netdev - [PATCH net 2/6] net: dsa: ksz: move tag/untag action

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Date:   Wed, 13 Jan 2021 13:45:18 +0100
From:   Gilles DOFFE <gilles.doffe@...oirfairelinux.com>
To:     netdev@...r.kernel.org
Cc:     Woojung Huh <woojung.huh@...rochip.com>,
        UNGLinuxDriver@...rochip.com, Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, linux-kernel@...r.kernel.org
Subject: [PATCH net 2/6] net: dsa: ksz: move tag/untag action

Move tag/untag action at the end of the function to avoid
tagging or untagging traffic if only vlan 0 is handled.

Signed-off-by: Gilles DOFFE <gilles.doffe@...oirfairelinux.com>
---
 drivers/net/dsa/microchip/ksz8795.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/dsa/microchip/ksz8795.c b/drivers/net/dsa/microchip/ksz8795.c
index 6962ba4ee125..4b060503b2e8 100644
--- a/drivers/net/dsa/microchip/ksz8795.c
+++ b/drivers/net/dsa/microchip/ksz8795.c
@@ -840,8 +840,6 @@ static void ksz8795_port_vlan_add(struct dsa_switch *ds, int port,
 	u8 fid, member, valid;
 	int ret;
 
-	ksz_port_cfg(dev, port, P_TAG_CTRL, PORT_REMOVE_TAG, untagged);
-
 	for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++) {
 		if (vid == 0)
 			continue;
@@ -874,6 +872,8 @@ static void ksz8795_port_vlan_add(struct dsa_switch *ds, int port,
 		vid |= new_pvid;
 		ksz_pwrite16(dev, port, REG_PORT_CTRL_VID, vid);
 	}
+
+	ksz_port_cfg(dev, port, P_TAG_CTRL, PORT_REMOVE_TAG, untagged);
 }
 
 static int ksz8795_port_vlan_del(struct dsa_switch *ds, int port,
-- 
2.25.1