linux-kernel - Re: [PATCH 3/3] selftests/ftrace: Use /bin/echo instead of built-in echo

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Message-Id: <20200508005202.fb39efc3fae84924878f36f4@kernel.org>
Date:   Fri, 8 May 2020 00:52:02 +0900
From:   Masami Hiramatsu <mhiramat@...nel.org>
To:     Andreas Schwab <schwab@...ux-m68k.org>
Cc:     Shuah Khan <shuah@...nel.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org,
        Tom Zanussi <tom.zanussi@...ux.intel.com>,
        Li Philip <philip.li@...el.com>,
        Liu Yiding <yidingx.liu@...el.com>
Subject: Re: [PATCH 3/3] selftests/ftrace: Use /bin/echo instead of built-in
 echo

On Thu, 07 May 2020 11:22:28 +0200
Andreas Schwab <schwab@...ux-m68k.org> wrote:

> On Mai 01 2020, Masami Hiramatsu wrote:
> 
> > Since the built-in echo has different behavior in POSIX shell
> > (dash) and bash, we forcibly use /bin/echo -E (not interpret
> > backslash escapes) by default.
> 
> How about using printf instead (at least where it matters)?

Hmm, I think replacing all echos with printf in the testcase might be
much harder than this...

Thank you,

-- 
Masami Hiramatsu <mhiramat@...nel.org>