linux-kernel - Re: Return value of print_graph

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Date:	Fri, 11 Dec 2009 12:04:47 +0100
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	Wenji Huang <wenji.huang@...cle.com>
Cc:	Steven Rostedt <rostedt@...dmis.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: Return value of print_graph_prologue

On Fri, Dec 11, 2009 at 06:12:31PM +0800, Wenji Huang wrote:
> Hi,
>
> I got confused about the return value of print_graph_prologue. See:
>
> 805         /* Latency format */
> 806         if (trace_flags & TRACE_ITER_LATENCY_FMT) {
> 807                 ret = print_graph_lat_fmt(s, ent);
> 808                 if (ret == TRACE_TYPE_PARTIAL_LINE)
> 809                         return TRACE_TYPE_PARTIAL_LINE;
> 810         }
> 811
> 812         return 0;
> 813 }
>
> But we have defined TRACE_TYPE_PARTIAL_LINE = 0. So there's
> no difference between success and failure?
>
> Should it be TRACE_TYPE_HANDLED ?
>
> Regards,
> Wenji


Oh, good catch, I'm preparing a fix.

Thanks.

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