Re: [PATCH][RFC] Sparc: Remove trigraph in die_if_kernel() message.

From: David Miller
Date: Thu Jun 09 2011 - 18:59:51 EST


From: Jesper Juhl <jj@xxxxxxxxxxxxx>
Date: Tue, 7 Jun 2011 16:38:19 +0200 (CEST)

> In arch/sparc/kernel/traps_32.c::do_priv_instruction() we have this:
>
> die_if_kernel("Penguin instruction from Penguin mode??!?!", regs);
>
> If I'm not mistaken, that "??!" will be taken as a trigraph for "|" by the
> preprocessor, so the final string will end up either as
> "Penguin instruction from Penguin mode|?!"
> which I assume is not what we want, or as the correct string but with a
> warning about an ignored trigraph which I assume we don't want either. So,
> in order to elliminate the trigraph but keep the original string intact I
> changed it to
>
> die_if_kernel("Penguin instruction from Penguin mode?""?!?!", regs);
>
> I've tested with a small test program on my x86-64 host and it behaves as
> I would expect, but I've not tested the actual code in
> arch/sparc/kernel/traps_32.c since I have no way to compile for sparc
> (which is why I submit this as a [RFC] patch).
>
> Please take a look and apply if you agree :-)
>
> Signed-off-by: Jesper Juhl <jj@xxxxxxxxxxxxx>

Applied, thanks Jesper :-)
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