Re: [PATCH 2/4] dma-iommu: Add iommu_dma_opt_mapping_size()

Damien Le Moal
2022-05-23T07:33:53Z

On 2022/05/23 16:01, John Garry wrote:
> On 21/05/2022 00:33, Damien Le Moal wrote:
>
> Hi Damien,
>
>>> +unsigned long iova_rcache_range(void)
>> Why not a size_t return type ?
>
> The IOVA code generally uses unsigned long for size/range while
> dam-iommu uses size_t as appropiate, so I'm just sticking to that.

OK.

>
>>
>>> +{
>>> + return PAGE_SIZE << (IOVA_RANGE_CACHE_MAX_SIZE - 1);
>>> +}
>>> +
>
> Thanks,
> John

--
Damien Le Moal
Western Digital Research