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[bpf-next,v12,12/14] bpf: export btf_ctx_access to modules.

Message ID 20231207013950.1689269-13-thinker.li@gmail.com (mailing list archive)
State Superseded
Delegated to: BPF
Headers show
Series Registrating struct_ops types from modules | expand

Checks

Context Check Description
netdev/tree_selection success Clearly marked for bpf-next, async
netdev/apply fail Patch does not apply to bpf-next
bpf/vmtest-bpf-next-PR fail merge-conflict

Commit Message

Kui-Feng Lee Dec. 7, 2023, 1:39 a.m. UTC 
From: Kui-Feng Lee <thinker.li@gmail.com>

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>
---
 kernel/bpf/btf.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index 5545dee3ff54..d9cdf41e8f34 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -6142,6 +6142,7 @@  bool btf_ctx_access(int off, int size, enum bpf_access_type type,
 		__btf_name_by_offset(btf, t->name_off));
 	return true;
 }
+EXPORT_SYMBOL_GPL(btf_ctx_access);
 
 enum bpf_struct_walk_result {
 	/* < 0 error */