The patch titled
Subject: x86: add support for LZ4-compressed kernel
has been added to the -mm tree. Its filename is
x86-add-support-for-lz4-compressed-kernel.patch
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*** Remember to use Documentation/SubmitChecklist when testing your code ***
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------------------------------------------------------
From: Kyungsik Lee <kyungsik.lee@xxxxxxx>
Subject: x86: add support for LZ4-compressed kernel
Integrate the LZ4 decompression code to the x86 pre-boot code.
Signed-off-by: Kyungsik Lee <kyungsik.lee@xxxxxxx>
Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Russell King <rmk@xxxxxxxxxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxxxx>
Cc: Florian Fainelli <florian@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/x86/Kconfig | 1 +
arch/x86/boot/compressed/Makefile | 5 ++++-
arch/x86/boot/compressed/misc.c | 4 ++++
3 files changed, 9 insertions(+), 1 deletion(-)
diff -puN arch/x86/Kconfig~x86-add-support-for-lz4-compressed-kernel arch/x86/Kconfig
--- a/arch/x86/Kconfig~x86-add-support-for-lz4-compressed-kernel
+++ a/arch/x86/Kconfig
@@ -65,6 +65,7 @@ config X86
select HAVE_KERNEL_LZMA
select HAVE_KERNEL_XZ
select HAVE_KERNEL_LZO
+ select HAVE_KERNEL_LZ4
select HAVE_HW_BREAKPOINT
select HAVE_MIXED_BREAKPOINTS_REGS
select PERF_EVENTS
diff -puN arch/x86/boot/compressed/Makefile~x86-add-support-for-lz4-compressed-kernel arch/x86/boot/compressed/Makefile
--- a/arch/x86/boot/compressed/Makefile~x86-add-support-for-lz4-compressed-kernel
+++ a/arch/x86/boot/compressed/Makefile
@@ -4,7 +4,7 @@
# create a compressed vmlinux image from the original vmlinux
#
-targets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma vmlinux.bin.xz vmlinux.bin.lzo head_$(BITS).o misc.o string.o cmdline.o early_serial_console.o piggy.o
+targets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma vmlinux.bin.xz vmlinux.bin.lzo vmlinux.bin.lz4 head_$(BITS).o misc.o string.o cmdline.o early_serial_console.o piggy.o
KBUILD_CFLAGS := -m$(BITS) -D__KERNEL__ $(LINUX_INCLUDE) -O2
KBUILD_CFLAGS += -fno-strict-aliasing -fPIC
@@ -64,12 +64,15 @@ $(obj)/vmlinux.bin.xz: $(vmlinux.bin.all
$(call if_changed,xzkern)
$(obj)/vmlinux.bin.lzo: $(vmlinux.bin.all-y) FORCE
$(call if_changed,lzo)
+$(obj)/vmlinux.bin.lz4: $(vmlinux.bin.all-y) FORCE
+ $(call if_changed,lz4)
suffix-$(CONFIG_KERNEL_GZIP) := gz
suffix-$(CONFIG_KERNEL_BZIP2) := bz2
suffix-$(CONFIG_KERNEL_LZMA) := lzma
suffix-$(CONFIG_KERNEL_XZ) := xz
suffix-$(CONFIG_KERNEL_LZO) := lzo
+suffix-$(CONFIG_KERNEL_LZ4) := lz4
quiet_cmd_mkpiggy = MKPIGGY $@
cmd_mkpiggy = $(obj)/mkpiggy $< > $@ || ( rm -f $@ ; false )
diff -puN arch/x86/boot/compressed/misc.c~x86-add-support-for-lz4-compressed-kernel arch/x86/boot/compressed/misc.c
--- a/arch/x86/boot/compressed/misc.c~x86-add-support-for-lz4-compressed-kernel
+++ a/arch/x86/boot/compressed/misc.c
@@ -145,6 +145,10 @@ static int lines, cols;
#include "../../../../lib/decompress_unlzo.c"
#endif
+#ifdef CONFIG_KERNEL_LZ4
+#include "../../../../lib/decompress_unlz4.c"
+#endif
+
static void scroll(void)
{
int i;
_
Patches currently in -mm which might be from kyungsik.lee@xxxxxxx are
decompressor-add-lz4-decompressor-module.patch
lib-add-support-for-lz4-compressed-kernel.patch
arm-add-support-for-lz4-compressed-kernel.patch
x86-add-support-for-lz4-compressed-kernel.patch
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