net: add description for len argument of dev_get_phys_port_name
When the function dev_get_phys_port_name was added it missed a description
for it's len argument. Adding it.
Fixes: db24a9044ee1 ("net: add support for phys_port_name")
Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/core/dev.c b/net/core/dev.c
index 43c74ca..b9bcbe7 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -6445,6 +6445,7 @@
* dev_get_phys_port_name - Get device physical port name
* @dev: device
* @name: port name
+ * @len: limit of bytes to copy to name
*
* Get device physical port name
*/