RDMA/mana_ib: Fix bug in creation of dma regions

jira LE-3812
commit-author Konstantin Taranov <[email protected]>
commit e02497f

Use ib_umem_dma_offset() helper to calculate correct dma offset.

Fixes: 0266a17 ("RDMA/mana_ib: Add a driver for Microsoft Azure Network Adapter")
	Signed-off-by: Konstantin Taranov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
	Signed-off-by: Leon Romanovsky <[email protected]>
(cherry picked from commit e02497f)
	Signed-off-by: Shreeya Patel <[email protected]>
Signed-off-by: Jonathan Maple <[email protected]>
Signed-off-by: Shreeya Patel <[email protected]>
Signed-off-by: Jonathan Maple <[email protected]>
Signed-off-by: Roxana Nicolescu <[email protected]>

Author: shreeya-patel98

drivers/infiniband/hw/mana/main.c

@@ -358,7 +358,7 @@ int mana_ib_gd_create_dma_region(struct mana_ib_dev *dev, struct ib_umem *umem,
 			     sizeof(struct gdma_create_dma_region_resp));
 
 	create_req->length = umem->length;
-	create_req->offset_in_page = umem->address & (page_sz - 1);
+	create_req->offset_in_page = ib_umem_dma_offset(umem, page_sz);
 	create_req->gdma_page_type = order_base_2(page_sz) - PAGE_SHIFT;
 	create_req->page_count = num_pages_total;