diff options
| author | Michal Vokáč <michal.vokac@ysoft.com> | 2019-09-26 10:59:17 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-09-30 11:06:38 -0700 |
| commit | 7ae6d93c8f052b7a77ba56ed0f654e22a2876739 (patch) | |
| tree | c3950feb4b7a972f78de4c7c00b69d00b694a29d /drivers/net | |
| parent | 02dc96ef6c25f990452c114c59d75c368a1f4c8f (diff) | |
| download | linux-7ae6d93c8f052b7a77ba56ed0f654e22a2876739.tar.bz2 | |
net: dsa: qca8k: Use up to 7 ports for all operations
The QCA8K family supports up to 7 ports. So use the existing
QCA8K_NUM_PORTS define to allocate the switch structure and limit all
operations with the switch ports.
This was not an issue until commit 0394a63acfe2 ("net: dsa: enable and
disable all ports") disabled all unused ports. Since the unused ports 7-11
are outside of the correct register range on this switch some registers
were rewritten with invalid content.
Fixes: 6b93fb46480a ("net-next: dsa: add new driver for qca8xxx family")
Fixes: a0c02161ecfc ("net: dsa: variable number of ports")
Fixes: 0394a63acfe2 ("net: dsa: enable and disable all ports")
Signed-off-by: Michal Vokáč <michal.vokac@ysoft.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/dsa/qca8k.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/dsa/qca8k.c b/drivers/net/dsa/qca8k.c index 684aa51684db..b00274caae4f 100644 --- a/drivers/net/dsa/qca8k.c +++ b/drivers/net/dsa/qca8k.c @@ -705,7 +705,7 @@ qca8k_setup(struct dsa_switch *ds) BIT(0) << QCA8K_GLOBAL_FW_CTRL1_UC_DP_S); /* Setup connection between CPU port & user ports */ - for (i = 0; i < DSA_MAX_PORTS; i++) { + for (i = 0; i < QCA8K_NUM_PORTS; i++) { /* CPU port gets connected to all user ports of the switch */ if (dsa_is_cpu_port(ds, i)) { qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(QCA8K_CPU_PORT), @@ -1077,7 +1077,7 @@ qca8k_sw_probe(struct mdio_device *mdiodev) if (id != QCA8K_ID_QCA8337) return -ENODEV; - priv->ds = dsa_switch_alloc(&mdiodev->dev, DSA_MAX_PORTS); + priv->ds = dsa_switch_alloc(&mdiodev->dev, QCA8K_NUM_PORTS); if (!priv->ds) return -ENOMEM; |