Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
tools/virtio: stub DMA mapping functions
Add dma_map_page_attrs and dma_unmap_page_attrs stubs.
Follow the same pattern as existing DMA mapping stubs.
Created using Cursor CLI.
Message-ID: <3512df1fe0e2129ea493434a21c940c50381cc93.1764873799.git.mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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tools/virtio/linux/dma-mapping.h
+4
tools/virtio/linux/dma-mapping.h
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#define dma_free_coherent(d, s, p, h) kfree(p)
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#define dma_map_page(d, p, o, s, dir) (page_to_phys(p) + (o))
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#define dma_map_page_attrs(d, p, o, s, dir, a) (page_to_phys(p) + (o))
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#define dma_map_single(d, p, s, dir) (virt_to_phys(p))
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#define dma_map_single_attrs(d, p, s, dir, a) (virt_to_phys(p))
···
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#define dma_unmap_single(d, a, s, r) do { (void)(d); (void)(a); (void)(s); (void)(r); } while (0)
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#define dma_unmap_page(d, a, s, r) do { (void)(d); (void)(a); (void)(s); (void)(r); } while (0)
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#define dma_unmap_page_attrs(d, a, s, r, t) do { \
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(void)(d); (void)(a); (void)(s); (void)(r); (void)(t); \
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} while (0)
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#define sg_dma_address(sg) (0)
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#define sg_dma_len(sg) (0)