10077 usr/src/uts/ Makefile changes for smatch

*** 20,32 ****
  #
  #
  # Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
! #
! #       This makefile drives the production of the ehci driver kernel module.
! #
  
  #
  #       Path to the base of the uts directory tree (usually /usr/src/uts).
  #
  UTSBASE = ../..
--- 20,30 ----
  #
  #
  # Copyright 2008 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 = ../..
*** 46,55 ****
--- 44,56 ----
  include $(UTSBASE)/intel/Makefile.intel
  
  CERRWARN        += -_gcc=-Wno-uninitialized
  CERRWARN        += -_gcc=-Wno-switch
  
+ # needs work
+ SMOFF += deref_check,shift_to_zero
+ 
  #
  # depends on misc/usba
  #
  LDFLAGS         += -dy -Nmisc/usba