add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/tools/virtio/linux/dma-mapping.h
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@@ -29,4 +29,6 @@
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 #define dma_unmap_single(...) do { } while (0)
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 #define dma_unmap_page(...) do { } while (0)
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+#define dma_max_mapping_size(...) SIZE_MAX
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+
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 #endif