mad: code cleanup

Author: redchenjs

components/mad/bit.c

@@ -215,13 +215,13 @@ unsigned short mad_bit_crc(struct mad_bitptr bitptr, unsigned int len,
   switch (len / 8) {
   case 3: crc = (crc << 8) ^
 	    unalShort(&crc_table[((crc >> 8) ^ mad_bit_read(&bitptr, 8)) & 0xff]);
-      __attribute__((fallthrough));
+	    /* fall through */
   case 2: crc = (crc << 8) ^
 	    unalShort(&crc_table[((crc >> 8) ^ mad_bit_read(&bitptr, 8)) & 0xff]);
-      __attribute__((fallthrough));
+	    /* fall through */
   case 1: crc = (crc << 8) ^
 	    unalShort(&crc_table[((crc >> 8) ^ mad_bit_read(&bitptr, 8)) & 0xff]);
-      len %= 8;
+	    len %= 8;
   case 0: break;
   }