linux-kernel - Re: [patch] clean hex output of ftrace

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Message-ID: <20081009123113.GB2952@elte.hu>
Date:	Thu, 9 Oct 2008 14:31:13 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Harvey Harrison <harvey.harrison@...il.com>
Cc:	Steven Rostedt <rostedt@...dmis.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Joe Perches <joe@...ches.com>
Subject: Re: [patch] clean hex output of ftrace


* Harvey Harrison <harvey.harrison@...il.com> wrote:

> On Wed, 2008-10-08 at 17:16 -0700, Joe Perches wrote:
> > On Wed, 8 Oct 2008, Harvey Harrison wrote:
> > > From: Harvey Harrison <harvey.harrison@...il.com>
> > > Subject: [PATCH] ftrace: Fix inversion of hex output and use common routines
> > 
> > You're quick...
> > 
> > >  	BUG_ON(len >= HEX_CHARS);
> > 
> > I think the BUG_ON is senseless.
> > 
> 
> Agreed, it probably meant to say BUG_ON(len * 2 > HEX_CHARS -1)
> 
> But as this is only called from within a helper macro, it could be
> changed to a build-time check instead of a runtime:
> 
> From: Harvey Harrison <harvey.harrison@...il.com>
> Subject: [PATCH] trace: add build-time check to avoid overrunning hex buffer

applied to tip/tracing/core:

 bb86ba7: trace: add build-time check to avoid overrunning hex buffer
 32ce86f: ftrace: fix hex output mode of ftrace

thanks guys!

	Ingo
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