[PATCH v1] MIPS: Add support of LZO-compressed kernels

[PATCH v1] MIPS: Add support of LZO-compressed kernels

[Wu Zhangjin]

(Changes from v0: 'align "lzo" with the rest of the suffixes/tool names' as
 Sergei suggested.)

The commit "lib: add support for LZO-compressed kernels" has been merged
into linus' 2.6.33-rc4 tree, so, It is time to add the support for MIPS.

NOTE: to enable this support, the lzop application is needed.

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
---
 arch/mips/Kconfig                      |    1 +
 arch/mips/boot/compressed/Makefile     |    2 ++
 arch/mips/boot/compressed/decompress.c |    4 ++++
 3 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 9541171..8b5d174 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1311,6 +1311,7 @@ config SYS_SUPPORTS_ZBOOT
 	select HAVE_KERNEL_GZIP
 	select HAVE_KERNEL_BZIP2
 	select HAVE_KERNEL_LZMA
+	select HAVE_KERNEL_LZO
 
 config SYS_SUPPORTS_ZBOOT_UART16550
 	bool
diff --git a/arch/mips/boot/compressed/Makefile b/arch/mips/boot/compressed/Makefile
index 671d344..bdcfd49 100644
--- a/arch/mips/boot/compressed/Makefile
+++ b/arch/mips/boot/compressed/Makefile
@@ -41,9 +41,11 @@ $(obj)/vmlinux.bin: $(KBUILD_IMAGE)
 suffix_$(CONFIG_KERNEL_GZIP)  = gz
 suffix_$(CONFIG_KERNEL_BZIP2) = bz2
 suffix_$(CONFIG_KERNEL_LZMA)  = lzma
+suffix_$(CONFIG_KERNEL_LZO)   = lzo
 tool_$(CONFIG_KERNEL_GZIP)    = gzip
 tool_$(CONFIG_KERNEL_BZIP2)   = bzip2
 tool_$(CONFIG_KERNEL_LZMA)    = lzma
+tool_$(CONFIG_KERNEL_LZO)     = lzo
 $(obj)/vmlinux.$(suffix_y): $(obj)/vmlinux.bin
 	$(call if_changed,$(tool_y))
 
diff --git a/arch/mips/boot/compressed/decompress.c b/arch/mips/boot/compressed/decompress.c
index e48fd72..55d02b3 100644
--- a/arch/mips/boot/compressed/decompress.c
+++ b/arch/mips/boot/compressed/decompress.c
@@ -77,6 +77,10 @@ void *memset(void *s, int c, size_t n)
 #include "../../../../lib/decompress_unlzma.c"
 #endif
 
+#ifdef CONFIG_KERNEL_LZO
+#include "../../../../lib/decompress_unlzo.c"
+#endif
+
 void decompress_kernel(unsigned long boot_heap_start)
 {
 	int zimage_size;
-- 
1.6.5.6

Re: [PATCH v1] MIPS: Add support of LZO-compressed kernels

[Ralf Baechle]

On Fri, Jan 15, 2010 at 08:34:46PM +0800, Wu Zhangjin wrote:

> (Changes from v0: 'align "lzo" with the rest of the suffixes/tool names' as
>  Sergei suggested.)
> 
> The commit "lib: add support for LZO-compressed kernels" has been merged
> into linus' 2.6.33-rc4 tree, so, It is time to add the support for MIPS.
> 
> NOTE: to enable this support, the lzop application is needed.
> 
> Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>

Thanks, applied.

  Ralf