linux-kernel - [PATCH 24/31] mtd: use parity16 in sm

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Message-ID: <56F78CC5.9010503@gmail.com>
Date:	Sun, 27 Mar 2016 15:33:26 +0800
From:	"zhaoxiu.zeng" <zhaoxiu.zeng@...il.com>
To:	David Woodhouse <dwmw2@...radead.org>,
	Brian Norris <computersforpeace@...il.com>
Cc:	linux-kernel@...r.kernel.org, linux-mtd@...ts.infradead.org
Subject: [PATCH 24/31] mtd: use parity16 in sm_ftl.c

From: Zeng Zhaoxiu <zhaoxiu.zeng@...il.com>

Signed-off-by: Zeng Zhaoxiu <zhaoxiu.zeng@...il.com>
---
 drivers/mtd/sm_ftl.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/sm_ftl.c b/drivers/mtd/sm_ftl.c
index b096f8b..2244588 100644
--- a/drivers/mtd/sm_ftl.c
+++ b/drivers/mtd/sm_ftl.c
@@ -136,7 +136,7 @@ static int sm_get_lba(uint8_t *lba)
 		return -2;
 
 	/* check parity - endianness doesn't matter */
-	if (hweight16(*(uint16_t *)lba) & 1)
+	if (parity16(*(uint16_t *)lba))
 		return -2;
 
 	return (lba[1] >> 1) | ((lba[0] & 0x07) << 7);
@@ -183,7 +183,7 @@ static void sm_write_lba(struct sm_oob *oob, uint16_t lba)
 	tmp[0] = 0x10 | ((lba >> 7) & 0x07);
 	tmp[1] = (lba << 1) & 0xFF;
 
-	if (hweight16(*(uint16_t *)tmp) & 0x01)
+	if (parity16(*(uint16_t *)tmp))
 		tmp[1] |= 1;
 
 	oob->lba_copy1[0] = oob->lba_copy2[0] = tmp[0];
-- 
2.5.5