# Re: \[alsa-devel\] \[PATCH 18/18\] ALSA: pass struct device to DMA API functions

- From: Takashi Iwai \<hidden\>
- Date: 2019-02-01 13:13:08 
- List: linux-fbdev
- Page: https://ratatoskr.run/linux-fbdev/2019/02/5501350
- Thread: https://ratatoskr.run/linux-mips/2019/02/5501082/t.md

```text
On Fri, 01 Feb 2019 09:48:01 +0100,
Christoph Hellwig wrote:
> 
> The DMA API generally relies on a struct device to work properly, and
> only barely works without one for legacy reasons.  Pass the easily
> available struct device from the platform_device to remedy this.
> 
> Also use GFP_KERNEL instead of GFP_USER as the gfp_t for the memory
> allocation, as we should treat this allocation as a normal kernel one.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>

Reviewed-by: Takashi Iwai <redacted>


thanks,

Takashi
```