From 8f30ea4a6bf753c964a56a456ba558c7b52054e2 Mon Sep 17 00:00:00 2001
From: Michael Brown <mcb30@ipxe.org>
Date: Mon, 21 Oct 2013 14:02:19 +0100
Subject: [PATCH] [netdevice] Add find_netdev_by_index()

Signed-off-by: Michael Brown <mcb30@ipxe.org>
---
 src/include/ipxe/netdevice.h |  1 +
 src/net/netdevice.c          | 18 ++++++++++++++++++
 2 files changed, 19 insertions(+)

diff --git a/src/include/ipxe/netdevice.h b/src/include/ipxe/netdevice.h
index 7f819d9a..2d08f34f 100644
--- a/src/include/ipxe/netdevice.h
+++ b/src/include/ipxe/netdevice.h
@@ -605,6 +605,7 @@ extern void netdev_close ( struct net_device *netdev );
 extern void unregister_netdev ( struct net_device *netdev );
 extern void netdev_irq ( struct net_device *netdev, int enable );
 extern struct net_device * find_netdev ( const char *name );
+extern struct net_device * find_netdev_by_index ( unsigned int index );
 extern struct net_device * find_netdev_by_location ( unsigned int bus_type,
 						     unsigned int location );
 extern struct net_device * last_opened_netdev ( void );
diff --git a/src/net/netdevice.c b/src/net/netdevice.c
index 283632f6..c7c86c1a 100644
--- a/src/net/netdevice.c
+++ b/src/net/netdevice.c
@@ -684,6 +684,24 @@ struct net_device * find_netdev ( const char *name ) {
 	return NULL;
 }
 
+/**
+ * Get network device by index
+ *
+ * @v index		Network device index
+ * @ret netdev		Network device, or NULL
+ */
+struct net_device * find_netdev_by_index ( unsigned int index ) {
+	struct net_device *netdev;
+
+	/* Identify network device by index */
+	list_for_each_entry ( netdev, &net_devices, list ) {
+		if ( netdev->index == index )
+			return netdev;
+	}
+
+	return NULL;
+}
+
 /**
  * Get network device by PCI bus:dev.fn address
  *