From: Vivien Didelot <vivien.didelot@gmail.com>
Date: Thu, 1 Aug 2019 14:36:34 -0400
Subject: net: dsa: mv88e6xxx: explicit entry passed to vtu_getnext
Patch-mainline: v5.4-rc1
Git-commit: 425d2d37aba6710c6fe3ad9f8c6755c49986f3e5
References: jsc#SLE-13536

mv88e6xxx_vtu_getnext interprets two members from the input
mv88e6xxx_vtu_entry structure: the (excluded) vid member to start
the iteration from, and the valid argument specifying whether the VID
must be written or not (only required once at the start of a loop).

Explicit the assignation of these two fields right before calling
mv88e6xxx_vtu_getnext, as it is done in the mv88e6xxx_vtu_get wrapper.

Signed-off-by: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/dsa/mv88e6xxx/chip.c |   21 ++++++++++++---------
 1 file changed, 12 insertions(+), 9 deletions(-)

--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -1336,9 +1336,7 @@ static int mv88e6xxx_vtu_loadpurge(struc
 static int mv88e6xxx_atu_new(struct mv88e6xxx_chip *chip, u16 *fid)
 {
 	DECLARE_BITMAP(fid_bitmap, MV88E6XXX_N_FID);
-	struct mv88e6xxx_vtu_entry vlan = {
-		.vid = chip->info->max_vid,
-	};
+	struct mv88e6xxx_vtu_entry vlan;
 	int i, err;
 
 	bitmap_zero(fid_bitmap, MV88E6XXX_N_FID);
@@ -1353,6 +1351,9 @@ static int mv88e6xxx_atu_new(struct mv88
 	}
 
 	/* Set every FID bit used by the VLAN entries */
+	vlan.vid = chip->info->max_vid;
+	vlan.valid = false;
+
 	do {
 		err = mv88e6xxx_vtu_getnext(chip, &vlan);
 		if (err)
@@ -1416,9 +1417,7 @@ static int mv88e6xxx_port_check_hw_vlan(
 					u16 vid_begin, u16 vid_end)
 {
 	struct mv88e6xxx_chip *chip = ds->priv;
-	struct mv88e6xxx_vtu_entry vlan = {
-		.vid = vid_begin - 1,
-	};
+	struct mv88e6xxx_vtu_entry vlan;
 	int i, err;
 
 	/* DSA and CPU ports have to be members of multiple vlans */
@@ -1428,6 +1427,9 @@ static int mv88e6xxx_port_check_hw_vlan(
 	if (!vid_begin)
 		return -EOPNOTSUPP;
 
+	vlan.vid = vid_begin - 1;
+	vlan.valid = false;
+
 	do {
 		err = mv88e6xxx_vtu_getnext(chip, &vlan);
 		if (err)
@@ -1764,9 +1766,7 @@ static int mv88e6xxx_port_db_dump_fid(st
 static int mv88e6xxx_port_db_dump(struct mv88e6xxx_chip *chip, int port,
 				  dsa_fdb_dump_cb_t *cb, void *data)
 {
-	struct mv88e6xxx_vtu_entry vlan = {
-		.vid = chip->info->max_vid,
-	};
+	struct mv88e6xxx_vtu_entry vlan;
 	u16 fid;
 	int err;
 
@@ -1780,6 +1780,9 @@ static int mv88e6xxx_port_db_dump(struct
 		return err;
 
 	/* Dump VLANs' Filtering Information Databases */
+	vlan.vid = chip->info->max_vid;
+	vlan.valid = false;
+
 	do {
 		err = mv88e6xxx_vtu_getnext(chip, &vlan);
 		if (err)