319 	vq->log_base = NULL;  in vhost_vq_reset()
648 static bool log_access_ok(void __user *log_base, u64 addr, unsigned long sz)  in log_access_ok()  argument
653 	if (a > ULONG_MAX - (unsigned long)log_base ||  in log_access_ok()
654 	    a + (unsigned long)log_base > ULONG_MAX)  in log_access_ok()
657 	return access_ok(VERIFY_WRITE, log_base + a,  in log_access_ok()
668 static bool vq_memory_access_ok(void __user *log_base, struct vhost_umem *umem,  in vq_memory_access_ok()  argument
686 		else if (log_all && !log_access_ok(log_base,  in vq_memory_access_ok()
721 			ok = vq_memory_access_ok(d->vqs[i]->log_base,  in memory_access_ok()
1273 			     void __user *log_base)  in vq_log_access_ok()  argument
1277 	return vq_memory_access_ok(log_base, vq->umem,  in vq_log_access_ok()
1279 		(!vq->log_used || log_access_ok(log_base, vq->log_addr,  in vq_log_access_ok()
1288 	if (!vq_log_access_ok(vq, vq->log_base))  in vhost_vq_access_ok()
1489 			    !log_access_ok(vq->log_base, a.log_guest_addr,  in vhost_vring_ioctl()
1653 				vq->log_base = base;  in vhost_dev_ioctl()
1708 static int log_write(void __user *log_base,  in log_write()  argument
1718 		u64 base = (u64)(unsigned long)log_base;  in log_write()
1743 		r = log_write(vq->log_base, log[i].addr, l);  in vhost_log_write()
1770 		log_write(vq->log_base, vq->log_addr +  in vhost_update_used_flags()
1790 		log_write(vq->log_base, vq->log_addr +  in vhost_update_avail_event()
2192 		log_write(vq->log_base,  in __vhost_add_used_n()
2235 		log_write(vq->log_base,  in vhost_add_used_n()