summaryrefslogtreecommitdiffstats
path: root/lib/decompress.c
diff options
context:
space:
mode:
authorKyungsik Lee <kyungsik.lee@lge.com>2013-07-08 16:01:46 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-07-09 10:33:30 -0700
commite76e1fdfa8f8dc1ea6699923cf5d92b5bee9c936 (patch)
treed216233bcf256a8a3d8912cebbbf82032bb7b715 /lib/decompress.c
parentcffb78b0e0b3a30b059b27a1d97500cf6464efa9 (diff)
downloadlinux-e76e1fdfa8f8dc1ea6699923cf5d92b5bee9c936.tar.gz
lib: add support for LZ4-compressed kernel
Add support for extracting LZ4-compressed kernel images, as well as LZ4-compressed ramdisk images in the kernel boot process. Signed-off-by: Kyungsik Lee <kyungsik.lee@lge.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Borislav Petkov <bp@alien8.de> Cc: Florian Fainelli <florian@openwrt.org> Cc: Yann Collet <yann.collet.73@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib/decompress.c')
-rw-r--r--lib/decompress.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/decompress.c b/lib/decompress.c
index f8fdeda..4d1cd03 100644
--- a/lib/decompress.c
+++ b/lib/decompress.c
@@ -11,6 +11,7 @@
#include <linux/decompress/unxz.h>
#include <linux/decompress/inflate.h>
#include <linux/decompress/unlzo.h>
+#include <linux/decompress/unlz4.h>
#include <linux/types.h>
#include <linux/string.h>
@@ -31,6 +32,9 @@
#ifndef CONFIG_DECOMPRESS_LZO
# define unlzo NULL
#endif
+#ifndef CONFIG_DECOMPRESS_LZ4
+# define unlz4 NULL
+#endif
struct compress_format {
unsigned char magic[2];
@@ -45,6 +49,7 @@ static const struct compress_format compressed_formats[] __initconst = {
{ {0x5d, 0x00}, "lzma", unlzma },
{ {0xfd, 0x37}, "xz", unxz },
{ {0x89, 0x4c}, "lzo", unlzo },
+ { {0x02, 0x21}, "lz4", unlz4 },
{ {0, 0}, NULL, NULL }
};