Subject: [PATCH v2] lib/decompress_unxz.c: removing all memory helper functions

From: [email-masked] (Martin Schwidefsky)
Date: Wed, 13 Jun 2012 11:32:23 +0200

On Mon, 11 Jun 2012 20:16:02 -0700
"H. Peter Anvin" <[email-masked]> 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.

Just tested kernel compression with all five compression algorithms,
works fine for s390.

Acked-by: Martin Schwidefsky <[email-masked]>

-- 
blue skies,
   Martin.

"Reality continues to ruin my life." - Calvin.