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From: Leon Romanovsky <leon@kernel.org>
To: Alex Williamson <alex.williamson@redhat.com>
Cc: "Leon Romanovsky" <leonro@nvidia.com>,
	"Christoph Hellwig" <hch@lst.de>,
	"Jason Gunthorpe" <jgg@nvidia.com>,
	"Andrew Morton" <akpm@linux-foundation.org>,
	"Bjorn Helgaas" <bhelgaas@google.com>,
	"Christian König" <christian.koenig@amd.com>,
	dri-devel@lists.freedesktop.org, iommu@lists.linux.dev,
	"Jens Axboe" <axboe@kernel.dk>,
	"Jérôme Glisse" <jglisse@redhat.com>,
	"Joerg Roedel" <joro@8bytes.org>,
	kvm@vger.kernel.org, linaro-mm-sig@lists.linaro.org,
	linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-media@vger.kernel.org, linux-mm@kvack.org,
	linux-pci@vger.kernel.org,
	"Logan Gunthorpe" <logang@deltatee.com>,
	"Marek Szyprowski" <m.szyprowski@samsung.com>,
	"Robin Murphy" <robin.murphy@arm.com>,
	"Sumit Semwal" <sumit.semwal@linaro.org>,
	"Vivek Kasireddy" <vivek.kasireddy@intel.com>,
	"Will Deacon" <will@kernel.org>
Subject: [PATCH 06/10] types: move phys_vec definition to common header
Date: Wed, 23 Jul 2025 16:00:07 +0300	[thread overview]
Message-ID: <e5bec6fc13ed352e2e00f84adc414e467ea94b08.1753274085.git.leonro@nvidia.com> (raw)
In-Reply-To: <cover.1753274085.git.leonro@nvidia.com>

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 by upcoming VFIO patches for dma-buf operations.

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 eeac653e3f3bd..b0fa53c353d9d 100644
--- a/block/blk-mq-dma.c
+++ b/block/blk-mq-dma.c
@@ -5,11 +5,6 @@
 #include <linux/blk-mq-dma.h>
 #include "blk.h"
 
-struct phys_vec {
-	phys_addr_t	paddr;
-	u32		len;
-};
-
 static bool blk_map_iter_next(struct request *req, struct req_iterator *iter,
 			      struct phys_vec *vec)
 {
diff --git a/include/linux/types.h b/include/linux/types.h
index 6dfdb8e8e4c35..2bc56681b2e62 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;
+	u32		len;
+};
+
 typedef phys_addr_t resource_size_t;
 
 /*
-- 
2.50.1



  parent reply	other threads:[~2025-07-23 13:02 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-07-23 13:00 [PATCH 00/10] vfio/pci: Allow MMIO regions to be exported through dma-buf Leon Romanovsky
2025-07-23 13:00 ` [PATCH 01/10] PCI/P2PDMA: Remove redundant bus_offset from map state Leon Romanovsky
2025-07-24  7:50   ` Christoph Hellwig
2025-07-23 13:00 ` [PATCH 02/10] PCI/P2PDMA: Introduce p2pdma_provider structure for cleaner abstraction Leon Romanovsky
2025-07-24  7:51   ` Christoph Hellwig
2025-07-24  7:55     ` Leon Romanovsky
2025-07-24  7:59       ` Christoph Hellwig
2025-07-24  8:07         ` Leon Romanovsky
2025-07-27 18:51         ` Jason Gunthorpe
2025-07-29  7:52           ` Christoph Hellwig
2025-07-29  8:53             ` Leon Romanovsky
2025-07-29 10:41               ` Christoph Hellwig
2025-07-29 11:39                 ` Leon Romanovsky
2025-07-29 13:15             ` Jason Gunthorpe
2025-07-29 16:12   ` Jason Gunthorpe
2025-07-23 13:00 ` [PATCH 03/10] PCI/P2PDMA: Simplify bus address mapping API Leon Romanovsky
2025-07-24  7:52   ` Christoph Hellwig
2025-07-23 13:00 ` [PATCH 04/10] PCI/P2PDMA: Refactor to separate core P2P functionality from memory allocation Leon Romanovsky
2025-07-23 13:00 ` [PATCH 05/10] PCI/P2PDMA: Export pci_p2pdma_map_type() function Leon Romanovsky
2025-07-24  8:03   ` Christoph Hellwig
2025-07-24  8:13     ` Leon Romanovsky
2025-07-25 16:30       ` Logan Gunthorpe
2025-07-25 18:54         ` Leon Romanovsky
2025-07-25 19:12           ` Logan Gunthorpe
2025-07-27  6:01             ` Leon Romanovsky
2025-07-27 19:05         ` Jason Gunthorpe
2025-07-28 16:12           ` Logan Gunthorpe
2025-07-28 16:41             ` Leon Romanovsky
2025-07-28 17:07               ` Logan Gunthorpe
2025-07-28 23:11                 ` Jason Gunthorpe
2025-07-29 20:54                   ` Logan Gunthorpe
2025-07-29 22:14                     ` Jason Gunthorpe
2025-07-30  8:03                     ` Leon Romanovsky
2025-07-29  7:52       ` Christoph Hellwig
2025-07-29  8:45         ` Leon Romanovsky
2025-07-27 19:02     ` Jason Gunthorpe
2025-07-23 13:00 ` Leon Romanovsky [this message]
2025-07-23 13:00 ` [PATCH 07/10] vfio: Export vfio device get and put registration helpers Leon Romanovsky
2025-07-23 13:00 ` [PATCH 08/10] vfio/pci: Enable peer-to-peer DMA transactions by default Leon Romanovsky
2025-07-23 13:00 ` [PATCH 09/10] vfio/pci: Share the core device pointer while invoking feature functions Leon Romanovsky
2025-07-28 20:55   ` Alex Williamson
2025-07-29  8:39     ` Leon Romanovsky
2025-07-23 13:00 ` [PATCH 10/10] vfio/pci: Add dma-buf export support for MMIO regions Leon Romanovsky
2025-07-24  5:13   ` Kasireddy, Vivek
2025-07-24  5:44     ` Leon Romanovsky
2025-07-25  5:34       ` Kasireddy, Vivek
2025-07-27  6:16         ` Leon Romanovsky
2025-07-29 19:44   ` Robin Murphy
2025-07-29 20:13     ` Jason Gunthorpe
2025-07-30  9:32       ` Leon Romanovsky
2025-07-30 14:49       ` Robin Murphy
2025-07-30 16:01         ` Jason Gunthorpe
2025-07-30 19:58 ` [PATCH 00/10] vfio/pci: Allow MMIO regions to be exported through dma-buf Alex Williamson
2025-07-31  0:21   ` Jason Gunthorpe

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