| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.10 515/593] iio: adc: at91-sama5d2: Fix buffer alignment in iio_push_to_buffers_with_timestamp() | Date | Mon, 12 Jul 2021 08:11:15 +0200 |
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From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
[ Upstream commit 8f884758966259fa8c50c137ac6d4ce9bb7859db ]
To make code more readable, use a structure to express the channel layout and ensure the timestamp is 8 byte aligned.
Found during an audit of all calls of this function.
Fixes: 5e1a1da0f8c9 ("iio: adc: at91-sama5d2_adc: add hw trigger and buffer support") Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: Eugen Hristev <eugen.hristev@microchip.com> Reviewed-by: Nuno Sá <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20210613152301.571002-2-jic23@kernel.org Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/iio/adc/at91-sama5d2_adc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c index b917a4714a9c..b8139c435a4b 100644 --- a/drivers/iio/adc/at91-sama5d2_adc.c +++ b/drivers/iio/adc/at91-sama5d2_adc.c @@ -403,7 +403,8 @@ struct at91_adc_state { struct at91_adc_dma dma_st; struct at91_adc_touch touch_st; struct iio_dev *indio_dev; - u16 buffer[AT91_BUFFER_MAX_HWORDS]; + /* Ensure naturally aligned timestamp */ + u16 buffer[AT91_BUFFER_MAX_HWORDS] __aligned(8); /* * lock to prevent concurrent 'single conversion' requests through * sysfs. -- 2.30.2
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