+static bool ufshpb_test_ppn_dirty(struct ufshpb_lu *hpb, int rgn_idx,
+                                  int srgn_idx, int srgn_offset, int cnt)
+{
+       struct ufshpb_region *rgn;
+       struct ufshpb_subregion *srgn;
+       int bitmap_len = hpb->entries_per_srgn;
+       int bit_len;
+
+next_srgn:
+       rgn = hpb->rgn_tbl + rgn_idx;
+       srgn = rgn->srgn_tbl + srgn_idx;
+
+       if (!ufshpb_is_valid_srgn(rgn, srgn))
+               return true;

The subregion is changing its state to issued, only in ufshpb_issue_map_req.
Although you already know that those physical addresses are no longer valid in ufshpb_update_active_info.
Can we mark that this subregion is no longer valid earlier, so not to keep sending faulty HPB-READ to that subregion?

Thanks,
Avri