diff options
| author | Jonathan Cameron | 2022-05-08 18:56:48 +0100 |
|---|---|---|
| committer | Jonathan Cameron | 2022-06-14 11:53:18 +0100 |
| commit | b3f3f8d264b9be0cb3e50e89e3f8789a948a43bb (patch) | |
| tree | 72aca6e134dacee0f30b84c5230baf76fb4990cc /drivers | |
| parent | 0bb5675befe666eeed71ad808426cf2ec1c9a714 (diff) | |
iio: frequency: admv1013: Fix alignment for DMA safety
____cacheline_aligned is an insufficient guarantee for non-coherent DMA
on platforms with 128 byte cachelines above L1. Switch to the updated
IIO_DMA_MINALIGN definition.
Fixes: da35a7b526d9 ("iio: frequency: admv1013: add support for ADMV1013")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Antoniu Miclaus <antoniu.miclaus@analog.com>
Acked-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220508175712.647246-69-jic23@kernel.org
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/iio/frequency/admv1013.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iio/frequency/admv1013.c b/drivers/iio/frequency/admv1013.c index b0e1f6571afb..ed8167271358 100644 --- a/drivers/iio/frequency/admv1013.c +++ b/drivers/iio/frequency/admv1013.c @@ -100,7 +100,7 @@ struct admv1013_state { unsigned int input_mode; unsigned int quad_se_mode; bool det_en; - u8 data[3] ____cacheline_aligned; + u8 data[3] __aligned(IIO_DMA_MINALIGN); }; static int __admv1013_spi_read(struct admv1013_state *st, unsigned int reg, |