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--- a/drivers/mtd/devices/block2mtd.c
+++ b/drivers/mtd/devices/block2mtd.c
@@ -14,6 +14,7 @@
#include <linux/list.h>
#include <linux/init.h>
#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
#include <linux/buffer_head.h>
#include <linux/mutex.h>
#include <linux/mount.h>
@@ -232,10 +233,11 @@ static void block2mtd_free_device(struct
/* FIXME: ensure that mtd->size % erase_size == 0 */
-static struct block2mtd_dev *add_device(char *devname, int erase_size)
+static struct block2mtd_dev *add_device(char *devname, int erase_size, const char *mtdname)
{
struct block_device *bdev;
struct block2mtd_dev *dev;
+ struct mtd_partition *part;
char *name;
if (!devname)
@@ -273,17 +275,17 @@ static struct block2mtd_dev *add_device(
mutex_init(&dev->write_mutex);
- /* Setup the MTD structure */
- /* make the name contain the block device in */
- name = kmalloc(sizeof("block2mtd: ") + strlen(devname) + 1,
- GFP_KERNEL);
+ if (!mtdname)
+ mtdname = devname;
+
+ name = kmalloc(strlen(mtdname) + 1, GFP_KERNEL);
if (!name)
goto devinit_err;
- sprintf(name, "block2mtd: %s", devname);
+ strcpy(name, mtdname);
dev->mtd.name = name;
- dev->mtd.size = dev->blkdev->bd_inode->i_size & PAGE_MASK;
+ dev->mtd.size = dev->blkdev->bd_inode->i_size & PAGE_MASK & ~(erase_size - 1);
dev->mtd.erasesize = erase_size;
dev->mtd.writesize = 1;
dev->mtd.type = MTD_RAM;
@@ -296,14 +298,17 @@ static struct block2mtd_dev *add_device(
dev->mtd.priv = dev;
dev->mtd.owner = THIS_MODULE;
- if (add_mtd_device(&dev->mtd)) {
+ part = kzalloc(sizeof(struct mtd_partition), GFP_KERNEL);
+ part->name = dev->mtd.name;
+ part->offset = 0;
+ part->size = dev->mtd.size;
+ if (add_mtd_partitions(&dev->mtd, part, 1)) {
/* Device didnt get added, so free the entry */
goto devinit_err;
}
list_add(&dev->list, &blkmtd_device_list);
INFO("mtd%d: [%s] erase_size = %dKiB [%d]", dev->mtd.index,
- dev->mtd.name + strlen("block2mtd: "),
- dev->mtd.erasesize >> 10, dev->mtd.erasesize);
+ mtdname, dev->mtd.erasesize >> 10, dev->mtd.erasesize);
return dev;
devinit_err:
@@ -376,9 +381,9 @@ static char block2mtd_paramline[80 + 12]
static int block2mtd_setup2(const char *val)
{
- char buf[80 + 12]; /* 80 for device, 12 for erase size */
+ char buf[80 + 12 + 80]; /* 80 for device, 12 for erase size, 80 for name */
char *str = buf;
- char *token[2];
+ char *token[3];
char *name;
size_t erase_size = PAGE_SIZE;
int i, ret;
@@ -389,7 +394,7 @@ static int block2mtd_setup2(const char *
strcpy(str, val);
kill_final_newline(str);
- for (i = 0; i < 2; i++)
+ for (i = 0; i < 3; i++)
token[i] = strsep(&str, ",");
if (str)
@@ -408,8 +413,10 @@ static int block2mtd_setup2(const char *
parse_err("illegal erase size");
}
}
+ if (token[2] && (strlen(token[2]) + 1 > 80))
+ parse_err("mtd device name too long");
- add_device(name, erase_size);
+ add_device(name, erase_size, token[2]);
return 0;
}
@@ -443,7 +450,7 @@ static int block2mtd_setup(const char *v
module_param_call(block2mtd, block2mtd_setup, NULL, NULL, 0200);
-MODULE_PARM_DESC(block2mtd, "Device to use. \"block2mtd=<dev>[,<erasesize>]\"");
+MODULE_PARM_DESC(block2mtd, "Device to use. \"block2mtd=<dev>[,<erasesize>[,<name>]]\"");
static int __init block2mtd_init(void)
{
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