10080 smatch Makefile changes for usr/src/cmd

@@ -22,11 +22,11 @@
 #
 # Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
 # Use is subject to license terms.
 # Copyright (c) 2016, Chris Fraire <cfraire@me.com>.
 #
-# cmd/cmd-inet/usr.sbin/nwamcfg/Makefile
+# Copyright (c) 2018, Joyent, Inc.
 
 PROG=   nwamcfg
 OBJS=   nwamcfg.o nwamcfg_lex.o nwamcfg_grammar.tab.o
 
 include ../../../Makefile.cmd

@@ -42,10 +42,12 @@
 CERRWARN +=     -_gcc=-Wno-uninitialized
 CERRWARN +=     -_gcc=-Wno-unused-variable
 CERRWARN +=     -_gcc=-Wno-unused-label
 CERRWARN +=     -_gcc=-Wno-implicit-function-declaration
 
+SMOFF += all_func_returns
+
 .KEEP_STATE:
 
 all: $(PROG) 
 
 $(PROG): $(OBJS)