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dsa: mv88e6xxx: Don't poll forced interfaces for state changes

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When polling for link status, don't consider ports which have a forced
link. Such ports don't monitor their phy or may not even have a phy.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Andrew Lunn 2015-08-31 15:56:52 +02:00 committed by David S. Miller
parent e7e72ac05a
commit 8b59d19e74
1 changed files with 5 additions and 0 deletions
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5
drivers/net/dsa/mv88e6xxx.c
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@ -395,6 +395,7 @@ void mv88e6xxx_poll_link(struct dsa_switch *ds)
for (i = 0; i < DSA_MAX_PORTS; i++) {
struct net_device *dev;
int uninitialized_var(port_status);
int pcs_ctrl;
int link;
int speed;
int duplex;
@ -404,6 +405,10 @@ void mv88e6xxx_poll_link(struct dsa_switch *ds)
if (dev == NULL)
continue;
pcs_ctrl = mv88e6xxx_reg_read(ds, REG_PORT(i), PORT_PCS_CTRL);
if (pcs_ctrl < 0 || pcs_ctrl & PORT_PCS_CTRL_FORCE_LINK)
continue;
link = 0;
if (dev->flags & IFF_UP) {
port_status = mv88e6xxx_reg_read(ds, REG_PORT(i),