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

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Message-ID: <20220819122359.050a3432@gandalf.local.home>
Date:   Fri, 19 Aug 2022 12:23:59 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Wolfram Sang <wsa+renesas@...g-engineering.com>
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

On Fri, 19 Aug 2022 07:53:51 +0200
Wolfram Sang <wsa+renesas@...g-engineering.com> wrote:

> > 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.

After reading Linus's rant, I figured as much.

-- Steve