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

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Date:	Tue, 12 Jun 2012 15:35:45 +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.

I'd like to toss this into my kautobuild+boot, but at the moment that's
rather pointless because OMAP has been broken since towards the end of
the merge window, and so far no sign of the fix hitting mainline any
time soon...
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