I had prepared a longer mail but can't send it right now. I think the return code for the iterator should be a new type with values RADIOTAP_PARSER_OK RADIOTAP_PARSER_DONE RADIOTAP_PARSER_INVALID and RADIOTAP_PARSER_UNHANDLED instead of error codes for the latter three. Then the mac80211 code would check for while (... == _OK) and drop the packet on _INVALID. johannes - To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html