10077 usr/src/uts/ Makefile changes for smatch

*** 22,32 ****
  # uts/intel/ac97/Makefile
  #
  # Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
! #       This makefile drives the production of the ac97 support module.
  #
  
  #
  #       Path to the base of the uts directory tree (usually /usr/src/uts).
  #
--- 22,32 ----
  # uts/intel/ac97/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).
  #
*** 52,61 ****
--- 52,64 ----
  LINT_TARGET     = $(MODULE).lint
  INSTALL_TARGET  = $(BINARY) $(ROOTMODULE)
  
  LDFLAGS         += -dy -Ndrv/audio
  
+ # needs work
+ $(OBJS_DIR)/ac97.o := SMOFF += index_overflow
+ 
  #
  #       Default build targets.
  #
  .KEEP_STATE: