bpf_csum_diff_proto 1997 net/core/filter.c static const struct bpf_func_proto bpf_csum_diff_proto = { bpf_csum_diff_proto 6133 net/core/filter.c return &bpf_csum_diff_proto; bpf_csum_diff_proto 6236 net/core/filter.c return &bpf_csum_diff_proto; bpf_csum_diff_proto 6392 net/core/filter.c return &bpf_csum_diff_proto;