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bpf: export btf_ctx_access to modules.

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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>
This commit is contained in:
Kui-Feng Lee 2024-01-19 14:50:04 -08:00 • committed by Martin KaFai Lau
parent 9e926acda0
commit 7c81c2490c
1 changed files with 1 additions and 0 deletions
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kernel/bpf/btf.c
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@ -6322,6 +6322,7 @@ 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 */