Man pages matching name function::sock_state_str2num in section 3stap:

function::sock_state_str2num.3stap.en	debian 10 / systemtap-doc
function::sock_state_str2num.3stap.en	debian 11 / systemtap-doc
function::sock_state_str2num.3stap.en	debian 12 / systemtap-doc