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    Subject[PATCH 5.19 0707/1157] iio: imu: inv_icm42600: Fix alignment for DMA safety in buffer code.
    Date
    From: Jonathan Cameron <Jonathan.Cameron@huawei.com>

    [ Upstream commit b0aa05065a0c1d1bffa10923dbc36f7193babbb7 ]

    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
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/iio/imu/inv_icm42600/inv_icm42600_buffer.h | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    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 */
    --
    2.35.1


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