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| author | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2022-05-08 20:55:47 +0300 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2022-06-14 13:53:12 +0300 |
| commit | a263456f0e27ec2f00d25119757f4d4bd656b2e9 (patch) | |
| tree | 107cb59d39f7f61b402797fa865a43511dedfad2 /drivers/iio/accel/sca3000.c | |
| parent | a794b34083820ff4131bf43245aeb7030fecf038 (diff) | |
| download | linux-a263456f0e27ec2f00d25119757f4d4bd656b2e9.tar.xz | |
iio: accel: sca3000: Fix alignment for DMA safety
____cacheline_aligned is insufficient guarantee for non-coherent DMA.
Switch to the updated IIO_DMA_MINALIGN definition.
The second alignment marking is left in place to avoid doing more than
the simple fix in this patch.
Fixes: ced5c03d360ae ("staging:iio:accel:sca3000 merge files into one.")
Fixes: 152a6a884ae13 ("staging:iio:accel:sca3000 move to hybrid hard / soft buffer design.")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220508175712.647246-8-jic23@kernel.org
Diffstat (limited to 'drivers/iio/accel/sca3000.c')
| -rw-r--r-- | drivers/iio/accel/sca3000.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/iio/accel/sca3000.c b/drivers/iio/accel/sca3000.c index 08dedee76e46..87c54e41f6cc 100644 --- a/drivers/iio/accel/sca3000.c +++ b/drivers/iio/accel/sca3000.c @@ -167,8 +167,8 @@ struct sca3000_state { int mo_det_use_count; struct mutex lock; /* Can these share a cacheline ? */ - u8 rx[384] ____cacheline_aligned; - u8 tx[6] ____cacheline_aligned; + u8 rx[384] __aligned(IIO_DMA_MINALIGN); + u8 tx[6] __aligned(IIO_DMA_MINALIGN); }; /** |