From 8d162264af02231b9c452c0d6d38e3a8b08e4a4a Mon Sep 17 00:00:00 2001 From: Matteo Croce Date: Thu, 20 Sep 2007 19:25:38 +0000 Subject: [PATCH] Make ar7_part more readable and endianness safe SVN-Revision: 8886 --- target/linux/ar7/files/drivers/mtd/ar7part.c | 29 ++++--- .../patches-2.6.22/001-squashfs.patch | 77 +++++++++++-------- 2 files changed, 64 insertions(+), 42 deletions(-) diff --git a/target/linux/ar7/files/drivers/mtd/ar7part.c b/target/linux/ar7/files/drivers/mtd/ar7part.c index 775041d7d6..8bfd5711a2 100644 --- a/target/linux/ar7/files/drivers/mtd/ar7part.c +++ b/target/linux/ar7/files/drivers/mtd/ar7part.c @@ -26,7 +26,18 @@ #include #include #include -#include +#include + +#define AR7_PARTS 4 +#define ROOT_OFFSET 0xe0000 + +#ifdef CONFIG_CPU_LITTLE_ENDIAN +#define LOADER_MAGIC1 0xfeedfa42 +#define LOADER_MAGIC2 0xfeed1281 +#else +#define LOADER_MAGIC1 0x42faedfe +#define LOADER_MAGIC2 0x8112edfe +#endif struct ar7_bin_rec { unsigned int checksum; @@ -34,7 +45,7 @@ struct ar7_bin_rec { unsigned int address; }; -static struct mtd_partition ar7_parts[5]; +static struct mtd_partition ar7_parts[AR7_PARTS]; static int create_mtd_partitions(struct mtd_info *master, struct mtd_partition **pparts, @@ -43,12 +54,10 @@ static int create_mtd_partitions(struct mtd_info *master, struct ar7_bin_rec header; unsigned int offset, len; unsigned int pre_size = master->erasesize, post_size = 0; - unsigned int root_offset = 0xe0000; + unsigned int root_offset = ROOT_OFFSET; int retries = 10; - printk(KERN_INFO "Parsing AR7 partition map...\n"); - ar7_parts[0].name = "loader"; ar7_parts[0].offset = 0; ar7_parts[0].size = master->erasesize; @@ -65,9 +74,9 @@ static int create_mtd_partitions(struct mtd_info *master, sizeof(header), &len, (u_char *)&header); if (!strncmp((char *)&header, "TIENV0.8", 8)) ar7_parts[1].offset = pre_size; - if (header.checksum == 0xfeedfa42) + if (header.checksum == LOADER_MAGIC1) break; - if (header.checksum == 0xfeed1281) + if (header.checksum == LOADER_MAGIC2) break; pre_size += master->erasesize; } while (retries--); @@ -80,7 +89,7 @@ static int create_mtd_partitions(struct mtd_info *master, } switch (header.checksum) { - case 0xfeedfa42: + case LOADER_MAGIC1: while (header.length) { offset += sizeof(header) + header.length; master->read(master, offset, sizeof(header), @@ -88,7 +97,7 @@ static int create_mtd_partitions(struct mtd_info *master, } root_offset = offset + sizeof(header) + 4; break; - case 0xfeed1281: + case LOADER_MAGIC2: while (header.length) { offset += sizeof(header) + header.length; master->read(master, offset, sizeof(header), @@ -120,7 +129,7 @@ static int create_mtd_partitions(struct mtd_info *master, ar7_parts[3].mask_flags = 0; *pparts = ar7_parts; - return 4; + return AR7_PARTS; } static struct mtd_part_parser ar7_parser = { diff --git a/target/linux/generic-2.6/patches-2.6.22/001-squashfs.patch b/target/linux/generic-2.6/patches-2.6.22/001-squashfs.patch index 38306841d3..efe21bf721 100644 --- a/target/linux/generic-2.6/patches-2.6.22/001-squashfs.patch +++ b/target/linux/generic-2.6/patches-2.6.22/001-squashfs.patch @@ -1,6 +1,6 @@ -diff -urN linux-2.6.21.1.old/fs/Kconfig linux-2.6.21.1.dev/fs/Kconfig ---- linux-2.6.21.1.old/fs/Kconfig 2007-04-27 23:49:26.000000000 +0200 -+++ linux-2.6.21.1.dev/fs/Kconfig 2007-05-26 19:00:37.121351760 +0200 +diff -urN linux-2.6.22.4/fs/Kconfig linux-2.6.22.4-squashfs/fs/Kconfig +--- linux-2.6.22.4/fs/Kconfig 2007-08-21 06:33:06.000000000 +0200 ++++ linux-2.6.22.4-squashfs/fs/Kconfig 2007-09-20 19:13:44.000000000 +0200 @@ -1367,6 +1367,71 @@ If unsure, say N. @@ -73,9 +73,9 @@ diff -urN linux-2.6.21.1.old/fs/Kconfig linux-2.6.21.1.dev/fs/Kconfig config VXFS_FS tristate "FreeVxFS file system support (VERITAS VxFS(TM) compatible)" depends on BLOCK -diff -urN linux-2.6.21.1.old/fs/Makefile linux-2.6.21.1.dev/fs/Makefile ---- linux-2.6.21.1.old/fs/Makefile 2007-04-27 23:49:26.000000000 +0200 -+++ linux-2.6.21.1.dev/fs/Makefile 2007-05-26 19:00:37.121351760 +0200 +diff -urN linux-2.6.22.4/fs/Makefile linux-2.6.22.4-squashfs/fs/Makefile +--- linux-2.6.22.4/fs/Makefile 2007-08-21 06:33:06.000000000 +0200 ++++ linux-2.6.22.4-squashfs/fs/Makefile 2007-09-20 19:13:44.000000000 +0200 @@ -72,6 +72,7 @@ obj-$(CONFIG_JBD2) += jbd2/ obj-$(CONFIG_EXT2_FS) += ext2/ @@ -84,9 +84,9 @@ diff -urN linux-2.6.21.1.old/fs/Makefile linux-2.6.21.1.dev/fs/Makefile obj-$(CONFIG_RAMFS) += ramfs/ obj-$(CONFIG_HUGETLBFS) += hugetlbfs/ obj-$(CONFIG_CODA_FS) += coda/ -diff -urN linux-2.6.21.1.old/fs/squashfs/inode.c linux-2.6.21.1.dev/fs/squashfs/inode.c ---- linux-2.6.21.1.old/fs/squashfs/inode.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.21.1.dev/fs/squashfs/inode.c 2007-05-26 19:00:37.123351456 +0200 +diff -urN linux-2.6.22.4/fs/squashfs/inode.c linux-2.6.22.4-squashfs/fs/squashfs/inode.c +--- linux-2.6.22.4/fs/squashfs/inode.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.22.4-squashfs/fs/squashfs/inode.c 2007-09-20 19:13:44.000000000 +0200 @@ -0,0 +1,2122 @@ +/* + * Squashfs - a compressed read only filesystem for Linux @@ -2210,9 +2210,9 @@ diff -urN linux-2.6.21.1.old/fs/squashfs/inode.c linux-2.6.21.1.dev/fs/squashfs/ +MODULE_DESCRIPTION("squashfs, a compressed read-only filesystem"); +MODULE_AUTHOR("Phillip Lougher "); +MODULE_LICENSE("GPL"); -diff -urN linux-2.6.21.1.old/fs/squashfs/Makefile linux-2.6.21.1.dev/fs/squashfs/Makefile ---- linux-2.6.21.1.old/fs/squashfs/Makefile 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.21.1.dev/fs/squashfs/Makefile 2007-05-26 19:00:37.123351456 +0200 +diff -urN linux-2.6.22.4/fs/squashfs/Makefile linux-2.6.22.4-squashfs/fs/squashfs/Makefile +--- linux-2.6.22.4/fs/squashfs/Makefile 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.22.4-squashfs/fs/squashfs/Makefile 2007-09-20 19:13:44.000000000 +0200 @@ -0,0 +1,7 @@ +# +# Makefile for the linux squashfs routines. @@ -2221,9 +2221,9 @@ diff -urN linux-2.6.21.1.old/fs/squashfs/Makefile linux-2.6.21.1.dev/fs/squashfs +obj-$(CONFIG_SQUASHFS) += squashfs.o +squashfs-y += inode.o +squashfs-y += squashfs2_0.o -diff -urN linux-2.6.21.1.old/fs/squashfs/squashfs2_0.c linux-2.6.21.1.dev/fs/squashfs/squashfs2_0.c ---- linux-2.6.21.1.old/fs/squashfs/squashfs2_0.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.21.1.dev/fs/squashfs/squashfs2_0.c 2007-05-26 19:00:37.125351152 +0200 +diff -urN linux-2.6.22.4/fs/squashfs/squashfs2_0.c linux-2.6.22.4-squashfs/fs/squashfs/squashfs2_0.c +--- linux-2.6.22.4/fs/squashfs/squashfs2_0.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.22.4-squashfs/fs/squashfs/squashfs2_0.c 2007-09-20 19:13:44.000000000 +0200 @@ -0,0 +1,758 @@ +/* + * Squashfs - a compressed read only filesystem for Linux @@ -2983,9 +2983,9 @@ diff -urN linux-2.6.21.1.old/fs/squashfs/squashfs2_0.c linux-2.6.21.1.dev/fs/squ + + return 1; +} -diff -urN linux-2.6.21.1.old/fs/squashfs/squashfs.h linux-2.6.21.1.dev/fs/squashfs/squashfs.h ---- linux-2.6.21.1.old/fs/squashfs/squashfs.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.21.1.dev/fs/squashfs/squashfs.h 2007-05-26 19:00:37.125351152 +0200 +diff -urN linux-2.6.22.4/fs/squashfs/squashfs.h linux-2.6.22.4-squashfs/fs/squashfs/squashfs.h +--- linux-2.6.22.4/fs/squashfs/squashfs.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.22.4-squashfs/fs/squashfs/squashfs.h 2007-09-20 19:13:44.000000000 +0200 @@ -0,0 +1,86 @@ +/* + * Squashfs - a compressed read only filesystem for Linux @@ -3073,9 +3073,22 @@ diff -urN linux-2.6.21.1.old/fs/squashfs/squashfs.h linux-2.6.21.1.dev/fs/squash + return 0; +} +#endif -diff -urN linux-2.6.21.1.old/include/linux/squashfs_fs.h linux-2.6.21.1.dev/include/linux/squashfs_fs.h ---- linux-2.6.21.1.old/include/linux/squashfs_fs.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.21.1.dev/include/linux/squashfs_fs.h 2007-05-26 19:00:37.143348416 +0200 +diff -urN linux-2.6.22.4/include/linux/magic.h linux-2.6.22.4-squashfs/include/linux/magic.h +--- linux-2.6.22.4/include/linux/magic.h 2007-08-21 06:33:06.000000000 +0200 ++++ linux-2.6.22.4-squashfs/include/linux/magic.h 2007-09-20 19:15:43.000000000 +0200 +@@ -36,6 +36,9 @@ + #define REISER2FS_SUPER_MAGIC_STRING "ReIsEr2Fs" + #define REISER2FS_JR_SUPER_MAGIC_STRING "ReIsEr3Fs" + ++#define SQUASHFS_MAGIC 0x73717368 ++#define SQUASHFS_MAGIC_SWAP 0x68737173 ++ + #define SMB_SUPER_MAGIC 0x517B + #define USBDEVICE_SUPER_MAGIC 0x9fa2 + +diff -urN linux-2.6.22.4/include/linux/squashfs_fs.h linux-2.6.22.4-squashfs/include/linux/squashfs_fs.h +--- linux-2.6.22.4/include/linux/squashfs_fs.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.22.4-squashfs/include/linux/squashfs_fs.h 2007-09-20 19:15:01.000000000 +0200 @@ -0,0 +1,911 @@ +#ifndef SQUASHFS_FS +#define SQUASHFS_FS @@ -3117,8 +3130,6 @@ diff -urN linux-2.6.21.1.old/include/linux/squashfs_fs.h linux-2.6.21.1.dev/incl +#define SQUASHFS_CACHED_FRAGMENTS CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE +#define SQUASHFS_MAJOR 3 +#define SQUASHFS_MINOR 0 -+#define SQUASHFS_MAGIC 0x73717368 -+#define SQUASHFS_MAGIC_SWAP 0x68737173 +#define SQUASHFS_START 0 + +/* size of metadata (inode and directory) blocks */ @@ -3263,6 +3274,8 @@ diff -urN linux-2.6.21.1.old/include/linux/squashfs_fs.h linux-2.6.21.1.dev/incl +#define SQUASHFS_META_NUMBER 8 +#define SQUASHFS_SLOTS 4 + ++#include ++ +struct meta_entry { + long long data_block; + unsigned int index_block; @@ -3988,9 +4001,9 @@ diff -urN linux-2.6.21.1.old/include/linux/squashfs_fs.h linux-2.6.21.1.dev/incl + +#endif +#endif -diff -urN linux-2.6.21.1.old/include/linux/squashfs_fs_i.h linux-2.6.21.1.dev/include/linux/squashfs_fs_i.h ---- linux-2.6.21.1.old/include/linux/squashfs_fs_i.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.21.1.dev/include/linux/squashfs_fs_i.h 2007-05-26 19:00:37.143348416 +0200 +diff -urN linux-2.6.22.4/include/linux/squashfs_fs_i.h linux-2.6.22.4-squashfs/include/linux/squashfs_fs_i.h +--- linux-2.6.22.4/include/linux/squashfs_fs_i.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.22.4-squashfs/include/linux/squashfs_fs_i.h 2007-09-20 19:13:44.000000000 +0200 @@ -0,0 +1,45 @@ +#ifndef SQUASHFS_FS_I +#define SQUASHFS_FS_I @@ -4037,9 +4050,9 @@ diff -urN linux-2.6.21.1.old/include/linux/squashfs_fs_i.h linux-2.6.21.1.dev/in + struct inode vfs_inode; +}; +#endif -diff -urN linux-2.6.21.1.old/include/linux/squashfs_fs_sb.h linux-2.6.21.1.dev/include/linux/squashfs_fs_sb.h ---- linux-2.6.21.1.old/include/linux/squashfs_fs_sb.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.21.1.dev/include/linux/squashfs_fs_sb.h 2007-05-26 19:00:37.144348264 +0200 +diff -urN linux-2.6.22.4/include/linux/squashfs_fs_sb.h linux-2.6.22.4-squashfs/include/linux/squashfs_fs_sb.h +--- linux-2.6.22.4/include/linux/squashfs_fs_sb.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.22.4-squashfs/include/linux/squashfs_fs_sb.h 2007-09-20 19:13:44.000000000 +0200 @@ -0,0 +1,74 @@ +#ifndef SQUASHFS_FS_SB +#define SQUASHFS_FS_SB @@ -4115,9 +4128,9 @@ diff -urN linux-2.6.21.1.old/include/linux/squashfs_fs_sb.h linux-2.6.21.1.dev/i + int (*read_fragment_index_table)(struct super_block *s); +}; +#endif -diff -urN linux-2.6.21.1.old/init/do_mounts_rd.c linux-2.6.21.1.dev/init/do_mounts_rd.c ---- linux-2.6.21.1.old/init/do_mounts_rd.c 2007-04-27 23:49:26.000000000 +0200 -+++ linux-2.6.21.1.dev/init/do_mounts_rd.c 2007-05-26 19:00:37.144348264 +0200 +diff -urN linux-2.6.22.4/init/do_mounts_rd.c linux-2.6.22.4-squashfs/init/do_mounts_rd.c +--- linux-2.6.22.4/init/do_mounts_rd.c 2007-08-21 06:33:06.000000000 +0200 ++++ linux-2.6.22.4-squashfs/init/do_mounts_rd.c 2007-09-20 19:13:44.000000000 +0200 @@ -5,6 +5,7 @@ #include #include -- 2.34.1