Re: [PATCH bpf-next 2/2] selftests/bpf: check null propagation only neither reg is PTR_TO_BTF_ID

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Subject: Re: [PATCH bpf-next 2/2] selftests/bpf: check null propagation only neither reg is PTR_TO_BTF_ID
From: Yonghong Song <yhs@xxxxxxxx>
Date: Mon, 12 Dec 2022 15:22:49 -0800
Cc: ast@xxxxxxxxxx, daniel@xxxxxxxxxxxxx, john.fastabend@xxxxxxxxx, andrii@xxxxxxxxxx, martin.lau@xxxxxxxxx, song@xxxxxxxxxx, yhs@xxxxxx, kpsingh@xxxxxxxxxx, sdf@xxxxxxxxxx, haoluo@xxxxxxxxxx, jolsa@xxxxxxxxxx, davem@xxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
In-reply-to: <20221212041547.12775-1-sunhao.th@gmail.com>
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:102.0) Gecko/20100101 Thunderbird/102.5.1



On 12/11/22 8:15 PM, Hao Sun wrote:

Verify that nullness information is not porpagated in the branches
of register to register JEQ and JNE operations if one of them is
PTR_TO_BTF_ID.

Signed-off-by: Hao Sun <sunhao.th@xxxxxxxxx>


Acked-by: Yonghong Song <yhs@xxxxxx>

References:
- [PATCH bpf-next 2/2] selftests/bpf: check null propagation only neither reg is PTR_TO_BTF_ID
  - From: Hao Sun

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