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authorJonathan Cameron <Jonathan.Cameron@huawei.com>2022-05-08 19:56:52 +0200
committerJonathan Cameron <Jonathan.Cameron@huawei.com>2022-06-14 12:53:18 +0200
commitae6eeb534924ecc2afd5a394964fd6de0ca54d39 (patch)
treef8d27e68e2f19d0dd879f1c79a010e59d68cfb6b /drivers/iio/gyro
parentiio: frequency: adrf6780: Fix alignment for DMA safety (diff)
downloadlinux-ae6eeb534924ecc2afd5a394964fd6de0ca54d39.tar.xz
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iio: gyro: adis16080: 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 tag is inaccurate but unlikely anyone will backport this beyond that point so I haven't chased the history futher than 2013. Fixes: 3c80372dae17 ("staging:iio:adis16080: be16 cleanups") Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Acked-by: Nuno Sá <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20220508175712.647246-73-jic23@kernel.org
Diffstat (limited to 'drivers/iio/gyro')
-rw-r--r--drivers/iio/gyro/adis16080.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iio/gyro/adis16080.c b/drivers/iio/gyro/adis16080.c
index acef59d822b1..14b3abf6dce9 100644
--- a/drivers/iio/gyro/adis16080.c
+++ b/drivers/iio/gyro/adis16080.c
@@ -45,7 +45,7 @@ struct adis16080_state {
const struct adis16080_chip_info *info;
struct mutex lock;
- __be16 buf ____cacheline_aligned;
+ __be16 buf __aligned(IIO_DMA_MINALIGN);
};
static int adis16080_read_sample(struct iio_dev *indio_dev,