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

*** 121,138 ****
          char *name;
          uint16_t kssl_suites[CIPHER_SUITE_COUNT];
  } mech_to_cipher_t;
  
  #define KSSL_ENTRY_REFHOLD(kssl_entry) {                                \
!         atomic_add_32(&(kssl_entry)->ke_refcnt, 1);                     \
          ASSERT((kssl_entry)->ke_refcnt != 0);                           \
  }
  
  #define KSSL_ENTRY_REFRELE(kssl_entry) {                                \
          ASSERT((kssl_entry)->ke_refcnt != 0);                           \
          membar_exit();                                                  \
!         if (atomic_add_32_nv(&(kssl_entry)->ke_refcnt, -1) == 0) {      \
                  kssl_free_entry((kssl_entry));                          \
          }                                                               \
  }
  
  #define CRYPTO_ERR(r) ((r) != CRYPTO_SUCCESS && (r) != CRYPTO_QUEUED)
--- 121,138 ----
          char *name;
          uint16_t kssl_suites[CIPHER_SUITE_COUNT];
  } mech_to_cipher_t;
  
  #define KSSL_ENTRY_REFHOLD(kssl_entry) {                                \
!         atomic_inc_32(&(kssl_entry)->ke_refcnt);                        \
          ASSERT((kssl_entry)->ke_refcnt != 0);                           \
  }
  
  #define KSSL_ENTRY_REFRELE(kssl_entry) {                                \
          ASSERT((kssl_entry)->ke_refcnt != 0);                           \
          membar_exit();                                                  \
!         if (atomic_dec_32_nv(&(kssl_entry)->ke_refcnt) == 0) {  \
                  kssl_free_entry((kssl_entry));                          \
          }                                                               \
  }
  
  #define CRYPTO_ERR(r) ((r) != CRYPTO_SUCCESS && (r) != CRYPTO_QUEUED)