net/xfrm/xfrm_iptfs.c:1135: warning: No description found for return value of 'iptfs_input'
net/xfrm/xfrm_iptfs.c:1240: warning: No description found for return value of 'iptfs_drop_timer'
net/xfrm/xfrm_iptfs.c:1608: warning: No description found for return value of 'iptfs_drop_timer'