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    Subject[PATCH 5.18 0587/1095] iio: accel: adxl313: Fix alignment for DMA safety
    Date
    From: Jonathan Cameron <Jonathan.Cameron@huawei.com>

    [ Upstream commit f68a0445ee86e48dafbfdea50163ad6fc6dba268 ]

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

    Fixes: 636d44633039 ("iio: accel: Add driver support for ADXL313")
    Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
    Acked-by: Nuno Sá <nuno.sa@analog.com>
    Link: https://lore.kernel.org/r/20220508175712.647246-3-jic23@kernel.org
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/iio/accel/adxl313_core.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/drivers/iio/accel/adxl313_core.c b/drivers/iio/accel/adxl313_core.c
    index 9e4193e64765..afeef779e1d0 100644
    --- a/drivers/iio/accel/adxl313_core.c
    +++ b/drivers/iio/accel/adxl313_core.c
    @@ -46,7 +46,7 @@ EXPORT_SYMBOL_NS_GPL(adxl313_writable_regs_table, IIO_ADXL313);
    struct adxl313_data {
    struct regmap *regmap;
    struct mutex lock; /* lock to protect transf_buf */
    - __le16 transf_buf ____cacheline_aligned;
    + __le16 transf_buf __aligned(IIO_DMA_MINALIGN);
    };

    static const int adxl313_odr_freqs[][2] = {
    --
    2.35.1


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