The patch titled
Subject: initramfs: select builtin initram compression algorithm on KConfig instead of Makefile
has been added to the -mm tree. Its filename is
initramfs-select-builtin-initram-compression-algorithm-on-kconfig-instead-of-makefile.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/initramfs-select-builtin-initram-compression-algorithm-on-kconfig-instead-of-makefile.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/initramfs-select-builtin-initram-compression-algorithm-on-kconfig-instead-of-makefile.patch
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------------------------------------------------------
From: Francisco Blas Izquierdo Riera (klondike) <klondike@xxxxxxxxxxx>
Subject: initramfs: select builtin initram compression algorithm on KConfig instead of Makefile
Move the current builtin initram compression algorithm selection from the
Makefile into the INITRAMFS_COMPRESSION variable. This makes deciding
algorithm precedence easier and would allow for overrides if new
algorithms want to be tested.
Link: http://lkml.kernel.org/r/57EAD769.1090401@xxxxxxxxxxx
Signed-off-by: Francisco Blas Izquierdo Riera (klondike) <klondike@xxxxxxxxxxx>
Cc: P J P <ppandit@xxxxxxxxxx>
Cc: Paul Bolle <pebolle@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
usr/Kconfig | 10 ++++++++++
usr/Makefile | 20 +-------------------
2 files changed, 11 insertions(+), 19 deletions(-)
diff -puN usr/Kconfig~initramfs-select-builtin-initram-compression-algorithm-on-kconfig-instead-of-makefile usr/Kconfig
--- a/usr/Kconfig~initramfs-select-builtin-initram-compression-algorithm-on-kconfig-instead-of-makefile
+++ a/usr/Kconfig
@@ -98,3 +98,13 @@ config RD_LZ4
help
Support loading of a LZ4 encoded initial ramdisk or cpio buffer
If unsure, say N.
+
+config INITRAMFS_COMPRESSION
+ string
+ default ".gz" if RD_GZIP
+ default ".lz4" if RD_LZ4
+ default ".lzo" if RD_LZO
+ default ".xz" if RD_XZ
+ default ".lzma" if RD_LZMA
+ default ".bz2" if RD_BZIP2
+ default ""
diff -puN usr/Makefile~initramfs-select-builtin-initram-compression-algorithm-on-kconfig-instead-of-makefile usr/Makefile
--- a/usr/Makefile~initramfs-select-builtin-initram-compression-algorithm-on-kconfig-instead-of-makefile
+++ a/usr/Makefile
@@ -5,25 +5,7 @@
klibcdirs:;
PHONY += klibcdirs
-
-# Bzip2
-suffix_$(CONFIG_RD_BZIP2) = .bz2
-
-# Lzma
-suffix_$(CONFIG_RD_LZMA) = .lzma
-
-# XZ
-suffix_$(CONFIG_RD_XZ) = .xz
-
-# Lzo
-suffix_$(CONFIG_RD_LZO) = .lzo
-
-# Lz4
-suffix_$(CONFIG_RD_LZ4) = .lz4
-
-# Gzip
-suffix_$(CONFIG_RD_GZIP) = .gz
-
+suffix_y = $(CONFIG_INITRAMFS_COMPRESSION)
AFLAGS_initramfs_data.o += -DINITRAMFS_IMAGE="usr/initramfs_data.cpio$(suffix_y)"
# Generate builtin.o based on initramfs_data.o
_
Patches currently in -mm which might be from klondike@xxxxxxxxxxx are
initramfs-select-builtin-initram-compression-algorithm-on-kconfig-instead-of-makefile.patch
initramfs-allow-again-choice-of-the-embedded-initram-compression-algorithm.patch
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