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    Subject[PATCH 5.18 0592/1095] iio: accel: sca3300: Fix alignment for DMA safety
    Date
    From: Jonathan Cameron <Jonathan.Cameron@huawei.com>

    [ Upstream commit b1d3a806630dbbf3b4d75a2e850adccf4f4439e7 ]

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

    Fixes: 9cc9806e22178 ("iio: accel: Add driver for Murata SCA3300 accelerometer")
    Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
    Reviewed-by: Tomas Melin <tomas.melin@vaisala.com>
    Acked-by: Nuno Sá <nuno.sa@analog.com>
    Link: https://lore.kernel.org/r/20220508175712.647246-9-jic23@kernel.org
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/iio/accel/sca3300.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/drivers/iio/accel/sca3300.c b/drivers/iio/accel/sca3300.c
    index f7ef8ecfd34a..39e0c24364ae 100644
    --- a/drivers/iio/accel/sca3300.c
    +++ b/drivers/iio/accel/sca3300.c
    @@ -115,7 +115,7 @@ struct sca3300_data {
    s16 channels[4];
    s64 ts __aligned(sizeof(s64));
    } scan;
    - u8 txbuf[4] ____cacheline_aligned;
    + u8 txbuf[4] __aligned(IIO_DMA_MINALIGN);
    u8 rxbuf[4];
    };

    --
    2.35.1


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