netdev - Re: [PATCH bpf-next] bpf: log struct/union attribute for forward type

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Message-ID: <456bc4bc-1732-d56b-9dbf-4667b95f411c@iogearbox.net>
Date:   Wed, 19 Dec 2018 00:49:46 +0100
From:   Daniel Borkmann <daniel@...earbox.net>
To:     Yonghong Song <yhs@...com>, ast@...com, netdev@...r.kernel.org
Cc:     kernel-team@...com
Subject: Re: [PATCH bpf-next] bpf: log struct/union attribute for forward type

On 12/18/2018 10:43 PM, Yonghong Song wrote:
> Current btf internal verbose logger logs fwd type as
>   [2] FWD A type_id=0
> where A is the type name.
> 
> Commit 9d5f9f701b18 ("bpf: btf: fix struct/union/fwd types
> with kind_flag") introduced kind_flag which can be used
> to distinguish whether a forward type is a struct or
> union.
> 
> Also, "type_id=0" does not carry any meaningful
> information for fwd type as btf_type.type = 0 is simply
> enforced during btf verification and is not used
> anywhere else.
> 
> This commit changed the log to
>   [2] FWD A struct
> if kind_flag = 0, or
>   [2] FWD A union
> if kind_flag = 1.
> 
> Acked-by: Martin KaFai Lau <kafai@...com>
> Signed-off-by: Yonghong Song <yhs@...com>

Applied, thanks!