linux-kernel - Re: [PATCH 1/3] perf script python: Fix string vs byte array resolving

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Message-ID: <20160715161310.GA831@krava>
Date:	Fri, 15 Jul 2016 18:13:10 +0200
From:	Jiri Olsa <jolsa@...hat.com>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	Jiri Pirko <jiri@...lanox.com>, Jiri Olsa <jolsa@...nel.org>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	lkml <linux-kernel@...r.kernel.org>,
	David Ahern <dsahern@...il.com>,
	Ingo Molnar <mingo@...nel.org>,
	Namhyung Kim <namhyung@...nel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: Re: [PATCH 1/3] perf script python: Fix string vs byte array
 resolving

On Fri, Jul 15, 2016 at 12:02:31PM -0400, Steven Rostedt wrote:

SNIP

> > for "AA\1\0" this returns "1" although that should return "0".
> > 
> > orig len 4
> > decremented len 3
> > for:
> > 0 1
> > 
> > index 2 would not be inspected. Or am I missing something?
> > 
> > I think that the for check should be "i < len"
> 
> Yes it should be. I think we got the two solutions mixed up.
> 
> With the above len--, it should be i < len, but when we did the check
> for zero at the end, we needed the i < len - 1

ugh right.. should be 'i < len' check in the for loop,

there's also the patch 2/3 that needs to be changed

Arnaldo,
please let me know if you need me to resend this.

thanks,
jirka