Re: [RFC PATCH v1 2/2] selftests: bpf: add a test when bpf_probe_read_kernel_str() returns EFAULT

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To: Francis Laniel <flaniel@xxxxxxxxxxxxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx
Subject: Re: [RFC PATCH v1 2/2] selftests: bpf: add a test when bpf_probe_read_kernel_str() returns EFAULT
From: Yonghong Song <yhs@xxxxxxxx>
Date: Tue, 8 Nov 2022 14:06:14 -0800
Cc: Alban Crequy <alban.crequy@xxxxxxxxx>, Alban Crequy <albancrequy@xxxxxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Alexei Starovoitov <ast@xxxxxxxxxx>, Daniel Borkmann <daniel@xxxxxxxxxxxxx>, Andrii Nakryiko <andrii@xxxxxxxxxx>, Martin KaFai Lau <martin.lau@xxxxxxxxx>, Song Liu <song@xxxxxxxxxx>, Yonghong Song <yhs@xxxxxx>, John Fastabend <john.fastabend@xxxxxxxxx>, KP Singh <kpsingh@xxxxxxxxxx>, Stanislav Fomichev <sdf@xxxxxxxxxx>, Hao Luo <haoluo@xxxxxxxxxx>, Jiri Olsa <jolsa@xxxxxxxxxx>, Mykola Lysenko <mykolal@xxxxxx>, Shuah Khan <shuah@xxxxxxxxxx>, linux-mm@xxxxxxxxx, bpf@xxxxxxxxxxxxxxx, linux-kselftest@xxxxxxxxxxxxxxx
In-reply-to: <20221108195211.214025-3-flaniel@linux.microsoft.com>
References: <20221108195211.214025-1-flaniel@linux.microsoft.com> <20221108195211.214025-3-flaniel@linux.microsoft.com>
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On 11/8/22 11:52 AM, Francis Laniel wrote:

From: Alban Crequy <albancrequy@xxxxxxxxxxxxx>

This commit tests previous fix of bpf_probe_read_kernel_str().

Signed-off-by: Alban Crequy <albancrequy@xxxxxxxxxxxxx>
Signed-off-by: Francis Laniel <flaniel@xxxxxxxxxxxxxxxxxxx>


Acked-by: Yonghong Song <yhs@xxxxxx>

References:
- [RFC PATCH v1 0/2] Fix offset when fault occurs in strncpy_from_kernel_nofault()
  - From: Francis Laniel
- [RFC PATCH v1 2/2] selftests: bpf: add a test when bpf_probe_read_kernel_str() returns EFAULT
  - From: Francis Laniel

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