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From: Florian Fainelli <f.fainelli@gmail.com>
To: netdev@vger.kernel.org
Cc: Florian Fainelli <f.fainelli@gmail.com>,
	Andrew Lunn <andrew@lunn.ch>,
	Heiner Kallweit <hkallweit1@gmail.com>,
	Russell King <linux@armlinux.org.uk>,
	"David S. Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>,
	Michal Kubecek <mkubecek@suse.cz>,
	linux-kernel@vger.kernel.org (open list)
Subject: [PATCH net-next v2 3/3] net: ethtool: Remove PHYLIB direct dependency
Date: Sun,  5 Jul 2020 21:27:58 -0700	[thread overview]
Message-ID: <20200706042758.168819-4-f.fainelli@gmail.com> (raw)
In-Reply-To: <20200706042758.168819-1-f.fainelli@gmail.com>

Now that we have introduced ethtool_phy_ops and the PHY library
dynamically registers its operations with that function pointer, we can
remove the direct PHYLIB dependency in favor of using dynamic
operations.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
 net/Kconfig             |  1 -
 net/ethtool/cabletest.c | 18 ++++++++++++++++--
 2 files changed, 16 insertions(+), 3 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 7194956aa09e..4f9fbdf7610c 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 ethtool_phy_ops *ops;
 	struct net_device *dev;
 	int ret;
 
@@ -81,11 +82,17 @@ int ethnl_act_cable_test(struct sk_buff *skb, struct genl_info *info)
 	}
 
 	rtnl_lock();
+	ops = ethtool_phy_ops;
+	if (!ops || !ops->start_cable_test) {
+		ret = -EOPNOTSUPP;
+		goto out_rtnl;
+	}
+
 	ret = ethnl_ops_begin(dev);
 	if (ret < 0)
 		goto out_rtnl;
 
-	ret = phy_start_cable_test(dev->phydev, info->extack);
+	ret = ops->start_cable_test(dev->phydev, info->extack);
 
 	ethnl_ops_complete(dev);
 
@@ -308,6 +315,7 @@ 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 ethtool_phy_ops *ops;
 	struct phy_tdr_config cfg;
 	struct net_device *dev;
 	int ret;
@@ -337,11 +345,17 @@ int ethnl_act_cable_test_tdr(struct sk_buff *skb, struct genl_info *info)
 		goto out_dev_put;
 
 	rtnl_lock();
+	ops = ethtool_phy_ops;
+	if (!ops || !ops->start_cable_test_tdr) {
+		ret = -EOPNOTSUPP;
+		goto out_rtnl;
+	}
+
 	ret = ethnl_ops_begin(dev);
 	if (ret < 0)
 		goto out_rtnl;
 
-	ret = phy_start_cable_test_tdr(dev->phydev, info->extack, &cfg);
+	ret = ops->start_cable_test_tdr(dev->phydev, info->extack, &cfg);
 
 	ethnl_ops_complete(dev);
 
-- 
2.25.1


  parent reply	other threads:[~2020-07-06  4:28 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-06  4:27 [PATCH net-next v2 0/3] net: ethtool: Untangle PHYLIB dependency Florian Fainelli
2020-07-06  4:27 ` [PATCH net-next v2 1/3] net: ethtool: Introduce ethtool_phy_ops Florian Fainelli
2020-07-06  4:27 ` [PATCH net-next v2 2/3] net: phy: Register ethtool PHY operations Florian Fainelli
2020-07-06  4:27 ` Florian Fainelli [this message]
2020-07-06 18:40   ` [PATCH net-next v2 3/3] net: ethtool: Remove PHYLIB direct dependency Jakub Kicinski
2020-07-06 18:45     ` Florian Fainelli
2020-07-06 18:54       ` Jakub Kicinski
2020-07-06 19:56     ` Andrew Lunn
2020-07-07 12:52       ` Michal Kubecek
2020-07-06 13:46 ` [PATCH net-next v2 0/3] net: ethtool: Untangle PHYLIB dependency Andrew Lunn
2020-07-07 22:41 ` David Miller

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