net: dsa: remove pcs_poll

With drivers converted over to using phylink PCS, there is no need for
the struct dsa_switch member "pcs_poll" to exist anymore - there is a
flag in the struct phylink_pcs which indicates whether this PCS needs
to be polled which supersedes this.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/net/dsa.h

@@ -391,11 +391,6 @@ struct dsa_switch {
 	 */
 	u32			vlan_filtering:1;
 
-	/* MAC PCS does not provide link state change interrupt, and requires
-	 * polling. Flag passed on to PHYLINK.
-	 */
-	u32			pcs_poll:1;
-
 	/* For switches that only have the MRU configurable. To ensure the
 	 * configured MTU is not exceeded, normalization of MRU on all bridged
 	 * interfaces is needed.

net/dsa/port.c

@@ -1251,7 +1251,6 @@ static int dsa_port_phylink_register(struct dsa_port *dp)
 
 	dp->pl_config.dev = ds->dev;
 	dp->pl_config.type = PHYLINK_DEV;
-	dp->pl_config.pcs_poll = ds->pcs_poll;
 
 	err = dsa_port_phylink_create(dp);
 	if (err)