| From a4654c72b61940190a18ed659b62815c17679448 Mon Sep 17 00:00:00 2001 |
| From: Sasha Levin <sashal@kernel.org> |
| Date: Sun, 13 Jun 2021 16:22:58 +0100 |
| Subject: iio: magn: rm3100: Fix alignment of buffer in |
| iio_push_to_buffers_with_timestamp() |
| MIME-Version: 1.0 |
| Content-Type: text/plain; charset=UTF-8 |
| Content-Transfer-Encoding: 8bit |
| |
| From: Jonathan Cameron <Jonathan.Cameron@huawei.com> |
| |
| [ Upstream commit b8f939fd20690623cb24845a563e7bc1e4a21482 ] |
| |
| 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 an explicit structure is not used, because this buffer is used in |
| a non-trivial way for data repacking. |
| |
| Fixes: 121354b2eceb ("iio: magnetometer: Add driver support for PNI RM3100") |
| Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> |
| Cc: Song Qiang <songqiang1304521@gmail.com> |
| Reviewed-by: Nuno Sรก <nuno.sa@analog.com> |
| Link: https://lore.kernel.org/r/20210613152301.571002-6-jic23@kernel.org |
| Signed-off-by: Sasha Levin <sashal@kernel.org> |
| --- |
| drivers/iio/magnetometer/rm3100-core.c | 3 ++- |
| 1 file changed, 2 insertions(+), 1 deletion(-) |
| |
| diff --git a/drivers/iio/magnetometer/rm3100-core.c b/drivers/iio/magnetometer/rm3100-core.c |
| index 7242897a05e9..720234a91db1 100644 |
| --- a/drivers/iio/magnetometer/rm3100-core.c |
| +++ b/drivers/iio/magnetometer/rm3100-core.c |
| @@ -78,7 +78,8 @@ struct rm3100_data { |
| bool use_interrupt; |
| int conversion_time; |
| int scale; |
| - u8 buffer[RM3100_SCAN_BYTES]; |
| + /* Ensure naturally aligned timestamp */ |
| + u8 buffer[RM3100_SCAN_BYTES] __aligned(8); |
| struct iio_trigger *drdy_trig; |
| |
| /* |
| -- |
| 2.30.2 |
| |
