swiotlb_sync_single_for_device 28 arch/x86/kernel/pci-swiotlb_64.c .sync_single_for_device = swiotlb_sync_single_for_device, swiotlb_sync_single_for_device 17 include/asm-x86/swiotlb.h extern void swiotlb_sync_single_for_device(struct device *hwdev,