> +void debug_dma_map_resource(struct device *dev, phys_addr_t addr, size_t size,
> + int direction, dma_addr_t dma_addr)
> +{
> + struct dma_debug_entry *entry;
> +
> + if (unlikely(dma_debug_disabled()))
> + return;
> +
> + entry = dma_entry_alloc();
> + if (!entry)
> + return;
> +
> + entry->type = dma_debug_resource;
> + entry->dev = dev;
> + entry->pfn = __phys_to_pfn(addr);
> + entry->offset = addr - PHYS_PFN(entry->pfn);
Is that right?
__phys_to_pfn(addr) is PHYS_PFN(addr), so what you get here is
addr - PHYS_PFN(PHYS_PFN(addr)) ?
> + entry->size = size;
> + entry->dev_addr = dma_addr;
> + entry->direction = direction;
> + entry->map_err_type = MAP_ERR_NOT_CHECKED;
> +
> + add_dma_entry(entry);
> +}
> +EXPORT_SYMBOL(debug_dma_map_resource);
> +
