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| author | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2022-05-08 18:56:59 +0100 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2022-06-14 11:53:18 +0100 |
| commit | 54e03562bb960e78af050d2e550c28d77642ee44 (patch) | |
| tree | 02583c876c93a5429d9484acda98ea356cbb4b97 /drivers/iio/imu | |
| parent | b0aa05065a0c1d1bffa10923dbc36f7193babbb7 (diff) | |
| download | linux-54e03562bb960e78af050d2e550c28d77642ee44.tar.bz2 | |
iio: imu: mpu6050: 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: 6b0cc5dce072 ("iio:imu:inv_mpu6050 Fix dma and ts alignment and data leak issues.")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Jean-Baptiste Maneyrol <jean-baptiste.maneyrol@tdk.com>
Acked-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220508175712.647246-80-jic23@kernel.org
Diffstat (limited to 'drivers/iio/imu')
| -rw-r--r-- | drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h b/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h index 8e14f20b1314..94b54c501ec0 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h @@ -204,7 +204,7 @@ struct inv_mpu6050_state { s32 magn_raw_to_gauss[3]; struct iio_mount_matrix magn_orient; unsigned int suspended_sensors; - u8 data[INV_MPU6050_OUTPUT_DATA_SIZE] ____cacheline_aligned; + u8 data[INV_MPU6050_OUTPUT_DATA_SIZE] __aligned(IIO_DMA_MINALIGN); }; /*register and associated bit definition*/ |