Re: rtlwifi: use tasklet_setup to initialize rx_work_tasklet
From: Kalle Valo
Date: Mon Feb 08 2021 - 05:51:17 EST
Emil Renner Berthing <kernel@xxxxxxxx> wrote:
> In commit d3ccc14dfe95 most of the tasklets in this driver was
> updated to the new API. However for the rx_work_tasklet only the
> type of the callback was changed from
> void _rtl_rx_work(unsigned long data)
> to
> void _rtl_rx_work(struct tasklet_struct *t).
>
> The initialization of rx_work_tasklet was still open-coded and the
> function pointer just cast into the old type, and hence nothing sets
> rx_work_tasklet.use_callback = true and the callback was still called as
>
> t->func(t->data);
>
> with uninitialized/zero t->data.
>
> Commit 6b8c7574a5f8 changed the casting of _rtl_rx_work a bit and
> initialized t->data to a pointer to the tasklet cast to an unsigned
> long.
>
> This way calling t->func(t->data) might actually work through all the
> casting, but it still doesn't update the code to use the new tasklet
> API.
>
> Let's use the new tasklet_setup to initialize rx_work_tasklet properly
> and set rx_work_tasklet.use_callback = true so that the callback is
> called as
>
> t->callback(t);
>
> without all the casting.
>
> Signed-off-by: Emil Renner Berthing <kernel@xxxxxxxx>
> Acked-by: Willem de Bruijn <willemb@xxxxxxxxxx>
Patch applied to wireless-drivers-next.git, thanks.
ca04217add8e rtlwifi: use tasklet_setup to initialize rx_work_tasklet
--
https://patchwork.kernel.org/project/linux-wireless/patch/20210126171550.3066-1-kernel@xxxxxxxx/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches