gianfar: Use interface name in interrupt name to distinguish the source.

Interface name (ex. eth0) is used as the prefix for the interrupt name,
with _rx, _tx, and _er appended to distinguish multiple interrupts on
the same interface.

Signed-off-by: Dai Haruki <dai.haruki@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 24 insertions, 6 deletions

diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c
index dbbeee372ef8..854f2ae3e56e 100644
--- a/drivers/net/gianfar.c
+++ b/drivers/net/gianfar.c
@@ -304,8 +304,9 @@ static int gfar_probe(struct of_device *ofdev,
         u32 tempval;
         struct net_device *dev = NULL;
         struct gfar_private *priv = NULL;
-        int err = 0;
         DECLARE_MAC_BUF(mac);
+        int err = 0;
+        int len_devname;
 
         /* Create an ethernet device instance */
         dev = alloc_etherdev(sizeof (*priv));
@@ -447,6 +448,23 @@ static int gfar_probe(struct of_device *ofdev,
                 goto register_fail;
         }
 
+        /* fill out IRQ number and name fields */
+        len_devname = strlen(dev->name);
+        strncpy(&priv->int_name_tx[0], dev->name, len_devname);
+        if (priv->device_flags & FSL_GIANFAR_DEV_HAS_MULTI_INTR) {
+                strncpy(&priv->int_name_tx[len_devname],
+                        "_tx", sizeof("_tx") + 1);
+
+                strncpy(&priv->int_name_rx[0], dev->name, len_devname);
+                strncpy(&priv->int_name_rx[len_devname],
+                        "_rx", sizeof("_rx") + 1);
+
+                strncpy(&priv->int_name_er[0], dev->name, len_devname);
+                strncpy(&priv->int_name_er[len_devname],
+                        "_er", sizeof("_er") + 1);
+        } else
+                priv->int_name_tx[len_devname] = '\0';
+
         /* Create all the sysfs files */
         gfar_init_sysfs(dev);
 
@@ -1020,7 +1038,7 @@ int startup_gfar(struct net_device *dev)
                 /* Install our interrupt handlers for Error,
                  * Transmit, and Receive */
                 if (request_irq(priv->interruptError, gfar_error,
-                                0, "enet_error", dev) < 0) {
+                                0, priv->int_name_er, dev) < 0) {
                         if (netif_msg_intr(priv))
                                 printk(KERN_ERR "%s: Can't get IRQ %d\n",
                                         dev->name, priv->interruptError);
@@ -1030,7 +1048,7 @@ int startup_gfar(struct net_device *dev)
                 }
 
                 if (request_irq(priv->interruptTransmit, gfar_transmit,
-                                0, "enet_tx", dev) < 0) {
+                                0, priv->int_name_tx, dev) < 0) {
                         if (netif_msg_intr(priv))
                                 printk(KERN_ERR "%s: Can't get IRQ %d\n",
                                         dev->name, priv->interruptTransmit);
@@ -1041,7 +1059,7 @@ int startup_gfar(struct net_device *dev)
                 }
 
                 if (request_irq(priv->interruptReceive, gfar_receive,
-                                0, "enet_rx", dev) < 0) {
+                                0, priv->int_name_rx, dev) < 0) {
                         if (netif_msg_intr(priv))
                                 printk(KERN_ERR "%s: Can't get IRQ %d (receive0)\n",
                                                 dev->name, priv->interruptReceive);
@@ -1051,10 +1069,10 @@ int startup_gfar(struct net_device *dev)
                 }
         } else {
                 if (request_irq(priv->interruptTransmit, gfar_interrupt,
-                                0, "gfar_interrupt", dev) < 0) {
+                                0, priv->int_name_tx, dev) < 0) {
                         if (netif_msg_intr(priv))
                                 printk(KERN_ERR "%s: Can't get IRQ %d\n",
-                                        dev->name, priv->interruptError);
+                                        dev->name, priv->interruptTransmit);
 
                         err = -1;
                         goto err_irq_fail;