10080 smatch Makefile changes for usr/src/cmd

@@ -21,12 +21,11 @@
 #
 # Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
 # Use is subject to license terms.
 # Copyright (c) 2013 Andrew Stormont.  All rights reserved.
 #
-# cmd/sa/Makefile
-#
+# Copyright (c) 2018, Joyent, Inc.
 
 MANIFEST =      sar.xml
 SVCMETHOD =     svc-sar
 
 include ../Makefile.cmd

@@ -34,10 +33,12 @@
 ROOTMANIFESTDIR = $(ROOTSVCSYSTEM)
 
 CERRWARN +=     -_gcc=-Wno-parentheses
 CERRWARN +=     -_gcc=-Wno-uninitialized
 
+SMOFF += all_func_returns
+
 GREP=           grep
 
 SADC=           sadc
 SAR=            sar
 TIMEX=          timex