Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/include/net/smc.h b/include/net/smc.h
index 9ef49f8..bd9c0fb 100644
--- a/include/net/smc.h
+++ b/include/net/smc.h
@@ -74,6 +74,7 @@
 	struct list_head vlan;
 	struct workqueue_struct *event_wq;
 	u8 pnetid[SMC_MAX_PNETID_LEN];
+	bool pnetid_by_user;
 };
 
 struct smcd_dev *smcd_alloc_dev(struct device *parent, const char *name,