ieee802154: Let PAN IDs be reset

Soon association and disassociation will be implemented, which will
require to be able to either change the PAN ID from 0xFFFF to a real
value when association succeeded, or to reset the PAN ID to 0xFFFF upon
disassociation. Let's allow to do that manually for now.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Stefan Schmidt <stefan@datenfreihafen.org>
Acked-by: Alexander Aring <aahringo@redhat.com>
Link: https://lore.kernel.org/linux-wpan/20230927181214.129346-2-miquel.raynal@bootlin.com

diff --git a/net/ieee802154/nl802154.c b/net/ieee802154/nl802154.c
index 1a265a4..1b6a9f2 100644 (file)
--- a/net/ieee802154/nl802154.c
+++ b/net/ieee802154/nl802154.c
@@ -1087,16 +1087,6 @@ static int nl802154_set_pan_id(struct sk_buff *skb, struct genl_info *info)
 
        pan_id = nla_get_le16(info->attrs[NL802154_ATTR_PAN_ID]);
 
-       /* TODO
-        * I am not sure about to check here on broadcast pan_id.
-        * Broadcast is a valid setting, comment from 802.15.4:
-        * If this value is 0xffff, the device is not associated.
-        *
-        * This could useful to simple deassociate an device.
-        */
-       if (pan_id == cpu_to_le16(IEEE802154_PAN_ID_BROADCAST))
-               return -EINVAL;
-
        return rdev_set_pan_id(rdev, wpan_dev, pan_id);
 }