net/xfrm/xfrm_iptfs.c:924: warning: No description found for return value of 'iptfs_input'
net/xfrm/xfrm_iptfs.c:1275: warning: No description found for return value of 'iptfs_drop_timer'
net/xfrm/xfrm_iptfs.c:1656: warning: No description found for return value of 'iptfs_drop_timer'