Re: [patch] clean hex output of ftrace

From: Ingo Molnar
Date: Thu Oct 09 2008 - 08:31:34 EST



* Harvey Harrison <harvey.harrison@xxxxxxxxx> 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@xxxxxxxxx>
> > > 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@xxxxxxxxx>
> 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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