Re: [RFC 1/6] s390/ism: Set DMA coherent mask

[Niklas Schnelle]

On Thu, 2022-10-20 at 01:07 -0700, Christoph Hellwig wrote:
> On Wed, Oct 19, 2022 at 04:44:30PM +0200, Niklas Schnelle wrote:
> >  	if (ret)
> >  		goto err_resource;
> >  
> > +	ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
> 
> Nit:  but you could also just replace the call to dma_set_mask abobe with
> a call to dma_set_mask_and_coherent.

That makes sense, thanks. Will be added for v2. Also obviously this
change is only a prerequisite and could be applied separately, the
changed coherent mask won't affect use with the existing DMA
implementation.