From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Sun, 29 Mar 2009 20:05:41 +0000 (-0700)
Subject: Merge branch 'bzip2-lzma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel... 
X-Git-Tag: tegra-9.12.13.ER~3877
X-Git-Url: https://nv-tegra.nvidia.com/r/gitweb?p=linux-2.6.git;a=commitdiff_plain;h=0d34fb8e93ceba7b6dad0062dbb4a0813bacd75b;hp=503e57630309643562c12f09d4c8a96eb629ee33

Merge branch 'bzip2-lzma-for-linus' of git://git./linux/kernel/git/x86/linux-2.6-tip

* 'bzip2-lzma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-tip:
  bzip2/lzma: don't ask for compression mode for the default initramfs
  bzip2/lzma: consistently capitalize LZMA in Kconfig
  bzip2/lzma: clarify the meaning of the CONFIG_RD_ options
  bzip2/lzma: move CONFIG_RD_* options under CONFIG_EMBEDDED
---

diff --git a/usr/Kconfig b/usr/Kconfig
index 43a3a0fe8f2..588c588791e 100644
--- a/usr/Kconfig
+++ b/usr/Kconfig
@@ -46,49 +46,50 @@ config INITRAMFS_ROOT_GID
 	  If you are not sure, leave it set to "0".
 
 config RD_GZIP
-	bool "Initial ramdisk compressed using gzip"
+	bool "Support initial ramdisks compressed using gzip" if EMBEDDED
 	default y
-	depends on BLK_DEV_INITRD=y
+	depends on BLK_DEV_INITRD
 	select DECOMPRESS_GZIP
 	help
 	  Support loading of a gzip encoded initial ramdisk or cpio buffer.
 	  If unsure, say Y.
 
 config RD_BZIP2
-	bool "Initial ramdisk compressed using bzip2"
-	default n
-	depends on BLK_DEV_INITRD=y
+	bool "Support initial ramdisks compressed using bzip2" if EMBEDDED
+	default !EMBEDDED
+	depends on BLK_DEV_INITRD
 	select DECOMPRESS_BZIP2
 	help
 	  Support loading of a bzip2 encoded initial ramdisk or cpio buffer
 	  If unsure, say N.
 
 config RD_LZMA
-	bool "Initial ramdisk compressed using lzma"
-	default n
-	depends on BLK_DEV_INITRD=y
+	bool "Support initial ramdisks compressed using LZMA" if EMBEDDED
+	default !EMBEDDED
+	depends on BLK_DEV_INITRD
 	select DECOMPRESS_LZMA
 	help
-	  Support loading of a lzma encoded initial ramdisk or cpio buffer
+	  Support loading of a LZMA encoded initial ramdisk or cpio buffer
 	  If unsure, say N.
 
+if INITRAMFS_SOURCE!=""
+
 choice
 	prompt "Built-in initramfs compression mode"
 	help
-	  This setting is only meaningful if the INITRAMFS_SOURCE is
-	  set. It decides by which algorithm the INITRAMFS_SOURCE will
-	  be compressed.
-	  Several compression algorithms are available, which differ
-	  in efficiency, compression and decompression speed.
-	  Compression speed is only relevant when building a kernel.
-	  Decompression speed is relevant at each boot.
-
-	  If you have any problems with bzip2 or lzma compressed
+	  This option decides by which algorithm the builtin initramfs
+	  will be compressed.  Several compression algorithms are
+	  available, which differ in efficiency, compression and
+	  decompression speed.  Compression speed is only relevant
+	  when building a kernel.  Decompression speed is relevant at
+	  each boot.
+
+	  If you have any problems with bzip2 or LZMA compressed
 	  initramfs, mail me (Alain Knaff) <alain@knaff.lu>.
 
-	  High compression options are mostly useful for users who
-	  are low on disk space (embedded systems), but for whom ram
-	  size matters less.
+	  High compression options are mostly useful for users who are
+	  low on RAM, since it reduces the memory consumption during
+	  boot.
 
 	  If in doubt, select 'gzip'
 
@@ -133,3 +134,14 @@ config INITRAMFS_COMPRESSION_LZMA
 	  smaller with LZMA in comparison to gzip.
 
 endchoice
+
+endif
+
+if INITRAMFS_SOURCE=""
+# The builtin initramfs is so small so we don't want to bug the user...
+
+config INITRAMFS_COMPRESSION_NONE
+	bool
+	default y
+
+endif