From: Richard Cochran <richardcochran@gmail.com>
Date: Wed, 25 Dec 2019 18:16:12 -0800
Subject: net: ethtool: Use the PHY time stamping interface.
Patch-mainline: v5.6-rc1
Git-commit: 7774ee23689d3c56ecb5eff6cd1bf6060bdd3d8e
References: bsc#1176447

The ethtool layer tests fields of the phy_device in order to determine
whether to invoke the PHY's tsinfo ethtool callback.  This patch
replaces the open coded logic with an invocation of the proper
methods.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 net/ethtool/ioctl.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/net/ethtool/ioctl.c
+++ b/net/ethtool/ioctl.c
@@ -2096,8 +2096,8 @@ static int ethtool_get_ts_info(struct ne
 	memset(&info, 0, sizeof(info));
 	info.cmd = ETHTOOL_GET_TS_INFO;
 
-	if (phydev && phydev->drv && phydev->drv->ts_info) {
-		err = phydev->drv->ts_info(phydev, &info);
+	if (phy_has_tsinfo(phydev)) {
+		err = phy_ts_info(phydev, &info);
 	} else if (ops->get_ts_info) {
 		err = ops->get_ts_info(dev, &info);
 	} else {