RE: RE: [PATCH bpf-next] selftests/bpf: Fix strncpy() fortify warning

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To: "'Rong Tao'" <rtoax@xxxxxxxxxxx>
Subject: RE: RE: [PATCH bpf-next] selftests/bpf: Fix strncpy() fortify warning
From: David Laight <David.Laight@xxxxxxxxxx>
Date: Tue, 1 Nov 2022 09:27:06 +0000
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Cc: "andrii.nakryiko@xxxxxxxxx" <andrii.nakryiko@xxxxxxxxx>, "andrii@xxxxxxxxxx" <andrii@xxxxxxxxxx>, "ast@xxxxxxxxxx" <ast@xxxxxxxxxx>, "bpf@xxxxxxxxxxxxxxx" <bpf@xxxxxxxxxxxxxxx>, "daniel@xxxxxxxxxxxxx" <daniel@xxxxxxxxxxxxx>, "haoluo@xxxxxxxxxx" <haoluo@xxxxxxxxxx>, "john.fastabend@xxxxxxxxx" <john.fastabend@xxxxxxxxx>, "jolsa@xxxxxxxxxx" <jolsa@xxxxxxxxxx>, "kpsingh@xxxxxxxxxx" <kpsingh@xxxxxxxxxx>, "linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>, "linux-kselftest@xxxxxxxxxxxxxxx" <linux-kselftest@xxxxxxxxxxxxxxx>, "martin.lau@xxxxxxxxx" <martin.lau@xxxxxxxxx>, "mykolal@xxxxxx" <mykolal@xxxxxx>, "rongtao@xxxxxxxx" <rongtao@xxxxxxxx>, "sdf@xxxxxxxxxx" <sdf@xxxxxxxxxx>, "shuah@xxxxxxxxxx" <shuah@xxxxxxxxxx>, "song@xxxxxxxxxx" <song@xxxxxxxxxx>, "yhs@xxxxxx" <yhs@xxxxxx>
In-reply-to: <tencent_5523542A5E3F46AD119B0C0A8588B27E2E09@qq.com>
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Thread-topic: RE: [PATCH bpf-next] selftests/bpf: Fix strncpy() fortify warning

From: Rong Tao <rtoax@xxxxxxxxxxx>
> Sent: 01 November 2022 09:25
> 
> Can we just use the first patch?
> https://lore.kernel.org/lkml/tencent_EE3E19F80ACD66955D26A878BC768CFA210A@xxxxxx/

IIRC strlcpy() does the copy you want.

	David

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Follow-Ups:
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References:
- RE: [PATCH bpf-next] selftests/bpf: Fix strncpy() fortify warning
  - From: David Laight
- Re: RE: [PATCH bpf-next] selftests/bpf: Fix strncpy() fortify warning
  - From: Rong Tao

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