linux-kernel - Re: [PATCH v2] lib/decompress_unxz.c: removing all memory helper functions

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Message-ID: <20120614182350.GB7628@n2100.arm.linux.org.uk>
Date:	Thu, 14 Jun 2012 19:23:50 +0100
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	T Makphaibulchoke <tmac@...com>, schwidefsky@...ibm.com,
	heiko.carstens@...ibm.com, linux390@...ibm.com,
	lethal@...ux-sh.org, tglx@...utronix.de, mingo@...hat.com,
	x86@...nel.org, kaloz@...nwrt.org, nicolas.pitre@...aro.org,
	jj@...osbits.net, matt.fleming@...el.com, lasse.collin@...aani.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-s390@...r.kernel.org, linux-sh@...r.kernel.org
Subject: Re: [PATCH v2] lib/decompress_unxz.c: removing all memory helper
	functions

On Mon, Jun 11, 2012 at 08:16:02PM -0700, H. Peter Anvin wrote:
> On 06/11/2012 08:05 PM, T Makphaibulchoke wrote:
> > Cleaning up the file lib/decompress_unxz.c, moving all memory helper functions,
> > e.g. memmove, to a new common source file, lib/boot/mem.c.
> > 
> > In additon to including the decompressor, any architecture supporting the XZ
> > decompression needs to also include this new source file.
> > 
> > Also moving some other duplicated memory helper functions to this new source
> > file from the arm, s390, sh and x86 preboot environments.  All 4 architectures
> > build without error when using any compression.
> > 
> > Adding a new file lib/boot/mem.c, containing memory helper functions required
> > by different compression types.
> > 
> > Adding memcmp declaration workaround and removing the memmove and memcpy
> > defines workaround from arch/arm/boot/compressed/decompress.c
> > 
> > Removing the common functions, memmove, memcmp and memset, and adding the new
> > source file include to arch/arm/boot/compressed/string.c.
> > 
> > Removing the memcpy and memmove functions and adding the new source file
> > include to arch/s390/boot/compressed/misc.c.
> > 
> > Removing the memset function and adding the new source file include to
> > arch/sh/boot/compressed/misc.c
> > 
> > Removing the memset function from arch/x86/boot/compressed/misc.c and move
> > the memcpy function to the file arch/x86/boot/compressed/string.c
> > 
> > Adding the memcpy function and the new source file include to
> > arch/x86/boot/compressed/string.c
> > 
> 
> I can take this if Russell, Martin or Heiko, and Paul are willing to ack it.

Acked-by: Russell King <rmk+kernel@....linux.org.uk>
Tested-by: Russell King <rmk+kernel@....linux.org.uk>

(Tested on OMAP4430SDP).
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