dragora/patches/kernel/linux-4.14.21_lzip-1.diff

diff -urdN linux-4.14.21/Documentation/00-INDEX linux-4.14.21.new/Documentation/00-INDEX
--- linux-4.14.21/Documentation/00-INDEX	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/Documentation/00-INDEX	2018-02-24 17:22:34.000000000 +0100
@@ -260,6 +260,8 @@
 	- info on creator of above logo & site to get additional images from.
 lsm.txt
 	- Linux Security Modules: General Security Hooks for Linux
+lzip.txt
+	- info on lzip compression for the linux kernel.
 lzo.txt
 	- kernel LZO decompressor input formats
 m68k/
diff -urdN linux-4.14.21/Documentation/dontdiff linux-4.14.21.new/Documentation/dontdiff
--- linux-4.14.21/Documentation/dontdiff	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/Documentation/dontdiff	2018-02-24 17:22:34.000000000 +0100
@@ -26,6 +26,7 @@
 *.ll
 *.log
 *.lst
+*.lz
 *.lzma
 *.lzo
 *.mo
diff -urdN linux-4.14.21/Documentation/lzip.txt linux-4.14.21.new/Documentation/lzip.txt
--- linux-4.14.21/Documentation/lzip.txt	1970-01-01 01:00:00.000000000 +0100
+++ linux-4.14.21.new/Documentation/lzip.txt	2018-02-24 17:22:34.000000000 +0100
@@ -0,0 +1,46 @@
+
+Lzip data compression in Linux
+==============================
+
+Linux already offers a lot of compression formats. Then, why lzip?
+
+Because lzip is the only gzip-like LZMA compressor featuring a
+well-designed format:
+
+   * Lzma-alone is a toy format lacking integrity checking or even a
+     proper header.
+
+   * Xz has a complex and not properly designed format[1]. It can
+     compress the kernel image a little more than lzip on some
+     architectures (about 4% on x86) by using a different binary filter
+     for each architecture. But this increase in complexity does not
+     improve the decompression time (much less the boot time) compared
+     with lzip.
+
+     Also the xz compressor is the only one needing special options to
+     compress data for linux, and xz decompression is the only one that
+     may fail because of wrong options used at compression time.
+
+     [1] See http://www.nongnu.org/lzip/xz_inadequate.html
+
+I have the hope that lzma-alone and xz will be eventually abandoned in
+favor of lzip.
+
+Lzip-compressed kernel images of multiple linux versions since 2.6.30.10
+have been built and tested, even on machines as modest as an AMD 486-DX2
+at 66 MHz with 64 MiB of RAM. In the worst case (on the slow machine
+above), lzip just increased the boot time a 15% compared with gzip. On
+more modern machines, lzip may boot slightly faster than gzip. It just
+takes 0.2 seconds for lzip to decompress vmlinuz-4.4.16 on my machine.
+
+One little-publicized fact is that, except on embedded systems with fast
+boot setups, decompression speed is not important in booting linux.
+Decompression time is usually a small fraction of the total boot time.
+For example, using lz4 on a desktop machine in order to save 0.05
+seconds of a total boot time of 20 seconds is probably not worth the
+increased image size.
+
+Learn more about lzip at http://www.nongnu.org/lzip/lzip.html
+
+Author: Antonio Diaz Diaz
+Updated: 2017-04-19
diff -urdN linux-4.14.21/Documentation/x86/boot.txt linux-4.14.21.new/Documentation/x86/boot.txt
--- linux-4.14.21/Documentation/x86/boot.txt	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/Documentation/x86/boot.txt	2018-02-24 17:22:34.000000000 +0100
@@ -665,10 +665,10 @@
   The payload may be compressed. The format of both the compressed and
   uncompressed data should be determined using the standard magic
   numbers.  The currently supported compression formats are gzip
-  (magic numbers 1F 8B or 1F 9E), bzip2 (magic number 42 5A), LZMA
-  (magic number 5D 00), XZ (magic number FD 37), and LZ4 (magic number
-  02 21).  The uncompressed payload is currently always ELF (magic
-  number 7F 45 4C 46).
+  (magic numbers 1F 8B or 1F 9E), bzip2 (magic number 42 5A), lzip
+  (magic number 4C 5A), LZMA (magic number 5D 00), XZ (magic number FD
+  37), and LZ4 (magic number 02 21).  The uncompressed payload is
+  currently always ELF (magic number 7F 45 4C 46).
 
 Field name:	payload_length
 Type:		read
diff -urdN linux-4.14.21/Makefile linux-4.14.21.new/Makefile
--- linux-4.14.21/Makefile	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/Makefile	2018-02-24 17:22:34.000000000 +0100
@@ -897,14 +897,17 @@
 export mod_strip_cmd
 
 # CONFIG_MODULE_COMPRESS, if defined, will cause module to be compressed
-# after they are installed in agreement with CONFIG_MODULE_COMPRESS_GZIP
-# or CONFIG_MODULE_COMPRESS_XZ.
+# after they are installed in agreement with CONFIG_MODULE_COMPRESS_GZIP,
+# CONFIG_MODULE_COMPRESS_LZIP or CONFIG_MODULE_COMPRESS_XZ.
 
 mod_compress_cmd = true
 ifdef CONFIG_MODULE_COMPRESS
   ifdef CONFIG_MODULE_COMPRESS_GZIP
     mod_compress_cmd = gzip -n -f
   endif # CONFIG_MODULE_COMPRESS_GZIP
+  ifdef CONFIG_MODULE_COMPRESS_LZIP
+    mod_compress_cmd = lzip -f
+  endif # CONFIG_MODULE_COMPRESS_LZIP
   ifdef CONFIG_MODULE_COMPRESS_XZ
     mod_compress_cmd = xz -f
   endif # CONFIG_MODULE_COMPRESS_XZ
@@ -916,6 +919,7 @@
 #
 INITRD_COMPRESS-y                  := gzip
 INITRD_COMPRESS-$(CONFIG_RD_BZIP2) := bzip2
+INITRD_COMPRESS-$(CONFIG_RD_LZIP)  := lzip
 INITRD_COMPRESS-$(CONFIG_RD_LZMA)  := lzma
 INITRD_COMPRESS-$(CONFIG_RD_XZ)    := xz
 INITRD_COMPRESS-$(CONFIG_RD_LZO)   := lzo
diff -urdN linux-4.14.21/arch/arm/Kconfig linux-4.14.21.new/arch/arm/Kconfig
--- linux-4.14.21/arch/arm/Kconfig	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/arch/arm/Kconfig	2018-02-24 17:22:34.000000000 +0100
@@ -72,6 +72,7 @@
 	select HAVE_IRQ_TIME_ACCOUNTING
 	select HAVE_KERNEL_GZIP
 	select HAVE_KERNEL_LZ4
+	select HAVE_KERNEL_LZIP
 	select HAVE_KERNEL_LZMA
 	select HAVE_KERNEL_LZO
 	select HAVE_KERNEL_XZ
diff -urdN linux-4.14.21/arch/arm/boot/compressed/Makefile linux-4.14.21.new/arch/arm/boot/compressed/Makefile
--- linux-4.14.21/arch/arm/boot/compressed/Makefile	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/arch/arm/boot/compressed/Makefile	2018-02-24 17:22:34.000000000 +0100
@@ -68,6 +68,7 @@
 CPPFLAGS_vmlinux.lds := -DTEXT_START="$(ZTEXTADDR)" -DBSS_START="$(ZBSSADDR)"
 
 compress-$(CONFIG_KERNEL_GZIP) = gzip
+compress-$(CONFIG_KERNEL_LZIP) = klzip
 compress-$(CONFIG_KERNEL_LZO)  = lzo
 compress-$(CONFIG_KERNEL_LZMA) = lzma
 compress-$(CONFIG_KERNEL_XZ)   = xzkern
diff -urdN linux-4.14.21/arch/arm/boot/compressed/decompress.c linux-4.14.21.new/arch/arm/boot/compressed/decompress.c
--- linux-4.14.21/arch/arm/boot/compressed/decompress.c	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/arch/arm/boot/compressed/decompress.c	2018-02-24 17:22:34.000000000 +0100
@@ -40,6 +40,10 @@
 #include "../../../../lib/decompress_inflate.c"
 #endif
 
+#ifdef CONFIG_KERNEL_LZIP
+#include "../../../../lib/decompress_lunzip.c"
+#endif
+
 #ifdef CONFIG_KERNEL_LZO
 #include "../../../../lib/decompress_unlzo.c"
 #endif
diff -urdN linux-4.14.21/arch/blackfin/Kconfig linux-4.14.21.new/arch/blackfin/Kconfig
--- linux-4.14.21/arch/blackfin/Kconfig	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/arch/blackfin/Kconfig	2018-02-24 17:22:34.000000000 +0100
@@ -22,6 +22,7 @@
 	select HAVE_IDE
 	select HAVE_KERNEL_GZIP if RAMKERNEL
 	select HAVE_KERNEL_BZIP2 if RAMKERNEL
+	select HAVE_KERNEL_LZIP if RAMKERNEL
 	select HAVE_KERNEL_LZMA if RAMKERNEL
 	select HAVE_KERNEL_LZO if RAMKERNEL
 	select HAVE_OPROFILE
diff -urdN linux-4.14.21/arch/blackfin/Makefile linux-4.14.21.new/arch/blackfin/Makefile
--- linux-4.14.21/arch/blackfin/Makefile	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/arch/blackfin/Makefile	2018-02-24 17:22:34.000000000 +0100
@@ -141,7 +141,8 @@
 
 INSTALL_PATH ?= /tftpboot
 boot := arch/$(ARCH)/boot
-BOOT_TARGETS = uImage uImage.bin uImage.bz2 uImage.gz uImage.lzma uImage.lzo uImage.xip
+BOOT_TARGETS = uImage uImage.bin uImage.bz2 uImage.gz uImage.lz uImage.lzma \
+	       uImage.lzo uImage.xip
 PHONY += $(BOOT_TARGETS) install
 KBUILD_IMAGE := $(boot)/uImage
 
@@ -158,6 +159,7 @@
   echo  '  vmImage.bin     - Uncompressed Kernel-only image for U-Boot (arch/$(ARCH)/boot/vmImage.bin)'
   echo  '  vmImage.bz2     - Kernel-only image for U-Boot (arch/$(ARCH)/boot/vmImage.bz2)'
   echo  '* vmImage.gz      - Kernel-only image for U-Boot (arch/$(ARCH)/boot/vmImage.gz)'
+  echo  '  vmImage.lz      - Kernel-only image for U-Boot (arch/$(ARCH)/boot/vmImage.lz)'
   echo  '  vmImage.lzma    - Kernel-only image for U-Boot (arch/$(ARCH)/boot/vmImage.lzma)'
   echo  '  vmImage.lzo     - Kernel-only image for U-Boot (arch/$(ARCH)/boot/vmImage.lzo)'
   echo  '  vmImage.xip     - XIP Kernel-only image for U-Boot (arch/$(ARCH)/boot/vmImage.xip)'
diff -urdN linux-4.14.21/arch/blackfin/boot/Makefile linux-4.14.21.new/arch/blackfin/boot/Makefile
--- linux-4.14.21/arch/blackfin/boot/Makefile	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/arch/blackfin/boot/Makefile	2018-02-24 17:22:34.000000000 +0100
@@ -6,8 +6,10 @@
 # for more details.
 #
 
-targets := uImage uImage.bin uImage.bz2 uImage.gz uImage.lzma uImage.lzo uImage.xip
-extra-y += vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma vmlinux.bin.lzo vmlinux.bin.xip
+targets := uImage uImage.bin uImage.bz2 uImage.gz uImage.lz uImage.lzma \
+	   uImage.lzo uImage.xip
+extra-y += vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lz \
+	   vmlinux.bin.lzma vmlinux.bin.lzo vmlinux.bin.xip
 
 ifeq ($(CONFIG_RAMKERNEL),y)
 UIMAGE_LOADADDR = $(CONFIG_BOOT_LOAD)
@@ -27,6 +29,9 @@
 $(obj)/vmlinux.bin.bz2: $(obj)/vmlinux.bin FORCE
 	$(call if_changed,bzip2)
 
+$(obj)/vmlinux.bin.lz: $(obj)/vmlinux.bin FORCE
+	$(call if_changed,klzip)
+
 $(obj)/vmlinux.bin.lzma: $(obj)/vmlinux.bin FORCE
 	$(call if_changed,lzma)
 
@@ -48,6 +53,9 @@
 $(obj)/uImage.gz: $(obj)/vmlinux.bin.gz
 	$(call if_changed,uimage,gzip)
 
+$(obj)/uImage.lz: $(obj)/vmlinux.bin.lz
+	$(call if_changed,uimage,lzip)
+
 $(obj)/uImage.lzma: $(obj)/vmlinux.bin.lzma
 	$(call if_changed,uimage,lzma)
 
@@ -60,6 +68,7 @@
 suffix-y                      := bin
 suffix-$(CONFIG_KERNEL_GZIP)  := gz
 suffix-$(CONFIG_KERNEL_BZIP2) := bz2
+suffix-$(CONFIG_KERNEL_LZIP)  := lz
 suffix-$(CONFIG_KERNEL_LZMA)  := lzma
 suffix-$(CONFIG_KERNEL_LZO)   := lzo
 suffix-$(CONFIG_ROMKERNEL)    := xip
diff -urdN linux-4.14.21/arch/m32r/Kconfig linux-4.14.21.new/arch/m32r/Kconfig
--- linux-4.14.21/arch/m32r/Kconfig	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/arch/m32r/Kconfig	2018-02-24 17:22:34.000000000 +0100
@@ -7,6 +7,7 @@
 	select INIT_ALL_POSSIBLE
 	select HAVE_KERNEL_GZIP
 	select HAVE_KERNEL_BZIP2
+	select HAVE_KERNEL_LZIP
 	select HAVE_KERNEL_LZMA
 	select ARCH_WANT_IPC_PARSE_VERSION
 	select HAVE_DEBUG_BUGVERBOSE
diff -urdN linux-4.14.21/arch/m32r/boot/compressed/Makefile linux-4.14.21.new/arch/m32r/boot/compressed/Makefile
--- linux-4.14.21/arch/m32r/boot/compressed/Makefile	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/arch/m32r/boot/compressed/Makefile	2018-02-24 17:22:34.000000000 +0100
@@ -5,8 +5,8 @@
 # create a compressed vmlinux image from the original vmlinux
 #
 
-targets		:= vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 \
-		   vmlinux.bin.lzma head.o misc.o piggy.o vmlinux.lds
+targets := vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 \
+	   vmlinux.bin.lz vmlinux.bin.lzma head.o misc.o piggy.o vmlinux.lds
 
 OBJECTS = $(obj)/head.o $(obj)/misc.o
 
@@ -30,6 +30,9 @@
 $(obj)/vmlinux.bin.bz2: $(obj)/vmlinux.bin FORCE
 	$(call if_changed,bzip2)
 
+$(obj)/vmlinux.bin.lz: $(obj)/vmlinux.bin FORCE
+	$(call if_changed,klzip)
+
 $(obj)/vmlinux.bin.lzma: $(obj)/vmlinux.bin FORCE
 	$(call if_changed,lzma)
 
@@ -45,6 +48,7 @@
 
 suffix-$(CONFIG_KERNEL_GZIP)	= gz
 suffix-$(CONFIG_KERNEL_BZIP2)	= bz2
+suffix-$(CONFIG_KERNEL_LZIP)	= lz
 suffix-$(CONFIG_KERNEL_LZMA)	= lzma
 
 $(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.$(suffix-y) FORCE
diff -urdN linux-4.14.21/arch/m32r/boot/compressed/misc.c linux-4.14.21.new/arch/m32r/boot/compressed/misc.c
--- linux-4.14.21/arch/m32r/boot/compressed/misc.c	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/arch/m32r/boot/compressed/misc.c	2018-02-24 17:22:34.000000000 +0100
@@ -39,7 +39,7 @@
 }
 #endif
 
-#ifdef CONFIG_KERNEL_GZIP
+#if defined(CONFIG_KERNEL_GZIP) || defined(CONFIG_KERNEL_LZIP)
 void *memcpy(void *dest, const void *src, size_t n)
 {
 	char *d = dest;
@@ -49,7 +49,9 @@
 
 	return dest;
 }
+#endif
 
+#ifdef CONFIG_KERNEL_GZIP
 #define BOOT_HEAP_SIZE             0x10000
 #include "../../../../lib/decompress_inflate.c"
 #endif
@@ -59,6 +61,11 @@
 #include "../../../../lib/decompress_bunzip2.c"
 #endif
 
+#ifdef CONFIG_KERNEL_LZIP
+#define BOOT_HEAP_SIZE             0x10000
+#include "../../../../lib/decompress_lunzip.c"
+#endif
+
 #ifdef CONFIG_KERNEL_LZMA
 #define BOOT_HEAP_SIZE             0x10000
 #include "../../../../lib/decompress_unlzma.c"
diff -urdN linux-4.14.21/arch/metag/Kconfig linux-4.14.21.new/arch/metag/Kconfig
--- linux-4.14.21/arch/metag/Kconfig	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/arch/metag/Kconfig	2018-02-24 17:22:34.000000000 +0100
@@ -17,6 +17,7 @@
 	select HAVE_FUNCTION_TRACER
 	select HAVE_KERNEL_BZIP2
 	select HAVE_KERNEL_GZIP
+	select HAVE_KERNEL_LZIP
 	select HAVE_KERNEL_LZO
 	select HAVE_KERNEL_XZ
 	select HAVE_MEMBLOCK
diff -urdN linux-4.14.21/arch/metag/Makefile linux-4.14.21.new/arch/metag/Makefile
--- linux-4.14.21/arch/metag/Makefile	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/arch/metag/Makefile	2018-02-24 17:22:34.000000000 +0100
@@ -56,6 +56,7 @@
 boot_targets				+= uImage
 boot_targets				+= uImage.gz
 boot_targets				+= uImage.bz2
+boot_targets				+= uImage.lz
 boot_targets				+= uImage.xz
 boot_targets				+= uImage.lzo
 boot_targets				+= uImage.bin
@@ -83,6 +84,7 @@
   @echo '  uImage.bin	- Kernel-only image for U-Boot (bin)'
   @echo '  uImage.gz	- Kernel-only image for U-Boot (gzip)'
   @echo '  uImage.bz2	- Kernel-only image for U-Boot (bzip2)'
+  @echo '  uImage.lz	- Kernel-only image for U-Boot (lzip)'
   @echo '  uImage.xz	- Kernel-only image for U-Boot (xz)'
   @echo '  uImage.lzo	- Kernel-only image for U-Boot (lzo)'
   @echo '  dtbs		- Build device tree blobs for enabled boards'
diff -urdN linux-4.14.21/arch/metag/boot/Makefile linux-4.14.21.new/arch/metag/boot/Makefile
--- linux-4.14.21/arch/metag/boot/Makefile	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/arch/metag/boot/Makefile	2018-02-24 17:22:34.000000000 +0100
@@ -9,6 +9,7 @@
 suffix-y := bin
 suffix-$(CONFIG_KERNEL_GZIP)	:= gz
 suffix-$(CONFIG_KERNEL_BZIP2)	:= bz2
+suffix-$(CONFIG_KERNEL_LZIP)	:= lz
 suffix-$(CONFIG_KERNEL_XZ)	:= xz
 suffix-$(CONFIG_KERNEL_LZO)	:= lzo
 
@@ -16,6 +17,7 @@
 targets += uImage
 targets += uImage.gz
 targets += uImage.bz2
+targets += uImage.lz
 targets += uImage.xz
 targets += uImage.lzo
 targets += uImage.bin
@@ -23,6 +25,7 @@
 extra-y += vmlinux.bin
 extra-y += vmlinux.bin.gz
 extra-y += vmlinux.bin.bz2
+extra-y += vmlinux.bin.lz
 extra-y += vmlinux.bin.xz
 extra-y += vmlinux.bin.lzo
 
@@ -42,6 +45,9 @@
 $(obj)/vmlinux.bin.bz2: $(obj)/vmlinux.bin FORCE
 	$(call if_changed,bzip2)
 
+$(obj)/vmlinux.bin.lz: $(obj)/vmlinux.bin FORCE
+	$(call if_changed,klzip)
+
 $(obj)/vmlinux.bin.xz: $(obj)/vmlinux.bin FORCE
 	$(call if_changed,xzkern)
 
@@ -54,6 +60,9 @@
 $(obj)/uImage.bz2: $(obj)/vmlinux.bin.bz2 FORCE
 	$(call if_changed,uimage,bzip2)
 
+$(obj)/uImage.lz: $(obj)/vmlinux.bin.lz FORCE
+	$(call if_changed,uimage,lzip)
+
 $(obj)/uImage.xz: $(obj)/vmlinux.bin.xz FORCE
 	$(call if_changed,uimage,xz)
 
diff -urdN linux-4.14.21/arch/mips/Kconfig linux-4.14.21.new/arch/mips/Kconfig
--- linux-4.14.21/arch/mips/Kconfig	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/arch/mips/Kconfig	2018-02-24 17:22:34.000000000 +0100
@@ -1820,6 +1820,7 @@
 	select HAVE_KERNEL_GZIP
 	select HAVE_KERNEL_BZIP2
 	select HAVE_KERNEL_LZ4
+	select HAVE_KERNEL_LZIP
 	select HAVE_KERNEL_LZMA
 	select HAVE_KERNEL_LZO
 	select HAVE_KERNEL_XZ
diff -urdN linux-4.14.21/arch/mips/Makefile linux-4.14.21.new/arch/mips/Makefile
--- linux-4.14.21/arch/mips/Makefile	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/arch/mips/Makefile	2018-02-24 17:22:34.000000000 +0100
@@ -338,12 +338,14 @@
 boot-y			+= uImage.bin
 boot-y			+= uImage.bz2
 boot-y			+= uImage.gz
+boot-y			+= uImage.lz
 boot-y			+= uImage.lzma
 boot-y			+= uImage.lzo
 endif
 boot-y			+= vmlinux.itb
 boot-y			+= vmlinux.gz.itb
 boot-y			+= vmlinux.bz2.itb
+boot-y			+= vmlinux.lz.itb
 boot-y			+= vmlinux.lzma.itb
 boot-y			+= vmlinux.lzo.itb
 
@@ -454,6 +456,7 @@
 	echo '  uImage.bin           - U-Boot image (uncompressed)'
 	echo '  uImage.bz2           - U-Boot image (bz2)'
 	echo '  uImage.gz            - U-Boot image (gzip)'
+	echo '  uImage.lz            - U-Boot image (lzip)'
 	echo '  uImage.lzma          - U-Boot image (lzma)'
 	echo '  uImage.lzo           - U-Boot image (lzo)'
 	echo '  uzImage.bin          - U-Boot image (self-extracting)'
diff -urdN linux-4.14.21/arch/mips/boot/Makefile linux-4.14.21.new/arch/mips/boot/Makefile
--- linux-4.14.21/arch/mips/boot/Makefile	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/arch/mips/boot/Makefile	2018-02-24 17:22:34.000000000 +0100
@@ -26,6 +26,7 @@
 suffix-y			:= bin
 suffix-$(CONFIG_KERNEL_BZIP2)	:= bz2
 suffix-$(CONFIG_KERNEL_GZIP)	:= gz
+suffix-$(CONFIG_KERNEL_LZIP)	:= lz
 suffix-$(CONFIG_KERNEL_LZMA)	:= lzma
 suffix-$(CONFIG_KERNEL_LZO)	:= lzo
 
@@ -56,6 +57,7 @@
 
 extra-y += vmlinux.bin.bz2
 extra-y += vmlinux.bin.gz
+extra-y += vmlinux.bin.lz
 extra-y += vmlinux.bin.lzma
 extra-y += vmlinux.bin.lzo
 
@@ -65,6 +67,9 @@
 $(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
 	$(call if_changed,gzip)
 
+$(obj)/vmlinux.bin.lz: $(obj)/vmlinux.bin FORCE
+	$(call if_changed,klzip)
+
 $(obj)/vmlinux.bin.lzma: $(obj)/vmlinux.bin FORCE
 	$(call if_changed,lzma)
 
@@ -79,6 +84,7 @@
 targets += uImage.bin
 targets += uImage.bz2
 targets += uImage.gz
+targets += uImage.lz
 targets += uImage.lzma
 targets += uImage.lzo
 
@@ -91,6 +97,9 @@
 $(obj)/uImage.gz: $(obj)/vmlinux.bin.gz FORCE
 	$(call if_changed,uimage,gzip)
 
+$(obj)/uImage.lz: $(obj)/vmlinux.bin.lz FORCE
+	$(call if_changed,uimage,lzip)
+
 $(obj)/uImage.lzma: $(obj)/vmlinux.bin.lzma FORCE
 	$(call if_changed,uimage,lzma)
 
@@ -108,6 +117,7 @@
 targets += vmlinux.itb
 targets += vmlinux.gz.itb
 targets += vmlinux.bz2.itb
+targets += vmlinux.lz.itb
 targets += vmlinux.lzma.itb
 targets += vmlinux.lzo.itb
 
@@ -143,6 +153,9 @@
 $(obj)/vmlinux.bz2.its: $(obj)/vmlinux.its.S $(VMLINUX)  FORCE
 	$(call if_changed_dep,cpp_its_S,bzip2,vmlinux.bin.bz2)
 
+$(obj)/vmlinux.lz.its: $(obj)/vmlinux.its.S $(VMLINUX) FORCE
+	$(call if_changed_dep,cpp_its_S,lzip,vmlinux.bin.lz)
+
 $(obj)/vmlinux.lzma.its: $(obj)/vmlinux.its.S $(VMLINUX) FORCE
 	$(call if_changed_dep,cpp_its_S,lzma,vmlinux.bin.lzma)
 
@@ -167,6 +180,9 @@
 $(obj)/vmlinux.bz2.itb: $(obj)/vmlinux.bz2.its $(obj)/vmlinux.bin.bz2 FORCE
 	$(call if_changed,itb-image,$<)
 
+$(obj)/vmlinux.lz.itb: $(obj)/vmlinux.lz.its $(obj)/vmlinux.bin.lz FORCE
+	$(call if_changed,itb-image,$<)
+
 $(obj)/vmlinux.lzma.itb: $(obj)/vmlinux.lzma.its $(obj)/vmlinux.bin.lzma FORCE
 	$(call if_changed,itb-image,$<)
 
diff -urdN linux-4.14.21/arch/mips/boot/compressed/Makefile linux-4.14.21.new/arch/mips/boot/compressed/Makefile
--- linux-4.14.21/arch/mips/boot/compressed/Makefile	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/arch/mips/boot/compressed/Makefile	2018-02-24 17:22:34.000000000 +0100
@@ -61,6 +61,7 @@
 tool_$(CONFIG_KERNEL_GZIP)    = gzip
 tool_$(CONFIG_KERNEL_BZIP2)   = bzip2
 tool_$(CONFIG_KERNEL_LZ4)     = lz4
+tool_$(CONFIG_KERNEL_LZIP)    = klzip
 tool_$(CONFIG_KERNEL_LZMA)    = lzma
 tool_$(CONFIG_KERNEL_LZO)     = lzo
 tool_$(CONFIG_KERNEL_XZ)      = xzkern
diff -urdN linux-4.14.21/arch/mips/boot/compressed/decompress.c linux-4.14.21.new/arch/mips/boot/compressed/decompress.c
--- linux-4.14.21/arch/mips/boot/compressed/decompress.c	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/arch/mips/boot/compressed/decompress.c	2018-02-24 17:22:34.000000000 +0100
@@ -64,6 +64,10 @@
 #include "../../../../lib/decompress_unlz4.c"
 #endif
 
+#ifdef CONFIG_KERNEL_LZIP
+#include "../../../../lib/decompress_lunzip.c"
+#endif
+
 #ifdef CONFIG_KERNEL_LZMA
 #include "../../../../lib/decompress_unlzma.c"
 #endif
diff -urdN linux-4.14.21/arch/s390/Kconfig linux-4.14.21.new/arch/s390/Kconfig
--- linux-4.14.21/arch/s390/Kconfig	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/arch/s390/Kconfig	2018-02-24 17:22:34.000000000 +0100
@@ -151,6 +151,7 @@
 	select HAVE_KERNEL_BZIP2
 	select HAVE_KERNEL_GZIP
 	select HAVE_KERNEL_LZ4
+	select HAVE_KERNEL_LZIP
 	select HAVE_KERNEL_LZMA
 	select HAVE_KERNEL_LZO
 	select HAVE_KERNEL_XZ
diff -urdN linux-4.14.21/arch/s390/boot/compressed/Makefile linux-4.14.21.new/arch/s390/boot/compressed/Makefile
--- linux-4.14.21/arch/s390/boot/compressed/Makefile	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/arch/s390/boot/compressed/Makefile	2018-02-24 17:22:34.000000000 +0100
@@ -7,9 +7,9 @@
 
 KCOV_INSTRUMENT := n
 
-targets	:= vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2
-targets += vmlinux.bin.xz vmlinux.bin.lzma vmlinux.bin.lzo vmlinux.bin.lz4
-targets += misc.o piggy.o sizes.h head.o
+targets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2
+targets += vmlinux.bin.lz vmlinux.bin.xz vmlinux.bin.lzma vmlinux.bin.lzo
+targets += vmlinux.bin.lz4 misc.o piggy.o sizes.h head.o
 
 KBUILD_CFLAGS := -m64 -D__KERNEL__ -O2
 KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
@@ -51,6 +51,7 @@
 suffix-$(CONFIG_KERNEL_GZIP)  := gz
 suffix-$(CONFIG_KERNEL_BZIP2) := bz2
 suffix-$(CONFIG_KERNEL_LZ4)  := lz4
+suffix-$(CONFIG_KERNEL_LZIP)  := lz
 suffix-$(CONFIG_KERNEL_LZMA)  := lzma
 suffix-$(CONFIG_KERNEL_LZO)  := lzo
 suffix-$(CONFIG_KERNEL_XZ)  := xz
@@ -61,6 +62,8 @@
 	$(call if_changed,bzip2)
 $(obj)/vmlinux.bin.lz4: $(vmlinux.bin.all-y)
 	$(call if_changed,lz4)
+$(obj)/vmlinux.bin.lz: $(vmlinux.bin.all-y)
+	$(call if_changed,klzip)
 $(obj)/vmlinux.bin.lzma: $(vmlinux.bin.all-y)
 	$(call if_changed,lzma)
 $(obj)/vmlinux.bin.lzo: $(vmlinux.bin.all-y)
diff -urdN linux-4.14.21/arch/s390/boot/compressed/misc.c linux-4.14.21.new/arch/s390/boot/compressed/misc.c
--- linux-4.14.21/arch/s390/boot/compressed/misc.c	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/arch/s390/boot/compressed/misc.c	2018-02-24 17:22:34.000000000 +0100
@@ -53,6 +53,10 @@
 #include "../../../../lib/decompress_unlz4.c"
 #endif
 
+#ifdef CONFIG_KERNEL_LZIP
+#include "../../../../lib/decompress_lunzip.c"
+#endif
+
 #ifdef CONFIG_KERNEL_LZMA
 #include "../../../../lib/decompress_unlzma.c"
 #endif
diff -urdN linux-4.14.21/arch/sh/Kconfig linux-4.14.21.new/arch/sh/Kconfig
--- linux-4.14.21/arch/sh/Kconfig	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/arch/sh/Kconfig	2018-02-24 17:22:34.000000000 +0100
@@ -24,6 +24,7 @@
 	select HAVE_KERNEL_GZIP
 	select CPU_NO_EFFICIENT_FFS
 	select HAVE_KERNEL_BZIP2
+	select HAVE_KERNEL_LZIP
 	select HAVE_KERNEL_LZMA
 	select HAVE_KERNEL_XZ
 	select HAVE_KERNEL_LZO
diff -urdN linux-4.14.21/arch/sh/Makefile linux-4.14.21.new/arch/sh/Makefile
--- linux-4.14.21/arch/sh/Makefile	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/arch/sh/Makefile	2018-02-24 17:22:34.000000000 +0100
@@ -205,9 +205,9 @@
 libs-$(CONFIG_SUPERH32)		:= arch/sh/lib/	$(libs-y)
 libs-$(CONFIG_SUPERH64)		:= arch/sh/lib64/ $(libs-y)
 
-BOOT_TARGETS = uImage uImage.bz2 uImage.gz uImage.lzma uImage.xz uImage.lzo \
-	       uImage.srec uImage.bin zImage vmlinux.bin vmlinux.srec \
-	       romImage
+BOOT_TARGETS = uImage uImage.bz2 uImage.gz uImage.lz uImage.lzma uImage.xz \
+	       uImage.lzo uImage.srec uImage.bin zImage vmlinux.bin \
+	       vmlinux.srec romImage
 PHONY += $(BOOT_TARGETS)
 
 all: $(notdir $(KBUILD_IMAGE))
@@ -234,6 +234,7 @@
 	@echo '  uImage.bin	           - Kernel-only image for U-Boot (bin)'
 	@echo '* uImage.gz	           - Kernel-only image for U-Boot (gzip)'
 	@echo '  uImage.bz2	           - Kernel-only image for U-Boot (bzip2)'
+	@echo '  uImage.lz	           - Kernel-only image for U-Boot (lzip)'
 	@echo '  uImage.lzma	           - Kernel-only image for U-Boot (lzma)'
 	@echo '  uImage.xz	           - Kernel-only image for U-Boot (xz)'
 	@echo '  uImage.lzo	           - Kernel-only image for U-Boot (lzo)'
diff -urdN linux-4.14.21/arch/sh/boot/Makefile linux-4.14.21.new/arch/sh/boot/Makefile
--- linux-4.14.21/arch/sh/boot/Makefile	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/arch/sh/boot/Makefile	2018-02-24 17:22:34.000000000 +0100
@@ -22,14 +22,15 @@
 suffix-y := bin
 suffix-$(CONFIG_KERNEL_GZIP)	:= gz
 suffix-$(CONFIG_KERNEL_BZIP2)	:= bz2
+suffix-$(CONFIG_KERNEL_LZIP)	:= lz
 suffix-$(CONFIG_KERNEL_LZMA)	:= lzma
 suffix-$(CONFIG_KERNEL_XZ)	:= xz
 suffix-$(CONFIG_KERNEL_LZO)	:= lzo
 
 targets := zImage vmlinux.srec romImage uImage uImage.srec uImage.gz \
-	   uImage.bz2 uImage.lzma uImage.xz uImage.lzo uImage.bin
-extra-y += vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma \
-	   vmlinux.bin.xz vmlinux.bin.lzo
+	   uImage.bz2 uImage.lz uImage.lzma uImage.xz uImage.lzo uImage.bin
+extra-y += vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lz \
+	   vmlinux.bin.lzma vmlinux.bin.xz vmlinux.bin.lzo
 subdir- := compressed romimage
 
 $(obj)/zImage: $(obj)/compressed/vmlinux FORCE
@@ -71,6 +72,9 @@
 $(obj)/vmlinux.bin.bz2: $(obj)/vmlinux.bin FORCE
 	$(call if_changed,bzip2)
 
+$(obj)/vmlinux.bin.lz: $(obj)/vmlinux.bin FORCE
+	$(call if_changed,klzip)
+
 $(obj)/vmlinux.bin.lzma: $(obj)/vmlinux.bin FORCE
 	$(call if_changed,lzma)
 
@@ -86,6 +90,9 @@
 $(obj)/uImage.gz: $(obj)/vmlinux.bin.gz
 	$(call if_changed,uimage,gzip)
 
+$(obj)/uImage.lz: $(obj)/vmlinux.bin.lz
+	$(call if_changed,uimage,lzip)
+
 $(obj)/uImage.lzma: $(obj)/vmlinux.bin.lzma
 	$(call if_changed,uimage,lzma)
 
diff -urdN linux-4.14.21/arch/sh/boot/compressed/Makefile linux-4.14.21.new/arch/sh/boot/compressed/Makefile
--- linux-4.14.21/arch/sh/boot/compressed/Makefile	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/arch/sh/boot/compressed/Makefile	2018-02-24 17:22:34.000000000 +0100
@@ -5,10 +5,9 @@
 # create a compressed vmlinux image from the original vmlinux
 #
 
-targets		:= vmlinux vmlinux.bin vmlinux.bin.gz \
-		   vmlinux.bin.bz2 vmlinux.bin.lzma \
-		   vmlinux.bin.xz vmlinux.bin.lzo \
-		   head_$(BITS).o misc.o piggy.o
+targets := vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 \
+	   vmlinux.bin.lz vmlinux.bin.lzma vmlinux.bin.xz vmlinux.bin.lzo \
+	   head_$(BITS).o misc.o piggy.o
 
 OBJECTS = $(obj)/head_$(BITS).o $(obj)/misc.o $(obj)/cache.o
 
@@ -66,6 +65,8 @@
 	$(call if_changed,gzip)
 $(obj)/vmlinux.bin.bz2: $(vmlinux.bin.all-y) FORCE
 	$(call if_changed,bzip2)
+$(obj)/vmlinux.bin.lz: $(vmlinux.bin.all-y) FORCE
+	$(call if_changed,klzip)
 $(obj)/vmlinux.bin.lzma: $(vmlinux.bin.all-y) FORCE
 	$(call if_changed,lzma)
 $(obj)/vmlinux.bin.xz: $(vmlinux.bin.all-y) FORCE
diff -urdN linux-4.14.21/arch/sh/boot/compressed/misc.c linux-4.14.21.new/arch/sh/boot/compressed/misc.c
--- linux-4.14.21/arch/sh/boot/compressed/misc.c	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/arch/sh/boot/compressed/misc.c	2018-02-24 17:22:34.000000000 +0100
@@ -58,6 +58,10 @@
 #include "../../../../lib/decompress_bunzip2.c"
 #endif
 
+#ifdef CONFIG_KERNEL_LZIP
+#include "../../../../lib/decompress_lunzip.c"
+#endif
+
 #ifdef CONFIG_KERNEL_LZMA
 #include "../../../../lib/decompress_unlzma.c"
 #endif
diff -urdN linux-4.14.21/arch/unicore32/.gitignore linux-4.14.21.new/arch/unicore32/.gitignore
--- linux-4.14.21/arch/unicore32/.gitignore	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/arch/unicore32/.gitignore	2018-02-24 17:22:34.000000000 +0100
@@ -17,5 +17,9 @@
 #
 boot/compressed/piggy.S
 boot/compressed/piggy.gzip
+boot/compressed/piggy.bz2
+boot/compressed/piggy.lzip
+boot/compressed/piggy.lzma
+boot/compressed/piggy.lzo
 boot/compressed/vmlinux
 boot/compressed/vmlinux.lds
diff -urdN linux-4.14.21/arch/unicore32/Kconfig linux-4.14.21.new/arch/unicore32/Kconfig
--- linux-4.14.21/arch/unicore32/Kconfig	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/arch/unicore32/Kconfig	2018-02-24 17:22:34.000000000 +0100
@@ -8,6 +8,7 @@
 	select HAVE_GENERIC_DMA_COHERENT
 	select HAVE_KERNEL_GZIP
 	select HAVE_KERNEL_BZIP2
+	select HAVE_KERNEL_LZIP
 	select GENERIC_ATOMIC64
 	select HAVE_KERNEL_LZO
 	select HAVE_KERNEL_LZMA
diff -urdN linux-4.14.21/arch/unicore32/boot/compressed/Makefile linux-4.14.21.new/arch/unicore32/boot/compressed/Makefile
--- linux-4.14.21/arch/unicore32/boot/compressed/Makefile	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/arch/unicore32/boot/compressed/Makefile	2018-02-24 17:22:34.000000000 +0100
@@ -23,6 +23,7 @@
 # piggy.S and piggy.o
 suffix_$(CONFIG_KERNEL_GZIP)	:= gzip
 suffix_$(CONFIG_KERNEL_BZIP2)	:= bz2
+suffix_$(CONFIG_KERNEL_LZIP)	:= lzip
 suffix_$(CONFIG_KERNEL_LZO)	:= lzo
 suffix_$(CONFIG_KERNEL_LZMA)	:= lzma
 
@@ -36,10 +37,10 @@
 $(obj)/piggy.o:  $(obj)/piggy.$(suffix_y) $(obj)/piggy.S FORCE
 
 targets		:= vmlinux vmlinux.lds font.o font.c head.o misc.o \
-			piggy.$(suffix_y) piggy.o piggy.S \
+			piggy.$(suffix_y) piggy.o piggy.S
 
 # Make sure files are removed during clean
-extra-y		+= piggy.gzip piggy.bz2 piggy.lzo piggy.lzma
+extra-y		+= piggy.gzip piggy.bz2 piggy.lzip piggy.lzo piggy.lzma
 
 # ?
 LDFLAGS_vmlinux += -p
diff -urdN linux-4.14.21/arch/unicore32/boot/compressed/misc.c linux-4.14.21.new/arch/unicore32/boot/compressed/misc.c
--- linux-4.14.21/arch/unicore32/boot/compressed/misc.c	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/arch/unicore32/boot/compressed/misc.c	2018-02-24 17:22:34.000000000 +0100
@@ -95,6 +95,10 @@
 #include "../../../../lib/decompress_bunzip2.c"
 #endif
 
+#ifdef CONFIG_KERNEL_LZIP
+#include "../../../../lib/decompress_lunzip.c"
+#endif
+
 #ifdef CONFIG_KERNEL_LZO
 #include "../../../../lib/decompress_unlzo.c"
 #endif
diff -urdN linux-4.14.21/arch/x86/Kconfig linux-4.14.21.new/arch/x86/Kconfig
--- linux-4.14.21/arch/x86/Kconfig	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/arch/x86/Kconfig	2018-02-24 17:22:34.000000000 +0100
@@ -148,6 +148,7 @@
 	select HAVE_KERNEL_BZIP2
 	select HAVE_KERNEL_GZIP
 	select HAVE_KERNEL_LZ4
+	select HAVE_KERNEL_LZIP
 	select HAVE_KERNEL_LZMA
 	select HAVE_KERNEL_LZO
 	select HAVE_KERNEL_XZ
diff -urdN linux-4.14.21/arch/x86/boot/compressed/Makefile linux-4.14.21.new/arch/x86/boot/compressed/Makefile
--- linux-4.14.21/arch/x86/boot/compressed/Makefile	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/arch/x86/boot/compressed/Makefile	2018-02-24 17:22:34.000000000 +0100
@@ -23,8 +23,8 @@
 # Prevents link failures: __sanitizer_cov_trace_pc() is not linked in.
 KCOV_INSTRUMENT		:= n
 
-targets := vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma \
-	vmlinux.bin.xz vmlinux.bin.lzo vmlinux.bin.lz4
+targets := vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lz \
+	   vmlinux.bin.lzma vmlinux.bin.xz vmlinux.bin.lzo vmlinux.bin.lz4
 
 KBUILD_CFLAGS := -m$(BITS) -D__KERNEL__ -O2
 KBUILD_CFLAGS += -fno-strict-aliasing $(call cc-option, -fPIE, -fPIC)
@@ -127,6 +127,8 @@
 	$(call if_changed,gzip)
 $(obj)/vmlinux.bin.bz2: $(vmlinux.bin.all-y) FORCE
 	$(call if_changed,bzip2)
+$(obj)/vmlinux.bin.lz: $(vmlinux.bin.all-y) FORCE
+	$(call if_changed,klzip)
 $(obj)/vmlinux.bin.lzma: $(vmlinux.bin.all-y) FORCE
 	$(call if_changed,lzma)
 $(obj)/vmlinux.bin.xz: $(vmlinux.bin.all-y) FORCE
@@ -138,6 +140,7 @@
 
 suffix-$(CONFIG_KERNEL_GZIP)	:= gz
 suffix-$(CONFIG_KERNEL_BZIP2)	:= bz2
+suffix-$(CONFIG_KERNEL_LZIP)	:= lz
 suffix-$(CONFIG_KERNEL_LZMA)	:= lzma
 suffix-$(CONFIG_KERNEL_XZ)	:= xz
 suffix-$(CONFIG_KERNEL_LZO) 	:= lzo
diff -urdN linux-4.14.21/arch/x86/boot/compressed/misc.c linux-4.14.21.new/arch/x86/boot/compressed/misc.c
--- linux-4.14.21/arch/x86/boot/compressed/misc.c	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/arch/x86/boot/compressed/misc.c	2018-02-24 17:22:34.000000000 +0100
@@ -60,6 +60,10 @@
 #include "../../../../lib/decompress_bunzip2.c"
 #endif
 
+#ifdef CONFIG_KERNEL_LZIP
+#include "../../../../lib/decompress_lunzip.c"
+#endif
+
 #ifdef CONFIG_KERNEL_LZMA
 #include "../../../../lib/decompress_unlzma.c"
 #endif
diff -urdN linux-4.14.21/include/linux/decompress/lunzip.h linux-4.14.21.new/include/linux/decompress/lunzip.h
--- linux-4.14.21/include/linux/decompress/lunzip.h	1970-01-01 01:00:00.000000000 +0100
+++ linux-4.14.21.new/include/linux/decompress/lunzip.h	2018-02-24 17:22:34.000000000 +0100
@@ -0,0 +1,10 @@
+#ifndef LINUX_DECOMPRESS_LUNZIP_H
+#define LINUX_DECOMPRESS_LUNZIP_H
+
+int lunzip(unsigned char *inbuf, long in_len,
+	   long (*fill)(void*, unsigned long),
+	   long (*flush)(void*, unsigned long),
+	   unsigned char *outbuf,
+	   long *in_posp,
+	   void (*error)(char *x));
+#endif
diff -urdN linux-4.14.21/init/Kconfig linux-4.14.21.new/init/Kconfig
--- linux-4.14.21/init/Kconfig	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/init/Kconfig	2018-02-24 17:22:34.000000000 +0100
@@ -115,6 +115,9 @@
 config HAVE_KERNEL_BZIP2
 	bool
 
+config HAVE_KERNEL_LZIP
+	bool
+
 config HAVE_KERNEL_LZMA
 	bool
 
@@ -130,7 +133,7 @@
 choice
 	prompt "Kernel compression mode"
 	default KERNEL_GZIP
-	depends on HAVE_KERNEL_GZIP || HAVE_KERNEL_BZIP2 || HAVE_KERNEL_LZMA || HAVE_KERNEL_XZ || HAVE_KERNEL_LZO || HAVE_KERNEL_LZ4
+	depends on HAVE_KERNEL_GZIP || HAVE_KERNEL_BZIP2 || HAVE_KERNEL_LZIP || HAVE_KERNEL_LZMA || HAVE_KERNEL_XZ || HAVE_KERNEL_LZO || HAVE_KERNEL_LZ4
 	help
 	  The linux kernel is a kind of self-extracting executable.
 	  Several compression algorithms are available, which differ
@@ -166,6 +169,15 @@
 	  Bzip2 uses a large amount of memory. For modern kernels you
 	  will need at least 8MB RAM or more for booting.
 
+config KERNEL_LZIP
+	bool "Lzip"
+	depends on HAVE_KERNEL_LZIP
+	help
+	  Lzip's compression ratio is better than that of gzip and bzip2.
+	  Decompression speed is between gzip and bzip2.  Compression can
+	  be as fast as gzip or slower than bzip2 depending on compression
+	  level.  Lzip can produce a kernel about a 16% smaller than gzip.
+
 config KERNEL_LZMA
 	bool "LZMA"
 	depends on HAVE_KERNEL_LZMA
@@ -1834,8 +1846,8 @@
 	depends on MODULES
 	help
 
-	  Compresses kernel modules when 'make modules_install' is run; gzip or
-	  xz depending on "Compression algorithm" below.
+	  Compresses kernel modules when 'make modules_install' is run; gzip,
+	  lzip or xz are used depending on "Compression algorithm" below.
 
 	  module-init-tools MAY support gzip, and kmod MAY support gzip and xz.
 
@@ -1857,11 +1869,14 @@
 	  This determines which sort of compression will be used during
 	  'make modules_install'.
 
-	  GZIP (default) and XZ are supported.
+	  GZIP (default), LZIP and XZ are supported.
 
 config MODULE_COMPRESS_GZIP
 	bool "GZIP"
 
+config MODULE_COMPRESS_LZIP
+	bool "LZIP"
+
 config MODULE_COMPRESS_XZ
 	bool "XZ"
 
diff -urdN linux-4.14.21/init/do_mounts_rd.c linux-4.14.21.new/init/do_mounts_rd.c
--- linux-4.14.21/init/do_mounts_rd.c	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/init/do_mounts_rd.c	2018-02-24 17:22:34.000000000 +0100
@@ -59,6 +59,7 @@
  *	squashfs
  *	gzip
  *	bzip2
+ *	lzip
  *	lzma
  *	xz
  *	lzo
diff -urdN linux-4.14.21/lib/Kconfig linux-4.14.21.new/lib/Kconfig
--- linux-4.14.21/lib/Kconfig	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/lib/Kconfig	2018-02-24 17:22:34.000000000 +0100
@@ -270,6 +270,9 @@
 config DECOMPRESS_BZIP2
 	tristate
 
+config DECOMPRESS_LZIP
+	tristate
+
 config DECOMPRESS_LZMA
 	tristate
 
diff -urdN linux-4.14.21/lib/Makefile linux-4.14.21.new/lib/Makefile
--- linux-4.14.21/lib/Makefile	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/lib/Makefile	2018-02-24 17:22:34.000000000 +0100
@@ -125,6 +125,7 @@
 
 lib-$(CONFIG_DECOMPRESS_GZIP) += decompress_inflate.o
 lib-$(CONFIG_DECOMPRESS_BZIP2) += decompress_bunzip2.o
+lib-$(CONFIG_DECOMPRESS_LZIP) += decompress_lunzip.o
 lib-$(CONFIG_DECOMPRESS_LZMA) += decompress_unlzma.o
 lib-$(CONFIG_DECOMPRESS_XZ) += decompress_unxz.o
 lib-$(CONFIG_DECOMPRESS_LZO) += decompress_unlzo.o
diff -urdN linux-4.14.21/lib/decompress.c linux-4.14.21.new/lib/decompress.c
--- linux-4.14.21/lib/decompress.c	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/lib/decompress.c	2018-02-24 17:22:34.000000000 +0100
@@ -8,6 +8,7 @@
 #include <linux/decompress/generic.h>
 
 #include <linux/decompress/bunzip2.h>
+#include <linux/decompress/lunzip.h>
 #include <linux/decompress/unlzma.h>
 #include <linux/decompress/unxz.h>
 #include <linux/decompress/inflate.h>
@@ -25,6 +26,9 @@
 #ifndef CONFIG_DECOMPRESS_BZIP2
 # define bunzip2 NULL
 #endif
+#ifndef CONFIG_DECOMPRESS_LZIP
+# define lunzip NULL
+#endif
 #ifndef CONFIG_DECOMPRESS_LZMA
 # define unlzma NULL
 #endif
@@ -48,6 +52,7 @@
 	{ {0x1f, 0x8b}, "gzip", gunzip },
 	{ {0x1f, 0x9e}, "gzip", gunzip },
 	{ {0x42, 0x5a}, "bzip2", bunzip2 },
+	{ {0x4c, 0x5a}, "lzip", lunzip },
 	{ {0x5d, 0x00}, "lzma", unlzma },
 	{ {0xfd, 0x37}, "xz", unxz },
 	{ {0x89, 0x4c}, "lzo", unlzo },
diff -urdN linux-4.14.21/lib/decompress_lunzip.c linux-4.14.21.new/lib/decompress_lunzip.c
--- linux-4.14.21/lib/decompress_lunzip.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-4.14.21.new/lib/decompress_lunzip.c	2018-02-24 17:22:34.000000000 +0100
@@ -0,0 +1,795 @@
+/*
+ * lunzip implementation for linux
+ *
+ * Copyright (C) 2016, 2017 Antonio Diaz Diaz.
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
+ */
+
+#ifdef STATIC
+#define PREBOOT
+#else
+#include <linux/decompress/lunzip.h>
+#endif
+
+#include <linux/decompress/mm.h>
+
+typedef int State;
+
+enum { states = 12 };
+
+static inline bool St_is_char(const State st) { return st < 7; }
+
+static inline State St_set_char(const State st)
+{
+	static const State next[states] = { 0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 4, 5 };
+	return next[st];
+}
+
+static inline State St_set_match(const State st)
+{
+	return ((st < 7) ? 7 : 10);
+}
+
+static inline State St_set_rep(const State st)
+{
+	return ((st < 7) ? 8 : 11);
+}
+
+static inline State St_set_short_rep(const State st)
+{
+	return ((st < 7) ? 9 : 11);
+}
+
+
+enum {
+	min_dictionary_bits = 12,
+	min_dictionary_size = 1 << min_dictionary_bits,
+	max_dictionary_bits = 29,
+	max_dictionary_size = 1 << max_dictionary_bits,
+	literal_context_bits = 3,
+	pos_state_bits = 2,
+	pos_states = 1 << pos_state_bits,
+	pos_state_mask = pos_states - 1,
+
+	len_states = 4,
+	dis_slot_bits = 6,
+	start_dis_model = 4,
+	end_dis_model = 14,
+	modeled_distances = 1 << (end_dis_model / 2),	/* 128 */
+	dis_align_bits = 4,
+	dis_align_size = 1 << dis_align_bits,
+
+	len_low_bits = 3,
+	len_mid_bits = 3,
+	len_high_bits = 8,
+	len_low_symbols = 1 << len_low_bits,
+	len_mid_symbols = 1 << len_mid_bits,
+	len_high_symbols = 1 << len_high_bits,
+	max_len_symbols = len_low_symbols + len_mid_symbols + len_high_symbols,
+
+	min_match_len = 2,					/* must be 2 */
+	max_match_len = min_match_len + max_len_symbols - 1,	/* 273 */
+	min_match_len_limit = 5
+};
+
+static inline int get_len_state(const int len)
+{
+	return min(len - min_match_len, len_states - 1);
+}
+
+static inline int get_lit_state(const uint8_t prev_byte)
+{
+	return (prev_byte >> (8 - literal_context_bits));
+}
+
+
+enum { bit_model_move_bits = 5,
+	bit_model_total_bits = 11,
+	bit_model_total = 1 << bit_model_total_bits
+};
+
+typedef uint16_t Bit_model;
+
+static inline void Bm_init(Bit_model * const probability)
+{
+	*probability = bit_model_total / 2;
+}
+
+static inline void Bm_array_init(Bit_model * const p, const int size)
+{
+	int i = 0;
+
+	while (i < size)
+		p[i++] = bit_model_total / 2;
+}
+
+struct Len_model {
+	Bit_model choice1;
+	Bit_model choice2;
+	Bit_model bm_low[pos_states][len_low_symbols];
+	Bit_model bm_mid[pos_states][len_mid_symbols];
+	Bit_model bm_high[len_high_symbols];
+};
+
+static inline void Lm_init(struct Len_model * const lm)
+{
+	Bm_init(&lm->choice1);
+	Bm_init(&lm->choice2);
+	Bm_array_init(lm->bm_low[0], pos_states * len_low_symbols);
+	Bm_array_init(lm->bm_mid[0], pos_states * len_mid_symbols);
+	Bm_array_init(lm->bm_high, len_high_symbols);
+}
+
+
+typedef uint32_t CRC32[256];	/* Table of CRCs of all 8-bit messages. */
+
+static CRC32 crc32;
+
+static inline void CRC32_init(void)
+{
+	unsigned n;
+
+	for (n = 0; n < 256; ++n) {
+		unsigned c = n;
+		int k;
+
+		for (k = 0; k < 8; ++k) {
+			if (c & 1)
+				c = 0xEDB88320U ^ (c >> 1);
+			else
+				c >>= 1;
+		}
+		crc32[n] = c;
+	}
+}
+
+static inline void CRC32_update_buf(uint32_t * const crc,
+					const uint8_t * const buffer,
+					const long size)
+{
+	long i;
+	uint32_t c = *crc;
+
+	for (i = 0; i < size; ++i)
+		c = crc32[(c^buffer[i])&0xFF] ^ (c >> 8);
+	*crc = c;
+}
+
+
+static const uint8_t magic_string[4] = { 0x4C, 0x5A, 0x49, 0x50 }; /* "LZIP" */
+
+typedef uint8_t File_header[6];		/* 0-3 magic bytes */
+					/*   4 version */
+					/*   5 coded_dict_size */
+enum { Fh_size = 6 };
+
+static inline bool Fh_verify_magic(const File_header data)
+{
+	int i;
+
+	for (i = 0; i < 4; ++i)
+		if (data[i] != magic_string[i])
+			return false;
+	return (data[4] == 1);
+}
+
+static inline unsigned Fh_get_dictionary_size(const File_header data)
+{
+	unsigned sz = (1 << (data[5] & 0x1F));
+
+	if (sz > min_dictionary_size)
+		sz -= (sz / 16) * ((data[5] >> 5) & 7);
+	return sz;
+}
+
+
+typedef uint8_t File_trailer[20];
+			/*  0-3  CRC32 of the uncompressed data */
+			/*  4-11 size of the uncompressed data */
+			/* 12-19 member size including header and trailer */
+
+enum { Ft_size = 20 };
+
+static inline unsigned Ft_get_data_crc(const File_trailer data)
+{
+	unsigned tmp = 0;
+	int i;
+
+	for (i = 3; i >= 0; --i) {
+		tmp <<= 8;
+		tmp += data[i];
+	}
+	return tmp;
+}
+
+static inline unsigned long long Ft_get_data_size(const File_trailer data)
+{
+	unsigned long long tmp = 0;
+	int i;
+
+	for (i = 11; i >= 4; --i) {
+		tmp <<= 8;
+		tmp += data[i];
+	}
+	return tmp;
+}
+
+static inline unsigned long long Ft_get_member_size(const File_trailer data)
+{
+	unsigned long long tmp = 0;
+	int i;
+
+	for (i = 19; i >= 12; --i) {
+		tmp <<= 8;
+		tmp += data[i];
+	}
+	return tmp;
+}
+
+
+struct Range_decoder {
+	unsigned long long partial_member_pos;
+	uint8_t *buffer;	/* input buffer */
+	long buffer_size;
+	long pos;		/* current pos in buffer */
+	long stream_pos;	/* when reached, a new block must be read */
+	uint32_t code;
+	uint32_t range;
+	long (*fill)(void*, unsigned long);
+	bool at_stream_end;
+	bool buffer_given;
+};
+
+
+static bool Rd_read_block(struct Range_decoder * const rdec)
+{
+	if (!rdec->at_stream_end) {
+		rdec->stream_pos = rdec->fill ?
+			rdec->fill(rdec->buffer, rdec->buffer_size) : 0;
+		rdec->at_stream_end = (rdec->stream_pos < rdec->buffer_size);
+		rdec->partial_member_pos += rdec->pos;
+		rdec->pos = 0;
+	}
+	return rdec->pos < rdec->stream_pos;
+}
+
+
+static bool Rd_init(struct Range_decoder * const rdec, uint8_t * const inbuf,
+			const long in_len, long (*fill)(void*, unsigned long))
+{
+	rdec->partial_member_pos = 0;
+	rdec->buffer_size = (inbuf && in_len > 0) ? in_len : 16384;
+	rdec->buffer = inbuf ? inbuf : malloc(rdec->buffer_size);
+	if (!rdec->buffer)
+		return false;
+	rdec->pos = 0;
+	rdec->stream_pos = (inbuf && in_len > 0) ? in_len : 0;
+	rdec->code = 0;
+	rdec->range = 0xFFFFFFFFU;
+	rdec->fill = fill;
+	rdec->at_stream_end = false;
+	rdec->buffer_given = (inbuf != 0);
+	return true;
+}
+
+static inline void Rd_free(struct Range_decoder * const rdec)
+{
+	if (!rdec->buffer_given)
+		free(rdec->buffer);
+}
+
+static inline bool Rd_finished(struct Range_decoder * const rdec)
+{
+	return rdec->pos >= rdec->stream_pos && !Rd_read_block(rdec);
+}
+
+static inline unsigned long long
+Rd_member_position(const struct Range_decoder * const rdec)
+{
+	return rdec->partial_member_pos + rdec->pos;
+}
+
+static inline void Rd_reset_member_position(struct Range_decoder * const rdec)
+{
+	rdec->partial_member_pos = 0; rdec->partial_member_pos -= rdec->pos;
+}
+
+static inline uint8_t Rd_get_byte(struct Range_decoder * const rdec)
+{
+	/* 0xFF avoids decoder error if member is truncated at EOS marker */
+	if (Rd_finished(rdec))
+		return 0xFF;
+	return rdec->buffer[rdec->pos++];
+}
+
+static void Rd_load(struct Range_decoder * const rdec)
+{
+	int i;
+
+	rdec->code = 0;
+	for (i = 0; i < 5; ++i)
+		rdec->code = (rdec->code << 8) | Rd_get_byte(rdec);
+	rdec->range = 0xFFFFFFFFU;
+}
+
+static inline void Rd_normalize(struct Range_decoder * const rdec)
+{
+	if (rdec->range <= 0x00FFFFFFU) {
+		rdec->range <<= 8;
+		rdec->code = (rdec->code << 8) | Rd_get_byte(rdec);
+	}
+}
+
+static uint32_t Rd_decode(struct Range_decoder * const rdec,
+				const uint32_t num_bits)
+{
+	uint32_t symbol = 0;
+	uint32_t i;
+
+	for (i = num_bits; i > 0; --i) {
+		bool bit;
+
+		Rd_normalize(rdec);
+		rdec->range >>= 1;
+		/* symbol <<= 1; */
+		/* if(rdec->code >= rdec->range) { rdec->code -= rdec->range; symbol |= 1; } */
+		bit = (rdec->code >= rdec->range);
+		symbol = (symbol << 1) + bit;
+		rdec->code -= rdec->range & (0U - bit);
+	}
+	return symbol;
+}
+
+static inline uint32_t Rd_decode_bit(struct Range_decoder * const rdec,
+					Bit_model * const probability)
+{
+	uint32_t bound;
+
+	Rd_normalize(rdec);
+	bound = (rdec->range >> bit_model_total_bits) * *probability;
+	if (rdec->code < bound) {
+		rdec->range = bound;
+		*probability += (bit_model_total - *probability) >> bit_model_move_bits;
+		return 0;
+	} else {
+		rdec->range -= bound;
+		rdec->code -= bound;
+		*probability -= *probability >> bit_model_move_bits;
+		return 1;
+	}
+}
+
+static inline uint32_t Rd_decode_tree(struct Range_decoder * const rdec,
+				Bit_model bm[], const uint32_t num_bits)
+{
+	uint32_t symbol = 1;
+	uint32_t i;
+
+	for (i = num_bits; i > 0; --i)
+		symbol = (symbol << 1) | Rd_decode_bit(rdec, &bm[symbol]);
+	return symbol - (1 << num_bits);
+}
+
+static inline uint32_t Rd_decode_tree_reversed(struct Range_decoder * const rdec,
+					Bit_model bm[], const uint32_t num_bits)
+{
+	uint32_t model = 1;
+	uint32_t symbol = 0;
+	uint32_t i;
+
+	for (i = 0; i < num_bits; ++i) {
+		const uint32_t bit = Rd_decode_bit(rdec, &bm[model]);
+
+		model = (model << 1) + bit;
+		symbol |= (bit << i);
+	}
+	return symbol;
+}
+
+static uint32_t Rd_decode_matched(struct Range_decoder * const rdec,
+				Bit_model bm[], uint32_t match_byte)
+{
+	uint32_t symbol = 1;
+	uint32_t mask = 0x100;
+
+	while (true) {
+		const uint32_t match_bit = (match_byte <<= 1) & mask;
+		const uint32_t bit = Rd_decode_bit(rdec, &bm[symbol+match_bit+mask]);
+
+		symbol = (symbol << 1) + bit;
+		if (symbol > 0xFF)
+			return symbol & 0xFF;
+		mask &= ~(match_bit ^ (bit << 8));	/* if( match_bit != bit ) mask = 0; */
+	}
+}
+
+static inline uint32_t Rd_decode_len(struct Range_decoder * const rdec,
+						struct Len_model * const lm,
+						const int pos_state)
+{
+	if (Rd_decode_bit(rdec, &lm->choice1) == 0)
+		return Rd_decode_tree(rdec, lm->bm_low[pos_state], len_low_bits);
+	if (Rd_decode_bit(rdec, &lm->choice2) == 0)
+		return len_low_symbols +
+			Rd_decode_tree(rdec, lm->bm_mid[pos_state], len_mid_bits);
+	return len_low_symbols + len_mid_symbols +
+		Rd_decode_tree(rdec, lm->bm_high, len_high_bits);
+}
+
+
+struct LZ_decoder {
+	unsigned long long partial_data_pos;
+	struct Range_decoder *rdec;
+	/* Don't move bm_* to LZd_decode_member; makes frame too large. */
+	Bit_model bm_literal[1 << literal_context_bits][0x300];
+	Bit_model bm_match[states][pos_states];
+	Bit_model bm_rep[states];
+	Bit_model bm_rep0[states];
+	Bit_model bm_rep1[states];
+	Bit_model bm_rep2[states];
+	Bit_model bm_len[states][pos_states];
+	Bit_model bm_dis_slot[len_states][1 << dis_slot_bits];
+	Bit_model bm_dis[modeled_distances-end_dis_model+1];
+	Bit_model bm_align[dis_align_size];
+	struct Len_model match_len_model;
+	struct Len_model rep_len_model;
+
+	unsigned long buffer_size;
+	uint32_t dictionary_size;
+	uint8_t *buffer;	/* output buffer */
+	unsigned long pos;	/* current pos in buffer */
+	unsigned long stream_pos;	/* first byte not yet written to file */
+	uint32_t crc;
+	long (*flush)(void*, unsigned long);
+	bool pos_wrapped;
+	bool buffer_given;
+	bool write_error;
+};
+
+static void LZd_flush_data(struct LZ_decoder * const d)
+{
+	if (d->pos > d->stream_pos) {
+		const long size = d->pos - d->stream_pos;
+
+		CRC32_update_buf(&d->crc, d->buffer + d->stream_pos, size);
+		if ((d->flush &&
+		     d->flush(d->buffer + d->stream_pos, size) != size) ||
+		    (!d->flush && d->pos_wrapped))
+			d->write_error = true;
+		if (d->pos >= d->buffer_size) {
+			d->partial_data_pos += d->pos;
+			d->pos = 0;
+			d->pos_wrapped = true;
+		}
+		d->stream_pos = d->pos;
+	}
+}
+
+static inline uint8_t LZd_peek_prev(const struct LZ_decoder * const d)
+{
+	if (d->pos > 0)
+		return d->buffer[d->pos-1];
+	if (d->pos_wrapped)
+		return d->buffer[d->buffer_size-1];
+	return 0;			/* prev_byte of first byte */
+}
+
+static inline uint8_t LZd_peek(const struct LZ_decoder * const d,
+				const uint32_t distance)
+{
+	const unsigned long i = ((d->pos > distance) ? 0 : d->buffer_size) +
+				d->pos - distance - 1;
+	return d->buffer[i];
+}
+
+static inline void LZd_put_byte(struct LZ_decoder * const d, const uint8_t b)
+{
+	d->buffer[d->pos] = b;
+	if (++d->pos >= d->buffer_size)
+		LZd_flush_data(d);
+}
+
+static void LZd_copy_block(struct LZ_decoder * const d,
+				const uint32_t distance, uint32_t len)
+{
+	unsigned long lpos = d->pos, i = lpos - distance - 1;
+	bool fast, fast2;
+
+	if (lpos > distance) {
+		fast = (len < d->buffer_size - lpos);
+		fast2 = (fast && len <= lpos - i);
+	} else {
+		i += d->buffer_size;
+		fast = (len < d->buffer_size - i);	/* (i == pos) may happen */
+		fast2 = (fast && len <= i - lpos);
+	}
+	if (fast) {				/* no wrap */
+		d->pos += len;
+		if (fast2)			/* no wrap, no overlap */
+			memcpy(d->buffer + lpos, d->buffer + i, len);
+		else
+			for (; len > 0; --len)
+				d->buffer[lpos++] = d->buffer[i++];
+	} else
+		for (; len > 0; --len) {
+			d->buffer[d->pos] = d->buffer[i];
+			if (++d->pos >= d->buffer_size)
+				LZd_flush_data(d);
+			if (++i >= d->buffer_size)
+				i = 0;
+		}
+}
+
+static bool LZd_init(struct LZ_decoder * const d,
+			struct Range_decoder * const rde,
+			const uint32_t dict_size, uint8_t * const outbuf,
+			long out_size, long (*flush)(void*, unsigned long))
+{
+	d->partial_data_pos = 0;
+	d->rdec = rde;
+	Bm_array_init(d->bm_literal[0], (1 << literal_context_bits) * 0x300);
+	Bm_array_init(d->bm_match[0], states * pos_states);
+	Bm_array_init(d->bm_rep, states);
+	Bm_array_init(d->bm_rep0, states);
+	Bm_array_init(d->bm_rep1, states);
+	Bm_array_init(d->bm_rep2, states);
+	Bm_array_init(d->bm_len[0], states * pos_states);
+	Bm_array_init(d->bm_dis_slot[0], len_states * (1 << dis_slot_bits));
+	Bm_array_init(d->bm_dis, modeled_distances - end_dis_model + 1);
+	Bm_array_init(d->bm_align, dis_align_size);
+	Lm_init(&d->match_len_model);
+	Lm_init(&d->rep_len_model);
+
+	d->buffer_size = (outbuf && out_size > 0) ? out_size : dict_size;
+	d->dictionary_size = min_t(unsigned long, d->buffer_size, dict_size);
+	d->buffer = outbuf ? outbuf : large_malloc(d->buffer_size);
+	if (!d->buffer)
+		return false;
+	d->pos = 0;
+	d->stream_pos = 0;
+	d->crc = 0xFFFFFFFFU;
+	d->flush = flush;
+	d->pos_wrapped = false;
+	d->buffer_given = (outbuf != 0);
+	d->write_error = false;
+	return true;
+}
+
+static inline void LZd_free(struct LZ_decoder * const d)
+{
+	if (!d->buffer_given)
+		large_free(d->buffer);
+}
+
+static inline uint32_t LZd_crc(const struct LZ_decoder * const d)
+{
+	return d->crc ^ 0xFFFFFFFFU;
+}
+
+static inline unsigned long long
+LZd_data_position(const struct LZ_decoder * const d)
+{
+	return d->partial_data_pos + d->pos;
+}
+
+
+static bool LZd_verify_trailer(struct LZ_decoder * const d)
+{
+	File_trailer trailer;
+	int i = 0;
+
+	while (i < Ft_size)
+		trailer[i++] = Rd_get_byte(d->rdec);
+
+	return (Ft_get_data_crc(trailer) == LZd_crc(d) &&
+		Ft_get_data_size(trailer) == LZd_data_position(d) &&
+		Ft_get_member_size(trailer) == Rd_member_position(d->rdec));
+}
+
+
+/* Return value: -1 = write error, 0 = OK, 1 = data error. */
+static int LZd_decode_member(struct LZ_decoder * const d)
+{
+	struct Range_decoder * const rdec = d->rdec;
+	uint32_t rep0 = 0;	/* rep[0-3] latest four distances */
+	uint32_t rep1 = 0;	/* used for efficient coding of */
+	uint32_t rep2 = 0;	/* repeated distances */
+	uint32_t rep3 = 0;
+	State state = 0;
+
+	Rd_load(rdec);
+	while (!Rd_finished(rdec)) {
+		const int pos_state = LZd_data_position(d) & pos_state_mask;
+
+		if (Rd_decode_bit(rdec, &d->bm_match[state][pos_state]) == 0) {
+			Bit_model * const bm = d->bm_literal[get_lit_state(LZd_peek_prev(d))];
+
+			if (St_is_char(state)) {
+				state -= (state < 4) ? state : 3;
+				LZd_put_byte(d, Rd_decode_tree(rdec, bm, 8));
+			} else {
+				state -= (state < 10) ? 3 : 6;
+				LZd_put_byte(d, Rd_decode_matched(rdec, bm, LZd_peek(d, rep0)));
+			}
+		} else {			/* match or repeated match */
+			uint32_t len;
+
+			if (Rd_decode_bit(rdec, &d->bm_rep[state]) != 0) {
+				if (Rd_decode_bit(rdec, &d->bm_rep0[state]) == 0) {
+					if (Rd_decode_bit(rdec, &d->bm_len[state][pos_state]) == 0) {
+						state = St_set_short_rep(state);
+						LZd_put_byte(d, LZd_peek(d, rep0));
+						continue;
+					}
+				} else {
+					uint32_t distance;
+
+					if (Rd_decode_bit(rdec, &d->bm_rep1[state]) == 0)
+						distance = rep1;
+					else {
+						if (Rd_decode_bit(rdec, &d->bm_rep2[state]) == 0)
+							distance = rep2;
+						else {
+							distance = rep3;
+							rep3 = rep2;
+						}
+						rep2 = rep1;
+					}
+					rep1 = rep0;
+					rep0 = distance;
+				}
+				state = St_set_rep(state);
+				len = min_match_len + Rd_decode_len(rdec, &d->rep_len_model, pos_state);
+			} else {			/* match */
+				uint32_t distance;
+
+				len = min_match_len + Rd_decode_len(rdec, &d->match_len_model, pos_state);
+				distance = Rd_decode_tree(rdec, d->bm_dis_slot[get_len_state(len)], 6);
+				if (distance >= start_dis_model) {
+					const uint32_t dis_slot = distance;
+					const uint32_t direct_bits = (dis_slot >> 1) - 1;
+
+					distance = (2 | (dis_slot & 1)) << direct_bits;
+					if (dis_slot < end_dis_model)
+						distance += Rd_decode_tree_reversed(rdec,
+							d->bm_dis + (distance - dis_slot), direct_bits);
+					else {
+						distance += Rd_decode(rdec, direct_bits - dis_align_bits) << dis_align_bits;
+						distance += Rd_decode_tree_reversed(rdec, d->bm_align, dis_align_bits);
+						if (distance == 0xFFFFFFFFU) {	/* marker found */
+							Rd_normalize(rdec);
+							LZd_flush_data(d);
+							if (d->write_error)
+								return -1;
+							if (len == min_match_len &&	/* End Of Stream marker */
+							    LZd_verify_trailer(d))
+								return 0;
+							if (len == min_match_len + 1) {	/* Sync Flush marker */
+								Rd_load(rdec);
+								continue;
+							}
+							return 1;
+						}
+					}
+				}
+				rep3 = rep2; rep2 = rep1; rep1 = rep0; rep0 = distance;
+				state = St_set_match(state);
+				if (rep0 >= d->dictionary_size ||
+				   (rep0 >= d->pos && !d->pos_wrapped)) {
+					LZd_flush_data(d);
+					return 1;
+				}
+			}
+			LZd_copy_block(d, rep0, len);
+		}
+	}
+	LZd_flush_data(d);
+	return 1;
+}
+
+
+STATIC int INIT __lunzip(unsigned char *inbuf, long in_len,
+			long (*fill)(void*, unsigned long),
+			long (*flush)(void*, unsigned long),
+			unsigned char *outbuf, long out_len,
+			long *in_posp,
+			void (*error)(char *x))
+{
+	unsigned char *outptr = outbuf;
+	long out_size = out_len;
+	int retval = 0;
+	struct Range_decoder rdec;
+	struct LZ_decoder *decoder = 0;
+	bool first_member;
+
+	if (in_posp)
+		*in_posp = 0;
+	CRC32_init();
+
+	if (!Rd_init(&rdec, inbuf, in_len, fill)) {
+		error("Out of memory while allocating input buffer");
+		return -1;
+	}
+
+	for (first_member = true;; first_member = false) {
+		int result, size;
+		unsigned dictionary_size;
+		File_header header;
+
+		Rd_reset_member_position(&rdec);
+		for (size = 0; size < Fh_size; ++size)
+			header[size] = Rd_get_byte(&rdec);
+		if (Rd_finished(&rdec)) {	/* End Of File */
+			if (first_member) {
+				error("File ends unexpectedly at member header");
+				retval = -1;
+			}
+			break;
+		}
+		if (!Fh_verify_magic(header)) {
+			if (first_member) {
+				error("Bad magic number (file not in lzip format)");
+				retval = -1;
+			}
+			break;
+		}
+		dictionary_size = Fh_get_dictionary_size(header);
+		if (dictionary_size < min_dictionary_size ||
+		    dictionary_size > max_dictionary_size) {
+			error("Invalid dictionary size in member header");
+			retval = -1;
+			break;
+		}
+
+		if (!decoder)
+			decoder = malloc(sizeof *decoder);
+		if (!decoder || !LZd_init(decoder, &rdec, dictionary_size, outptr, out_size, flush)) {
+			error("Out of memory while allocating output buffer");
+			retval = -1;
+			break;
+		}
+		result = LZd_decode_member(decoder);
+		if (in_posp)
+			*in_posp += Rd_member_position(&rdec);
+		if (outptr)
+			outptr += LZd_data_position(decoder);
+		if (out_size > 0)
+			out_size -= LZd_data_position(decoder);
+		LZd_free(decoder);
+		if (result != 0) {
+			if (result < 0)
+				error("write error");
+			else
+				error("LZIP-compressed data is corrupt");
+			retval = -1;
+			break;
+		}
+	}
+	if (decoder)
+		free(decoder);
+	Rd_free(&rdec);
+	return retval;
+}
+
+#ifndef PREBOOT
+STATIC int INIT lunzip(unsigned char *inbuf, long in_len,
+			long (*fill)(void*, unsigned long),
+			long (*flush)(void*, unsigned long),
+			unsigned char *outbuf,
+			long *in_posp,
+			void (*error)(char *x))
+{
+	return __lunzip(inbuf, in_len, fill, flush, outbuf, 0, in_posp, error);
+}
+#else
+STATIC int INIT __decompress(unsigned char *inbuf, long in_len,
+			long (*fill)(void*, unsigned long),
+			long (*flush)(void*, unsigned long),
+			unsigned char *outbuf, long out_len,
+			long *in_posp,
+			void (*error)(char *x))
+{
+	return __lunzip(inbuf, in_len - 4, fill, flush, outbuf, out_len, in_posp, error);
+}
+#endif
diff -urdN linux-4.14.21/scripts/Makefile.lib linux-4.14.21.new/scripts/Makefile.lib
--- linux-4.14.21/scripts/Makefile.lib	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/scripts/Makefile.lib	2018-02-24 17:22:34.000000000 +0100
@@ -343,6 +343,21 @@
 	bzip2 -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
 	(rm -f $@ ; false)
 
+# Lzip
+# ---------------------------------------------------------------------------
+# The .lz format has the uncompressed size available at the end of the
+# file, but at offset (member_size - 16). So we append a gzip-style size.
+# Use klzip to compress the kernel image and lzip to compress other things.
+
+quiet_cmd_klzip = LZIP    $@
+cmd_klzip = (cat $(filter-out FORCE,$^) | \
+	lzip -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
+	(rm -f $@ ; false)
+
+quiet_cmd_lzip = LZIP    $@
+cmd_lzip = (cat $(filter-out FORCE,$^) | lzip -9) > $@ || \
+	(rm -f $@ ; false)
+
 # Lzma
 # ---------------------------------------------------------------------------
 
diff -urdN linux-4.14.21/scripts/extract-ikconfig linux-4.14.21.new/scripts/extract-ikconfig
--- linux-4.14.21/scripts/extract-ikconfig	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/scripts/extract-ikconfig	2018-02-24 17:22:34.000000000 +0100
@@ -59,6 +59,7 @@
 try_decompress '\037\213\010' xy    gunzip
 try_decompress '\3757zXZ\000' abcde unxz
 try_decompress 'BZh'          xy    bunzip2
+try_decompress 'LZIP'         xyz   'lzip -d'
 try_decompress '\135\0\0\0'   xxx   unlzma
 try_decompress '\211\114\132' xy    'lzop -d'
 try_decompress '\002\041\114\030' xyy 'lz4 -d -l'
diff -urdN linux-4.14.21/scripts/extract-vmlinux linux-4.14.21.new/scripts/extract-vmlinux
--- linux-4.14.21/scripts/extract-vmlinux	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/scripts/extract-vmlinux	2018-02-24 17:22:34.000000000 +0100
@@ -55,6 +55,7 @@
 try_decompress '\037\213\010' xy    gunzip
 try_decompress '\3757zXZ\000' abcde unxz
 try_decompress 'BZh'          xy    bunzip2
+try_decompress 'LZIP'         xyz   'lzip -d'
 try_decompress '\135\0\0\0'   xxx   unlzma
 try_decompress '\211\114\132' xy    'lzop -d'
 
diff -urdN linux-4.14.21/scripts/gen_initramfs_list.sh linux-4.14.21.new/scripts/gen_initramfs_list.sh
--- linux-4.14.21/scripts/gen_initramfs_list.sh	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/scripts/gen_initramfs_list.sh	2018-02-24 17:22:34.000000000 +0100
@@ -249,6 +249,9 @@
 		echo "$output_file" | grep -q "\.bz2$" \
                 && [ -x "`which bzip2 2> /dev/null`" ] \
                 && compr="bzip2 -9 -f"
+		echo "$output_file" | grep -q "\.lz$" \
+                && [ -x "`which lzip 2> /dev/null`" ] \
+                && compr="lzip -9 -f"
 		echo "$output_file" | grep -q "\.lzma$" \
                 && [ -x "`which lzma 2> /dev/null`" ] \
                 && compr="lzma -9 -f"
diff -urdN linux-4.14.21/scripts/package/Makefile linux-4.14.21.new/scripts/package/Makefile
--- linux-4.14.21/scripts/package/Makefile	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/scripts/package/Makefile	2018-02-24 17:22:34.000000000 +0100
@@ -123,8 +123,9 @@
 $(if $(findstring tar-src,$@),,                                     \
 $(if $(findstring bz2,$@),bzip2,                                    \
 $(if $(findstring gz,$@),gzip,                                      \
+$(if $(findstring lz,$@),lzip,                                      \
 $(if $(findstring xz,$@),xz,                                        \
-$(error unknown target $@))))                                       \
+$(error unknown target $@)))))                                      \
 	-f -9 $(perf-tar).tar)
 
 perf-%pkg: FORCE
@@ -140,8 +141,10 @@
 	@echo '  tar-pkg             - Build the kernel as an uncompressed tarball'
 	@echo '  targz-pkg           - Build the kernel as a gzip compressed tarball'
 	@echo '  tarbz2-pkg          - Build the kernel as a bzip2 compressed tarball'
+	@echo '  tarlz-pkg           - Build the kernel as a lzip compressed tarball'
 	@echo '  tarxz-pkg           - Build the kernel as a xz compressed tarball'
 	@echo '  perf-tar-src-pkg    - Build $(perf-tar).tar source tarball'
 	@echo '  perf-targz-src-pkg  - Build $(perf-tar).tar.gz source tarball'
 	@echo '  perf-tarbz2-src-pkg - Build $(perf-tar).tar.bz2 source tarball'
+	@echo '  perf-tarlz-src-pkg  - Build $(perf-tar).tar.lz source tarball'
 	@echo '  perf-tarxz-src-pkg  - Build $(perf-tar).tar.xz source tarball'
diff -urdN linux-4.14.21/scripts/package/buildtar linux-4.14.21.new/scripts/package/buildtar
--- linux-4.14.21/scripts/package/buildtar	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/scripts/package/buildtar	2018-02-24 17:22:34.000000000 +0100
@@ -35,6 +35,10 @@
 		opts=--bzip2
 		tarball=${tarball}.bz2
 		;;
+	tarlz-pkg)
+		opts=--lzip
+		tarball=${tarball}.lz
+		;;
 	tarxz-pkg)
 		opts=--xz
 		tarball=${tarball}.xz
diff -urdN linux-4.14.21/scripts/patch-kernel linux-4.14.21.new/scripts/patch-kernel
--- linux-4.14.21/scripts/patch-kernel	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/scripts/patch-kernel	2018-02-24 17:22:34.000000000 +0100
@@ -117,6 +117,10 @@
 		ext=".bz2"
 		name="bzip2"
 		uncomp="bunzip2 -dc"
+  elif [ -r ${filebase}.lz ]; then
+		ext=".lz"
+		name="lzip"
+		uncomp="lzip -dc"
   elif [ -r ${filebase}.xz ]; then
                 ext=".xz"
                 name="xz"
diff -urdN linux-4.14.21/tools/testing/selftests/gen_kselftest_tar.sh linux-4.14.21.new/tools/testing/selftests/gen_kselftest_tar.sh
--- linux-4.14.21/tools/testing/selftests/gen_kselftest_tar.sh	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/tools/testing/selftests/gen_kselftest_tar.sh	2018-02-24 17:22:34.000000000 +0100
@@ -29,6 +29,10 @@
 				copts="cvjf"
 				ext=".tar.bz2"
 				;;
+			tarlz)
+				copts="cv --lzip -f"
+				ext=".tar.lz"
+				;;
 			tarxz)
 				copts="cvJf"
 				ext=".tar.xz"
diff -urdN linux-4.14.21/usr/.gitignore linux-4.14.21.new/usr/.gitignore
--- linux-4.14.21/usr/.gitignore	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/usr/.gitignore	2018-02-24 17:22:34.000000000 +0100
@@ -5,6 +5,7 @@
 initramfs_data.cpio
 initramfs_data.cpio.gz
 initramfs_data.cpio.bz2
+initramfs_data.cpio.lz
 initramfs_data.cpio.lzma
 initramfs_list
 include
diff -urdN linux-4.14.21/usr/Kconfig linux-4.14.21.new/usr/Kconfig
--- linux-4.14.21/usr/Kconfig	2018-02-22 15:42:33.000000000 +0100
+++ linux-4.14.21.new/usr/Kconfig	2018-02-24 17:22:34.000000000 +0100
@@ -70,6 +70,15 @@
 	  Support loading of a bzip2 encoded initial ramdisk or cpio buffer
 	  If unsure, say N.
 
+config RD_LZIP
+	bool "Support initial ramdisk/ramfs compressed using lzip"
+	default y
+	depends on BLK_DEV_INITRD
+	select DECOMPRESS_LZIP
+	help
+	  Support loading of a lzip encoded initial ramdisk or cpio buffer.
+	  If unsure, say N.
+
 config RD_LZMA
 	bool "Support initial ramdisk/ramfs compressed using LZMA"
 	default y
@@ -165,6 +174,18 @@
 	  If you choose this, keep in mind that you need to have the bzip2 tool
 	  available to be able to compress the initram.
 
+config INITRAMFS_COMPRESSION_LZIP
+	bool "Lzip"
+	depends on RD_LZIP
+	help
+	  Lzip's compression ratio is better than that of gzip and bzip2.
+	  Decompression speed is between gzip and bzip2.  Compression can
+	  be as fast as gzip or slower than bzip2 depending on compression
+	  level.  Lzip can produce a initramfs about a 16% smaller than gzip.
+
+	  If you choose this, keep in mind that you need to have the lzip tool
+	  available to be able to compress the initram.
+
 config INITRAMFS_COMPRESSION_LZMA
 	bool "LZMA"
 	depends on RD_LZMA
@@ -222,12 +243,14 @@
 	default ""      if INITRAMFS_COMPRESSION_NONE
 	default ".gz"   if INITRAMFS_COMPRESSION_GZIP
 	default ".bz2"  if INITRAMFS_COMPRESSION_BZIP2
+	default ".lz"   if INITRAMFS_COMPRESSION_LZIP
 	default ".lzma" if INITRAMFS_COMPRESSION_LZMA
 	default ".xz"   if INITRAMFS_COMPRESSION_XZ
 	default ".lzo"  if INITRAMFS_COMPRESSION_LZO
 	default ".lz4"  if INITRAMFS_COMPRESSION_LZ4
 	default ".gz"   if RD_GZIP
 	default ".lz4"  if RD_LZ4
+	default ".lz"   if RD_LZIP
 	default ".lzo"  if RD_LZO
 	default ".xz"   if RD_XZ
 	default ".lzma" if RD_LZMA