Re: [PATCH bpf-next v2 09/11] selftests/bpf: test BTF_KIND_TAG for deduplication

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On Mon, Sep 13, 2021 at 8:52 AM Yonghong Song <yhs@xxxxxx> wrote:
>
> Add unit tests for BTF_KIND_TAG deduplication for
>   - struct and struct member
>   - variable
>   - func and func argument
>

Can you please also add tests where you have duplicated struct,
variable, and func (three different tests), and each copy has two
tags: one with common value (e.g., common_val) and one with unique
value (uniq_val1 and uniq_val2, one for each copy of a
struct/var/func). End result should be a single struct/var/func with
three different tags pointing to it (e.g., common_val, uniq_val1,
uniq_val2). I.e., those tags are "inherited" by the deduplicated
entity and only a unique set of them is left.

> Signed-off-by: Yonghong Song <yhs@xxxxxx>
> ---
>  tools/testing/selftests/bpf/prog_tests/btf.c | 91 ++++++++++++++++----
>  1 file changed, 74 insertions(+), 17 deletions(-)
>

[...]



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