattr *tb[ETHTOOL_A_CABLE_TEST_TDR_MAX + 1];
 	struct ethnl_req_info req_info = {};
+	const struct net_device_ops *ops;
 	struct phy_tdr_config cfg;
 	struct net_device *dev;
 	int ret;
@@ -326,7 +329,8 @@ int ethnl_act_cable_test_tdr(struct sk_buff *skb, struct genl_info *info)
 		return ret;
 
 	dev = req_info.dev;
-	if (!dev->phydev) {
+	ops = dev->netdev_ops;
+	if (!ops->ndo_cable_test_tdr_start) {
 		ret = -EOPNOTSUPP;
 		goto out_dev_put;
 	}
@@ -341,7 +345,7 @@ int ethnl_act_cable_test_tdr(struct sk_buff *skb, struct genl_info *info)
 	if (ret < 0)
 		goto out_rtnl;
 
-	ret = phy_start_cable_test_tdr(dev, info->extack, &cfg);
+	ret = ops->ndo_cable_test_tdr_start(dev, info->extack, &cfg);
 
 	ethnl_ops_complete(dev);
 
-- 
2.25.1