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From:   Daniel Xu <dxu@dxuuu.xyz>
To:     bpf@vger.kernel.org, ast@kernel.org, daniel@iogearbox.net,
        andrii@kernel.org, memxor@gmail.com
Cc:     Daniel Xu <dxu@dxuuu.xyz>, pablo@netfilter.org, fw@strlen.de,
        toke@kernel.org, netfilter-devel@vger.kernel.org,
        netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH bpf-next v2 2/4] bpf: Add stub for btf_struct_access()
Date:   Wed, 17 Aug 2022 12:43:00 -0600
Message-Id: <3a707dd1ec4a2441425a8882072c69ffb774ed4d.1660761470.git.dxu@dxuuu.xyz>
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Add corresponding unimplemented stub for when CONFIG_BPF_SYSCALL=n

Signed-off-by: Daniel Xu <dxu@dxuuu.xyz>
---
 include/linux/bpf.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index a627a02cf8ab..24069eccb30c 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -2148,6 +2148,15 @@ static inline struct bpf_prog *bpf_prog_by_id(u32 id)
 	return ERR_PTR(-ENOTSUPP);
 }
 
+static inline int btf_struct_access(struct bpf_verifier_log *log,
+				    const struct btf *btf,
+				    const struct btf_type *t, int off, int size,
+				    enum bpf_access_type atype,
+				    u32 *next_btf_id, enum bpf_type_flag *flag)
+{
+	return -EACCES;
+}
+
 static inline const struct bpf_func_proto *
 bpf_base_func_proto(enum bpf_func_id func_id)
 {
-- 
2.37.1