323 	vq->log_base = NULL;  in vhost_vq_reset()
717 static bool log_access_ok(void __user *log_base, u64 addr, unsigned long sz)  in log_access_ok()  argument
722 	if (a > ULONG_MAX - (unsigned long)log_base ||  in log_access_ok()
723 	    a + (unsigned long)log_base > ULONG_MAX)  in log_access_ok()
726 	return access_ok(log_base + a,  in log_access_ok()
743 static bool vq_memory_access_ok(void __user *log_base, struct vhost_iotlb *umem,  in vq_memory_access_ok()  argument
760 		else if (log_all && !log_access_ok(log_base,  in vq_memory_access_ok()
795 			ok = vq_memory_access_ok(d->vqs[i]->log_base,  in memory_access_ok()
1397 				  void __user *log_base,  in vq_log_used_access_ok()  argument
1406 	return !log_used || log_access_ok(log_base, log_addr,  in vq_log_used_access_ok()
1413 			     void __user *log_base)  in vq_log_access_ok()  argument
1415 	return vq_memory_access_ok(log_base, vq->umem,  in vq_log_access_ok()
1417 		vq_log_used_access_ok(vq, log_base, vq->log_used, vq->log_addr);  in vq_log_access_ok()
1424 	if (!vq_log_access_ok(vq, vq->log_base))  in vhost_vq_access_ok()
1556 		if (!vq_log_used_access_ok(vq, vq->log_base,  in vhost_vring_set_addr()
1800 				vq->log_base = base;  in vhost_dev_ioctl()
1854 static int log_write(void __user *log_base,  in log_write()  argument
1864 		u64 base = (u64)(unsigned long)log_base;  in log_write()
1900 			r = log_write(vq->log_base,  in log_write_hva()
1925 		return log_write(vq->log_base, vq->log_addr + used_offset, len);  in log_used()
1962 		r = log_write(vq->log_base, log[i].addr, l);  in vhost_log_write()