[PATCH v1 16/16] iio: st_sensors: Use get_unaligned_be24() and sign_extend32()

Andy Shevchenko
2020-04-21T00:31:45Z

Use these functions instead of open-coding them.

Cc: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
drivers/iio/common/st_sensors/st_sensors_core.c | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c
index 0e35ff06f9af..bfc39ef64718 100644
--- a/drivers/iio/common/st_sensors/st_sensors_core.c
+++ b/drivers/iio/common/st_sensors/st_sensors_core.c
@@ -20,11 +20,6 @@

#include "st_sensors_core.h"

-static inline u32 st_sensors_get_unaligned_le24(const u8 *p)
-{
- return (s32)((p[0] | p[1] << 8 | p[2] << 16) << 8) >> 8;
-}
-
int st_sensors_write_data_with_mask(struct iio_dev *indio_dev,
u8 reg_addr, u8 mask, u8 data)
{
@@ -545,7 +540,7 @@ static int st_sensors_read_axis_data(struct iio_dev *indio_dev,
else if (byte_for_channel == 2)
*data = (s16)get_unaligned_le16(outdata);
else if (byte_for_channel == 3)
- *data = (s32)st_sensors_get_unaligned_le24(outdata);
+ *data = (s32)sign_extend32(get_unaligned_le24(outdata), 23);

st_sensors_free_memory:
kfree(outdata);
--
2.26.1