| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.19 201/421] iio: adc: ti-ads8688: Fix alignment of buffer in iio_push_to_buffers_with_timestamp() | Date | Mon, 19 Jul 2021 16:50:12 +0200 |
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From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
[ Upstream commit 61fa5dfa5f52806f5ce37a0ba5712c271eb22f98 ]
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.
Fixes: f214ff521fb1 ("iio: ti-ads8688: Update buffer allocation for timestamps") Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Nuno Sá <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20210613152301.571002-5-jic23@kernel.org Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/iio/adc/ti-ads8688.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/iio/adc/ti-ads8688.c b/drivers/iio/adc/ti-ads8688.c index 7f16c77b99fb..9bcb05897c9d 100644 --- a/drivers/iio/adc/ti-ads8688.c +++ b/drivers/iio/adc/ti-ads8688.c @@ -386,7 +386,8 @@ static irqreturn_t ads8688_trigger_handler(int irq, void *p) { struct iio_poll_func *pf = p; struct iio_dev *indio_dev = pf->indio_dev; - u16 buffer[ADS8688_MAX_CHANNELS + sizeof(s64)/sizeof(u16)]; + /* Ensure naturally aligned timestamp */ + u16 buffer[ADS8688_MAX_CHANNELS + sizeof(s64)/sizeof(u16)] __aligned(8); int i, j = 0; for (i = 0; i < indio_dev->masklength; i++) { -- 2.30.2
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