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

[Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>]

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Hello Franz,

the workqueues are the most "non-trivial" thing which prevented us so far
from backporting batman-adv to these older kernel. I'd also be interested 
to integrate patches if anyone has a solution for this. :)

best regards,
	Simon


On Mon, Apr 12, 2010 at 09:28:30AM +0200, Franz Böhm wrote:
> 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
>

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