diff options
Diffstat (limited to 'net/sched/cls_bpf.c')
| -rw-r--r-- | net/sched/cls_bpf.c | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/net/sched/cls_bpf.c b/net/sched/cls_bpf.c index 7d9241545188..d6c0a0b44afb 100644 --- a/net/sched/cls_bpf.c +++ b/net/sched/cls_bpf.c @@ -307,14 +307,11 @@ static int cls_bpf_modify_existing(struct net *net, struct tcf_proto *tp, { bool is_bpf, is_ebpf, have_exts = false; struct tcf_exts exts; - u32 classid; int ret; is_bpf = tb[TCA_BPF_OPS_LEN] && tb[TCA_BPF_OPS]; is_ebpf = tb[TCA_BPF_FD]; - - if ((!is_bpf && !is_ebpf) || (is_bpf && is_ebpf) || - !tb[TCA_BPF_CLASSID]) + if ((!is_bpf && !is_ebpf) || (is_bpf && is_ebpf)) return -EINVAL; tcf_exts_init(&exts, TCA_BPF_ACT, TCA_BPF_POLICE); @@ -322,7 +319,6 @@ static int cls_bpf_modify_existing(struct net *net, struct tcf_proto *tp, if (ret < 0) return ret; - classid = nla_get_u32(tb[TCA_BPF_CLASSID]); if (tb[TCA_BPF_FLAGS]) { u32 bpf_flags = nla_get_u32(tb[TCA_BPF_FLAGS]); @@ -334,7 +330,6 @@ static int cls_bpf_modify_existing(struct net *net, struct tcf_proto *tp, have_exts = bpf_flags & TCA_BPF_FLAG_ACT_DIRECT; } - prog->res.classid = classid; prog->exts_integrated = have_exts; ret = is_bpf ? cls_bpf_prog_from_ops(tb, prog) : @@ -344,9 +339,12 @@ static int cls_bpf_modify_existing(struct net *net, struct tcf_proto *tp, return ret; } - tcf_bind_filter(tp, &prog->res, base); - tcf_exts_change(tp, &prog->exts, &exts); + if (tb[TCA_BPF_CLASSID]) { + prog->res.classid = nla_get_u32(tb[TCA_BPF_CLASSID]); + tcf_bind_filter(tp, &prog->res, base); + } + tcf_exts_change(tp, &prog->exts, &exts); return 0; } @@ -479,7 +477,8 @@ static int cls_bpf_dump(struct net *net, struct tcf_proto *tp, unsigned long fh, if (nest == NULL) goto nla_put_failure; - if (nla_put_u32(skb, TCA_BPF_CLASSID, prog->res.classid)) + if (prog->res.classid && + nla_put_u32(skb, TCA_BPF_CLASSID, prog->res.classid)) goto nla_put_failure; if (cls_bpf_is_ebpf(prog)) |