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Diffstat (limited to 'drivers/mtd/ubi/debug.c')
-rw-r--r--drivers/mtd/ubi/debug.c137
1 files changed, 64 insertions, 73 deletions
diff --git a/drivers/mtd/ubi/debug.c b/drivers/mtd/ubi/debug.c
index 61af9bb560a..9f957c2d48e 100644
--- a/drivers/mtd/ubi/debug.c
+++ b/drivers/mtd/ubi/debug.c
@@ -18,24 +18,49 @@
* Author: Artem Bityutskiy (Битюцкий Артём)
*/
-/*
- * Here we keep all the UBI debugging stuff which should normally be disabled
- * and compiled-out, but it is extremely helpful when hunting bugs or doing big
- * changes.
- */
-
-#ifdef CONFIG_MTD_UBI_DEBUG
-
#include "ubi.h"
#include <linux/debugfs.h>
#include <linux/uaccess.h>
#include <linux/module.h>
+
+/**
+ * ubi_dump_flash - dump a region of flash.
+ * @ubi: UBI device description object
+ * @pnum: the physical eraseblock number to dump
+ * @offset: the starting offset within the physical eraseblock to dump
+ * @len: the length of the region to dump
+ */
+void ubi_dump_flash(struct ubi_device *ubi, int pnum, int offset, int len)
+{
+ int err;
+ size_t read;
+ void *buf;
+ loff_t addr = (loff_t)pnum * ubi->peb_size + offset;
+
+ buf = vmalloc(len);
+ if (!buf)
+ return;
+ err = mtd_read(ubi->mtd, addr, len, &read, buf);
+ if (err && err != -EUCLEAN) {
+ ubi_err("error %d while reading %d bytes from PEB %d:%d, "
+ "read %zd bytes", err, len, pnum, offset, read);
+ goto out;
+ }
+
+ ubi_msg("dumping %d bytes of data from PEB %d, offset %d",
+ len, pnum, offset);
+ print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 32, 1, buf, len, 1);
+out:
+ vfree(buf);
+ return;
+}
+
/**
- * ubi_dbg_dump_ec_hdr - dump an erase counter header.
+ * ubi_dump_ec_hdr - dump an erase counter header.
* @ec_hdr: the erase counter header to dump
*/
-void ubi_dbg_dump_ec_hdr(const struct ubi_ec_hdr *ec_hdr)
+void ubi_dump_ec_hdr(const struct ubi_ec_hdr *ec_hdr)
{
printk(KERN_DEBUG "Erase counter header dump:\n");
printk(KERN_DEBUG "\tmagic %#08x\n",
@@ -57,10 +82,10 @@ void ubi_dbg_dump_ec_hdr(const struct ubi_ec_hdr *ec_hdr)
}
/**
- * ubi_dbg_dump_vid_hdr - dump a volume identifier header.
+ * ubi_dump_vid_hdr - dump a volume identifier header.
* @vid_hdr: the volume identifier header to dump
*/
-void ubi_dbg_dump_vid_hdr(const struct ubi_vid_hdr *vid_hdr)
+void ubi_dump_vid_hdr(const struct ubi_vid_hdr *vid_hdr)
{
printk(KERN_DEBUG "Volume identifier header dump:\n");
printk(KERN_DEBUG "\tmagic %08x\n", be32_to_cpu(vid_hdr->magic));
@@ -82,10 +107,10 @@ void ubi_dbg_dump_vid_hdr(const struct ubi_vid_hdr *vid_hdr)
}
/**
- * ubi_dbg_dump_vol_info- dump volume information.
+ * ubi_dump_vol_info - dump volume information.
* @vol: UBI volume description object
*/
-void ubi_dbg_dump_vol_info(const struct ubi_volume *vol)
+void ubi_dump_vol_info(const struct ubi_volume *vol)
{
printk(KERN_DEBUG "Volume information dump:\n");
printk(KERN_DEBUG "\tvol_id %d\n", vol->vol_id);
@@ -112,11 +137,11 @@ void ubi_dbg_dump_vol_info(const struct ubi_volume *vol)
}
/**
- * ubi_dbg_dump_vtbl_record - dump a &struct ubi_vtbl_record object.
+ * ubi_dump_vtbl_record - dump a &struct ubi_vtbl_record object.
* @r: the object to dump
* @idx: volume table index
*/
-void ubi_dbg_dump_vtbl_record(const struct ubi_vtbl_record *r, int idx)
+void ubi_dump_vtbl_record(const struct ubi_vtbl_record *r, int idx)
{
int name_len = be16_to_cpu(r->name_len);
@@ -146,44 +171,44 @@ void ubi_dbg_dump_vtbl_record(const struct ubi_vtbl_record *r, int idx)
}
/**
- * ubi_dbg_dump_sv - dump a &struct ubi_scan_volume object.
- * @sv: the object to dump
+ * ubi_dump_av - dump a &struct ubi_ainf_volume object.
+ * @av: the object to dump
*/
-void ubi_dbg_dump_sv(const struct ubi_scan_volume *sv)
+void ubi_dump_av(const struct ubi_ainf_volume *av)
{
- printk(KERN_DEBUG "Volume scanning information dump:\n");
- printk(KERN_DEBUG "\tvol_id %d\n", sv->vol_id);
- printk(KERN_DEBUG "\thighest_lnum %d\n", sv->highest_lnum);
- printk(KERN_DEBUG "\tleb_count %d\n", sv->leb_count);
- printk(KERN_DEBUG "\tcompat %d\n", sv->compat);
- printk(KERN_DEBUG "\tvol_type %d\n", sv->vol_type);
- printk(KERN_DEBUG "\tused_ebs %d\n", sv->used_ebs);
- printk(KERN_DEBUG "\tlast_data_size %d\n", sv->last_data_size);
- printk(KERN_DEBUG "\tdata_pad %d\n", sv->data_pad);
+ printk(KERN_DEBUG "Volume attaching information dump:\n");
+ printk(KERN_DEBUG "\tvol_id %d\n", av->vol_id);
+ printk(KERN_DEBUG "\thighest_lnum %d\n", av->highest_lnum);
+ printk(KERN_DEBUG "\tleb_count %d\n", av->leb_count);
+ printk(KERN_DEBUG "\tcompat %d\n", av->compat);
+ printk(KERN_DEBUG "\tvol_type %d\n", av->vol_type);
+ printk(KERN_DEBUG "\tused_ebs %d\n", av->used_ebs);
+ printk(KERN_DEBUG "\tlast_data_size %d\n", av->last_data_size);
+ printk(KERN_DEBUG "\tdata_pad %d\n", av->data_pad);
}
/**
- * ubi_dbg_dump_seb - dump a &struct ubi_scan_leb object.
- * @seb: the object to dump
+ * ubi_dump_aeb - dump a &struct ubi_ainf_peb object.
+ * @aeb: the object to dump
* @type: object type: 0 - not corrupted, 1 - corrupted
*/
-void ubi_dbg_dump_seb(const struct ubi_scan_leb *seb, int type)
+void ubi_dump_aeb(const struct ubi_ainf_peb *aeb, int type)
{
- printk(KERN_DEBUG "eraseblock scanning information dump:\n");
- printk(KERN_DEBUG "\tec %d\n", seb->ec);
- printk(KERN_DEBUG "\tpnum %d\n", seb->pnum);
+ printk(KERN_DEBUG "eraseblock attaching information dump:\n");
+ printk(KERN_DEBUG "\tec %d\n", aeb->ec);
+ printk(KERN_DEBUG "\tpnum %d\n", aeb->pnum);
if (type == 0) {
- printk(KERN_DEBUG "\tlnum %d\n", seb->lnum);
- printk(KERN_DEBUG "\tscrub %d\n", seb->scrub);
- printk(KERN_DEBUG "\tsqnum %llu\n", seb->sqnum);
+ printk(KERN_DEBUG "\tlnum %d\n", aeb->lnum);
+ printk(KERN_DEBUG "\tscrub %d\n", aeb->scrub);
+ printk(KERN_DEBUG "\tsqnum %llu\n", aeb->sqnum);
}
}
/**
- * ubi_dbg_dump_mkvol_req - dump a &struct ubi_mkvol_req object.
+ * ubi_dump_mkvol_req - dump a &struct ubi_mkvol_req object.
* @req: the object to dump
*/
-void ubi_dbg_dump_mkvol_req(const struct ubi_mkvol_req *req)
+void ubi_dump_mkvol_req(const struct ubi_mkvol_req *req)
{
char nm[17];
@@ -200,38 +225,6 @@ void ubi_dbg_dump_mkvol_req(const struct ubi_mkvol_req *req)
}
/**
- * ubi_dbg_dump_flash - dump a region of flash.
- * @ubi: UBI device description object
- * @pnum: the physical eraseblock number to dump
- * @offset: the starting offset within the physical eraseblock to dump
- * @len: the length of the region to dump
- */
-void ubi_dbg_dump_flash(struct ubi_device *ubi, int pnum, int offset, int len)
-{
- int err;
- size_t read;
- void *buf;
- loff_t addr = (loff_t)pnum * ubi->peb_size + offset;
-
- buf = vmalloc(len);
- if (!buf)
- return;
- err = mtd_read(ubi->mtd, addr, len, &read, buf);
- if (err && err != -EUCLEAN) {
- ubi_err("error %d while reading %d bytes from PEB %d:%d, "
- "read %zd bytes", err, len, pnum, offset, read);
- goto out;
- }
-
- dbg_msg("dumping %d bytes of data from PEB %d, offset %d",
- len, pnum, offset);
- print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 32, 1, buf, len, 1);
-out:
- vfree(buf);
- return;
-}
-
-/**
* ubi_debugging_init_dev - initialize debugging for an UBI device.
* @ubi: UBI device description object
*
@@ -479,5 +472,3 @@ void ubi_debugfs_exit_dev(struct ubi_device *ubi)
{
debugfs_remove_recursive(ubi->dbg->dfs_dir);
}
-
-#endif /* CONFIG_MTD_UBI_DEBUG */
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-16 21:37:55 +0000