enable docker ppp

hc

2023-12-09 95099d4622f8cb224d94e314c7a8e0df60b13f87

 kernel/drivers/mtd/tests/torturetest.c
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..
@@ -1,20 +1,8 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * Copyright (C) 2006-2008 Artem Bityutskiy
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  * Copyright (C) 2006-2008 Jarkko Lavinen
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  * Copyright (C) 2006-2008 Adrian Hunter
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- *
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- * This program is free software; you can redistribute it and/or modify it
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- * under the terms of the GNU General Public License version 2 as published by
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- * the Free Software Foundation.
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- *
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- * This program is distributed in the hope that it will be useful, but WITHOUT
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- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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- * more details.
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- *
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- * You should have received a copy of the GNU General Public License along with
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- * this program; see the file COPYING. If not, write to the Free Software
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- * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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  *
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  * Authors: Artem Bityutskiy, Jarkko Lavinen, Adria Hunter
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  *
..
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@@ -31,6 +19,7 @@
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 #include <linux/moduleparam.h>
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 #include <linux/err.h>
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 #include <linux/mtd/mtd.h>
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+#include <linux/random.h>
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 #include <linux/slab.h>
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 #include <linux/sched.h>
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 #include "mtd_test.h"
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@@ -66,8 +55,14 @@
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 MODULE_PARM_DESC(cycles_count, "how many erase cycles to do "
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 			       "(infinite by default)");
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57
 
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+static int random_pattern;
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+module_param(random_pattern, int, S_IRUGO);
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+MODULE_PARM_DESC(random_pattern, "if choose random pattern to program");
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+
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 static struct mtd_info *mtd;
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63
 
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+/* This buffer contains random pattern */
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+static unsigned char *patt_random;
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 /* This buffer contains 0x555555...0xAAAAAA... pattern */
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 static unsigned char *patt_5A5;
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 /* This buffer contains 0xAAAAAA...0x555555... pattern */
..
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@@ -222,9 +217,13 @@
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 	}
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 	err = -ENOMEM;
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+	patt_random = kmalloc(mtd->erasesize, GFP_KERNEL);
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+	if (!patt_random)
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+		goto out_mtd;
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+
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 	patt_5A5 = kmalloc(mtd->erasesize, GFP_KERNEL);
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 	if (!patt_5A5)
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-		goto out_mtd;
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+		goto out_patt_random;
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 	patt_A5A = kmalloc(mtd->erasesize, GFP_KERNEL);
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 	if (!patt_A5A)
..
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@@ -255,6 +254,8 @@
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 			memset(patt_A5A + i * pgsize, 0x55, pgsize);
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 		}
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 	}
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+
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+	prandom_bytes(patt_random, mtd->erasesize);
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259
 
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 	err = mtdtest_scan_for_bad_eraseblocks(mtd, bad_ebs, eb, ebcnt);
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 	if (err)
..
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@@ -295,6 +296,8 @@
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 				patt = patt_5A5;
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 			else
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 				patt = patt_A5A;
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+			if (random_pattern)
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+				patt = patt_random;
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 			err = write_pattern(i, patt);
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 			if (err)
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 				goto out;
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@@ -313,8 +316,14 @@
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 					patt = patt_5A5;
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 				else
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 					patt = patt_A5A;
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+				if (random_pattern)
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+					patt = patt_random;
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 				err = check_eraseblock(i, patt);
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 				if (err) {
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+					if (random_pattern) {
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+						pr_info("verify failed for random pattern\n");
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+						goto out;
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+					}
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 					pr_info("verify failed for %s"
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 					       " pattern\n",
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 					       ((eb + erase_cycles) & 1) ?
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@@ -357,6 +366,8 @@
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 	kfree(patt_A5A);
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 out_patt_5A5:
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 	kfree(patt_5A5);
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+out_patt_random:
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+	kfree(patt_random);
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 out_mtd:
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 	put_mtd_device(mtd);
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 	if (err)