UBI: remove data_offset
Linux-MTD Mailing List
linux-mtd at lists.infradead.org
Tue Jan 8 02:59:03 EST 2008
Gitweb: http://git.infradead.org/?p=mtd-2.6.git;a=commit;h=dd38fccfbc77e12417512c38508a5283ea79a375
Commit: dd38fccfbc77e12417512c38508a5283ea79a375
Parent: cdfa788acd134a35d3e5b73d1a76fca4033d8aa9
Author: Artem Bityutskiy <Artem.Bityutskiy at nokia.com>
AuthorDate: Wed Dec 19 21:43:32 2007 +0200
Committer: Artem Bityutskiy <Artem.Bityutskiy at nokia.com>
CommitDate: Wed Dec 26 19:15:17 2007 +0200
UBI: remove data_offset
'data_offset' parameter does not really make sense and it is not
needed. Get rid of it.
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy at nokia.com>
---
drivers/mtd/ubi/build.c | 42 +++++++++++++++---------------------------
drivers/mtd/ubi/ubi.h | 3 +--
2 files changed, 16 insertions(+), 29 deletions(-)
diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c
index 0714543..403c10a 100644
--- a/drivers/mtd/ubi/build.c
+++ b/drivers/mtd/ubi/build.c
@@ -50,13 +50,11 @@
* struct mtd_dev_param - MTD device parameter description data structure.
* @name: MTD device name or number string
* @vid_hdr_offs: VID header offset
- * @data_offs: data offset
*/
struct mtd_dev_param
{
char name[MTD_PARAM_LEN_MAX];
int vid_hdr_offs;
- int data_offs;
};
/* Numbers of elements set in the @mtd_dev_param array */
@@ -512,7 +510,7 @@ static int io_init(struct ubi_device *ubi)
return -EINVAL;
}
- if (ubi->vid_hdr_offset < 0 || ubi->leb_start < ubi->vid_hdr_offset)
+ if (ubi->vid_hdr_offset < 0)
return -EINVAL;
/*
@@ -562,10 +560,8 @@ static int io_init(struct ubi_device *ubi)
}
/* Similar for the data offset */
- if (ubi->leb_start == 0) {
- ubi->leb_start = ubi->vid_hdr_offset + ubi->vid_hdr_alsize;
- ubi->leb_start = ALIGN(ubi->leb_start, ubi->min_io_size);
- }
+ ubi->leb_start = ubi->vid_hdr_offset + ubi->vid_hdr_alsize;
+ ubi->leb_start = ALIGN(ubi->leb_start, ubi->min_io_size);
dbg_msg("vid_hdr_offset %d", ubi->vid_hdr_offset);
dbg_msg("vid_hdr_aloffset %d", ubi->vid_hdr_aloffset);
@@ -626,7 +622,6 @@ static int io_init(struct ubi_device *ubi)
* ubi_attach_mtd_dev - attach an MTD device.
* @mtd_dev: MTD device description object
* @vid_hdr_offset: VID header offset
- * @data_offset: data offset
*
* This function attaches an MTD device to UBI. It first treats @mtd_dev as the
* MTD device name, and tries to open it by this name. If it is unable to open,
@@ -637,8 +632,7 @@ static int io_init(struct ubi_device *ubi)
* Note, the invocations of this function has to be serialized by the
* @ubi_devices_mutex.
*/
-int ubi_attach_mtd_dev(struct mtd_info *mtd, int vid_hdr_offset,
- int data_offset)
+int ubi_attach_mtd_dev(struct mtd_info *mtd, int vid_hdr_offset)
{
struct ubi_device *ubi;
int i, err;
@@ -674,10 +668,9 @@ int ubi_attach_mtd_dev(struct mtd_info *mtd, int vid_hdr_offset,
ubi->mtd = mtd;
ubi->ubi_num = i;
ubi->vid_hdr_offset = vid_hdr_offset;
- ubi->leb_start = data_offset;
- dbg_msg("attaching mtd%d to ubi%d: VID header offset %d data offset %d",
- mtd->index, ubi->ubi_num, vid_hdr_offset, data_offset);
+ dbg_msg("attaching mtd%d to ubi%d: VID header offset %d",
+ mtd->index, ubi->ubi_num, vid_hdr_offset);
err = io_init(ubi);
if (err)
@@ -942,7 +935,7 @@ static int __init ubi_init(void)
}
mutex_lock(&ubi_devices_mutex);
- err = ubi_attach_mtd_dev(mtd, p->vid_hdr_offs, p->data_offs);
+ err = ubi_attach_mtd_dev(mtd, p->vid_hdr_offs);
mutex_unlock(&ubi_devices_mutex);
if (err < 0) {
put_mtd_device(mtd);
@@ -1094,13 +1087,9 @@ static int __init ubi_mtd_param_parse(const char *val, struct kernel_param *kp)
if (tokens[1])
p->vid_hdr_offs = bytes_str_to_int(tokens[1]);
- if (tokens[2])
- p->data_offs = bytes_str_to_int(tokens[2]);
if (p->vid_hdr_offs < 0)
return p->vid_hdr_offs;
- if (p->data_offs < 0)
- return p->data_offs;
mtd_devs += 1;
return 0;
@@ -1108,16 +1097,15 @@ static int __init ubi_mtd_param_parse(const char *val, struct kernel_param *kp)
module_param_call(mtd, ubi_mtd_param_parse, NULL, NULL, 000);
MODULE_PARM_DESC(mtd, "MTD devices to attach. Parameter format: "
- "mtd=<name|num>[,<vid_hdr_offs>,<data_offs>]. "
+ "mtd=<name|num>[,<vid_hdr_offs>].\n"
"Multiple \"mtd\" parameters may be specified.\n"
- "MTD devices may be specified by their number or name. "
- "Optional \"vid_hdr_offs\" and \"data_offs\" parameters "
- "specify UBI VID header position and data starting "
- "position to be used by UBI.\n"
- "Example: mtd=content,1984,2048 mtd=4 - attach MTD device"
- "with name content using VID header offset 1984 and data "
- "start 2048, and MTD device number 4 using default "
- "offsets");
+ "MTD devices may be specified by their number or name.\n"
+ "Optional \"vid_hdr_offs\" parameter specifies UBI VID "
+ "header position and data starting position to be used "
+ "by UBI.\n"
+ "Example: mtd=content,1984 mtd=4 - attach MTD device"
+ "with name \"content\" using VID header offset 1984, and "
+ "MTD device number 4 with default VID header offset.");
MODULE_VERSION(__stringify(UBI_VERSION));
MODULE_DESCRIPTION("UBI - Unsorted Block Images");
diff --git a/drivers/mtd/ubi/ubi.h b/drivers/mtd/ubi/ubi.h
index 25ff15a..4c3607e 100644
--- a/drivers/mtd/ubi/ubi.h
+++ b/drivers/mtd/ubi/ubi.h
@@ -483,8 +483,7 @@ int ubi_io_write_vid_hdr(struct ubi_device *ubi, int pnum,
struct ubi_vid_hdr *vid_hdr);
/* build.c */
-int ubi_attach_mtd_dev(struct mtd_info *mtd, int vid_hdr_offset,
- int data_offset);
+int ubi_attach_mtd_dev(struct mtd_info *mtd, int vid_hdr_offset);
int ubi_detach_mtd_dev(int ubi_num, int anyway);
struct ubi_device *ubi_get_device(int ubi_num);
void ubi_put_device(struct ubi_device *ubi);
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