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From: Akinobu Mita <akinobu.mita@gmail.com>
To: linux-kernel@vger.kernel.org, akpm@linux-foundation.org
Cc: linux-mtd@lists.infradead.org,
	David Woodhouse <dwmw2@infradead.org>,
	Akinobu Mita <akinobu.mita@gmail.com>,
	Artem Bityutskiy <dedekind1@gmail.com>
Subject: [PATCH v3 04/11] mtd: nandsim: use prandom_bytes
Date: Tue, 13 Nov 2012 22:37:03 +0900	[thread overview]
Message-ID: <1352813830-4624-5-git-send-email-akinobu.mita@gmail.com> (raw)
In-Reply-To: <1352813830-4624-1-git-send-email-akinobu.mita@gmail.com>

This also removes unnecessary memset call which is immediately overwritten
with random bytes.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Artem Bityutskiy <dedekind1@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: linux-mtd@lists.infradead.org
---
* v3
- rename random32_get_bytes to prandom_bytes

 drivers/mtd/nand/nandsim.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c
index a932c48..c3c13e6 100644
--- a/drivers/mtd/nand/nandsim.c
+++ b/drivers/mtd/nand/nandsim.c
@@ -1397,10 +1397,7 @@ int do_read_error(struct nandsim *ns, int num)
 	unsigned int page_no = ns->regs.row;
 
 	if (read_error(page_no)) {
-		int i;
-		memset(ns->buf.byte, 0xFF, num);
-		for (i = 0; i < num; ++i)
-			ns->buf.byte[i] = random32();
+		prandom_bytes(ns->buf.byte, num);
 		NS_WARN("simulating read error in page %u\n", page_no);
 		return 1;
 	}
-- 
1.7.11.7

  parent reply	other threads:[~2012-11-13 13:37 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-11-13 13:36 [PATCH v3 00/11] rename random32 to prandom and introduce prandom_bytes() Akinobu Mita
2012-11-13 13:37 ` [PATCH v3 02/11] prandom: introduce prandom_bytes() and prandom_bytes_state() Akinobu Mita
2012-11-13 13:37 ` Akinobu Mita [this message]
2012-11-13 13:37 ` [PATCH v3 05/11] ubifs: use prandom_bytes Akinobu Mita
2012-11-13 13:37 ` [PATCH v3 06/11] mtd: mtd_nandecctest: use prandom_bytes instead of get_random_bytes() Akinobu Mita
2012-11-13 13:37 ` [PATCH v3 07/11] mtd: mtd_oobtest: convert to use prandom library Akinobu Mita
2012-11-13 13:37 ` [PATCH v3 08/11] mtd: mtd_pagetest: " Akinobu Mita
2012-11-13 13:37 ` [PATCH v3 09/11] mtd: mtd_speedtest: use prandom_bytes Akinobu Mita
2012-11-13 13:37 ` [PATCH v3 10/11] mtd: mtd_subpagetest: convert to use prandom library Akinobu Mita
2012-11-13 13:37 ` [PATCH v3 11/11] mtd: mtd_stresstest: use prandom_bytes() Akinobu Mita
2012-11-13 19:55 ` [PATCH v3 00/11] rename random32 to prandom and introduce prandom_bytes() Andrew Morton

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