BPF_F_RECOMPUTE_CSUM 1669 net/core/filter.c if (unlikely(flags & ~(BPF_F_RECOMPUTE_CSUM | BPF_F_INVALIDATE_HASH))) BPF_F_RECOMPUTE_CSUM 1677 net/core/filter.c if (flags & BPF_F_RECOMPUTE_CSUM) BPF_F_RECOMPUTE_CSUM 1682 net/core/filter.c if (flags & BPF_F_RECOMPUTE_CSUM)