mirror of https://github.com/hak5/openwrt-owl.git
109 lines
3.3 KiB
Diff
109 lines
3.3 KiB
Diff
|
--- a/drivers/mtd/devices/block2mtd.c
|
||
|
|
+++ b/drivers/mtd/devices/block2mtd.c
|
||
|
|
@@ -25,6 +25,7 @@
|
||
|
|
#include <linux/list.h>
|
||
|
|
#include <linux/init.h>
|
||
|
|
#include <linux/mtd/mtd.h>
|
||
|
|
+#include <linux/mtd/partitions.h>
|
||
|
|
#include <linux/mutex.h>
|
||
|
|
#include <linux/mount.h>
|
||
|
|
#include <linux/slab.h>
|
||
|
|
@@ -218,7 +219,7 @@ static void block2mtd_free_device(struct
|
||
|
|
|
||
|
|
|
||
|
|
static struct block2mtd_dev *add_device(char *devname, int erase_size,
|
||
|
|
- int timeout)
|
||
|
|
+ const char *mtdname, int timeout)
|
||
|
|
{
|
||
|
|
#ifndef MODULE
|
||
|
|
int i;
|
||
|
|
@@ -226,6 +227,7 @@ static struct block2mtd_dev *add_device(
|
||
|
|
const fmode_t mode = FMODE_READ | FMODE_WRITE | FMODE_EXCL;
|
||
|
|
struct block_device *bdev = ERR_PTR(-ENODEV);
|
||
|
|
struct block2mtd_dev *dev;
|
||
|
|
+ struct mtd_partition *part;
|
||
|
|
char *name;
|
||
|
|
|
||
|
|
if (!devname)
|
||
|
|
@@ -282,13 +284,16 @@ static struct block2mtd_dev *add_device(
|
||
|
|
|
||
|
|
/* Setup the MTD structure */
|
||
|
|
/* make the name contain the block device in */
|
||
|
|
- name = kasprintf(GFP_KERNEL, "block2mtd: %s", devname);
|
||
|
|
+ if (!mtdname)
|
||
|
|
+ mtdname = devname;
|
||
|
|
+ name = kmalloc(strlen(mtdname) + 1, GFP_KERNEL);
|
||
|
|
if (!name)
|
||
|
|
goto err_destroy_mutex;
|
||
|
|
|
||
|
|
+ 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.writebufsize = PAGE_SIZE;
|
||
|
|
@@ -301,7 +306,11 @@ static struct block2mtd_dev *add_device(
|
||
|
|
dev->mtd.priv = dev;
|
||
|
|
dev->mtd.owner = THIS_MODULE;
|
||
|
|
|
||
|
|
- if (mtd_device_register(&dev->mtd, NULL, 0)) {
|
||
|
|
+ part = kzalloc(sizeof(struct mtd_partition), GFP_KERNEL);
|
||
|
|
+ part->name = name;
|
||
|
|
+ part->offset = 0;
|
||
|
|
+ part->size = dev->mtd.size;
|
||
|
|
+ if (mtd_device_register(&dev->mtd, part, 1)) {
|
||
|
|
/* Device didn't get added, so free the entry */
|
||
|
|
goto err_destroy_mutex;
|
||
|
|
}
|
||
|
|
@@ -309,8 +318,7 @@ static struct block2mtd_dev *add_device(
|
||
|
|
list_add(&dev->list, &blkmtd_device_list);
|
||
|
|
pr_info("mtd%d: [%s] erase_size = %dKiB [%d]\n",
|
||
|
|
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;
|
||
|
|
|
||
|
|
err_destroy_mutex:
|
||
|
|
@@ -383,7 +391,7 @@ static int block2mtd_setup2(const char *
|
||
|
|
/* 80 for device, 12 for erase size, 80 for name, 8 for timeout */
|
||
|
|
char buf[80 + 12 + 80 + 8];
|
||
|
|
char *str = buf;
|
||
|
|
- char *token[2];
|
||
|
|
+ char *token[3];
|
||
|
|
char *name;
|
||
|
|
size_t erase_size = PAGE_SIZE;
|
||
|
|
unsigned long timeout = MTD_DEFAULT_TIMEOUT;
|
||
|
|
@@ -397,7 +405,7 @@ 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) {
|
||
|
|
@@ -423,8 +431,10 @@ static int block2mtd_setup2(const char *
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
+ if (token[2] && (strlen(token[2]) + 1 > 80))
|
||
|
|
+ pr_err("mtd device name too long\n");
|
||
|
|
|
||
|
|
- add_device(name, erase_size, timeout);
|
||
|
|
+ add_device(name, erase_size, token[2], timeout);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
@@ -458,7 +468,7 @@ 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)
|
||
|
|
{
|