[PATCH][2.6.26] ehea: set mac address fix

[Jan-Bernd Themann]

eHEA has to call firmware functions in order to change the mac address
of a logical port. This patch checks if the logical port is up
when calling the register / deregister mac address calls. If the port
is down these firmware calls would fail and are therefore not executed.

Signed-off-by: Jan-Bernd Themann <themann at de.ibm.com>

---

diff -Nurp -X dontdiff linux-2.6.26-rc4/drivers/net/ehea/ehea_main.c patched_kernel/drivers/net/ehea/ehea_main.c
--- linux-2.6.26-rc4/drivers/net/ehea/ehea_main.c	2008-05-26 20:08:11.000000000 +0200
+++ patched_kernel/drivers/net/ehea/ehea_main.c	2008-06-09 15:42:17.000000000 +0200
@@ -1766,16 +1766,20 @@ static int ehea_set_mac_addr(struct net_
 	mutex_lock(&ehea_bcmc_regs.lock);
 
 	/* Deregister old MAC in pHYP */
-	ret = ehea_broadcast_reg_helper(port, H_DEREG_BCMC);
-	if (ret)
-		goto out_upregs;
+	if (port->state == EHEA_PORT_UP) {
+		ret = ehea_broadcast_reg_helper(port, H_DEREG_BCMC);
+		if (ret)
+			goto out_upregs;
+	}
 
 	port->mac_addr = cb0->port_mac_addr << 16;
 
 	/* Register new MAC in pHYP */
-	ret = ehea_broadcast_reg_helper(port, H_REG_BCMC);
-	if (ret)
-		goto out_upregs;
+	if (port->state == EHEA_PORT_UP) {
+		ret = ehea_broadcast_reg_helper(port, H_REG_BCMC);
+		if (ret)
+			goto out_upregs;
+	}
 
 	ret = 0;