From: Matthieu CASTET <matthieu.castet@parrot.com>
To: "linux-mtd@lists.infradead.org" <linux-mtd@lists.infradead.org>
Subject: [PATCH] ubi : generate random image_seq when attaching empty MTD device
Date: Thu, 3 Jun 2010 16:14:27 +0200 [thread overview]
Message-ID: <4C07B8C3.7080304@parrot.com> (raw)
[-- Attachment #1: Type: text/plain, Size: 151 bytes --]
generate random image_seq when attaching empty MTD device (kernel do the
ubi formating).
Signed-off-by: Matthieu CASTET <matthieu.castet@parrot.com>
[-- Attachment #2: ubi.diff --]
[-- Type: text/x-diff, Size: 706 bytes --]
diff --git a/drivers/mtd/ubi/scan.c b/drivers/mtd/ubi/scan.c
index aed19f3..7a95ff3 100644
--- a/drivers/mtd/ubi/scan.c
+++ b/drivers/mtd/ubi/scan.c
@@ -44,6 +44,7 @@
#include <linux/slab.h>
#include <linux/crc32.h>
#include <linux/math64.h>
+#include <linux/random.h>
#include "ubi.h"
#ifdef CONFIG_MTD_UBI_DEBUG_PARANOID
@@ -935,8 +936,10 @@ struct ubi_scan_info *ubi_scan(struct ubi_device *ubi)
if (si->ec_count)
si->mean_ec = div_u64(si->ec_sum, si->ec_count);
- if (si->is_empty)
+ if (si->is_empty) {
ubi_msg("empty MTD device detected");
+ get_random_bytes(&ubi->image_seq, sizeof(ubi->image_seq));
+ }
/*
* Few corrupted PEBs are not a problem and may be just a result of
next reply other threads:[~2010-06-03 14:14 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-03 14:14 Matthieu CASTET [this message]
2010-06-03 14:25 ` [PATCH] ubi : generate random image_seq when attaching empty MTD device Artem Bityutskiy
2010-06-08 8:45 ` Artem Bityutskiy
2010-06-10 13:37 ` Matthieu CASTET
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