10077 usr/src/uts/ Makefile changes for smatch

*** 8,18 ****
  # source.  A copy of the CDDL is also available via the Internet at
  # http://www.illumos.org/license/CDDL.
  #
  
  #
! # Copyright (c) 2015 Joyent, Inc.  All rights reserved.
  #
  
  #
  #       Path to the base of the uts directory tree (usually /usr/src/uts).
  #
--- 8,18 ----
  # source.  A copy of the CDDL is also available via the Internet at
  # http://www.illumos.org/license/CDDL.
  #
  
  #
! # Copyright (c) 2018, Joyent, Inc.
  #
  
  #
  #       Path to the base of the uts directory tree (usually /usr/src/uts).
  #
*** 32,41 ****
--- 32,44 ----
  #
  include $(UTSBASE)/intel/Makefile.intel
  
  CERRWARN        += -_gcc=-Wno-parentheses
  
+ # needs work
+ SMOFF += all_func_returns
+ 
  #
  #       Define targets
  #
  ALL_TARGET      = $(BINARY) $(SRC_CONFILE)
  LINT_TARGET     = $(MODULE).lint