xdp_del_sk_umem    18 net/xdp/xdp_umem.h void xdp_del_sk_umem(struct xdp_umem *umem, struct xdp_sock *xs);
xdp_del_sk_umem   487 net/xdp/xsk.c  	xdp_del_sk_umem(xs->umem, xs);