mirror of https://gitee.com/openkylin/linux.git
UBI: fix checkpatch.pl errors and warnings
Just out or curiousity ran checkpatch.pl for whole UBI, and discovered there are quite a few of stylistic issues. Fix them. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
This commit is contained in:
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4d88de4beb
commit
9c9ec14770
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@ -51,14 +51,13 @@
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* @name: MTD device name or number string
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* @vid_hdr_offs: VID header offset
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*/
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struct mtd_dev_param
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{
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struct mtd_dev_param {
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char name[MTD_PARAM_LEN_MAX];
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int vid_hdr_offs;
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};
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/* Numbers of elements set in the @mtd_dev_param array */
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static int mtd_devs = 0;
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static int mtd_devs;
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/* MTD devices specification parameters */
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static struct mtd_dev_param mtd_dev_param[UBI_MAX_DEVICES];
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@ -781,7 +780,8 @@ int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num, int vid_hdr_offset)
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if (!ubi_devices[ubi_num])
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break;
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if (ubi_num == UBI_MAX_DEVICES) {
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dbg_err("only %d UBI devices may be created", UBI_MAX_DEVICES);
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dbg_err("only %d UBI devices may be created",
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UBI_MAX_DEVICES);
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return -ENFILE;
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}
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} else {
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@ -39,9 +39,9 @@
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#include <linux/stat.h>
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#include <linux/ioctl.h>
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#include <linux/capability.h>
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#include <linux/uaccess.h>
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#include <linux/smp_lock.h>
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#include <mtd/ubi-user.h>
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#include <asm/uaccess.h>
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#include <asm/div64.h>
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#include "ubi.h"
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@ -352,7 +352,7 @@ static ssize_t vol_cdev_direct_write(struct file *file, const char __user *buf,
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}
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#else
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#define vol_cdev_direct_write(file, buf, count, offp) -EPERM
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#define vol_cdev_direct_write(file, buf, count, offp) (-EPERM)
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#endif /* CONFIG_MTD_UBI_DEBUG_USERSPACE_IO */
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static ssize_t vol_cdev_write(struct file *file, const char __user *buf,
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@ -189,9 +189,7 @@ static struct ubi_ltree_entry *ltree_add_entry(struct ubi_device *ubi,
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le->users += 1;
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spin_unlock(&ubi->ltree_lock);
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if (le_free)
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kfree(le_free);
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kfree(le_free);
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return le;
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}
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@ -503,9 +501,8 @@ static int recover_peb(struct ubi_device *ubi, int pnum, int vol_id, int lnum,
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struct ubi_vid_hdr *vid_hdr;
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vid_hdr = ubi_zalloc_vid_hdr(ubi, GFP_NOFS);
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if (!vid_hdr) {
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if (!vid_hdr)
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return -ENOMEM;
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}
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mutex_lock(&ubi->buf_mutex);
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@ -249,8 +249,8 @@ static int gluebi_erase(struct mtd_info *mtd, struct erase_info *instr)
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if (err)
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goto out_err;
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instr->state = MTD_ERASE_DONE;
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mtd_erase_callback(instr);
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instr->state = MTD_ERASE_DONE;
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mtd_erase_callback(instr);
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return 0;
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out_err:
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@ -167,8 +167,8 @@ int ubi_io_read(const struct ubi_device *ubi, void *buf, int pnum, int offset,
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}
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if (read != len && retries++ < UBI_IO_RETRIES) {
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dbg_io("error %d while reading %d bytes from PEB %d:%d, "
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"read only %zd bytes, retry",
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dbg_io("error %d while reading %d bytes from PEB %d:%d,"
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" read only %zd bytes, retry",
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err, len, pnum, offset, read);
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yield();
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goto retry;
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@ -705,8 +705,8 @@ int ubi_io_read_ec_hdr(struct ubi_device *ubi, int pnum,
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if (hdr_crc != crc) {
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if (verbose) {
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ubi_warn("bad EC header CRC at PEB %d, calculated %#08x,"
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" read %#08x", pnum, crc, hdr_crc);
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ubi_warn("bad EC header CRC at PEB %d, calculated "
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"%#08x, read %#08x", pnum, crc, hdr_crc);
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ubi_dbg_dump_ec_hdr(ec_hdr);
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}
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return UBI_IO_BAD_EC_HDR;
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@ -248,7 +248,8 @@ static int compare_lebs(struct ubi_device *ubi, const struct ubi_scan_leb *seb,
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unsigned long long sqnum2 = be64_to_cpu(vid_hdr->sqnum);
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if (seb->sqnum == 0 && sqnum2 == 0) {
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long long abs, v1 = seb->leb_ver, v2 = be32_to_cpu(vid_hdr->leb_ver);
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long long abs;
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long long v1 = seb->leb_ver, v2 = be32_to_cpu(vid_hdr->leb_ver);
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/*
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* UBI constantly increases the logical eraseblock version
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@ -752,7 +753,8 @@ struct ubi_scan_leb *ubi_scan_get_free_peb(struct ubi_device *ubi,
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* This function returns a zero if the physical eraseblock was successfully
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* handled and a negative error code in case of failure.
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*/
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static int process_eb(struct ubi_device *ubi, struct ubi_scan_info *si, int pnum)
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static int process_eb(struct ubi_device *ubi, struct ubi_scan_info *si,
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int pnum)
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{
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long long uninitialized_var(ec);
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int err, bitflips = 0, vol_id, ec_corr = 0;
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@ -1301,8 +1303,7 @@ static int paranoid_check_si(struct ubi_device *ubi, struct ubi_scan_info *si)
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if (err < 0) {
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kfree(buf);
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return err;
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}
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else if (err)
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} else if (err)
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buf[pnum] = 1;
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}
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@ -473,7 +473,8 @@ int ubi_more_leb_change_data(struct ubi_device *ubi, struct ubi_volume *vol,
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const void __user *buf, int count);
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/* misc.c */
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int ubi_calc_data_len(const struct ubi_device *ubi, const void *buf, int length);
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int ubi_calc_data_len(const struct ubi_device *ubi, const void *buf,
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int length);
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int ubi_check_volume(struct ubi_device *ubi, int vol_id);
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void ubi_calculate_reserved(struct ubi_device *ubi);
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@ -39,7 +39,7 @@
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*/
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#include <linux/err.h>
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#include <asm/uaccess.h>
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#include <linux/uaccess.h>
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#include <asm/div64.h>
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#include "ubi.h"
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@ -246,7 +246,8 @@ static int write_leb(struct ubi_device *ubi, struct ubi_volume *vol, int lnum,
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return 0;
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}
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err = ubi_eba_write_leb(ubi, vol, lnum, buf, 0, len, UBI_UNKNOWN);
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err = ubi_eba_write_leb(ubi, vol, lnum, buf, 0, len,
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UBI_UNKNOWN);
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} else {
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/*
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* When writing static volume, and this is the last logical
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@ -418,7 +419,8 @@ int ubi_more_leb_change_data(struct ubi_device *ubi, struct ubi_volume *vol,
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if (vol->upd_received == vol->upd_bytes) {
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int len = ALIGN((int)vol->upd_bytes, ubi->min_io_size);
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memset(vol->upd_buf + vol->upd_bytes, 0xFF, len - vol->upd_bytes);
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memset(vol->upd_buf + vol->upd_bytes, 0xFF,
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len - vol->upd_bytes);
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len = ubi_calc_data_len(ubi, vol->upd_buf, len);
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err = ubi_eba_atomic_leb_change(ubi, vol, vol->ch_lnum,
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vol->upd_buf, len, UBI_UNKNOWN);
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@ -253,7 +253,7 @@ int ubi_create_volume(struct ubi_device *ubi, struct ubi_mkvol_req *req)
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goto out_unlock;
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}
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/* Calculate how many eraseblocks are requested */
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/* Calculate how many eraseblocks are requested */
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vol->usable_leb_size = ubi->leb_size - ubi->leb_size % req->alignment;
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bytes = req->bytes;
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if (do_div(bytes, vol->usable_leb_size))
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@ -858,7 +858,7 @@ static int paranoid_check_volume(struct ubi_device *ubi, int vol_id)
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if (alignment != vol->alignment || data_pad != vol->data_pad ||
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upd_marker != vol->upd_marker || vol_type != vol->vol_type ||
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name_len!= vol->name_len || strncmp(name, vol->name, name_len)) {
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name_len != vol->name_len || strncmp(name, vol->name, name_len)) {
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ubi_err("volume info is different");
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goto fail;
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}
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@ -461,7 +461,8 @@ static struct ubi_vtbl_record *process_lvol(struct ubi_device *ubi,
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if (!leb_corrupted[0]) {
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/* LEB 0 is OK */
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if (leb[1])
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leb_corrupted[1] = memcmp(leb[0], leb[1], ubi->vtbl_size);
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leb_corrupted[1] = memcmp(leb[0], leb[1],
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ubi->vtbl_size);
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if (leb_corrupted[1]) {
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ubi_warn("volume table copy #2 is corrupted");
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err = create_vtbl(ubi, si, 1, leb[0]);
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@ -859,11 +860,10 @@ int ubi_read_volume_table(struct ubi_device *ubi, struct ubi_scan_info *si)
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out_free:
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vfree(ubi->vtbl);
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for (i = 0; i < ubi->vtbl_slots + UBI_INT_VOL_COUNT; i++)
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if (ubi->volumes[i]) {
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kfree(ubi->volumes[i]);
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ubi->volumes[i] = NULL;
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}
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for (i = 0; i < ubi->vtbl_slots + UBI_INT_VOL_COUNT; i++) {
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kfree(ubi->volumes[i]);
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ubi->volumes[i] = NULL;
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}
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return err;
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}
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@ -475,52 +475,47 @@ int ubi_wl_get_peb(struct ubi_device *ubi, int dtype)
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}
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switch (dtype) {
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case UBI_LONGTERM:
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/*
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* For long term data we pick a physical eraseblock
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* with high erase counter. But the highest erase
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* counter we can pick is bounded by the the lowest
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* erase counter plus %WL_FREE_MAX_DIFF.
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*/
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e = find_wl_entry(&ubi->free, WL_FREE_MAX_DIFF);
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protect = LT_PROTECTION;
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break;
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case UBI_UNKNOWN:
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/*
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* For unknown data we pick a physical eraseblock with
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* medium erase counter. But we by no means can pick a
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* physical eraseblock with erase counter greater or
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* equivalent than the lowest erase counter plus
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* %WL_FREE_MAX_DIFF.
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*/
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first = rb_entry(rb_first(&ubi->free),
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struct ubi_wl_entry, rb);
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last = rb_entry(rb_last(&ubi->free),
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struct ubi_wl_entry, rb);
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case UBI_LONGTERM:
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/*
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* For long term data we pick a physical eraseblock with high
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* erase counter. But the highest erase counter we can pick is
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* bounded by the the lowest erase counter plus
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* %WL_FREE_MAX_DIFF.
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*/
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e = find_wl_entry(&ubi->free, WL_FREE_MAX_DIFF);
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protect = LT_PROTECTION;
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break;
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case UBI_UNKNOWN:
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/*
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* For unknown data we pick a physical eraseblock with medium
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* erase counter. But we by no means can pick a physical
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* eraseblock with erase counter greater or equivalent than the
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* lowest erase counter plus %WL_FREE_MAX_DIFF.
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*/
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first = rb_entry(rb_first(&ubi->free), struct ubi_wl_entry, rb);
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last = rb_entry(rb_last(&ubi->free), struct ubi_wl_entry, rb);
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if (last->ec - first->ec < WL_FREE_MAX_DIFF)
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e = rb_entry(ubi->free.rb_node,
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struct ubi_wl_entry, rb);
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else {
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medium_ec = (first->ec + WL_FREE_MAX_DIFF)/2;
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e = find_wl_entry(&ubi->free, medium_ec);
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}
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protect = U_PROTECTION;
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break;
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case UBI_SHORTTERM:
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/*
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* For short term data we pick a physical eraseblock
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* with the lowest erase counter as we expect it will
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* be erased soon.
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*/
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e = rb_entry(rb_first(&ubi->free),
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struct ubi_wl_entry, rb);
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protect = ST_PROTECTION;
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break;
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default:
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protect = 0;
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e = NULL;
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BUG();
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if (last->ec - first->ec < WL_FREE_MAX_DIFF)
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e = rb_entry(ubi->free.rb_node,
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struct ubi_wl_entry, rb);
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else {
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medium_ec = (first->ec + WL_FREE_MAX_DIFF)/2;
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e = find_wl_entry(&ubi->free, medium_ec);
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}
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protect = U_PROTECTION;
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break;
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case UBI_SHORTTERM:
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/*
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* For short term data we pick a physical eraseblock with the
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* lowest erase counter as we expect it will be erased soon.
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*/
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e = rb_entry(rb_first(&ubi->free), struct ubi_wl_entry, rb);
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protect = ST_PROTECTION;
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break;
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default:
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protect = 0;
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e = NULL;
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BUG();
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}
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/*
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@ -584,7 +579,8 @@ static int prot_tree_del(struct ubi_device *ubi, int pnum)
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* This function returns zero in case of success and a negative error code in
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* case of failure.
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*/
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static int sync_erase(struct ubi_device *ubi, struct ubi_wl_entry *e, int torture)
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static int sync_erase(struct ubi_device *ubi, struct ubi_wl_entry *e,
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int torture)
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{
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int err;
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struct ubi_ec_hdr *ec_hdr;
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@ -1060,8 +1056,8 @@ static int erase_worker(struct ubi_device *ubi, struct ubi_work *wl_wrk,
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spin_unlock(&ubi->wl_lock);
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/*
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* One more erase operation has happened, take care about protected
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* physical eraseblocks.
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* One more erase operation has happened, take care about
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* protected physical eraseblocks.
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*/
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check_protection_over(ubi);
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@ -188,14 +188,14 @@ enum {
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* it will be 512 in case of a 2KiB page NAND flash with 4 512-byte sub-pages.
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*
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* But in rare cases, if this optimizes things, the VID header may be placed to
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* a different offset. For example, the boot-loader might do things faster if the
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* VID header sits at the end of the first 2KiB NAND page with 4 sub-pages. As
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* the boot-loader would not normally need to read EC headers (unless it needs
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* UBI in RW mode), it might be faster to calculate ECC. This is weird example,
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* but it real-life example. So, in this example, @vid_hdr_offer would be
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* 2KiB-64 bytes = 1984. Note, that this position is not even 512-bytes
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* aligned, which is OK, as UBI is clever enough to realize this is 4th sub-page
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* of the first page and add needed padding.
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* a different offset. For example, the boot-loader might do things faster if
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* the VID header sits at the end of the first 2KiB NAND page with 4 sub-pages.
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* As the boot-loader would not normally need to read EC headers (unless it
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* needs UBI in RW mode), it might be faster to calculate ECC. This is weird
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* example, but it real-life example. So, in this example, @vid_hdr_offer would
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* be 2KiB-64 bytes = 1984. Note, that this position is not even 512-bytes
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* aligned, which is OK, as UBI is clever enough to realize this is 4th
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* sub-page of the first page and add needed padding.
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*/
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struct ubi_attach_req {
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int32_t ubi_num;
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