netdev - [PATCH bpf-next] bpf: Drop useless btf_vmlinux in bpf_tcp

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Date: Mon, 17 Jul 2023 16:32:52 +0800
From: Geliang Tang <geliang.tang@...e.com>
To: "David S. Miller" <davem@...emloft.net>,
	David Ahern <dsahern@...nel.org>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>
Cc: Geliang Tang <geliang.tang@...e.com>,
	netdev@...r.kernel.org,
	bpf@...r.kernel.org
Subject: [PATCH bpf-next] bpf: Drop useless btf_vmlinux in bpf_tcp_ca

The code using btf_vmlinux in bpf_tcp_ca is removed by the commit
'9f0265e921de ("bpf: Require only one of cong_avoid() and cong_control()
from a TCP CC")', so drop this useless btf_vmlinux declaration.

Signed-off-by: Geliang Tang <geliang.tang@...e.com>
---
 net/ipv4/bpf_tcp_ca.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/net/ipv4/bpf_tcp_ca.c b/net/ipv4/bpf_tcp_ca.c
index 4406d796cc2f..39dcccf0f174 100644
--- a/net/ipv4/bpf_tcp_ca.c
+++ b/net/ipv4/bpf_tcp_ca.c
@@ -51,8 +51,6 @@ static bool is_unsupported(u32 member_offset)
 	return false;
 }
 
-extern struct btf *btf_vmlinux;
-
 static bool bpf_tcp_ca_is_valid_access(int off, int size,
 				       enum bpf_access_type type,
 				       const struct bpf_prog *prog,
-- 
2.35.3