linux-kernel - [PATCH 2/2] types: move phys_vec definition to common header

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Message-ID: <20251115-nvme-phys-types-v1-2-c0f2e5e9163d@kernel.org>
Date: Sat, 15 Nov 2025 18:22:46 +0200
From: Leon Romanovsky <leon@...nel.org>
To: Jens Axboe <axboe@...nel.dk>,
	Keith Busch <kbusch@...nel.org>,
	Christoph Hellwig <hch@....de>,
	Sagi Grimberg <sagi@...mberg.me>
Cc: linux-block@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-nvme@...ts.infradead.org
Subject: [PATCH 2/2] types: move phys_vec definition to common header

From: Leon Romanovsky <leonro@...dia.com>

Move the struct phys_vec definition from block/blk-mq-dma.c to
include/linux/types.h to make it available for use across the kernel.

The phys_vec structure represents a physical address range with a
length, which is used by the new physical address-based DMA mapping
API. This structure is already used by the block layer and will be
needed for DMA phys API users.

Moving this definition to types.h provides a centralized location
for this common data structure and eliminates code duplication
across subsystems that need to work with physical address ranges.

Signed-off-by: Leon Romanovsky <leonro@...dia.com>
---
 block/blk-mq-dma.c    | 5 -----
 include/linux/types.h | 5 +++++
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/block/blk-mq-dma.c b/block/blk-mq-dma.c
index cc3e2548cc30..ba7e77bbe7fa 100644
--- a/block/blk-mq-dma.c
+++ b/block/blk-mq-dma.c
@@ -6,11 +6,6 @@
 #include <linux/blk-mq-dma.h>
 #include "blk.h"
 
-struct phys_vec {
-	phys_addr_t	paddr;
-	size_t		len;
-};
-
 static bool __blk_map_iter_next(struct blk_map_iter *iter)
 {
 	if (iter->iter.bi_size)
diff --git a/include/linux/types.h b/include/linux/types.h
index 6dfdb8e8e4c3..6cc2d7cba9b3 100644
--- a/include/linux/types.h
+++ b/include/linux/types.h
@@ -170,6 +170,11 @@ typedef u64 phys_addr_t;
 typedef u32 phys_addr_t;
 #endif
 
+struct phys_vec {
+	phys_addr_t	paddr;
+	size_t		len;
+};
+
 typedef phys_addr_t resource_size_t;
 
 /*

-- 
2.51.1