"H. Nikolaus Schaller" <hns@xxxxxxxxxxxxx> wrote:
> With introduction of vmap'ed stacks, stack parameters can no
> longer be used for DMA and now leads to kernel panic.
>
> It happens at several places for the wl1251 (e.g. when
> accessed through SDIO) making it unuseable on e.g. the
> OpenPandora.
>
> We solve this by allocating temporary buffers or use wl1251_read32().
>
> Tested on v5.18-rc5 with OpenPandora.
>
> Fixes: a1c510d0adc6 ("ARM: implement support for vmap'ed stacks")
> Signed-off-by: H. Nikolaus Schaller <hns@xxxxxxxxxxxxx>
Patch applied to wireless-next.git, thanks.
454744754cbf wl1251: dynamically allocate memory used for DMA
--
https://patchwork.kernel.org/project/linux-wireless/patch/1676021ae8b6d7aada0b1806fed99b1b8359bdc4.1651495112.git.hns@xxxxxxxxxxxxx/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
