From: zengzhaoxiu@163.com
To: linux-kernel@vger.kernel.org, computersforpeace@gmail.com
Cc: Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com>,
David Woodhouse <dwmw2@infradead.org>,
linux-mtd@lists.infradead.org
Subject: [patch V4 22/31] mtd: use parity16 in sm_ftl
Date: Wed, 11 May 2016 17:22:03 +0800 [thread overview]
Message-ID: <1462958523-25706-1-git-send-email-zengzhaoxiu@163.com> (raw)
In-Reply-To: <1462955158-28394-1-git-send-email-zengzhaoxiu@163.com>
From: Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com>
Signed-off-by: Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com>
---
drivers/mtd/sm_ftl.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/mtd/sm_ftl.c b/drivers/mtd/sm_ftl.c
index b096f8b..345ff1a 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);
@@ -183,8 +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)
- tmp[1] |= 1;
+ tmp[1] |= parity16(*(uint16_t *)tmp);
oob->lba_copy1[0] = oob->lba_copy2[0] = tmp[0];
oob->lba_copy1[1] = oob->lba_copy2[1] = tmp[1];
--
2.7.4
next prev parent reply other threads:[~2016-05-11 9:23 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-11 8:25 [patch V4 00/31] bitops: add parity functions zengzhaoxiu
2016-05-11 8:47 ` [patch V4 01/31] " zengzhaoxiu
2016-05-11 14:32 ` Martin Kepplinger
2016-05-11 9:06 ` [patch V4 02/31] bitops: Include generic parity.h in some architectures' bitops.h zengzhaoxiu
2016-05-11 10:06 ` Jesper Nilsson
2016-05-11 10:42 ` Catalin Marinas
2016-05-11 13:52 ` Vineet Gupta
2016-05-11 15:24 ` Mark Salter
2016-05-11 9:09 ` [patch V4 03/31] bitops: Add alpha-specific parity functions zengzhaoxiu
2016-05-11 9:09 ` [patch V4 04/31] bitops: Add blackfin-specific " zengzhaoxiu
2016-05-11 9:10 ` [patch V4 05/31] bitops: Add ia-specific " zengzhaoxiu
2016-06-29 15:15 ` [patch V4 05/31] bitops: Add ia64-specific " zengzhaoxiu
2016-05-11 9:10 ` [patch V4 06/31] bitops: Tile and MIPS (if has usable __builtin_popcount) use popcount " zengzhaoxiu
2016-05-11 9:11 ` [patch V4 07/31] bitops: Add powerpc-specific " zengzhaoxiu
2016-05-11 9:13 ` [patch V4 08/31] bitops: Add sparc-specific " zengzhaoxiu
2016-05-11 23:59 ` David Miller
2016-05-11 9:16 ` [patch V4 09/31] bitops: Add x86-specific " zengzhaoxiu
2016-05-11 9:31 ` Peter Zijlstra
2016-05-11 9:52 ` Borislav Petkov
2016-05-16 15:49 ` Zhaoxiu Zeng
2016-05-16 17:06 ` Peter Zijlstra
2016-05-16 19:22 ` H. Peter Anvin
2016-05-17 11:22 ` Peter Zijlstra
2016-05-16 19:19 ` H. Peter Anvin
2016-06-29 15:04 ` zengzhaoxiu
2016-05-11 9:17 ` [patch V4 10/31] sunrpc: use parity8 zengzhaoxiu
2016-05-11 9:17 ` [patch V4 11/31] mips: use parity functions in cerr-sb1.c zengzhaoxiu
2016-05-11 9:18 ` [patch V4 12/31] lib: bch: use parity32 zengzhaoxiu
2016-05-11 9:18 ` [patch V4 13/31] media: use parity8 in vivid-vbi-gen.c zengzhaoxiu
2016-05-11 9:19 ` [patch V4 14/31] media: use parity functions in saa7115 zengzhaoxiu
2016-07-01 11:53 ` Hans Verkuil
2016-05-11 9:19 ` [patch V4 15/31] input: use parity32 in grip_mp zengzhaoxiu
2016-05-11 9:19 ` [patch V4 16/31] input: use parity64 in sidewinder zengzhaoxiu
2016-05-11 9:19 ` [patch V4 17/31] input: use parity16 in ams_delta_serio zengzhaoxiu
2016-05-11 9:19 ` [patch V4 18/31] scsi: use parity32 in isci's phy zengzhaoxiu
2016-05-11 9:20 ` [patch V4 19/31] mtd: use parity16 in ssfdc zengzhaoxiu
2016-05-11 9:21 ` [patch V4 20/31] mtd: use parity functions in inftlcore zengzhaoxiu
2016-05-11 9:21 ` [patch V4 21/31] crypto: use parity functions in qat_hal zengzhaoxiu
2016-05-11 9:22 ` zengzhaoxiu [this message]
2016-05-11 9:22 ` [patch V4 23/31] ethernet: use parity8 in sun/niu.c zengzhaoxiu
2016-05-11 23:59 ` David Miller
2016-05-11 9:22 ` [patch V4 24/31] input: use parity8 in pcips2 zengzhaoxiu
2016-05-11 9:22 ` [patch V4 25/31] input: use parity8 in sa1111ps2 zengzhaoxiu
2016-05-11 9:22 ` [patch V4 26/31] iio: use parity32 in adxrs450 zengzhaoxiu
2016-05-11 9:23 ` [patch V4 27/31] serial: use parity32 in max3100 zengzhaoxiu
2016-06-25 17:25 ` Greg Kroah-Hartman
2016-06-29 14:57 ` [patch V4 27/31] serial: use parity8 " zengzhaoxiu
2016-06-29 16:43 ` Greg KH
2016-06-29 17:25 ` zengzhaoxiu
2016-05-11 9:24 ` [patch V4 28/31] input: use parity8 in elantech zengzhaoxiu
2016-05-11 9:24 ` [patch V4 29/31] ethernet: use parity8 in broadcom/tg3.c zengzhaoxiu
2016-05-11 23:59 ` David Miller
2016-05-11 9:24 ` [patch V4 30/31] crypto: use parity_long is sahara.c zengzhaoxiu
2016-06-29 15:18 ` [patch V4 30/31] crypto: use parity_long in sahara.c zengzhaoxiu
2016-05-11 9:24 ` [patch V4 31/31] edac: use parity8 in amd64_edac.c zengzhaoxiu
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