diff options
| author | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2022-05-08 18:55:44 +0100 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2022-06-14 11:53:11 +0100 |
| commit | e1f956a804df9074fb5de557563d153ae25252e7 (patch) | |
| tree | afcc5ab10fe7f4f45d11c7268e34e8d6f9b84c14 /drivers/iio/accel/adxl367.c | |
| parent | 46403dcf3a7cbd24b86f809fd79962f4d6b137c5 (diff) | |
iio: accel: adxl367: Fix alignment for DMA safety
____cacheline_aligned is insufficient guarantee for non-coherent DMA.
Switch to the updated IIO_DMA_MINALIGN definition.
Update comment to reflect that DMA safety may require separate
cachelines.
Fixes: cbab791c5e2a5 ("iio: accel: add ADXL367 driver")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Cosmin Tanislav <demonsingur@gmail.com>
Acked-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220508175712.647246-5-jic23@kernel.org
Diffstat (limited to 'drivers/iio/accel/adxl367.c')
| -rw-r--r-- | drivers/iio/accel/adxl367.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iio/accel/adxl367.c b/drivers/iio/accel/adxl367.c index 72a8c3fb27b9..47feb375b70b 100644 --- a/drivers/iio/accel/adxl367.c +++ b/drivers/iio/accel/adxl367.c @@ -179,7 +179,7 @@ struct adxl367_state { unsigned int fifo_set_size; unsigned int fifo_watermark; - __be16 fifo_buf[ADXL367_FIFO_SIZE] ____cacheline_aligned; + __be16 fifo_buf[ADXL367_FIFO_SIZE] __aligned(IIO_DMA_MINALIGN); __be16 sample_buf; u8 act_threshold_buf[2]; u8 inact_time_buf[2]; |