10077 usr/src/uts/ Makefile changes for smatch

*** 22,35 ****
  # uts/intel/arp/Makefile
  #
  # Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
! #       This makefile drives the production of the arp driver kernel module.
! #
! #       intel implementation architecture dependent
! #
  
  #
  #       Path to the base of the uts directory tree (usually /usr/src/uts).
  #
  UTSBASE = ../..
--- 22,32 ----
  # uts/intel/arp/Makefile
  #
  # Copyright 2009 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 = ../..
*** 74,83 ****
--- 71,83 ----
  # Please do not carry these forward to new Makefiles.
  #
  LINTTAGS        += -erroff=E_BAD_PTR_CAST_ALIGN
  LINTTAGS        += -erroff=E_ASSIGN_NARROW_CONV
  
+ # false positive
+ SMOFF += index_overflow
+ 
  #
  #       Default build targets.
  #
  .KEEP_STATE: