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authorFrancisco Blas Izquierdo Riera (klondike) <klondike@klondike.es>2016-12-14 15:06:01 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2016-12-14 16:04:08 -0800
commit35e669e1a254e8b60d4a8983205b383666cc01ca (patch)
treee08553ab2cf9e0f19e44eff03f8cae1e77604bb9 /usr
parent34aaff40b42148b23dcde40152480e25c7d2d759 (diff)
downloadlinux-stericsson-35e669e1a254e8b60d4a8983205b383666cc01ca.tar.gz
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@klondike.es Signed-off-by: Francisco Blas Izquierdo Riera (klondike) <klondike@klondike.es> Cc: P J P <ppandit@redhat.com> Cc: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'usr')
-rw-r--r--usr/Kconfig10
-rw-r--r--usr/Makefile20
2 files changed, 11 insertions, 19 deletions
diff --git a/usr/Kconfig b/usr/Kconfig
index 572dcf7b6a44..bf8e8f15358f 100644
--- a/usr/Kconfig
+++ b/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 --git a/usr/Makefile b/usr/Makefile
index e767f019accf..17a513268325 100644
--- a/usr/Makefile
+++ b/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