From da1bb88a2b900f0392b731ec47c5e1bff956fd8f Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Sat, 26 Jun 2010 20:42:58 +0000 Subject: rename target/linux/generic-2.6 to generic SVN-Revision: 21952 --- .../007-squashfs_make_lzma_available.patch | 165 +++++++++++++++++++++ 1 file changed, 165 insertions(+) create mode 100644 target/linux/generic/patches-2.6.30/007-squashfs_make_lzma_available.patch (limited to 'target/linux/generic/patches-2.6.30/007-squashfs_make_lzma_available.patch') diff --git a/target/linux/generic/patches-2.6.30/007-squashfs_make_lzma_available.patch b/target/linux/generic/patches-2.6.30/007-squashfs_make_lzma_available.patch new file mode 100644 index 0000000000..64705d2a94 --- /dev/null +++ b/target/linux/generic/patches-2.6.30/007-squashfs_make_lzma_available.patch @@ -0,0 +1,165 @@ +From fdf23ed283bc6ef5c25076ce2065f892120ff556 Mon Sep 17 00:00:00 2001 +From: Phillip Lougher +Date: Thu, 22 Oct 2009 04:57:38 +0100 +Subject: [PATCH] Squashfs: Make unlzma available to non initramfs/initrd code + +Add a config option DECOMPRESS_LZMA_NEEDED which allows subsystems to +specify they need the unlzma code. Normally decompress_unlzma.c is +compiled with __init and unlzma is not exported to modules. + +Signed-off-by: Phillip Lougher +--- + fs/squashfs/Kconfig | 1 + + include/linux/decompress/bunzip2_mm.h | 12 ++++++++++++ + include/linux/decompress/inflate_mm.h | 12 ++++++++++++ + include/linux/decompress/mm.h | 3 --- + include/linux/decompress/unlzma_mm.h | 20 ++++++++++++++++++++ + lib/Kconfig | 3 +++ + lib/decompress_bunzip2.c | 1 + + lib/decompress_inflate.c | 1 + + lib/decompress_unlzma.c | 5 ++++- + 9 files changed, 54 insertions(+), 4 deletions(-) + create mode 100644 include/linux/decompress/bunzip2_mm.h + create mode 100644 include/linux/decompress/inflate_mm.h + create mode 100644 include/linux/decompress/unlzma_mm.h + +--- a/fs/squashfs/Kconfig ++++ b/fs/squashfs/Kconfig +@@ -30,6 +30,7 @@ config SQUASHFS_LZMA + bool "Include support for LZMA compressed file systems" + depends on SQUASHFS + select DECOMPRESS_LZMA ++ select DECOMPRESS_LZMA_NEEDED + + config SQUASHFS_EMBEDDED + +--- /dev/null ++++ b/include/linux/decompress/bunzip2_mm.h +@@ -0,0 +1,12 @@ ++#ifndef BUNZIP2_MM_H ++#define BUNZIP2_MM_H ++ ++#ifdef STATIC ++/* Code active when included from pre-boot environment: */ ++#define INIT ++#else ++/* Compile for initramfs/initrd code only */ ++#define INIT __init ++#endif ++ ++#endif +--- /dev/null ++++ b/include/linux/decompress/inflate_mm.h +@@ -0,0 +1,12 @@ ++#ifndef INFLATE_MM_H ++#define INFLATE_MM_H ++ ++#ifdef STATIC ++/* Code active when included from pre-boot environment: */ ++#define INIT ++#else ++/* Compile for initramfs/initrd code only */ ++#define INIT __init ++#endif ++ ++#endif +--- a/include/linux/decompress/mm.h ++++ b/include/linux/decompress/mm.h +@@ -53,8 +53,6 @@ static void free(void *where) + + #define set_error_fn(x) + +-#define INIT +- + #else /* STATIC */ + + /* Code active when compiled standalone for use when loading ramdisk: */ +@@ -77,7 +75,6 @@ static void free(void *where) + static void(*error)(char *m); + #define set_error_fn(x) error = x; + +-#define INIT __init + #define STATIC + + #include +--- /dev/null ++++ b/include/linux/decompress/unlzma_mm.h +@@ -0,0 +1,20 @@ ++#ifndef UNLZMA_MM_H ++#define UNLZMA_MM_H ++ ++#ifdef STATIC ++ ++/* Code active when included from pre-boot environment: */ ++#define INIT ++ ++#elif defined(CONFIG_DECOMPRESS_LZMA_NEEDED) ++ ++/* Make it available to non initramfs/initrd code */ ++#define INIT ++#include ++#else ++ ++/* Compile for initramfs/initrd code only */ ++#define INIT __init ++#endif ++ ++#endif +--- a/lib/Kconfig ++++ b/lib/Kconfig +@@ -114,6 +114,9 @@ config DECOMPRESS_BZIP2 + config DECOMPRESS_LZMA + tristate + ++config DECOMPRESS_LZMA_NEEDED ++ boolean ++ + # + # Generic allocator support is selected if needed + # +--- a/lib/decompress_bunzip2.c ++++ b/lib/decompress_bunzip2.c +@@ -51,6 +51,7 @@ + #include + #endif /* STATIC */ + ++#include + #include + #include + +--- a/lib/decompress_inflate.c ++++ b/lib/decompress_inflate.c +@@ -22,6 +22,7 @@ + + #endif /* STATIC */ + ++#include + #include + #include + +--- a/lib/decompress_unlzma.c ++++ b/lib/decompress_unlzma.c +@@ -35,6 +35,7 @@ + #include + #endif /* STATIC */ + ++#include + #include + #include + +@@ -523,7 +524,7 @@ static inline void INIT process_bit1(str + + + +-STATIC inline int INIT unlzma(unsigned char *buf, int in_len, ++STATIC int INIT unlzma(unsigned char *buf, int in_len, + int(*fill)(void*, unsigned int), + int(*flush)(void*, unsigned int), + unsigned char *output, +@@ -656,4 +657,6 @@ STATIC int INIT decompress(unsigned char + { + return unlzma(buf, in_len - 4, fill, flush, output, posp, error_fn); + } ++#elif defined(CONFIG_DECOMPRESS_LZMA_NEEDED) ++EXPORT_SYMBOL(unlzma); + #endif -- cgit v1.2.3