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[76.146.13.146]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-2f8489d3707sm4072471a91.23.2025.01.31.11.29.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 31 Jan 2025 11:29:38 -0800 (PST) From: Amery Hung To: netdev@vger.kernel.org Cc: bpf@vger.kernel.org, daniel@iogearbox.net, andrii@kernel.org, alexei.starovoitov@gmail.com, martin.lau@kernel.org, kuba@kernel.org, edumazet@google.com, xiyou.wangcong@gmail.com, cong.wang@bytedance.com, jhs@mojatatu.com, sinquersw@gmail.com, toke@redhat.com, jiri@resnulli.us, stfomichev@gmail.com, ekarani.silvestre@ccc.ufcg.edu.br, yangpeihao@sjtu.edu.cn, yepeilin.cs@gmail.com, ameryhung@gmail.com, ming.lei@redhat.com, kernel-team@meta.com Subject: [PATCH bpf-next v3 14/18] bpf: net_sched: Allow writing to more Qdisc members Date: Fri, 31 Jan 2025 11:28:53 -0800 Message-ID: <20250131192912.133796-15-ameryhung@gmail.com> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20250131192912.133796-1-ameryhung@gmail.com> References: <20250131192912.133796-1-ameryhung@gmail.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Delegate: bpf@iogearbox.net From: Amery Hung Allow bpf qdisc to write to Qdisc->limit and Qdisc->q.qlen. Signed-off-by: Amery Hung --- net/sched/bpf_qdisc.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/net/sched/bpf_qdisc.c b/net/sched/bpf_qdisc.c index 2427343d8a10..b8f02ff8734e 100644 --- a/net/sched/bpf_qdisc.c +++ b/net/sched/bpf_qdisc.c @@ -68,6 +68,12 @@ 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;