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    Subject[PATCH 5.18 0590/1095] iio: accel: bma220: Fix alignment for DMA safety
    Date
    From: Jonathan Cameron <Jonathan.Cameron@huawei.com>

    [ Upstream commit 38e71240e2ff97184cdcdaf877cf62d3f16678e2 ]

    ____cacheline_aligned is insufficient guarantee for non-coherent DMA.
    Switch to the updated IIO_DMA_MINALIGN definition.

    Fixes: bf2a5600a3ebc ("iio: accel: Add support for Bosch BMA220")
    Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
    Acked-by: Nuno Sá <nuno.sa@analog.com>
    Link: https://lore.kernel.org/r/20220508175712.647246-6-jic23@kernel.org
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/iio/accel/bma220_spi.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/drivers/iio/accel/bma220_spi.c b/drivers/iio/accel/bma220_spi.c
    index 74024d7ce5ac..b6d9ab8e2054 100644
    --- a/drivers/iio/accel/bma220_spi.c
    +++ b/drivers/iio/accel/bma220_spi.c
    @@ -67,7 +67,7 @@ struct bma220_data {
    /* Ensure timestamp is naturally aligned. */
    s64 timestamp __aligned(8);
    } scan;
    - u8 tx_buf[2] ____cacheline_aligned;
    + u8 tx_buf[2] __aligned(IIO_DMA_MINALIGN);
    };

    static const struct iio_chan_spec bma220_channels[] = {
    --
    2.35.1


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