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

@@ -718,18 +718,18 @@
 
                         ipl_pad_to_bit_31 : 31;
 } ipsec_latch_t;
 
 #define IPLATCH_REFHOLD(ipl) { \
-        atomic_add_32(&(ipl)->ipl_refcnt, 1);           \
+        atomic_inc_32(&(ipl)->ipl_refcnt);              \
         ASSERT((ipl)->ipl_refcnt != 0);                 \
 }
 
 #define IPLATCH_REFRELE(ipl) {                          \
         ASSERT((ipl)->ipl_refcnt != 0);                         \
         membar_exit();                                          \
-        if (atomic_add_32_nv(&(ipl)->ipl_refcnt, -1) == 0)      \
+        if (atomic_dec_32_nv(&(ipl)->ipl_refcnt) == 0)  \
                 iplatch_free(ipl);                              \
 }
 
 /*
  * peer identity structure.