net/xfrm/xfrm_iptfs.c:628: warning: No description found for return value of 'iptfs_input'
net/xfrm/xfrm_iptfs.c:875: warning: No description found for return value of 'iptfs_drop_timer'
net/xfrm/xfrm_iptfs.c:628: warning: No description found for return value of 'iptfs_input'
net/xfrm/xfrm_iptfs.c:959: warning: No description found for return value of 'iptfs_drop_timer'