10077 usr/src/uts/ Makefile changes for smatch

*** 21,34 ****
  
  #
  # Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
! #
! #       This makefile drives the production of the Neterion Xframe
! #       10G Ethernet (XGE) driver module in x86 systems
! #
  
  #
  #       Paths to the base of the uts directory trees
  #
  UTSBASE   = ../..
--- 21,31 ----
  
  #
  # Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
! # Copyright (c) 2018, Joyent, Inc.
  
  #
  #       Paths to the base of the uts directory trees
  #
  UTSBASE   = ../..
*** 71,80 ****
--- 68,80 ----
  
  CERRWARN        += -_gcc=-Wno-parentheses
  CERRWARN        += -_gcc=-Wno-unused-label
  CERRWARN        += -_gcc=-Wno-type-limits
  
+ # needs work
+ SMOFF += all_func_returns
+ 
  #
  #
  #       Default build targets.
  #
  .KEEP_STATE: