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