netdev - [PATCH bpf-next 1/2] bpf: Emit struct bpf_xdp

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Message-ID: <20250925170013.1752561-1-ameryhung@gmail.com>
Date: Thu, 25 Sep 2025 10:00:12 -0700
From: Amery Hung <ameryhung@...il.com>
To: bpf@...r.kernel.org
Cc: netdev@...r.kernel.org,
	alexei.starovoitov@...il.com,
	andrii@...nel.org,
	daniel@...earbox.net,
	martin.lau@...nel.org,
	kernel-team@...a.com
Subject: [PATCH bpf-next 1/2] bpf: Emit struct bpf_xdp_sock type in vmlinux BTF

Similar to other BPF UAPI struct, force emit BTF of struct bpf_xdp_sock
so that it is defined in vmlinux.h.

In a later patch, a selftest will use vmlinux.h to get the definition of
struct bpf_xdp_sock instead of bpf.h.

Signed-off-by: Amery Hung <ameryhung@...il.com>
---
 net/core/filter.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/core/filter.c b/net/core/filter.c
index b20d59bb19b8..2af0a5f1d748 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -7439,6 +7439,8 @@ u32 bpf_xdp_sock_convert_ctx_access(enum bpf_access_type type,
 				      offsetof(struct xdp_sock, FIELD)); \
 	} while (0)
 
+	BTF_TYPE_EMIT(struct bpf_xdp_sock);
+
 	switch (si->off) {
 	case offsetof(struct bpf_xdp_sock, queue_id):
 		BPF_XDP_SOCK_GET(queue_id);
-- 
2.47.3