linux-kernel - [PATCH V3 26/29] iio: use parity32 in adxrs450

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 14 Apr 2016 11:12:10 +0800
From:	zengzhaoxiu@....com
To:	linux-kernel@...r.kernel.org
Cc:	Zhaoxiu Zeng <zhaoxiu.zeng@...il.com>,
	Lars-Peter Clausen <lars@...afoo.de>,
	Michael Hennerich <Michael.Hennerich@...log.com>,
	Jonathan Cameron <jic23@...nel.org>,
	Hartmut Knaack <knaack.h@....de>,
	Peter Meerwald <pmeerw@...erw.net>, linux-iio@...r.kernel.org
Subject: [PATCH V3 26/29] iio: use parity32 in adxrs450

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

Signed-off-by: Zhaoxiu Zeng <zhaoxiu.zeng@...il.com>
---
 drivers/iio/gyro/adxrs450.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/iio/gyro/adxrs450.c b/drivers/iio/gyro/adxrs450.c
index a330d42..307f55b 100644
--- a/drivers/iio/gyro/adxrs450.c
+++ b/drivers/iio/gyro/adxrs450.c
@@ -109,7 +109,7 @@ static int adxrs450_spi_read_reg_16(struct iio_dev *indio_dev,
 	mutex_lock(&st->buf_lock);
 	tx = ADXRS450_READ_DATA | (reg_address << 17);
 
-	if (!(hweight32(tx) & 1))
+	if (!parity32(tx))
 		tx |= ADXRS450_P;
 
 	st->tx = cpu_to_be32(tx);
@@ -145,7 +145,7 @@ static int adxrs450_spi_write_reg_16(struct iio_dev *indio_dev,
 	mutex_lock(&st->buf_lock);
 	tx = ADXRS450_WRITE_DATA | (reg_address << 17) | (val << 1);
 
-	if (!(hweight32(tx) & 1))
+	if (!parity32(tx))
 		tx |= ADXRS450_P;
 
 	st->tx = cpu_to_be32(tx);
-- 
2.5.0