Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 5.19 0702/1157] iio: gyro: adis16130: Fix alignment for DMA safety | Date | Mon, 15 Aug 2022 20:00:58 +0200 |
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From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
[ Upstream commit ff3211b2ba9afac80ceb795d148831dd879b30b7 ]
____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: 8e67875141b2 ("staging:iio:gyro: adis16130 cleanup, move to abi and bug fixes.") Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Acked-by: Nuno Sá <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20220508175712.647246-74-jic23@kernel.org Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/iio/gyro/adis16130.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iio/gyro/adis16130.c b/drivers/iio/gyro/adis16130.c index b9c952e65b55..33cde9e6fca5 100644 --- a/drivers/iio/gyro/adis16130.c +++ b/drivers/iio/gyro/adis16130.c @@ -41,7 +41,7 @@ struct adis16130_state { struct spi_device *us; struct mutex buf_lock; - u8 buf[4] ____cacheline_aligned; + u8 buf[4] __aligned(IIO_DMA_MINALIGN); }; static int adis16130_spi_read(struct iio_dev *indio_dev, u8 reg_addr, u32 *val) -- 2.35.1
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