NEX-18699 libfmd_snmp needs to prevent double loading
Reviewed by: Joyce McIntosh <joyce.mcintosh@nexenta.com>
Reviewed by: Cynthia Eastham <cynthia.eastham@nexenta.com>
NEX-17796 libfmd_snmp performance is awful
Reviewed by: Cynthia Eastham <cynthia.eastham@nexenta.com>
Reviewed by: Evan Layton <evan.layton@nexenta.com>
Reviewed by: Rick McNeal <rick.mcneal@nexenta.com>

*** 35,45 ****
  
  static const sunFm_table_t sun_fm_tables[] = {
          TABLE_REG(sunFmModuleTable),
          TABLE_REG(sunFmResourceTable),
          TABLE_REG(sunFmProblemTable),
-         TABLE_REG(sunFmFaultEventTable),
          TABLE_NULL
  };
  
  /*
   * This is our entry point for initialization by the agent, which
--- 35,44 ----
*** 47,59 ****
--- 46,62 ----
   * by the agent API.
   */
  int
  init_sunFM(void)
  {
+         static int              once = 0;
          int                     max_err = MIB_REGISTERED_OK;
          const sunFm_table_t     *table;
  
+         if (once != 0)
+                 return (MIB_DUPLICATE_REGISTRATION);
+ 
          for (table = sun_fm_tables; table->t_name != NULL; table++) {
                  int err = table->t_init();
  
                  switch (err) {
                  case MIB_REGISTERED_OK:
*** 78,84 ****
--- 81,88 ----
  
                  if (err > max_err)
                          max_err = err;
          }
  
+         once = 1;
          return (max_err);
  }