diff options
| author | Leon Romanovsky <leonro@nvidia.com> | 2025-10-15 12:13:00 +0300 |
|---|---|---|
| committer | Marek Szyprowski <m.szyprowski@samsung.com> | 2025-10-29 10:27:31 +0100 |
| commit | 131971f67e258170c678fe572fda95f8cef88e66 (patch) | |
| tree | e4914ef78a060450005f83ca45f9cadd239b1420 /kernel/dma/mapping.c | |
| parent | 936a9f0cb16b0646143f8e05afab458adc51d0a0 (diff) | |
| download | linux-next-131971f67e258170c678fe572fda95f8cef88e66.tar.gz linux-next-131971f67e258170c678fe572fda95f8cef88e66.zip | |
dma-mapping: remove unused map_page callback
After conversion of arch code to use physical address mapping,
there are no users of .map_page() and .unmap_page() callbacks,
so let's remove them.
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/20251015-remove-map-page-v5-14-3bbfe3a25cdf@kernel.org
Diffstat (limited to 'kernel/dma/mapping.c')
| -rw-r--r-- | kernel/dma/mapping.c | 12 |
1 files changed, 0 insertions, 12 deletions
diff --git a/kernel/dma/mapping.c b/kernel/dma/mapping.c index 32a85bfdf873..37163eb49f9f 100644 --- a/kernel/dma/mapping.c +++ b/kernel/dma/mapping.c @@ -171,16 +171,6 @@ dma_addr_t dma_map_phys(struct device *dev, phys_addr_t phys, size_t size, addr = iommu_dma_map_phys(dev, phys, size, dir, attrs); else if (ops->map_phys) addr = ops->map_phys(dev, phys, size, dir, attrs); - else if (!is_mmio && ops->map_page) { - struct page *page = phys_to_page(phys); - size_t offset = offset_in_page(phys); - - /* - * The dma_ops API contract for ops->map_page() requires - * kmappable memory. - */ - addr = ops->map_page(dev, page, offset, size, dir, attrs); - } if (!is_mmio) kmsan_handle_dma(phys, size, dir); @@ -222,8 +212,6 @@ void dma_unmap_phys(struct device *dev, dma_addr_t addr, size_t size, iommu_dma_unmap_phys(dev, addr, size, dir, attrs); else if (ops->unmap_phys) ops->unmap_phys(dev, addr, size, dir, attrs); - else - ops->unmap_page(dev, addr, size, dir, attrs); trace_dma_unmap_phys(dev, addr, size, dir, attrs); debug_dma_unmap_phys(dev, addr, size, dir); } |