# Re: \[PATCH 03/18\] net: caif: pass struct device to DMA API functions

- From: Christoph Hellwig \<hch@lst.de\>
- Date: 2019-02-01 16:10:50 
- List: netdev
- Page: https://ratatoskr.run/netdev/2019/02/5501530
- Thread: https://ratatoskr.run/linux-mips/2019/02/5501082/t.md

```text
On Fri, Feb 01, 2019 at 01:53:09PM +0000, Robin Murphy wrote:
>>   #define LOW_WATER_MARK   100
>>   #define HIGH_WATER_MARK  (LOW_WATER_MARK*5)
>>   -#ifdef CONFIG_UML
>> +#ifdef CONFIG_HAS_DMA
>
> #ifndef, surely?

Indeed.
```