swiotlb_dma_mapping_error   22 arch/x86/kernel/pci-swiotlb_64.c 	.mapping_error = swiotlb_dma_mapping_error,
swiotlb_dma_mapping_error   38 include/asm-x86/swiotlb.h extern int swiotlb_dma_mapping_error(struct device *hwdev, dma_addr_t dma_addr);