free_irq(host->irq, host);#ifdefined(CONFIG_ARM)dma_free_writecombine(&pdev->dev, BUFFER_SIZE, host->virt_base, host->phys_base);#elifdefined(CONFIG_X86) || defined(CONFIG_MIPS)dma_free_coherent(NULL, BUFFER_SIZE, host->virt_base, host->phys_base);#else#errorNOT SUPPORTED#endifmmc...