2022-08-17 19:20:48

by Daniel Xu

Subject: [PATCH bpf-next v2 2/4] bpf: Add stub for btf_struct_access()

Add corresponding unimplemented stub for when CONFIG_BPF_SYSCALL=n

Signed-off-by: Daniel Xu <[email protected]>
---
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

2022-08-17 20:45:03

by Kumar Kartikeya Dwivedi

Subject: Re: [PATCH bpf-next v2 2/4] bpf: Add stub for btf_struct_access()

On Wed, 17 Aug 2022 at 20:43, Daniel Xu <[email protected]> wrote:
>
> Add corresponding unimplemented stub for when CONFIG_BPF_SYSCALL=n
>
> Signed-off-by: Daniel Xu <[email protected]>
> ---

Acked-by: Kumar Kartikeya Dwivedi <[email protected]>