From: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
To: "Ilpo Järvinen" <ilpo.jarvinen@helsinki.fi>
Cc: linuxppc-dev@ozlabs.org, paulus@samba.org
Subject: Re: [PATCH] [POWERPC] Invalid semicolon after if statement
Date: Thu, 16 Aug 2007 09:22:05 +0200 (CEST) [thread overview]
Message-ID: <Pine.LNX.4.62.0708160920010.6037@pademelon.sonytel.be> (raw)
In-Reply-To: <Pine.LNX.4.64.0708151644090.15670@kivilampi-30.cs.helsinki.fi>
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On Thu, 16 Aug 2007, [ISO-8859-1] Ilpo Järvinen wrote:
> A similar fix to netfilter from Eric Dumazet inspired me to
> look around a bit by using some grep/sed stuff as looking for
> this kind of bugs seemed easy to automate. This is one of them
> I found where it looks like this semicolon is not valid.
>
> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
> ---
>
> ...Since I'm not familiar with these parts of the kernel, you might know
> better than I do if this is stuff is valid...
>
> arch/powerpc/mm/hash_utils_64.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c
> index f178957..a47151e 100644
> --- a/arch/powerpc/mm/hash_utils_64.c
> +++ b/arch/powerpc/mm/hash_utils_64.c
> @@ -795,7 +795,7 @@ void hash_preload(struct mm_struct *mm, unsigned long ea,
>
> #ifdef CONFIG_PPC_MM_SLICES
> /* We only prefault standard pages for now */
> - if (unlikely(get_slice_psize(mm, ea) != mm->context.user_psize));
> + if (unlikely(get_slice_psize(mm, ea) != mm->context.user_psize))
> return;
> #endif
Interestingly the test has `unlikely'. So the bug showed up in the `likely'
case...
With kind regards,
Geert Uytterhoeven
Software Architect
Sony Network and Software Technology Center Europe
The Corporate Village · Da Vincilaan 7-D1 · B-1935 Zaventem · Belgium
Phone: +32 (0)2 700 8453
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E-mail: Geert.Uytterhoeven@sonycom.com
Internet: http://www.sony-europe.com/
Sony Network and Software Technology Center Europe
A division of Sony Service Centre (Europe) N.V.
Registered office: Technologielaan 7 · B-1840 Londerzeel · Belgium
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next prev parent reply other threads:[~2007-08-16 7:22 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-15 22:03 [PATCH] [POWERPC] Invalid semicolon after if statement Ilpo Järvinen
2007-08-16 7:22 ` Geert Uytterhoeven [this message]
2007-08-16 8:08 ` Michael Ellerman
2007-08-16 14:03 ` Segher Boessenkool
2007-08-16 16:40 ` Andreas Schwab
2007-08-16 23:08 ` Michael Ellerman
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