On Sun, May 31, 2026 at 05:36:31PM +0800, Guanghui Feng wrote: > @@ -159,45 +164,51 @@ static __always_inline int __do_iova_to_phys(struct > pt_range *range, void *arg, > case PT_ENTRY_TABLE: > return pt_descend(&pts, arg, descend_fn); > case PT_ENTRY_OA: > - *res = pt_entry_oa_exact(&pts); > + data->phys = pt_entry_oa_exact(&pts); > + data->length = BIT(pt_entry_oa_lg2sz(&pts));
BIT is the wrong function, it uses the wrong type. log2_to_int() is type'd properly This also needs to keep walking and accumulating length for consecutive PTEs until it reaches a non-contiguity. The other drivers don't need to have that complexity. Jason
