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authorJonathan Cameron <Jonathan.Cameron@huawei.com>2021-06-13 16:22:55 +0100
committerJonathan Cameron <Jonathan.Cameron@huawei.com>2021-06-14 11:42:41 +0100
commitafe2a789fbf7acd1a05407fc7839cc08d23825e3 (patch)
tree3d9f8a2a4614b8e8ce22704ae85822af017ca8d1 /drivers/iio
parent8f884758966259fa8c50c137ac6d4ce9bb7859db (diff)
downloadlinux-afe2a789fbf7acd1a05407fc7839cc08d23825e3.tar.bz2
iio: adc: hx711: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
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: d3bf60450d47 ("iio: hx711: add triggered buffer support") Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: Andreas Klinger <ak@it-klinger.de> Reviewed-by: Nuno Sá <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20210613152301.571002-3-jic23@kernel.org
Diffstat (limited to 'drivers/iio')
-rw-r--r--drivers/iio/adc/hx711.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/iio/adc/hx711.c b/drivers/iio/adc/hx711.c
index 6a173531d355..f7ee856a6b8b 100644
--- a/drivers/iio/adc/hx711.c
+++ b/drivers/iio/adc/hx711.c
@@ -86,9 +86,9 @@ struct hx711_data {
struct mutex lock;
/*
* triggered buffer
- * 2x32-bit channel + 64-bit timestamp
+ * 2x32-bit channel + 64-bit naturally aligned timestamp
*/
- u32 buffer[4];
+ u32 buffer[4] __aligned(8);
/*
* delay after a rising edge on SCK until the data is ready DOUT
* this is dependent on the hx711 where the datasheet tells a