kernel: Backport mv88e6xxx patch to keep pvid at 0 if VLAN-unaware and remove hack
Keeping the pvid at 0 when VLAN-unaware makes it possible to drop the hack introduced in commit920eaab1d8("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 commit9caa6f0aa7) 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]
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		 Marek Behún
					Marek Behún
				
			
				
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						 Christian Lamparter
						Christian Lamparter
					
				
			
			
				
	
			
			
			 Christian Lamparter
						Christian Lamparter
					
				
			
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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); |  | ||||||
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