linux-kernel - [PATCH 2/2] nvme: blk_rq_dma_map_iter_next is no longer using iova state

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Message-Id: <20260112135736.1982406-2-nj.shetty@samsung.com>
Date: Mon, 12 Jan 2026 19:27:35 +0530
From: Nitesh Shetty <nj.shetty@...sung.com>
To: Keith Busch <kbusch@...nel.org>, Jens Axboe <axboe@...nel.dk>, Christoph
	Hellwig <hch@....de>, Sagi Grimberg <sagi@...mberg.me>
Cc: nitheshshetty@...il.com, Nitesh Shetty <nj.shetty@...sung.com>,
	linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-nvme@...ts.infradead.org
Subject: [PATCH 2/2] nvme: blk_rq_dma_map_iter_next is no longer using iova
 state

DMA IOVA state is not used inside blk_rq_dma_map_iter_next

Signed-off-by: Nitesh Shetty <nj.shetty@...sung.com>
---
 drivers/nvme/host/pci.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 3b528369f5454..065555576d2f9 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -823,7 +823,7 @@ static bool nvme_pci_prp_iter_next(struct request *req, struct device *dma_dev,
 
 	if (iter->len)
 		return true;
-	if (!blk_rq_dma_map_iter_next(req, dma_dev, &iod->dma_state, iter))
+	if (!blk_rq_dma_map_iter_next(req, dma_dev, iter))
 		return false;
 	if (!dma_use_iova(&iod->dma_state) && dma_need_unmap(dma_dev)) {
 		iod->dma_vecs[iod->nr_dma_vecs].addr = iter->addr;
@@ -1010,8 +1010,7 @@ static blk_status_t nvme_pci_setup_data_sgl(struct request *req,
 		}
 		nvme_pci_sgl_set_data(&sg_list[mapped++], iter);
 		iod->total_len += iter->len;
-	} while (blk_rq_dma_map_iter_next(req, nvmeq->dev->dev, &iod->dma_state,
-				iter));
+	} while (blk_rq_dma_map_iter_next(req, nvmeq->dev->dev, iter));
 
 	nvme_pci_sgl_set_seg(&iod->cmd.common.dptr.sgl, sgl_dma, mapped);
 	if (unlikely(iter->status))
-- 
2.39.5