access_ok() compatibility for kernel < 5.0.0
access_ok() compatibility for kernel < 5.0.0

chenm001/connectal,chenm001/connectal,cambridgehackers/connectal,cambridgehackers/connectal,cambridgehackers/connectal,cambridgehackers/connectal,cambridgehackers/connectal,chenm001/connectal,chenm001/connectal,chenm001/connectal