linux-kernel - Re: [PATCH v7 09/10] selftests/ftrace: Add clear_dynamic

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Date:   Thu, 19 Aug 2021 09:57:09 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     linux-kernel@...r.kernel.org, linux-trace-devel@...r.kernel.org
Cc:     Ingo Molnar <mingo@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        "Tzvetomir Stoyanov" <tz.stoyanov@...il.com>,
        Tom Zanussi <zanussi@...nel.org>
Subject: Re: [PATCH v7 09/10] selftests/ftrace: Add clear_dynamic_events()
 to test cases

On Thu, 19 Aug 2021 00:13:30 -0400
Steven Rostedt <rostedt@...dmis.org> wrote:

> +clear_dynamic_events() { # reset all current dynamic events
> +    again=1
> +    stop=1
> +    # loop mulitple times as some events require other to be removed first
> +    while [ $again -eq 1 ]; do
> +	stop=$((stop+1))
> +	# Prevent infinite loops
> +	if [ $stop -gt 10 ]; then
> +	    break;
> +	fi
> +	again=2
> +	grep -v '^#' dynamic_events|
> +	while read line; do
> +	    del=`sed -e 's/^.\([^ ]*\).*/-\1/'`

That should be "del=`echo $line | sed -e 's/^.\([^ ]*\).*/-\1/'`

Will fix in v8.

-- Steve

> +	    if ! echo "$del" >> dynamic_events; then
> +		again=1
> +	    fi
> +	done
> +    done
> +}