fixed CSI payload bits inversion issue

openair2/NR_PHY_INTERFACE/NR_IF_Module.c

@@ -77,11 +77,11 @@ void handle_nr_rach(NR_UL_IND_t *UL_info) {
 }
 
 void reverse_n_bits(uint8_t *value, uint16_t bitlen) {
-  uint16_t bitlen = bitlen - 1;
+  uint16_t j;
   uint8_t i;
-  for(bitlen,i = 0; bitlen > i; bitlen--, i++) {
-    if(((*value>>bitlen)&1) != ((*value>>i)&1)) {
-      *value ^= (1<<bitlen);
+  for(j = bitlen - 1,i = 0; j > i; j--, i++) {
+    if(((*value>>j)&1) != ((*value>>i)&1)) {
+      *value ^= (1<<j);
       *value ^= (1<<i);
     }
   }