5045 use atomic_{inc,dec}_* instead of atomic_add_*

*** 351,361 ****
   * a reference count of 1 (for the table's pointer), plus 1 more for every
   * pointer that is referencing the ipsa_t.
   */
  
  #define IPSA_REFHOLD(ipsa) {                    \
!         atomic_add_32(&(ipsa)->ipsa_refcnt, 1); \
          ASSERT((ipsa)->ipsa_refcnt != 0);       \
  }
  
  /*
   * Decrement the reference count on the SA.
--- 351,361 ----
   * a reference count of 1 (for the table's pointer), plus 1 more for every
   * pointer that is referencing the ipsa_t.
   */
  
  #define IPSA_REFHOLD(ipsa) {                    \
!         atomic_inc_32(&(ipsa)->ipsa_refcnt);    \
          ASSERT((ipsa)->ipsa_refcnt != 0);       \
  }
  
  /*
   * Decrement the reference count on the SA.
*** 366,376 ****
   */
  
  #define IPSA_REFRELE(ipsa) {                                    \
          ASSERT((ipsa)->ipsa_refcnt != 0);                       \
          membar_exit();                                          \
!         if (atomic_add_32_nv(&(ipsa)->ipsa_refcnt, -1) == 0)    \
                  ((ipsa)->ipsa_freefunc)(ipsa);                  \
  }
  
  /*
   * Security association hash macros and definitions.  For now, assume the
--- 366,376 ----
   */
  
  #define IPSA_REFRELE(ipsa) {                                    \
          ASSERT((ipsa)->ipsa_refcnt != 0);                       \
          membar_exit();                                          \
!         if (atomic_dec_32_nv(&(ipsa)->ipsa_refcnt) == 0)        \
                  ((ipsa)->ipsa_freefunc)(ipsa);                  \
  }
  
  /*
   * Security association hash macros and definitions.  For now, assume the