10077 usr/src/uts/ Makefile changes for smatch

*** 21,30 ****
--- 21,31 ----
  #
  # uts/intel/icmp/Makefile
  #
  # Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
+ # Copyright (c) 2018, Joyent, Inc.
  #
  #       This makefile drives the production of the icmp IP driver
  #
  #       intel implementation architecture dependent
  #
*** 75,84 ****
--- 76,88 ----
  #
  LINTTAGS        += -erroff=E_BAD_PTR_CAST_ALIGN
  LINTTAGS        += -erroff=E_PTRDIFF_OVERFLOW
  LINTTAGS        += -erroff=E_ASSIGN_NARROW_CONV
  
+ # needs work
+ $(OBJS_DIR)/icmpddi.o := SMOFF += index_overflow
+ 
  #
  #       Default build targets.
  #
  .KEEP_STATE: