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kernel: Backport mv88e6xxx patch to keep pvid at 0 if VLAN-unaware and remove hack

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Keeping the pvid at 0 when VLAN-unaware makes it possible to drop the
hack introduced in commit 920eaab1d8 ("kernel: DSA roaming fix for
Marvell mv88e6xxx"). Dropping the hack makes it possible to use VLAN
interfaces with VID 1 on DSA ports without problems with FDB.

Signed-off-by: Marek Behún <kabel@kernel.org>
(cherry picked from commit 9caa6f0aa7)
Signed-off-by: Josef Schlehofer <pepe.schlehofer@gmail.com>
[drop kernel patch hack from Linux version 5.15, drop paragraph about
backport patch, which is not necessary as it is included in kernel 5.15]
This commit is contained in:
Marek Behún 2022-03-21 17:53:10 +01:00 committed by Christian Lamparter
parent 554ca44730
commit 742926e5f5
1 changed files with 0 additions and 18 deletions
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18
target/linux/generic/hack-5.15/710-net-dsa-mv88e6xxx-default-VID-1.patch
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@ -1,18 +0,0 @@
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -2321,6 +2321,7 @@ static int mv88e6xxx_port_fdb_add(struct
struct mv88e6xxx_chip *chip = ds->priv;
int err;
+ vid = vid ? : 1;
mv88e6xxx_reg_lock(chip);
err = mv88e6xxx_port_db_load_purge(chip, port, addr, vid,
MV88E6XXX_G1_ATU_DATA_STATE_UC_STATIC);
@@ -2335,6 +2336,7 @@ static int mv88e6xxx_port_fdb_del(struct
struct mv88e6xxx_chip *chip = ds->priv;
int err;
+ vid = vid ? : 1;
mv88e6xxx_reg_lock(chip);
err = mv88e6xxx_port_db_load_purge(chip, port, addr, vid, 0);
mv88e6xxx_reg_unlock(chip);