[PATCH net-next v6 6/7] net: selftests: Export net_test_phy_loopback_*

[Gerhard Engleder <gerhard@engleder-embedded.com>]

net_selftests() provides a generic set of selftests for netdevs with
PHY. Those selftests rely on an existing link to inherit the speed for
the loopback mode.

net_selftests() is not designed to extend existing selftests of drivers,
but with net_test_phy_loopback_* it contains useful test infrastructure.

Export net_test_phy_loopback_* to enable reuse in existing selftests of
other drivers. This also enables driver specific loopback modes, which
don't rely on an existing link.

Signed-off-by: Gerhard Engleder <gerhard@engleder-embedded.com>
CC: Oleksij Rempel <o.rempel@pengutronix.de>
---
 include/net/selftests.h | 19 +++++++++++++++++++
 net/core/selftests.c    |  9 ++++++---
 2 files changed, 25 insertions(+), 3 deletions(-)

diff --git a/include/net/selftests.h b/include/net/selftests.h
index e65e8d230d33..a13237c33e58 100644
--- a/include/net/selftests.h
+++ b/include/net/selftests.h
@@ -6,6 +6,10 @@
 
 #if IS_ENABLED(CONFIG_NET_SELFTESTS)
 
+int net_test_phy_loopback_udp(struct net_device *ndev);
+int net_test_phy_loopback_udp_mtu(struct net_device *ndev);
+int net_test_phy_loopback_tcp(struct net_device *ndev);
+
 void net_selftest(struct net_device *ndev, struct ethtool_test *etest,
 		  u64 *buf);
 int net_selftest_get_count(void);
@@ -13,6 +17,21 @@ void net_selftest_get_strings(u8 *data);
 
 #else
 
+static inline int net_test_phy_loopback_udp(struct net_device *ndev)
+{
+	return 0;
+}
+
+static inline int net_test_phy_loopback_udp_mtu(struct net_device *ndev)
+{
+	return 0;
+}
+
+static inline int net_test_phy_loopback_tcp(struct net_device *ndev)
+{
+	return 0;
+}
+
 static inline void net_selftest(struct net_device *ndev, struct ethtool_test *etest,
 				u64 *buf)
 {
diff --git a/net/core/selftests.c b/net/core/selftests.c
index e99ae983fca9..d4e0e2eff991 100644
--- a/net/core/selftests.c
+++ b/net/core/selftests.c
@@ -310,15 +310,16 @@ static int net_test_phy_loopback_disable(struct net_device *ndev)
 	return phy_loopback(ndev->phydev, false, 0);
 }
 
-static int net_test_phy_loopback_udp(struct net_device *ndev)
+int net_test_phy_loopback_udp(struct net_device *ndev)
 {
 	struct net_packet_attrs attr = { };
 
 	attr.dst = ndev->dev_addr;
 	return __net_test_loopback(ndev, &attr);
 }
+EXPORT_SYMBOL_GPL(net_test_phy_loopback_udp);
 
-static int net_test_phy_loopback_udp_mtu(struct net_device *ndev)
+int net_test_phy_loopback_udp_mtu(struct net_device *ndev)
 {
 	struct net_packet_attrs attr = { };
 
@@ -326,8 +327,9 @@ static int net_test_phy_loopback_udp_mtu(struct net_device *ndev)
 	attr.max_size = ndev->mtu;
 	return __net_test_loopback(ndev, &attr);
 }
+EXPORT_SYMBOL_GPL(net_test_phy_loopback_udp_mtu);
 
-static int net_test_phy_loopback_tcp(struct net_device *ndev)
+int net_test_phy_loopback_tcp(struct net_device *ndev)
 {
 	struct net_packet_attrs attr = { };
 
@@ -335,6 +337,7 @@ static int net_test_phy_loopback_tcp(struct net_device *ndev)
 	attr.tcp = true;
 	return __net_test_loopback(ndev, &attr);
 }
+EXPORT_SYMBOL_GPL(net_test_phy_loopback_tcp);
 
 static const struct net_test {
 	char name[ETH_GSTRING_LEN];
-- 
2.39.5