6152 use NULL dump segop as a shorthand for no-op

*** 100,110 ****
  /*
   * Private seg op routines.
   */
  faultcode_t segkpm_fault(struct hat *hat, struct seg *seg, caddr_t addr,
                          size_t len, enum fault_type type, enum seg_rw rw);
- static void     segkpm_dump(struct seg *);
  static void     segkpm_badop(void);
  static int      segkpm_notsup(void);
  
  #define SEGKPM_BADOP(t) (t(*)())segkpm_badop
  #define SEGKPM_NOTSUP   (int(*)())segkpm_notsup
--- 100,109 ----
*** 125,135 ****
          .getprot        = SEGKPM_BADOP(int),
          .getoffset      = SEGKPM_BADOP(u_offset_t),
          .gettype        = SEGKPM_BADOP(int),
          .getvp          = SEGKPM_BADOP(int),
          .advise         = SEGKPM_BADOP(int),
-         .dump           = segkpm_dump,
          .pagelock       = SEGKPM_NOTSUP,
          .setpagesize    = SEGKPM_BADOP(int),
          .getmemid       = SEGKPM_BADOP(int),
          .getpolicy      = SEGKPM_BADOP(lgrp_mem_policy_info_t *),
  };
--- 124,133 ----
*** 316,328 ****
  static int
  segkpm_notsup()
  {
          return (ENOTSUP);
  }
- 
- /*
-  * segkpm pages are not dumped, so we just return
-  */
- /*ARGSUSED*/
- static void
- segkpm_dump(struct seg *seg)
- {}
--- 314,318 ----