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Mon, 12 Jan 2026 14:42:28 +0000 (GMT) From: Nitesh Shetty To: Jens Axboe , Keith Busch , Christoph Hellwig , Sagi Grimberg Cc: nitheshshetty@gmail.com, Nitesh Shetty , linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org Subject: [PATCH] block, nvme: remove unused dma_iova_state function parameter Date: Mon, 12 Jan 2026 20:08:08 +0530 Message-Id: <20260112143810.2046599-1-nj.shetty@samsung.com> X-Mailer: git-send-email 2.39.5 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CMS-MailID: 20260112144230epcas5p34403fd2f51e32c77ad4de7bac8c98a18 X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" CMS-TYPE: 105P cpgsPolicy: CPGSC10-542,Y X-CFilter-Loop: Reflected X-CMS-RootMailID: 20260112144230epcas5p34403fd2f51e32c77ad4de7bac8c98a18 References: DMA IOVA state is not used inside blk_rq_dma_map_iter_next Signed-off-by: Nitesh Shetty Reviewed-by: Christoph Hellwig --- block/blk-mq-dma.c | 3 +-- drivers/nvme/host/pci.c | 5 ++--- include/linux/blk-mq-dma.h | 2 +- 3 files changed, 4 insertions(+), 6 deletions(-) diff --git a/block/blk-mq-dma.c b/block/blk-mq-dma.c index 752060d7261cb..3c87779cdc19d 100644 --- a/block/blk-mq-dma.c +++ b/block/blk-mq-dma.c @@ -233,7 +233,6 @@ EXPORT_SYMBOL_GPL(blk_rq_dma_map_iter_start); * blk_rq_dma_map_iter_next - map the next DMA segment for a request * @req: request to map * @dma_dev: device to map to - * @state: DMA IOVA state * @iter: block layer DMA iterator * * Iterate to the next mapping after a previous call to @@ -248,7 +247,7 @@ EXPORT_SYMBOL_GPL(blk_rq_dma_map_iter_start); * returned in @iter.status. */ bool blk_rq_dma_map_iter_next(struct request *req, struct device *dma_dev, - struct dma_iova_state *state, struct blk_dma_iter *iter) + struct blk_dma_iter *iter) { struct phys_vec vec; =20 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, =20 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 =3D iter->addr; @@ -1010,8 +1010,7 @@ static blk_status_t nvme_pci_setup_data_sgl(struct re= quest *req, } nvme_pci_sgl_set_data(&sg_list[mapped++], iter); iod->total_len +=3D 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)); =20 nvme_pci_sgl_set_seg(&iod->cmd.common.dptr.sgl, sgl_dma, mapped); if (unlikely(iter->status)) diff --git a/include/linux/blk-mq-dma.h b/include/linux/blk-mq-dma.h index cb88fc791fbd1..214c181ff2c9c 100644 --- a/include/linux/blk-mq-dma.h +++ b/include/linux/blk-mq-dma.h @@ -28,7 +28,7 @@ struct blk_dma_iter { bool blk_rq_dma_map_iter_start(struct request *req, struct device *dma_dev, struct dma_iova_state *state, struct blk_dma_iter *iter); bool blk_rq_dma_map_iter_next(struct request *req, struct device *dma_dev, - struct dma_iova_state *state, struct blk_dma_iter *iter); + struct blk_dma_iter *iter); =20 /** * blk_rq_dma_map_coalesce - were all segments coalesced? --=20 2.39.5