From: Kui-Feng Lee <thinker.li@gmail.com> mainline inclusion from mainline-v6.9-rc1 commit 7c81c2490c73e614c6d48e4f339f4f224140b565 category: feature bugzilla: https://atomgit.com/openeuler/kernel/issues/8335 CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i... ---------------------------------------------------------------------- The module requires the use of btf_ctx_access() to invoke bpf_tracing_btf_ctx_access() from a module. This function is valuable for implementing validation functions that ensure proper access to ctx. Signed-off-by: Kui-Feng Lee <thinker.li@gmail.com> Link: https://lore.kernel.org/r/20240119225005.668602-14-thinker.li@gmail.com Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Conflicts: kernel/bpf/btf.c [Fix context conflicts.] Signed-off-by: Luo Gengkun <luogengkun2@huawei.com> --- kernel/bpf/btf.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c index 1cd7e8fbcc57..db3e74481f65 100644 --- a/kernel/bpf/btf.c +++ b/kernel/bpf/btf.c @@ -6400,6 +6400,7 @@ bool btf_ctx_access(int off, int size, enum bpf_access_type type, } return true; } +EXPORT_SYMBOL_GPL(btf_ctx_access); enum bpf_struct_walk_result { /* < 0 error */ -- 2.34.1