linux-kernel - Re: [PATCH] kernel: move from strlcpy with unused retval to strscpy

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Date:   Fri, 19 Aug 2022 07:53:51 +0200
From:   Wolfram Sang <wsa+renesas@...g-engineering.com>
To:     Steven Rostedt <rostedt@...dmis.org>
Cc:     linux-kernel@...r.kernel.org, Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Andrii Nakryiko <andrii@...nel.org>,
        Martin KaFai Lau <martin.lau@...ux.dev>,
        Song Liu <song@...nel.org>, Yonghong Song <yhs@...com>,
        John Fastabend <john.fastabend@...il.com>,
        KP Singh <kpsingh@...nel.org>,
        Stanislav Fomichev <sdf@...gle.com>,
        Hao Luo <haoluo@...gle.com>, Jiri Olsa <jolsa@...nel.org>,
        Tejun Heo <tj@...nel.org>, Zefan Li <lizefan.x@...edance.com>,
        Johannes Weiner <hannes@...xchg.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Petr Mladek <pmladek@...e.com>,
        Sergey Senozhatsky <senozhatsky@...omium.org>,
        John Ogness <john.ogness@...utronix.de>,
        John Stultz <jstultz@...gle.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Stephen Boyd <sboyd@...nel.org>, bpf@...r.kernel.org,
        cgroups@...r.kernel.org, linux-perf-users@...r.kernel.org
Subject: Re: [PATCH] kernel: move from strlcpy with unused retval to strscpy

Hi Steven,

> But in my cases I actually do trust the source string. They are all

The ultimate goal is to remove strlcpy entirely. My motivation is to get
rid of the extra work for maintainers that they need to ensure that the
author of a patch paid attention to the detail that the source string
must be trusted.

Happy hacking,

   Wolfram

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