linux-kernel - Re: linux-next: build warnings after merge of the final tree (tip treee related)

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Date:	Mon, 13 Sep 2010 14:39:42 +1000
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	Yinghai Lu <yinghai@...nel.org>
Cc:	Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Peter Zijlstra <peterz@...radead.org>,
	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	ppc-dev <linuxppc-dev@...ts.ozlabs.org>
Subject: Re: linux-next: build warnings after merge of the final tree (tip
 treee related)

Hi Yinghai,

On Sun, 12 Sep 2010 21:14:15 -0700 Yinghai Lu <yinghai@...nel.org> wrote:
>
> please check it, and it should get into core/memblock branch.
> 
> Thanks
> 
> Yinghai
> 
> [PATCH] memblock: Fix section mismatch warning
> 
> for arches that use memblock other than x86
> 
> Reported-by: Stephen Rothwell <sfr@...b.auug.org.au>
> Signed-off-by: Yinghai Lu <Yinghai@...nel.org>

Your patch fixes some of the warnings, but still leaves these for a
powerpc allnoconfig build:

WARNING: mm/built-in.o(.text+0x25d80): Section mismatch in reference from the function memblock_double_array() to the function .init.text:memblock_free()
The function memblock_double_array() references
the function __init memblock_free().
This is often because memblock_double_array lacks a __init 
annotation or the annotation of memblock_free is wrong.

WARNING: mm/built-in.o(.text+0x26318): Section mismatch in reference from the function memblock_reserve_reserved_regions() to the function .init.text:memblock_reserve()
The function memblock_reserve_reserved_regions() references
the function __init memblock_reserve().
This is often because memblock_reserve_reserved_regions lacks a __init 
annotation or the annotation of memblock_reserve is wrong.

WARNING: mm/built-in.o(.text+0x26490): Section mismatch in reference from the function memblock_free_reserved_regions() to the function .init.text:memblock_free()
The function memblock_free_reserved_regions() references
the function __init memblock_free().
This is often because memblock_free_reserved_regions lacks a __init 
annotation or the annotation of memblock_free is wrong.

And these for a i386 defconfig build:

WARNING: mm/built-in.o(.text+0x1e261): Section mismatch in reference from the function memblock_is_memory() to the variable .init.data:memblock
The function memblock_is_memory() references
the variable __initdata memblock.
This is often because memblock_is_memory lacks a __initdata 
annotation or the annotation of memblock is wrong.

WARNING: mm/built-in.o(.text+0x1e27f): Section mismatch in reference from the function memblock_is_region_memory() to the variable .init.data:memblock
The function memblock_is_region_memory() references
the variable __initdata memblock.
This is often because memblock_is_region_memory lacks a __initdata 
annotation or the annotation of memblock is wrong.

-- 
Cheers,
Stephen Rothwell                    sfr@...b.auug.org.au
http://www.canb.auug.org.au/~sfr/

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