Hi Florian,
> On Wed, Apr 1, 2015 at 7:13 PM, Florian Grandel <fgrandel@xxxxxxxxx> wrote:
> Hi!
>
> I got quite far today refactoring from
>
> struct hci_dev { ... struct adv_info adv_instance; ... };
>
> to
>
> struct hci_dev { ... struct list_head adv_instances; ... };
>
> But in the end I got stuck on refactoring the adv timeout callback.
> Originally it looked like this:
>
> static void adv_timeout_expired(struct work_struct *work)
> {
> struct hci_dev *hdev = container_of(work, struct hci_dev,
> adv_instance.timeout_exp.work);
> ...
> }
>
> But now I would have to construct a pointer to the hci_dev struct from a
> list entry:
>
> static void adv_timeout_expired(struct work_struct *work)
> {
> struct adv_info *adv_instance = container_of(work, struct adv_info,
> timeout_exp.work);
> ...
> }
>
> I couldn't find a way to get the list head of the adv info list entry so
> that I could retrieve its containing hci_dev structure, though.
>
Once simple solution is to add a struct hci_dev pointer to struct
adv_info. Once you get the pointer to the instance then you can obtain
the hci_dev pointer that way.
> How would I construct the required hci_dev struct from the work pointer in
> this case? Any ideas?
>
> Florian
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Thanks,
Arman
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