drivers: iio: magnetometer: Fix sparse endianness warnings cast to restricted __be16

commit 69c72ec9c80bbd206c6fac73874d73e69cc623b4 upstream.

Fix the following sparse endianness warnings:

drivers/iio/magnetometer/ak8975.c:716:16: warning: cast to restricted __le16
drivers/iio/magnetometer/ak8975.c:837:19: warning: cast to restricted __le16
drivers/iio/magnetometer/ak8975.c:838:19: warning: cast to restricted __le16
drivers/iio/magnetometer/ak8975.c:839:19: warning: cast to restricted __le16

Signed-off-by: Sandhya Bankar <bankarsandhya512@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/iio/magnetometer/ak8975.c b/drivers/iio/magnetometer/ak8975.c
index af8606c..825369f 100644 (file)
--- a/drivers/iio/magnetometer/ak8975.c
+++ b/drivers/iio/magnetometer/ak8975.c
@@ -690,6 +690,7 @@ static int ak8975_read_axis(struct iio_dev *indio_dev, int index, int *val)
        struct ak8975_data *data = iio_priv(indio_dev);
        const struct i2c_client *client = data->client;
        const struct ak_def *def = data->def;
+       __le16 rval;
        u16 buff;
        int ret;
 
@@ -703,7 +704,7 @@ static int ak8975_read_axis(struct iio_dev *indio_dev, int index, int *val)
 
        ret = i2c_smbus_read_i2c_block_data_or_emulated(
                        client, def->data_regs[index],
-                       sizeof(buff), (u8*)&buff);
+                       sizeof(rval), (u8*)&rval);
        if (ret < 0)
                goto exit;
 
@@ -713,7 +714,7 @@ static int ak8975_read_axis(struct iio_dev *indio_dev, int index, int *val)
        pm_runtime_put_autosuspend(&data->client->dev);
 
        /* Swap bytes and convert to valid range. */
-       buff = le16_to_cpu(buff);
+       buff = le16_to_cpu(rval);
        *val = clamp_t(s16, buff, -def->range, def->range);
        return IIO_VAL_INT;
 
@@ -813,6 +814,7 @@ static void ak8975_fill_buffer(struct iio_dev *indio_dev)
        const struct ak_def *def = data->def;
        int ret;
        s16 buff[8]; /* 3 x 16 bits axis values + 1 aligned 64 bits timestamp */
+       __le16 fval[3];
 
        mutex_lock(&data->lock);
 
@@ -826,17 +828,17 @@ static void ak8975_fill_buffer(struct iio_dev *indio_dev)
         */
        ret = i2c_smbus_read_i2c_block_data_or_emulated(client,
                                                        def->data_regs[0],
-                                                       3 * sizeof(buff[0]),
-                                                       (u8 *)buff);
+                                                       3 * sizeof(fval[0]),
+                                                       (u8 *)fval);
        if (ret < 0)
                goto unlock;
 
        mutex_unlock(&data->lock);
 
        /* Clamp to valid range. */
-       buff[0] = clamp_t(s16, le16_to_cpu(buff[0]), -def->range, def->range);
-       buff[1] = clamp_t(s16, le16_to_cpu(buff[1]), -def->range, def->range);
-       buff[2] = clamp_t(s16, le16_to_cpu(buff[2]), -def->range, def->range);
+       buff[0] = clamp_t(s16, le16_to_cpu(fval[0]), -def->range, def->range);
+       buff[1] = clamp_t(s16, le16_to_cpu(fval[1]), -def->range, def->range);
+       buff[2] = clamp_t(s16, le16_to_cpu(fval[2]), -def->range, def->range);
 
        iio_push_to_buffers_with_timestamp(indio_dev, buff,
                                           iio_get_time_ns(indio_dev));