linux-kernel - [PATCH 1/2] block: remove unused dma_iova

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Message-Id: <20260112135736.1982406-1-nj.shetty@samsung.com>
Date: Mon, 12 Jan 2026 19:27:34 +0530
From: Nitesh Shetty <nj.shetty@...sung.com>
To: Jens Axboe <axboe@...nel.dk>
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 1/2] block: remove unused dma_iova_state function parameter

DMA IOVA state is not used inside blk_rq_dma_map_iter_next

Signed-off-by: Nitesh Shetty <nj.shetty@...sung.com>
---
 block/blk-mq-dma.c         | 3 +--
 include/linux/blk-mq-dma.h | 2 +-
 2 files changed, 2 insertions(+), 3 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;
 
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);
 
 /**
  * blk_rq_dma_map_coalesce - were all segments coalesced?
-- 
2.39.5