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

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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



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