ETH_RSS_HASH_FUNCS_COUNT
if (rxfh->hfunc >= 1 << ETH_RSS_HASH_FUNCS_COUNT)
rss_hash_func_strings[ETH_RSS_HASH_FUNCS_COUNT][ETH_GSTRING_LEN] = {
rss_hash_func_strings[ETH_RSS_HASH_FUNCS_COUNT][ETH_GSTRING_LEN];