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| author | Russell King <rmk+kernel@armlinux.org.uk> | 2020-02-26 17:14:26 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-02-26 20:58:33 -0800 |
| commit | 933b4425086a81a928ce7d05856d2f1ee0bcf15e (patch) | |
| tree | da4d8a859ee5b24b6c2081d4f4e2086050fc2540 /drivers | |
| parent | 07c6f9805f12f1bb538ef165a092b300350384aa (diff) | |
| download | linux-stable-933b4425086a81a928ce7d05856d2f1ee0bcf15e.tar.gz linux-stable-933b4425086a81a928ce7d05856d2f1ee0bcf15e.tar.bz2 linux-stable-933b4425086a81a928ce7d05856d2f1ee0bcf15e.zip | |
net: dsa: mv88e6xxx: fix duplicate vlan warning
When setting VLANs on DSA switches, the VLAN is added to both the port
concerned as well as the CPU port by dsa_slave_vlan_add(), as well as
any DSA ports. If multiple ports are configured with the same VLAN ID,
this triggers a warning on the CPU and DSA ports.
Avoid this warning for CPU and DSA ports.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/dsa/mv88e6xxx/chip.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c index 4ec09cc8dcdc..705c118f6fdd 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.c +++ b/drivers/net/dsa/mv88e6xxx/chip.c @@ -1795,7 +1795,7 @@ static int mv88e6xxx_broadcast_setup(struct mv88e6xxx_chip *chip, u16 vid) } static int mv88e6xxx_port_vlan_join(struct mv88e6xxx_chip *chip, int port, - u16 vid, u8 member) + u16 vid, u8 member, bool warn) { const u8 non_member = MV88E6XXX_G1_VTU_DATA_MEMBER_TAG_NON_MEMBER; struct mv88e6xxx_vtu_entry vlan; @@ -1840,7 +1840,7 @@ static int mv88e6xxx_port_vlan_join(struct mv88e6xxx_chip *chip, int port, err = mv88e6xxx_vtu_loadpurge(chip, &vlan); if (err) return err; - } else { + } else if (warn) { dev_info(chip->dev, "p%d: already a member of VLAN %d\n", port, vid); } @@ -1854,6 +1854,7 @@ static void mv88e6xxx_port_vlan_add(struct dsa_switch *ds, int port, struct mv88e6xxx_chip *chip = ds->priv; bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED; bool pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID; + bool warn; u8 member; u16 vid; @@ -1867,10 +1868,15 @@ static void mv88e6xxx_port_vlan_add(struct dsa_switch *ds, int port, else member = MV88E6XXX_G1_VTU_DATA_MEMBER_TAG_TAGGED; + /* net/dsa/slave.c will call dsa_port_vlan_add() for the affected port + * and then the CPU port. Do not warn for duplicates for the CPU port. + */ + warn = !dsa_is_cpu_port(ds, port) && !dsa_is_dsa_port(ds, port); + mv88e6xxx_reg_lock(chip); for (vid = vlan->vid_begin; vid <= vlan->vid_end; ++vid) - if (mv88e6xxx_port_vlan_join(chip, port, vid, member)) + if (mv88e6xxx_port_vlan_join(chip, port, vid, member, warn)) dev_err(ds->dev, "p%d: failed to add VLAN %d%c\n", port, vid, untagged ? 'u' : 't'); |