Subject: Re: [PATCH net-next v8 2/3] net: ti: icssm-prueth: Add switchdev support for icssm_prueth driver

From: Jakub Kicinski <[email-masked]>
Date: Mon, 1 Dec 2025 14:16:38 -0800

On Wed, 26 Nov 2025 21:57:13 +0530 Parvathi Pudi wrote:
> + */
> +static void icssm_prueth_sw_switchdev_event_work(struct work_struct *work)
> +{
> +	struct icssm_prueth_sw_switchdev_event_work *switchdev_work =
> +		container_of(work,
> +			     struct icssm_prueth_sw_switchdev_event_work, work);

Consider using shorter type names.

> +	struct prueth_emac *emac = switchdev_work->emac;
> +	struct switchdev_notifier_fdb_info *fdb;
> +	struct prueth *prueth = emac->prueth;
> +	int port = emac->port_id;
> +
> +	rtnl_lock();
> +
> +	/* Interface is not up */
> +	if (!emac->prueth->fdb_tbl) {
> +		rtnl_unlock();

Are you not leaking the device reference here?

> +		return;
> +	}
> +
> +	switch (switchdev_work->event) {
> +	case SWITCHDEV_FDB_ADD_TO_DEVICE:
> +		fdb = &switchdev_work->fdb_info;
> +		dev_dbg(prueth->dev,
> +			"prueth fdb add: MACID = %pM vid = %u flags = %u -- port %d\n",
> +			fdb->addr, fdb->vid, fdb->added_by_user, port);
> +
> +		if (!fdb->added_by_user)
> +			break;
> +
> +		if (fdb->is_local)
> +			break;
> +
> +		icssm_prueth_sw_fdb_add(emac, fdb);
> +		icssm_prueth_sw_fdb_offload_notify(emac->ndev, fdb);
> +		break;
> +	case SWITCHDEV_FDB_DEL_TO_DEVICE:
> +		fdb = &switchdev_work->fdb_info;
> +		dev_dbg(prueth->dev,
> +			"prueth fdb del: MACID = %pM vid = %u flags = %u -- port %d\n",
> +			fdb->addr, fdb->vid, fdb->added_by_user, port);
> +
> +		if (fdb->is_local)
> +			break;
> +
> +		icssm_prueth_sw_fdb_del(emac, fdb);
> +		break;
> +	default:
> +		break;
> +	}
> +	rtnl_unlock();
> +
> +	netdev_put(emac->ndev, &switchdev_work->ndev_tracker);
> +	kfree(switchdev_work->fdb_info.addr);
> +	kfree(switchdev_work);
-- 
pw-bot: cr