From: Yuan Chen chenyuan@kylinos.cn
Fix implicit function declaration errors in bpf_qdisc_xxx.c by adding the required kernel symbol declarations to the shared header file bpf_qdisc_common.h. This ensures all qdisc BPF programs can properly resolve these kernel functions.
The added declarations include: - bpf_qdisc_skb_drop - bpf_qdisc_bstats_update - bpf_kfree_skb - bpf_skb_get_hash - bpf_qdisc_watchdog_schedule
Using a common header prevents duplication and ensures consistency across different qdisc implementations.
Signed-off-by: Yuan Chen chenyuan@kylinos.cn --- tools/testing/selftests/bpf/progs/bpf_qdisc_common.h | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/tools/testing/selftests/bpf/progs/bpf_qdisc_common.h b/tools/testing/selftests/bpf/progs/bpf_qdisc_common.h index 3754f581b328..4c896b3e0f65 100644 --- a/tools/testing/selftests/bpf/progs/bpf_qdisc_common.h +++ b/tools/testing/selftests/bpf/progs/bpf_qdisc_common.h @@ -14,6 +14,15 @@
struct bpf_sk_buff_ptr;
+extern void bpf_qdisc_skb_drop(struct sk_buff *skb, + struct bpf_sk_buff_ptr *to_free_list) __ksym; +extern void bpf_qdisc_bstats_update(struct Qdisc *sch, + const struct sk_buff *skb) __ksym; +extern void bpf_kfree_skb(struct sk_buff *skb) __ksym; +extern u32 bpf_skb_get_hash(struct sk_buff *skb) __ksym; +extern void bpf_qdisc_watchdog_schedule(struct Qdisc *sch, u64 expire, + u64 delta_ns) __ksym; + static struct qdisc_skb_cb *qdisc_skb_cb(const struct sk_buff *skb) { return (struct qdisc_skb_cb *)skb->cb;