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

@@ -351,11 +351,11 @@
  * 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); \
+        atomic_inc_32(&(ipsa)->ipsa_refcnt);    \
         ASSERT((ipsa)->ipsa_refcnt != 0);       \
 }
 
 /*
  * Decrement the reference count on the SA.

@@ -366,11 +366,11 @@
  */
 
 #define IPSA_REFRELE(ipsa) {                                    \
         ASSERT((ipsa)->ipsa_refcnt != 0);                       \
         membar_exit();                                          \
-        if (atomic_add_32_nv(&(ipsa)->ipsa_refcnt, -1) == 0)    \
+        if (atomic_dec_32_nv(&(ipsa)->ipsa_refcnt) == 0)        \
                 ((ipsa)->ipsa_freefunc)(ipsa);                  \
 }
 
 /*
  * Security association hash macros and definitions.  For now, assume the