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    Subject[PATCH 5.13 637/800] iio: potentiostat: lmp91000: Fix alignment of buffer in iio_push_to_buffers_with_timestamp()
    Date
    From: Jonathan Cameron <Jonathan.Cameron@huawei.com>

    [ Upstream commit 8979b67ec61abc232636400ee8c758a16a73c95f ]

    Add __aligned(8) to ensure the buffer passed to
    iio_push_to_buffers_with_timestamp() is suitable for the naturally
    aligned timestamp that will be inserted.

    Here structure is not used, because this buffer is also used
    elsewhere in the driver.

    Fixes: 67e17300dc1d ("iio: potentiostat: add LMP91000 support")
    Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
    Cc: Matt Ranostay <matt.ranostay@konsulko.com>
    Acked-by: Matt Ranostay <matt.ranostay@konsulko.com>
    Link: https://lore.kernel.org/r/20210501171352.512953-8-jic23@kernel.org
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/iio/potentiostat/lmp91000.c | 4 ++--
    1 file changed, 2 insertions(+), 2 deletions(-)

    diff --git a/drivers/iio/potentiostat/lmp91000.c b/drivers/iio/potentiostat/lmp91000.c
    index 8a9c576616ee..ff39ba975da7 100644
    --- a/drivers/iio/potentiostat/lmp91000.c
    +++ b/drivers/iio/potentiostat/lmp91000.c
    @@ -71,8 +71,8 @@ struct lmp91000_data {

    struct completion completion;
    u8 chan_select;
    -
    - u32 buffer[4]; /* 64-bit data + 64-bit timestamp */
    + /* 64-bit data + 64-bit naturally aligned timestamp */
    + u32 buffer[4] __aligned(8);
    };

    static const struct iio_chan_spec lmp91000_channels[] = {
    --
    2.30.2


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