if ((curfragnum+1) == pattrib->nr_frags) {      /* 4 the last fragment */
                                        length = pattrib->last_txcmdsz-pattrib->hdrlen-pattrib->iv_len-pattrib->icv_len;
-                                       *((__le32 *)crc) = ~crc32_le(~0, payload, length);/* modified by Amy*/
+                                       *((__le32 *)crc) = ~crc32_le(~0, payload, length);
 
                                        arc4_setkey(&mycontext, rc4key, 16);
                                        arc4_crypt(&mycontext, payload, payload, length);
 
                                } else {
                                        length = pxmitpriv->frag_len-pattrib->hdrlen-pattrib->iv_len-pattrib->icv_len;
-                                       *((__le32 *)crc) = ~crc32_le(~0, payload, length);/* modified by Amy*/
+                                       *((__le32 *)crc) = ~crc32_le(~0, payload, length);
+
                                        arc4_setkey(&mycontext, rc4key, 16);
                                        arc4_crypt(&mycontext, payload, payload, length);
                                        arc4_crypt(&mycontext, payload + length, crc, 4);