[PATCH 4/5] dma-direct: implement complete bus_dma_mask handling

[Christoph Hellwig]

On Thu, Sep 27, 2018 at 05:14:56PM +0100, Robin Murphy wrote:
>> This just seemed more readable to me than min_not_zero, but if others
>> prefer min_not_zero I can switch.
>
> Nah, just checking whether there were any intentionally different 
> assumptions compared to the couple of other places in the patch where 
> min_not_zero() *is* used. If it's purely a style thing then no worries 
> (personally I'd have written it yet another way anyway).

I'm curious: how would you have written it?