This is a note to let you know that I've just added the patch titled iio: adc: mxs-lradc: Fix buffer alignment in iio_push_to_buffers_with_timestamp() to the 5.13-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: iio-adc-mxs-lradc-fix-buffer-alignment-in-iio_push_t.patch and it can be found in the queue-5.13 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit d2f31d1b290f32336437fb051571bd8cb181a7ec Author: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx> Date: Sun Jun 13 16:22:56 2021 +0100 iio: adc: mxs-lradc: Fix buffer alignment in iio_push_to_buffers_with_timestamp() [ Upstream commit 6a6be221b8bd561b053f0701ec752a5ed9007f69 ] To make code more readable, use a structure to express the channel layout and ensure the timestamp is 8 byte aligned. Add a comment on why the buffer is the size it is as not immediately obvious. Found during an audit of all calls of this function. Fixes: 6dd112b9f85e ("iio: adc: mxs-lradc: Add support for ADC driver") Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx> Cc: Andreas Klinger <ak@xxxxxxxxxxxxx> Reviewed-by: Nuno Sá <nuno.sa@xxxxxxxxxx> Link: https://lore.kernel.org/r/20210613152301.571002-4-jic23@xxxxxxxxxx Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/iio/adc/mxs-lradc-adc.c b/drivers/iio/adc/mxs-lradc-adc.c index 30e29f44ebd2..c480cb489c1a 100644 --- a/drivers/iio/adc/mxs-lradc-adc.c +++ b/drivers/iio/adc/mxs-lradc-adc.c @@ -115,7 +115,8 @@ struct mxs_lradc_adc { struct device *dev; void __iomem *base; - u32 buffer[10]; + /* Maximum of 8 channels + 8 byte ts */ + u32 buffer[10] __aligned(8); struct iio_trigger *trig; struct completion completion; spinlock_t lock;