10686 Debug macros causes smatch issues

*** 20,29 ****
--- 20,33 ----
   */
  /*
   * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
   */
  
+ /*
+  * Copyright 2019, Joyent, Inc.
+  */
+ 
  #ifndef _SYS_PCIEB_H
  #define _SYS_PCIEB_H
  
  #ifdef  __cplusplus
  extern "C" {
*** 31,41 ****
  
  #if defined(DEBUG)
  #define PCIEB_DEBUG pcieb_dbg
  extern void pcieb_dbg(uint_t bit, dev_info_t *dip, char *fmt, ...);
  #else /* DEBUG */
! #define PCIEB_DEBUG 0 &&
  #endif /* DEBUG */
  
  typedef enum {  /* same sequence as pcieb_debug_sym[] */
          /*  0 */ DBG_ATTACH,
          /*  1 */ DBG_PWR,
--- 35,45 ----
  
  #if defined(DEBUG)
  #define PCIEB_DEBUG pcieb_dbg
  extern void pcieb_dbg(uint_t bit, dev_info_t *dip, char *fmt, ...);
  #else /* DEBUG */
! #define PCIEB_DEBUG(...)
  #endif /* DEBUG */
  
  typedef enum {  /* same sequence as pcieb_debug_sym[] */
          /*  0 */ DBG_ATTACH,
          /*  1 */ DBG_PWR,