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| author | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2022-05-08 18:56:56 +0100 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2022-06-14 11:53:18 +0100 |
| commit | c9a8417a13ed9c81383662fca8a4b89f84d31e78 (patch) | |
| tree | 3d1d2607fdb0061e64ad25d51e602c34338fd7f3 /drivers/iio/imu | |
| parent | 3aafe923987cb4a15e16f03c6185ed4b6a78ca00 (diff) | |
| download | linux-c9a8417a13ed9c81383662fca8a4b89f84d31e78.tar.bz2 | |
iio: imu: fxos8700: Fix alignment for DMA safety
____cacheline_aligned is an insufficient guarantee for non-coherent DMA
on platforms with 128 byte cachelines above L1. Switch to the updated
IIO_DMA_MINALIGN definition.
Fixes: 84e5ddd5c46e ("iio: imu: Add support for the FXOS8700 IMU")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Robert Jones <rjones@gateworks.com>
Acked-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220508175712.647246-77-jic23@kernel.org
Diffstat (limited to 'drivers/iio/imu')
| -rw-r--r-- | drivers/iio/imu/fxos8700_core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iio/imu/fxos8700_core.c b/drivers/iio/imu/fxos8700_core.c index ab288186f36e..423cfe526f2a 100644 --- a/drivers/iio/imu/fxos8700_core.c +++ b/drivers/iio/imu/fxos8700_core.c @@ -167,7 +167,7 @@ struct fxos8700_data { struct regmap *regmap; struct iio_trigger *trig; - __be16 buf[FXOS8700_DATA_BUF_SIZE] ____cacheline_aligned; + __be16 buf[FXOS8700_DATA_BUF_SIZE] __aligned(IIO_DMA_MINALIGN); }; /* Regmap info */ |