diff options
| author | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2022-05-08 18:56:33 +0100 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2022-06-14 11:53:16 +0100 |
| commit | c32be7f035ae430ba9c142b03ceb9f935b09ed6b (patch) | |
| tree | ecf57d0a65f118f00ed61e000d70e9d16302a1ac /drivers/iio/dac | |
| parent | b378722a3e9bb51318c0de7eeb4d71f2fcd6987f (diff) | |
| download | linux-stable-c32be7f035ae430ba9c142b03ceb9f935b09ed6b.tar.gz linux-stable-c32be7f035ae430ba9c142b03ceb9f935b09ed6b.tar.bz2 linux-stable-c32be7f035ae430ba9c142b03ceb9f935b09ed6b.zip | |
iio: dac: ad5766: 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: fd9373e41b9b ("iio: dac: ad5766: add driver support for AD5766")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220508175712.647246-54-jic23@kernel.org
Diffstat (limited to 'drivers/iio/dac')
| -rw-r--r-- | drivers/iio/dac/ad5766.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iio/dac/ad5766.c b/drivers/iio/dac/ad5766.c index 43189af2fb1f..899894523752 100644 --- a/drivers/iio/dac/ad5766.c +++ b/drivers/iio/dac/ad5766.c @@ -123,7 +123,7 @@ struct ad5766_state { u32 d32; u16 w16[2]; u8 b8[4]; - } data[3] ____cacheline_aligned; + } data[3] __aligned(IIO_DMA_MINALIGN); }; struct ad5766_span_tbl { |