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

Leon Romanovsky
2025-11-15T16:23:08Z

From: Leon Romanovsky <leonro@nvidia.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@nvidia.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