8480 nvmeadm should ignore 0-sized namespaces by default
Reviewed by: Patrick Mooney <patrick.mooney@joyent.com>
Reviewed by: Jerry Jelinek <jerry.jelinek@joyent.com>

*** 537,547 ****
--- 537,556 ----
  
  static int
  do_list_nsid(int fd, const nvme_process_arg_t *npa)
  {
          _NOTE(ARGUNUSED(fd));
+         const uint_t format = npa->npa_idns->id_flbas.lba_format;
+         const uint_t bshift = npa->npa_idns->id_lbaf[format].lbaf_lbads;
  
+         /*
+          * Some devices have extra namespaces with illegal block sizes and
+          * zero blocks. Don't list them when verbose operation isn't requested.
+          */
+         if ((bshift < 9 || npa->npa_idns->id_nsize == 0) && verbose == 0)
+                 return (0);
+ 
          (void) printf("  %s/%s (%s): ", npa->npa_name,
              di_minor_name(npa->npa_minor),
              npa->npa_dsk != NULL ? npa->npa_dsk : "unattached");
          nvme_print_nsid_summary(npa->npa_idns);