10077 usr/src/uts/ Makefile changes for smatch

*** 22,33 ****
  # uts/intel/mii/Makefile
  #
  # Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
! #       This makefile drives the production of the mii support module.
! #
  
  #
  #       Path to the base of the uts directory tree (usually /usr/src/uts).
  #
  UTSBASE = ../..
--- 22,32 ----
  # uts/intel/mii/Makefile
  #
  # Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
! # Copyright (c) 2018, Joyent, Inc.
  
  #
  #       Path to the base of the uts directory tree (usually /usr/src/uts).
  #
  UTSBASE = ../..
*** 55,64 ****
--- 54,66 ----
  LDFLAGS         += -dy -N misc/mac
  
  CERRWARN        += -_gcc=-Wno-switch
  CERRWARN        += -_gcc=-Wno-uninitialized
  
+ # needs work
+ SMOFF += all_func_returns
+ 
  #
  #       Default build targets.
  #
  .KEEP_STATE: