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Date: Sun, 7 Oct 2012 01:10:41 +0200
From: Borislav Petkov <bp@alien8.de>
To: danielfsantos@att.net
Cc: LKML <linux-kernel@vger.kernel.org>, Andi Kleen <ak@linux.intel.com>,
        Andrea Arcangeli <aarcange@redhat.com>,
        Andrew Morton <akpm@linux-foundation.org>,
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        David Daney <david.daney@cavium.com>,
        David Howells <dhowells@redhat.com>,
        David Rientjes <rientjes@google.com>, Joe Perches <joe@perches.com>,
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        Pavel Pisa <pisa@cmp.felk.cvut.cz>,
        Peter Zijlstra <a.p.zijlstra@chello.nl>,
        Steven Rostedt <rostedt@goodmis.org>,
        Daniel Santos <daniel.santos@pobox.com>
Subject: Re: [PATCH v2 03/10] compiler-gcc{3,4}.h: Use GCC_VERSION macro
Message-ID: <20121006231041.GB3278@liondog.tnic>
Mail-Followup-To: Borislav Petkov <bp@alien8.de>, danielfsantos@att.net,
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	Andrea Arcangeli <aarcange@redhat.com>,
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	Christopher Li <sparse@chrisli.org>,
	David Daney <david.daney@cavium.com>,
	David Howells <dhowells@redhat.com>,
	David Rientjes <rientjes@google.com>, Joe Perches <joe@perches.com>,
	Konstantin Khlebnikov <khlebnikov@openvz.org>,
	linux-sparse@vger.kernel.org, Michel Lespinasse <walken@google.com>,
	Paul Gortmaker <paul.gortmaker@windriver.com>,
	Pavel Pisa <pisa@cmp.felk.cvut.cz>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	Steven Rostedt <rostedt@goodmis.org>,
	Daniel Santos <daniel.santos@pobox.com>
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On Fri, Oct 05, 2012 at 02:42:42PM -0500, danielfsantos@att.net wrote:
> Using GCC_VERSION reduces complexity, is easier to read and is GCC's
> recommended mechanism for doing version checks. (Just don't ask me why
> they didn't define it in the first place.)  This also makes it easy to
> merge compiler-gcc{,3,4}.h should somebody want to.
> 
> Signed-off-by: Daniel Santos <daniel.santos@pobox.com>
> Acked-by: David Rientjes <rientjes@google.com>
> ---

[ … ]

> diff --git a/include/linux/compiler-gcc4.h b/include/linux/compiler-gcc4.h
> index 4506d65..bbfeb13 100644
> --- a/include/linux/compiler-gcc4.h
> +++ b/include/linux/compiler-gcc4.h
> @@ -4,7 +4,7 @@
>  
>  /* GCC 4.1.[01] miscompiles __weak */
>  #ifdef __KERNEL__
> -# if __GNUC_MINOR__ == 1 && __GNUC_PATCHLEVEL__ <= 1
> +# if GCC_VERSION >= 40100 &&  GCC_VERSION <= 40101
>  //#  error Your version of gcc miscompiles the __weak directive

Did I miss something again? This "error" preprocessor function is
commented out here? Why?

-- 
Regards/Gruss,
    Boris.
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