10077 usr/src/uts/ Makefile changes for smatch

*** 22,35 ****
  #
  # Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  # Copyright (c) 2011 Bayard G. Bell. All rights reserved.
  #
! #       This makefile drives the production of the sd
! #       kernel module.
! #
! #
  
  #
  #       Path to the base of the uts directory tree (usually /usr/src/uts).
  #
  UTSBASE = ../..
--- 22,32 ----
  #
  # Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  # Copyright (c) 2011 Bayard G. Bell. All rights reserved.
  #
! # Copyright (c) 2018, Joyent, Inc.
  
  #
  #       Path to the base of the uts directory tree (usually /usr/src/uts).
  #
  UTSBASE = ../..
*** 72,81 ****
--- 69,81 ----
  LINTTAGS        += -erroff=E_BAD_PTR_CAST_ALIGN
  LINTTAGS        += -erroff=E_STATIC_UNUSED
  LINTTAGS        += -erroff=E_PTRDIFF_OVERFLOW
  LINTTAGS        += -erroff=E_ASSIGN_NARROW_CONV
  
+ # needs work
+ SMOFF += index_overflow,shift_to_zero,signed
+ 
  #
  # Depends on scsi and cmlb
  #
  LDFLAGS         += -dy -N misc/scsi -N misc/cmlb