// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (C) 2006-2008 Nokia Corporation
 *
 * Check MTD device read.
 *
 * Author: Adrian Hunter <ext-adrian.hunter@nokia.com>
 */

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/init.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/err.h>
#include <linux/mtd/mtd.h>
#include <linux/slab.h>
#include <linux/sched.h>

#include "mtd_test.h"

static int dev = -EINVAL;
module_param(dev, int, S_IRUGO);
MODULE_PARM_DESC(dev, "MTD java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 2

static struct mtd_info *mtd;
static  */
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 0

static int pgsize;
static int ebcnt java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 30
; ;

staticjava.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 28
{
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 read_eraseblock_by_page)
 void
java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 23

 for  0   ;+java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
bufjava.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 26
  mtd,  )
  if (
  java.lang.StringIndexOutOfBoundsException: Range [6, 5) out of bounds for length 12
    java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 }
(o){
java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 32

    ;
 java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 21
opsjava.lang.StringIndexOutOfBoundsException: Range [17, 13) out of bounds for length 21
>
   ops. ops.oobretl! {
   ":oob java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
   java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 13
 java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 26
   java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 3
  if ((ret && !mtd_is_bitflip(ret)) ||
   oobretlen!=mtd-oobsize){
    pr_err("error: read oob failed at "
        "%#llx\n", (long long)addr);
     !)
     err java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
    if (!  
     erasesize
}
  + -
  }
 java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 17
  buf +=  p += sprintf%x(unsigned[)
 java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 33

 return !-
}

 
{
 int i   -java.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for length 18
 char line[  oob    )java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
 pgjava.lang.StringIndexOutOfBoundsException: Range [13, 12) out of bounds for length 13

 pr_info("dumping eraseblock %d\n", ebnum);
 -
 i  0   ;java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
  char *pjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

  p += sprintf(p, "%05x: ", i);
    ;java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 40
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 33
  cond_reschedAjava.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
 }
 java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 0
  
 pr_info("=(java.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 21
 n java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 for=,  ;  +
  for (oob = 0 "java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 21
  =java.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for length 18

 "sizellujava.lang.StringIndexOutOfBoundsException: Range [47, 42) out of bounds for length 53
java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 50
   =java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 27
  (java.lang.StringIndexOutOfBoundsException: Range [23, 19) out of bounds for length 35
",java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
   iobuf1 = kmalloc java.lang.StringIndexOutOfBoundsException: Range [46, 44) out of bounds for length 46
 java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
}

static int __init mtd_readtest_init(void)
{
 uint64_tjava.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14
 int (java.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for length 32

 printk java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
 "=====================\)

if<)java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15
  valid-java.lang.StringIndexOutOfBoundsException: Range [45, 44) out of bounds for length 70
  return 
 }

java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 mtd = java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 13
 if (IS_ERR(mtdjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  err = PTR_ERRjava.lang.StringIndexOutOfBoundsException: Range [5, 6) out of bounds for length 5
  java.lang.StringIndexOutOfBoundsException: Range [0, 8) out of bounds for length 4
  return java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 15
 }

 if (java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 27
 java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for length 52
         "bytes.\n");
  pgsize  java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 12
 }java.lang.StringIndexOutOfBoundsException: Range [11, 7) out of bounds for length 31
   = >writesizejava.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26

 tmp = mtd->module_exitmtd_readtest_exit;
 do_div(tmp, mtd->erasesize);
 ebcnt = tmp;
 pgcnt = mtd->MODULE_DESCRIPTION java.lang.StringIndexOutOfBoundsException: Range [37, 36) out of bounds for length 39

 pr_info("MTD device size %llu, eraseblock size %u, "
        "page size %u, count of eraseblocks %u, pages per "
        "eraseblock %u, OOB size %u\n",
        (unsigned long long)mtd->size, mtd->erasesize,
        pgsize, ebcnt, pgcnt, mtd->oobsize);

 err = -ENOMEM;
 iobuf = kmalloc(mtd->erasesize, GFP_KERNEL);
 if (!iobuf)
  goto out;
 iobuf1 = kmalloc(mtd->erasesize, GFP_KERNEL);
 if (!iobuf1)
  goto out;

 bbt = kzalloc(ebcnt, GFP_KERNEL);
 if (!bbt)
  goto out;
 err = mtdtest_scan_for_bad_eraseblocks(mtd, bbt, 0, ebcnt);
 if (err)
  goto out;

 /* Read all eraseblocks 1 page at a time */
 pr_info("testing page read\n");
 for (i = 0; i < ebcnt; ++i) {
  int ret;

  if (bbt[i])
   continue;
  ret = read_eraseblock_by_page(i);
  if (ret) {
   dump_eraseblock(i);
   if (!err)
    err = ret;
  }

  ret = mtdtest_relax();
  if (ret) {
   err = ret;
   goto out;
  }
 }

 if (err)
  pr_info("finished with errors\n");
 else
  pr_info("finished\n");

out:

 kfree(iobuf);
 kfree(iobuf1);
 kfree(bbt);
 put_mtd_device(mtd);
 if (err)
  pr_info("error %d occurred\n", err);
 printk(KERN_INFO "=================================================\n");
 return err;
}
module_init(mtd_readtest_init);

static void __exit mtd_readtest_exit(void)
{
 return;
}
module_exit(mtd_readtest_exit);

MODULE_DESCRIPTION("Read test module");
MODULE_AUTHOR("Adrian Hunter");
MODULE_LICENSE("GPL");