From: "zhaoxiu.zeng" <zhaoxiu.zeng@gmail.com>
To: David Woodhouse <dwmw2@infradead.org>,
Brian Norris <computersforpeace@gmail.com>
Cc: linux-kernel@vger.kernel.org, linux-mtd@lists.infradead.org
Subject: [PATCH 24/31] mtd: use parity16 in sm_ftl.c
Date: Sun, 27 Mar 2016 15:33:26 +0800 [thread overview]
Message-ID: <56F78CC5.9010503@gmail.com> (raw)
In-Reply-To: <1458788612-4367-1-git-send-email-zhaoxiu.zeng@gmail.com>
From: Zeng Zhaoxiu <zhaoxiu.zeng@gmail.com>
Signed-off-by: Zeng Zhaoxiu <zhaoxiu.zeng@gmail.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
prev parent reply other threads:[~2016-03-27 7:34 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1458788612-4367-1-git-send-email-zhaoxiu.zeng@gmail.com>
2016-03-27 7:24 ` [PATCH 21/31] mtd: use parity16 in ssfdc.c zhaoxiu.zeng
2016-04-01 23:48 ` Brian Norris
2016-03-27 7:27 ` [PATCH 22/31] mtd: use parity functions in inftlcore.c zhaoxiu.zeng
2016-03-27 7:33 ` zhaoxiu.zeng [this message]
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