netdev - [PATCH AUTOSEL 6.6 019/104] net: phy: micrel: fix ts

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Date: Tue, 16 Jan 2024 14:45:45 -0500
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Kory Maincent <kory.maincent@...tlin.com>,
	"David S . Miller" <davem@...emloft.net>,
	Sasha Levin <sashal@...nel.org>,
	andrew@...n.ch,
	hkallweit1@...il.com,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	netdev@...r.kernel.org
Subject: [PATCH AUTOSEL 6.6 019/104] net: phy: micrel: fix ts_info value in case of no phc

From: Kory Maincent <kory.maincent@...tlin.com>

[ Upstream commit 915d25a9d69be969c1cc6c1dd0c3861f6da7b55e ]

In case of no phc we should not return SOFTWARE TIMESTAMPING flags as we do
not know whether the netdev supports of timestamping.
Remove it from the lan8841_ts_info and simply return 0.

Signed-off-by: Kory Maincent <kory.maincent@...tlin.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/phy/micrel.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c
index 927d3d54658e..09c26ad35df9 100644
--- a/drivers/net/phy/micrel.c
+++ b/drivers/net/phy/micrel.c
@@ -3609,12 +3609,8 @@ static int lan8841_ts_info(struct mii_timestamper *mii_ts,
 
 	info->phc_index = ptp_priv->ptp_clock ?
 				ptp_clock_index(ptp_priv->ptp_clock) : -1;
-	if (info->phc_index == -1) {
-		info->so_timestamping |= SOF_TIMESTAMPING_TX_SOFTWARE |
-					 SOF_TIMESTAMPING_RX_SOFTWARE |
-					 SOF_TIMESTAMPING_SOFTWARE;
+	if (info->phc_index == -1)
 		return 0;
-	}
 
 	info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE |
 				SOF_TIMESTAMPING_RX_HARDWARE |
-- 
2.43.0