From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Himanshu Jha To: jic23@kernel.org Cc: lars@metafoo.de, Michael.Hennerich@analog.com, pmeerw@pmeerw.net, gregkh@linuxfoundation.org, linux-iio@vger.kernel.org, devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org, daniel.baluta@gmail.com, 21cnbao@gmail.com, Himanshu Jha Subject: [PATCH v2 6/9] Staging: iio: accel: adis16201: Use sign_extend32 function Date: Sat, 17 Mar 2018 01:36:23 +0530 Message-Id: <1521230786-18155-7-git-send-email-himanshujha199640@gmail.com> In-Reply-To: <1521230786-18155-1-git-send-email-himanshujha199640@gmail.com> References: <1521230786-18155-1-git-send-email-himanshujha199640@gmail.com> List-ID: Use sign_extned32() for 32 bit sign extending rather than hard coding. Signed-off-by: Himanshu Jha --- v2: -no change in this patch. drivers/staging/iio/accel/adis16201.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/staging/iio/accel/adis16201.c b/drivers/staging/iio/accel/adis16201.c index 97150ea..298bf90 100644 --- a/drivers/staging/iio/accel/adis16201.c +++ b/drivers/staging/iio/accel/adis16201.c @@ -173,9 +173,8 @@ static int adis16201_read_raw(struct iio_dev *indio_dev, ret = adis_read_reg_16(st, addr, &val16); if (ret) return ret; - val16 &= (1 << bits) - 1; - val16 = (s16)(val16 << (16 - bits)) >> (16 - bits); - *val = val16; + + *val = sign_extend32(val16, bits - 1); return IIO_VAL_INT; } -- 2.7.4