diff mbox series

[bpf-next,v2,11/14] bpf: net_sched: Allow writing to more Qdisc members

Message ID 20241220195619.2022866-12-amery.hung@gmail.com (mailing list archive)
State New
Delegated to: BPF
Headers show
Series bpf qdisc | expand

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netdev/series_format success Posting correctly formatted
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netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
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netdev/cc_maintainers warning 4 maintainers not CCed: pabeni@redhat.com edumazet@google.com horms@kernel.org kuba@kernel.org
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netdev/source_inline success Was 0 now: 0

Commit Message

Amery Hung Dec. 20, 2024, 7:55 p.m. UTC 
From: Amery Hung <amery.hung@bytedance.com>

Allow bpf qdisc to write to Qdisc->limit and Qdisc->q.qlen.

Signed-off-by: Amery Hung <amery.hung@bytedance.com>
---
 net/sched/bpf_qdisc.c | 6 ++++++
 1 file changed, 6 insertions(+)
diff mbox series

Patch

diff --git a/net/sched/bpf_qdisc.c b/net/sched/bpf_qdisc.c
index 04ad3676448f..925624c47c3e 100644
--- a/net/sched/bpf_qdisc.c
+++ b/net/sched/bpf_qdisc.c
@@ -65,6 +65,12 @@  static int bpf_qdisc_qdisc_access(struct bpf_verifier_log *log,
 	size_t end;
 
 	switch (off) {
+	case offsetof(struct Qdisc, limit):
+		end = offsetofend(struct Qdisc, limit);
+		break;
+	case offsetof(struct Qdisc, q) + offsetof(struct qdisc_skb_head, qlen):
+		end = offsetof(struct Qdisc, q) + offsetofend(struct qdisc_skb_head, qlen);
+		break;
 	case offsetof(struct Qdisc, qstats) ... offsetofend(struct Qdisc, qstats) - 1:
 		end = offsetofend(struct Qdisc, qstats);
 		break;