commit 5b4a10390460cccf17a9fac739e153d68cf25ef5
author Varka Bhadram <varkabhadram@gmail.com> Thu Apr 30 17:44:57 2015 +0200
committer Marcel Holtmann <marcel@holtmann.org> Thu Apr 30 18:48:10 2015 +0200
tree 108a26199c1ce029c3c1c128a2689130d626f00a
parent 4748e86ecf262ae9d94b7e4073653554951ceb7a

cfg802154: pass name_assign_type to rdev_add_virtual_intf()

This code is based on commit 6bab2e19c5ffd
("cfg80211: pass name_assign_type to rdev_add_virtual_intf()")

This will expose in sysfs whether the ifname of a IEEE-802.15.4
device is set by userspace or generated by the kernel.
We are using two types of name_assign_types
 o NET_NAME_ENUM: Default interface name provided by kernel
 o NET_NAME_USER: Interface name provided by user.

Signed-off-by: Varka Bhadram <varkab@cdac.in>
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

net/ieee802154/nl-phy.c

diff --git a/net/ieee802154/nl-phy.c b/net/ieee802154/nl-phy.c
index 1b9d25f6..346c666 100644
--- a/net/ieee802154/nl-phy.c
+++ b/net/ieee802154/nl-phy.c
@@ -175,6 +175,7 @@
 	int rc = -ENOBUFS;
 	struct net_device *dev;
 	int type = __IEEE802154_DEV_INVALID;
+	unsigned char name_assign_type;
 
 	pr_debug("%s\n", __func__);
 
@@ -190,8 +191,10 @@
 		if (devname[nla_len(info->attrs[IEEE802154_ATTR_DEV_NAME]) - 1]
 				!= '\0')
 			return -EINVAL; /* phy name should be null-terminated */
+		name_assign_type = NET_NAME_USER;
 	} else  {
 		devname = "wpan%d";
+		name_assign_type = NET_NAME_ENUM;
 	}
 
 	if (strlen(devname) >= IFNAMSIZ)
@@ -221,7 +224,7 @@
 	}
 
 	dev = rdev_add_virtual_intf_deprecated(wpan_phy_to_rdev(phy), devname,
-					       type);
+					       name_assign_type, type);
 	if (IS_ERR(dev)) {
 		rc = PTR_ERR(dev);
 		goto nla_put_failure;

net/ieee802154/nl802154.c

diff --git a/net/ieee802154/nl802154.c b/net/ieee802154/nl802154.c
index a4daf91..f3c12f6 100644
--- a/net/ieee802154/nl802154.c
+++ b/net/ieee802154/nl802154.c
@@ -589,7 +589,7 @@
 
 	return rdev_add_virtual_intf(rdev,
 				     nla_data(info->attrs[NL802154_ATTR_IFNAME]),
-				     type, extended_addr);
+				     NET_NAME_USER, type, extended_addr);
 }
 
 static int nl802154_del_interface(struct sk_buff *skb, struct genl_info *info)

net/ieee802154/rdev-ops.h

diff --git a/net/ieee802154/rdev-ops.h b/net/ieee802154/rdev-ops.h
index 624413e..7b5a9dd 100644
--- a/net/ieee802154/rdev-ops.h
+++ b/net/ieee802154/rdev-ops.h
@@ -8,10 +8,12 @@
 
 static inline struct net_device *
 rdev_add_virtual_intf_deprecated(struct cfg802154_registered_device *rdev,
-				 const char *name, int type)
+				 const char *name,
+				 unsigned char name_assign_type,
+				 int type)
 {
 	return rdev->ops->add_virtual_intf_deprecated(&rdev->wpan_phy, name,
-						      type);
+						      name_assign_type, type);
 }
 
 static inline void
@@ -23,13 +25,15 @@
 
 static inline int
 rdev_add_virtual_intf(struct cfg802154_registered_device *rdev, char *name,
+		      unsigned char name_assign_type,
 		      enum nl802154_iftype type, __le64 extended_addr)
 {
 	int ret;
 
 	trace_802154_rdev_add_virtual_intf(&rdev->wpan_phy, name, type,
 					   extended_addr);
-	ret = rdev->ops->add_virtual_intf(&rdev->wpan_phy, name, type,
+	ret = rdev->ops->add_virtual_intf(&rdev->wpan_phy, name,
+					  name_assign_type, type,
 					  extended_addr);
 	trace_802154_rdev_return_int(&rdev->wpan_phy, ret);
 	return ret;