+int ib_get_cached_lmc(struct ib_device *device,
+ u8 port_num,
+ u8 *lmc)
+{
+ unsigned long flags;
+ int ret = 0;
+
+ if (port_num < start_port(device) || port_num > end_port(device))
+ return -EINVAL;
+
+ read_lock_irqsave(&device->cache.lock, flags);
+ *lmc = device->cache.lmc_cache[port_num - start_port(device)];
+ read_unlock_irqrestore(&device->cache.lock, flags);
+
+ return ret;
+}
+EXPORT_SYMBOL(ib_get_cached_lmc);
+