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From 8217c8f4885096f127690a7af11ba6c992bfa5da Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Wed, 10 Mar 2021 14:17:58 -0800
Subject: [PATCH 02/16] net: dsa: bcm_sf2: Qualify phydev->dev_flags based on
 port
Git-commit: 47142ed6c34d544ae9f0463e58d482289cbe0d46
Patch-mainline: v5.12-rc5
References: git-fixes

Similar to commit 92696286f3bb37ba50e4bd8d1beb24afb759a799 ("net:
bcmgenet: Set phydev->dev_flags only for internal PHYs") we need to
qualify the phydev->dev_flags based on whether the port is connected to
an internal or external PHY otherwise we risk having a flags collision
with a completely different interpretation depending on the driver.

Fixes: aa9aef77c761 ("net: dsa: bcm_sf2: communicate integrated PHY revision to PHY driver")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Denis Kirjanov <denis.kirjanov@suse.com>
---
 drivers/net/dsa/bcm_sf2.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c
index ded1c40d7fe4..1c4af75ffe9b 100644
--- a/drivers/net/dsa/bcm_sf2.c
+++ b/drivers/net/dsa/bcm_sf2.c
@@ -614,8 +614,10 @@ static u32 bcm_sf2_sw_get_phy_flags(struct dsa_switch *ds, int port)
 	 * in bits 15:8 and the patch level in bits 7:0 which is exactly what
 	 * the REG_PHY_REVISION register layout is.
 	 */
-
-	return priv->hw_params.gphy_rev;
+	if (priv->int_phy_mask & BIT(port))
+		return priv->hw_params.gphy_rev;
+	else
+		return 0;
 }
 
 static void bcm_sf2_sw_adjust_link(struct dsa_switch *ds, int port,
-- 
2.16.4