/*
* MTD methods which simply translate the effective address and pass through
-@@ -512,6 +514,156 @@ out_register:
+@@ -512,6 +514,155 @@ out_register:
return slave;
}
+
+static int split_squashfs(struct mtd_info *master, int offset, int *split_offset)
+{
-+ char buf[512];
-+ struct squashfs_super_block *sb = (struct squashfs_super_block *) buf;
++ struct squashfs_super_block sb;
+ int len, ret;
+
-+ ret = master->read(master, offset, sizeof(*sb), &len, buf);
-+ if (ret || (len != sizeof(*sb))) {
++ ret = master->read(master, offset, sizeof(sb), &len, (void *) &sb);
++ if (ret || (len != sizeof(sb))) {
+ printk(KERN_ALERT "split_squashfs: error occured while reading "
+ "from \"%s\"\n", master->name);
+ return -EINVAL;
+ }
+
-+ if (*((u32 *) buf) != SQUASHFS_MAGIC) {
++ if (SQUASHFS_MAGIC != le32_to_cpu(sb.s_magic) ) {
+ printk(KERN_ALERT "split_squashfs: no squashfs found in \"%s\"\n",
+ master->name);
+ *split_offset = 0;
+ return 0;
+ }
+
-+ if (sb->bytes_used <= 0) {
++ if (le64_to_cpu((sb.bytes_used)) <= 0) {
+ printk(KERN_ALERT "split_squashfs: squashfs is empty in \"%s\"\n",
+ master->name);
+ *split_offset = 0;
+ return 0;
+ }
+
-+ len = (u32) sb->bytes_used;
++ len = (u32) le64_to_cpu(sb.bytes_used);
+ len += (offset & 0x000fffff);
+ len += (master->erasesize - 1);
+ len &= ~(master->erasesize - 1);
/*
* This function, given a master MTD object and a partition table, creates
* and registers slave MTD objects which are bound to the master according to
-@@ -527,14 +679,29 @@ int add_mtd_partitions(struct mtd_info *
+@@ -527,14 +678,29 @@ int add_mtd_partitions(struct mtd_info *
{
struct mtd_part *slave;
uint64_t cur_offset = 0;
cur_offset = slave->offset + slave->mtd.size;
}
-@@ -542,6 +709,32 @@ int add_mtd_partitions(struct mtd_info *
+@@ -542,6 +708,32 @@ int add_mtd_partitions(struct mtd_info *
}
EXPORT_SYMBOL(add_mtd_partitions);
if (devt) {
bdev = open_by_devnum(devt, FMODE_WRITE | FMODE_READ);
}
-@@ -263,17 +276,97 @@ static struct block2mtd_dev *add_device(
+@@ -263,17 +276,98 @@ static struct block2mtd_dev *add_device(
#endif
if (IS_ERR(bdev)) {
+ bdev = open_by_devnum(devt, FMODE_WRITE | FMODE_READ);
+ if (!bdev || !bdev->bd_disk)
+ err = -EINVAL;
-+ else {
++#ifndef CONFIG_MTD_BLOCK2MTD_MODULE
++ else
+ err = rescan_partitions(bdev->bd_disk, bdev);
-+ }
++#endif
+ if (bdev)
+ close_bdev_exclusive(bdev, FMODE_READ|FMODE_WRITE);
+
if (!mtdname)
mtdname = devname;
-@@ -297,6 +390,7 @@ static struct block2mtd_dev *add_device(
+@@ -297,6 +391,7 @@ static struct block2mtd_dev *add_device(
dev->mtd.read = block2mtd_read;
dev->mtd.priv = dev;
dev->mtd.owner = THIS_MODULE;