netdev - [PATCH wpan-next v4 01/11] ieee802154: Let PAN IDs be reset

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Date: Fri, 22 Sep 2023 17:50:19 +0200
From: Miquel Raynal <miquel.raynal@...tlin.com>
To: Alexander Aring <alex.aring@...il.com>,
	Stefan Schmidt <stefan@...enfreihafen.org>,
	linux-wpan@...r.kernel.org
Cc: "David S. Miller" <davem@...emloft.net>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Eric Dumazet <edumazet@...gle.com>,
	netdev@...r.kernel.org,
	David Girault <david.girault@...vo.com>,
	Romuald Despres <romuald.despres@...vo.com>,
	Frederic Blain <frederic.blain@...vo.com>,
	Nicolas Schodet <nico@...fr.eu.org>,
	Guilhem Imberton <guilhem.imberton@...vo.com>,
	Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
	Miquel Raynal <miquel.raynal@...tlin.com>
Subject: [PATCH wpan-next v4 01/11] 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@...tlin.com>
---
 net/ieee802154/nl802154.c | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/net/ieee802154/nl802154.c b/net/ieee802154/nl802154.c
index d610c1886160..46ac6f599fe1 100644
--- 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);
 }
 
-- 
2.34.1