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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org,
        Oleksandr Mazur <oleksandr.mazur@plvision.eu>,
        Maksym Glubokiy <maksym.glubokiy@plvision.eu>,
        "David S. Miller" <davem@davemloft.net>,
        Sasha Levin <sashal@kernel.org>
Subject: [PATCH 6.0 236/862] net: prestera: cache port state for non-phylink ports too
Date:   Wed, 19 Oct 2022 10:25:23 +0200
Message-Id: <20221019083300.474641938@linuxfoundation.org>
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From: Maksym Glubokiy <maksym.glubokiy@plvision.eu>

[ Upstream commit 704438dd4f030c1b3d28a2a9c8f182c32d9b6bc4 ]

Port event data must stored to port-state cache regardless of whether
the port uses phylink or not since this data is used by ethtool.

Fixes: 52323ef75414 ("net: marvell: prestera: add phylink support")
Signed-off-by: Oleksandr Mazur <oleksandr.mazur@plvision.eu>
Signed-off-by: Maksym Glubokiy <maksym.glubokiy@plvision.eu>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../ethernet/marvell/prestera/prestera_main.c | 36 +++++++++----------
 1 file changed, 17 insertions(+), 19 deletions(-)

diff --git a/drivers/net/ethernet/marvell/prestera/prestera_main.c b/drivers/net/ethernet/marvell/prestera/prestera_main.c
index a895862b4821..a0ad0bcbf89f 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera_main.c
+++ b/drivers/net/ethernet/marvell/prestera/prestera_main.c
@@ -799,32 +799,30 @@ static void prestera_port_handle_event(struct prestera_switch *sw,
 
 		caching_dw = &port->cached_hw_stats.caching_dw;
 
-		if (port->phy_link) {
-			memset(&smac, 0, sizeof(smac));
-			smac.valid = true;
-			smac.oper = pevt->data.mac.oper;
-			if (smac.oper) {
-				smac.mode = pevt->data.mac.mode;
-				smac.speed = pevt->data.mac.speed;
-				smac.duplex = pevt->data.mac.duplex;
-				smac.fc = pevt->data.mac.fc;
-				smac.fec = pevt->data.mac.fec;
-				phylink_mac_change(port->phy_link, true);
-			} else {
-				phylink_mac_change(port->phy_link, false);
-			}
-			prestera_port_mac_state_cache_write(port, &smac);
+		memset(&smac, 0, sizeof(smac));
+		smac.valid = true;
+		smac.oper = pevt->data.mac.oper;
+		if (smac.oper) {
+			smac.mode = pevt->data.mac.mode;
+			smac.speed = pevt->data.mac.speed;
+			smac.duplex = pevt->data.mac.duplex;
+			smac.fc = pevt->data.mac.fc;
+			smac.fec = pevt->data.mac.fec;
 		}
+		prestera_port_mac_state_cache_write(port, &smac);
 
 		if (port->state_mac.oper) {
-			if (!port->phy_link)
+			if (port->phy_link)
+				phylink_mac_change(port->phy_link, true);
+			else
 				netif_carrier_on(port->dev);
 
 			if (!delayed_work_pending(caching_dw))
 				queue_delayed_work(prestera_wq, caching_dw, 0);
-		} else if (netif_running(port->dev) &&
-			   netif_carrier_ok(port->dev)) {
-			if (!port->phy_link)
+		} else {
+			if (port->phy_link)
+				phylink_mac_change(port->phy_link, false);
+			else if (netif_running(port->dev) && netif_carrier_ok(port->dev))
 				netif_carrier_off(port->dev);
 
 			if (delayed_work_pending(caching_dw))
-- 
2.35.1