if ((base & (PAGE_SIZE - 1)) || (size & (PAGE_SIZE - 1))) { printk(KERN_INFO "mtrr: size and base must be multiples of 4 kiB\n"); printk(KERN_DEBUG "mtrr: size: 0x%lx  base: 0x%lx\n", size, base);
if (mtrr_check(base, size))
mtrr_del(int reg, unsigned long base, unsigned long size){	if ((base & (PAGE_SIZE - 1)) || (size & (PAGE_SIZE - 1))) {		printk(KERN_INFO "mtrr: size and base must be multiples of 4 kiB\n");		printk(KERN_DEBUG "mtrr: size: 0x%lx  base: 0x%lx\n", size, base);		return -EINVAL;	}	return mtrr_del_page(reg, base >> PAGE_SHIFT, size >> PAGE_SHIFT);}