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| author | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2022-05-08 18:56:57 +0100 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2022-06-14 11:53:18 +0100 |
| commit | 848847702bd10bf0bf547e38adc44c14e9742784 (patch) | |
| tree | 4875532afadb3923a0288f0819cf55b00ccddb71 /drivers/iio/imu | |
| parent | c9a8417a13ed9c81383662fca8a4b89f84d31e78 (diff) | |
| download | linux-848847702bd10bf0bf547e38adc44c14e9742784.tar.bz2 | |
iio: imu: inv_icm42600: Fix alignment for DMA safety
Partial fix for this driver as a second instance was introduced in
a later patch.
____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: a095fadb443b ("iio: imu: inv_icm42600: add gyroscope IIO device")
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/20220508175712.647246-78-jic23@kernel.org
Diffstat (limited to 'drivers/iio/imu')
| -rw-r--r-- | drivers/iio/imu/inv_icm42600/inv_icm42600.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iio/imu/inv_icm42600/inv_icm42600.h b/drivers/iio/imu/inv_icm42600/inv_icm42600.h index c0f5059b13b3..62fedac54e65 100644 --- a/drivers/iio/imu/inv_icm42600/inv_icm42600.h +++ b/drivers/iio/imu/inv_icm42600/inv_icm42600.h @@ -140,7 +140,7 @@ struct inv_icm42600_state { struct inv_icm42600_suspended suspended; struct iio_dev *indio_gyro; struct iio_dev *indio_accel; - uint8_t buffer[2] ____cacheline_aligned; + uint8_t buffer[2] __aligned(IIO_DMA_MINALIGN); struct inv_icm42600_fifo fifo; struct { int64_t gyro; |