diff options
| author | Leon Romanovsky <leonro@nvidia.com> | 2025-09-09 16:27:36 +0300 |
|---|---|---|
| committer | Marek Szyprowski <m.szyprowski@samsung.com> | 2025-09-12 00:18:20 +0200 |
| commit | 6eb1e769b2c13a33cb2ca694454a7561d3d72c0a (patch) | |
| tree | 1684e1a249f0ea207f9f5b2a097f08a63e641148 /kernel | |
| parent | e53d29f957b36ba1666331956c6ccb047bb157d2 (diff) | |
kmsan: convert kmsan_handle_dma to use physical addresses
Convert the KMSAN DMA handling function from page-based to physical
address-based interface.
The refactoring renames kmsan_handle_dma() parameters from accepting
(struct page *page, size_t offset, size_t size) to (phys_addr_t phys,
size_t size). The existing semantics where callers are expected to
provide only kmap memory is continued here.
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://lore.kernel.org/r/3557cbaf66e935bc794f37d2b891ef75cbf2c80c.1757423202.git.leonro@nvidia.com
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/dma/mapping.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/dma/mapping.c b/kernel/dma/mapping.c index 3ac7d15e095f..e47bcf7cc43d 100644 --- a/kernel/dma/mapping.c +++ b/kernel/dma/mapping.c @@ -172,7 +172,8 @@ dma_addr_t dma_map_page_attrs(struct device *dev, struct page *page, addr = iommu_dma_map_phys(dev, phys, size, dir, attrs); else addr = ops->map_page(dev, page, offset, size, dir, attrs); - kmsan_handle_dma(page, offset, size, dir); + + kmsan_handle_dma(phys, size, dir); trace_dma_map_phys(dev, phys, addr, size, dir, attrs); debug_dma_map_phys(dev, phys, size, dir, addr, attrs); |