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| author |   Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2022-05-08 18:56:58 +0100 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2022-06-14 11:53:18 +0100 |
| commit | b0aa05065a0c1d1bffa10923dbc36f7193babbb7 (patch) | |
| tree | 30e290da66f3dcefb6bbd0c3af616d0c322377f0 /drivers/iio/imu | |
| parent | iio: imu: inv_icm42600: Fix alignment for DMA safety (diff) | |
| download | wireguard-linux-b0aa05065a0c1d1bffa10923dbc36f7193babbb7.tar.xz wireguard-linux-b0aa05065a0c1d1bffa10923dbc36f7193babbb7.zip | |
iio: imu: inv_icm42600: Fix alignment for DMA safety in buffer code.
Second fix for this driver due to different introducing patches.
____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: 7f85e42a6c54 ("iio: imu: inv_icm42600: add buffer support in iio devices")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Jean-Baptiste Maneyrol <jmaneyrol@invensense.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/20220508175712.647246-79-jic23@kernel.org
Diffstat (limited to 'drivers/iio/imu')
| -rw-r--r-- | drivers/iio/imu/inv_icm42600/inv_icm42600_buffer.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iio/imu/inv_icm42600/inv_icm42600_buffer.h b/drivers/iio/imu/inv_icm42600/inv_icm42600_buffer.h index de2a3949dcc7..8b85ee333bf8 100644 --- a/drivers/iio/imu/inv_icm42600/inv_icm42600_buffer.h +++ b/drivers/iio/imu/inv_icm42600/inv_icm42600_buffer.h @@ -39,7 +39,7 @@ struct inv_icm42600_fifo { size_t accel; size_t total; } nb; - uint8_t data[2080] ____cacheline_aligned; + uint8_t data[2080] __aligned(IIO_DMA_MINALIGN); }; /* FIFO data packet */ |