[B.A.T.M.A.N.] Patch batman-adv for kernel 2.6.15

["Franz Böhm" <fboehm@aon.at>]

Hi,

I am trying to get batman-adv (kernelland) running on Ubiquiti Networks 
hardware. Unfortunately the Ubiquiti SDK uses kernel 2.6.15 and 
batman-adv needs at least 2.6.20. I did have some success in patching 
and running batman-adv-kernelland 0.1 (r1176). I would of course prefer 
using batman-adv 0.2 but I do have problems implementing the older 
kernel workqueue API.

Perhaps someone can give me a hint on porting for example this function 
from send.c to the old workqueue API.

void send_outstanding_bat_packet(struct work_struct *work)
{
    struct delayed_work *delayed_work =
        container_of(work, struct delayed_work, work);
    struct forw_packet *forw_packet =
        container_of(delayed_work, struct forw_packet, delayed_work);
    unsigned long flags;

    spin_lock_irqsave(&forw_bat_list_lock, flags);
    hlist_del(&forw_packet->list);
    spin_unlock_irqrestore(&forw_bat_list_lock, flags);

    send_packet(forw_packet);

    /**
     * we have to have at least one packet in the queue
     * to determine the queues wake up time unless we are
     * shutting down
     */
    if ((forw_packet->own) &&
        (atomic_read(&module_state) != MODULE_DEACTIVATING))
        schedule_own_packet(forw_packet->if_incoming);

    forw_packet_free(forw_packet);
}

Kind regards,
Franz