10077 usr/src/uts/ Makefile changes for smatch

*** 22,32 ****
  # uts/i86pc/acpidev/Makefile
  #
  # Copyright (c) 2009, Intel Corporation.
  # All rights reserved.
  #
! # Copyright 2016, Joyent, Inc.
  #
  #       This makefile drives the production of the ACPI device configuration
  #       kernel module.
  #
  #       i86pc architecture dependent
--- 22,32 ----
  # uts/i86pc/acpidev/Makefile
  #
  # Copyright (c) 2009, Intel Corporation.
  # All rights reserved.
  #
! # Copyright (c) 2018, Joyent, Inc.
  #
  #       This makefile drives the production of the ACPI device configuration
  #       kernel module.
  #
  #       i86pc architecture dependent
*** 64,73 ****
--- 64,76 ----
  
  CERRWARN        += -_gcc=-Wno-uninitialized
  CERRWARN        += -_gcc=-Wno-unused-function
  CERRWARN        += -_gcc=-Wno-type-limits
  
+ # needs work
+ SMOFF += deref_check
+ 
  #
  #       Default build targets.
  #
  .KEEP_STATE: