From c5552ad03973839d83d32d7108f20c00f192633b Mon Sep 17 00:00:00 2001
From: nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Sat, 26 Jun 2010 20:42:58 +0000
Subject: rename target/linux/generic-2.6 to generic

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@21952 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
 .../053-lzo_compression_for_initramfs.patch        | 106 +++++++++++++++++++++
 1 file changed, 106 insertions(+)
 create mode 100644 target/linux/generic/patches-2.6.32/053-lzo_compression_for_initramfs.patch

(limited to 'target/linux/generic/patches-2.6.32/053-lzo_compression_for_initramfs.patch')

diff --git a/target/linux/generic/patches-2.6.32/053-lzo_compression_for_initramfs.patch b/target/linux/generic/patches-2.6.32/053-lzo_compression_for_initramfs.patch
new file mode 100644
index 000000000..c05c3833d
--- /dev/null
+++ b/target/linux/generic/patches-2.6.32/053-lzo_compression_for_initramfs.patch
@@ -0,0 +1,106 @@
+--- a/lib/Kconfig
++++ b/lib/Kconfig
+@@ -120,6 +120,10 @@ config DECOMPRESS_LZMA
+ config DECOMPRESS_LZMA_NEEDED
+ 	 boolean
+ 
++config DECOMPRESS_LZO
++	select LZO_DECOMPRESS
++	tristate
++
+ #
+ # Generic allocator support is selected if needed
+ #
+--- a/lib/Makefile
++++ b/lib/Makefile
+@@ -69,6 +69,7 @@ obj-$(CONFIG_LZO_DECOMPRESS) += lzo/
+ lib-$(CONFIG_DECOMPRESS_GZIP) += decompress_inflate.o
+ lib-$(CONFIG_DECOMPRESS_BZIP2) += decompress_bunzip2.o
+ lib-$(CONFIG_DECOMPRESS_LZMA) += decompress_unlzma.o
++lib-$(CONFIG_DECOMPRESS_LZO) += decompress_unlzo.o
+ 
+ obj-$(CONFIG_TEXTSEARCH) += textsearch.o
+ obj-$(CONFIG_TEXTSEARCH_KMP) += ts_kmp.o
+--- a/lib/decompress.c
++++ b/lib/decompress.c
+@@ -9,6 +9,7 @@
+ #include <linux/decompress/bunzip2.h>
+ #include <linux/decompress/unlzma.h>
+ #include <linux/decompress/inflate.h>
++#include <linux/decompress/unlzo.h>
+ 
+ #include <linux/types.h>
+ #include <linux/string.h>
+@@ -22,6 +23,9 @@
+ #ifndef CONFIG_DECOMPRESS_LZMA
+ # define unlzma NULL
+ #endif
++#ifndef CONFIG_DECOMPRESS_LZO
++# define unlzo NULL
++#endif
+ 
+ static const struct compress_format {
+ 	unsigned char magic[2];
+@@ -32,6 +36,7 @@ static const struct compress_format {
+ 	{ {037, 0236}, "gzip", gunzip },
+ 	{ {0x42, 0x5a}, "bzip2", bunzip2 },
+ 	{ {0x5d, 0x00}, "lzma", unlzma },
++	{ {0x89, 0x4c}, "lzo", unlzo },
+ 	{ {0, 0}, NULL, NULL }
+ };
+ 
+--- a/usr/Kconfig
++++ b/usr/Kconfig
+@@ -72,6 +72,15 @@ config RD_LZMA
+ 	  Support loading of a LZMA encoded initial ramdisk or cpio buffer
+ 	  If unsure, say N.
+ 
++config RD_LZO
++	bool "Support initial ramdisks compressed using LZO" if EMBEDDED
++	default !EMBEDDED
++	depends on BLK_DEV_INITRD && HAVE_KERNEL_LZO
++	select DECOMPRESS_LZO
++	help
++	  Support loading of a LZO encoded initial ramdisk or cpio buffer
++	  If unsure, say N.
++
+ choice
+ 	prompt "Built-in initramfs compression mode" if INITRAMFS_SOURCE!=""
+ 	help
+@@ -108,16 +117,15 @@ config INITRAMFS_COMPRESSION_GZIP
+ 	bool "Gzip"
+ 	depends on RD_GZIP
+ 	help
+-	  The old and tried gzip compression. Its compression ratio is
+-	  the poorest among the 3 choices; however its speed (both
+-	  compression and decompression) is the fastest.
++	  The old and tried gzip compression. It provides a good balance
++	  between compression ratio and decompression speed.
+ 
+ config INITRAMFS_COMPRESSION_BZIP2
+ 	bool "Bzip2"
+ 	depends on RD_BZIP2
+ 	help
+ 	  Its compression ratio and speed is intermediate.
+-	  Decompression speed is slowest among the three.  The initramfs
++	  Decompression speed is slowest among the four.  The initramfs
+ 	  size is about 10% smaller with bzip2, in comparison to gzip.
+ 	  Bzip2 uses a large amount of memory. For modern kernels you
+ 	  will need at least 8MB RAM or more for booting.
+@@ -128,7 +136,15 @@ config INITRAMFS_COMPRESSION_LZMA
+ 	help
+ 	  The most recent compression algorithm.
+ 	  Its ratio is best, decompression speed is between the other
+-	  two. Compression is slowest.	The initramfs size is about 33%
++	  three. Compression is slowest. The initramfs size is about 33%
+ 	  smaller with LZMA in comparison to gzip.
+ 
++config INITRAMFS_COMPRESSION_LZO
++	bool "LZO"
++	depends on RD_LZO
++	help
++	  Its compression ratio is the poorest among the four. The kernel
++	  size is about about 10% bigger than gzip; however its speed
++	  (both compression and decompression) is the fastest.
++
+ endchoice
-- 
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