linux-kernel - Re: [PATCH 11/14] powerpc: Use macros for .data.page

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Date:	Tue, 28 Apr 2009 00:20:47 -0400 (EDT)
From:	Tim Abbott <tabbott@....EDU>
To:	Sam Ravnborg <sam@...nborg.org>
cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux kernel mailing list <linux-kernel@...r.kernel.org>,
	Anders Kaseorg <andersk@....edu>,
	Waseem Daher <wdaher@....edu>,
	Denys Vlasenko <vda.linux@...glemail.com>,
	Jeff Arnold <jbarnold@....edu>,
	Paul Mundt <lethal@...ux-sh.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>
Subject: Re: [PATCH 11/14] powerpc: Use macros for .data.page_aligned
 section.

On Mon, 27 Apr 2009, Tim Abbott wrote:

> +++ b/arch/powerpc/kernel/vmlinux.lds.S
> @@ -222,6 +222,7 @@ SECTIONS
>  
>  #ifdef CONFIG_PPC32
>  	.data : AT(ADDR(.data) - LOAD_OFFSET) {
> +		PAGE_ALIGNED_DATA
>  		DATA_DATA
>  		*(.sdata)
>  		*(.got.plt) *(.got)

Just noticed that PAGE_ALIGNED_DATA is only being added for CONFIG_PPC32.

Since there will be several more FOO_DATA macros being added to the .data 
section, I think the right fix is to first unify the two .data output 
section definitions, and then convert to using PAGE_ALIGNED_DATA.

	-Tim Abbott
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