From f70575805708cabdedea7498aaa3f710fde4d920 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 31 Jan 2024 03:29:01 +0000
Subject: [PATCH] add lvds1024*800
---
kernel/drivers/mtd/tests/torturetest.c | 39 +++++++++++++++++++++++++--------------
1 files changed, 25 insertions(+), 14 deletions(-)
diff --git a/kernel/drivers/mtd/tests/torturetest.c b/kernel/drivers/mtd/tests/torturetest.c
index 93c2729..51256a4 100644
--- a/kernel/drivers/mtd/tests/torturetest.c
+++ b/kernel/drivers/mtd/tests/torturetest.c
@@ -1,20 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2006-2008 Artem Bityutskiy
* Copyright (C) 2006-2008 Jarkko Lavinen
* Copyright (C) 2006-2008 Adrian Hunter
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; see the file COPYING. If not, write to the Free Software
- * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* Authors: Artem Bityutskiy, Jarkko Lavinen, Adria Hunter
*
@@ -31,6 +19,7 @@
#include <linux/moduleparam.h>
#include <linux/err.h>
#include <linux/mtd/mtd.h>
+#include <linux/random.h>
#include <linux/slab.h>
#include <linux/sched.h>
#include "mtd_test.h"
@@ -66,8 +55,14 @@
MODULE_PARM_DESC(cycles_count, "how many erase cycles to do "
"(infinite by default)");
+static int random_pattern;
+module_param(random_pattern, int, S_IRUGO);
+MODULE_PARM_DESC(random_pattern, "if choose random pattern to program");
+
static struct mtd_info *mtd;
+/* This buffer contains random pattern */
+static unsigned char *patt_random;
/* This buffer contains 0x555555...0xAAAAAA... pattern */
static unsigned char *patt_5A5;
/* This buffer contains 0xAAAAAA...0x555555... pattern */
@@ -222,9 +217,13 @@
}
err = -ENOMEM;
+ patt_random = kmalloc(mtd->erasesize, GFP_KERNEL);
+ if (!patt_random)
+ goto out_mtd;
+
patt_5A5 = kmalloc(mtd->erasesize, GFP_KERNEL);
if (!patt_5A5)
- goto out_mtd;
+ goto out_patt_random;
patt_A5A = kmalloc(mtd->erasesize, GFP_KERNEL);
if (!patt_A5A)
@@ -255,6 +254,8 @@
memset(patt_A5A + i * pgsize, 0x55, pgsize);
}
}
+
+ prandom_bytes(patt_random, mtd->erasesize);
err = mtdtest_scan_for_bad_eraseblocks(mtd, bad_ebs, eb, ebcnt);
if (err)
@@ -295,6 +296,8 @@
patt = patt_5A5;
else
patt = patt_A5A;
+ if (random_pattern)
+ patt = patt_random;
err = write_pattern(i, patt);
if (err)
goto out;
@@ -313,8 +316,14 @@
patt = patt_5A5;
else
patt = patt_A5A;
+ if (random_pattern)
+ patt = patt_random;
err = check_eraseblock(i, patt);
if (err) {
+ if (random_pattern) {
+ pr_info("verify failed for random pattern\n");
+ goto out;
+ }
pr_info("verify failed for %s"
" pattern\n",
((eb + erase_cycles) & 1) ?
@@ -357,6 +366,8 @@
kfree(patt_A5A);
out_patt_5A5:
kfree(patt_5A5);
+out_patt_random:
+ kfree(patt_random);
out_mtd:
put_mtd_device(mtd);
if (err)
--
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