do_usercopy_stack  282 drivers/misc/lkdtm/usercopy.c 	do_usercopy_stack(true, true);
do_usercopy_stack  287 drivers/misc/lkdtm/usercopy.c 	do_usercopy_stack(false, true);
do_usercopy_stack  292 drivers/misc/lkdtm/usercopy.c 	do_usercopy_stack(true, false);