void arch_sync_dma_for_cpu()

in mm/dma-mapping.c [45:61]

• 16 lines of code
• 4 McCabe index (conditional complexity)

void arch_sync_dma_for_cpu(phys_addr_t paddr, size_t size,
		enum dma_data_direction dir)
{
	void *vaddr = phys_to_virt(paddr);

	switch (dir) {
	case DMA_BIDIRECTIONAL:
	case DMA_FROM_DEVICE:
		invalidate_dcache_range((unsigned long)vaddr,
			(unsigned long)(vaddr + size));
		break;
	case DMA_TO_DEVICE:
		break;
	default:
		BUG();
	}
}