diff --git a/block/blk-map.c b/block/blk-map.c
index 0022710664bc..7369aba74771 100644
--- a/block/blk-map.c
+++ b/block/blk-map.c
@@ -357,7 +357,6 @@ static void bio_copy_kern_endio_read(struct bio *bio)
  *	@rq: request to fill
  *	@data: pointer to buffer to copy
  *	@len: length in bytes
- *	@op: bio/request operation
  *	@gfp_mask: allocation flags for bio and page allocation
  *
  *	copy the kernel address into a bio suitable for io to a block
diff --git a/block/blk-mq-dma.c b/block/blk-mq-dma.c
index e0e7a18790b5..b89f4e6a17c3 100644
--- a/block/blk-mq-dma.c
+++ b/block/blk-mq-dma.c
@@ -215,7 +215,7 @@ static bool blk_dma_map_iter_start(struct request *req, struct device *dma_dev,
  * at unmap time, @iter is only needed at map time.
  *
  * Returns %false if there is no segment to map, including due to an error, or
- * %true ft it did map a segment.
+ * %true if it did map a segment.
  *
  * If a segment was mapped, the DMA address for it is returned in @iter.addr and
  * the length in @iter.len.  If no segment was mapped the status code is
@@ -245,7 +245,7 @@ EXPORT_SYMBOL_GPL(blk_rq_dma_map_iter_start);
  * arguments.
  *
  * Returns %false if there is no segment to map, including due to an error, or
- * %true ft it did map a segment.
+ * %true if it did map a segment.
  *
  * If a segment was mapped, the DMA address for it is returned in @iter.addr and
  * the length in @iter.len.  If no segment was mapped the status code is
@@ -363,7 +363,6 @@ EXPORT_SYMBOL_GPL(blk_rq_integrity_dma_map_iter_start);
  * 					 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 integrity mapping after a previous call to