> +static void hnae3_list_add(spinlock_t *lock, struct list_head *node,
> + struct list_head *head)
> +{
> + unsigned long flags;
> +
> + spin_lock_irqsave(lock, flags);
> + list_add_tail(node, head);
> + spin_unlock_irqrestore(lock, flags);
> +}
> +
> +static void hnae3_list_del(spinlock_t *lock, struct list_head *node)
> +{
> + unsigned long flags;
> +
> + spin_lock_irqsave(lock, flags);
> + list_del(node);
> + spin_unlock_irqrestore(lock, flags);
> +}
> +
> +int hnae3_register_client(struct hnae3_client *client)
> +{
> + struct hnae3_client *client_tmp;
> + struct hnae3_ae_dev *ae_dev;
> + int ret;
> +
> + /* One system should only have one client for every type */
> + list_for_each_entry(client_tmp, &hnae3_client_list, node) {
> + if (client_tmp->type == client->type)
> + return 0;
> + }
> +
> + hnae3_list_add(&hnae3_list_client_lock, &client->node,
> + &hnae3_client_list);
Please could you explain your locking scheme. I don't get it.
Thanks
Andrew
