From: Jonathan Cameron Jonathan.Cameron@huawei.com
[ Upstream commit 2386c0f8c5b740873a4b9126c3706601b127fe22 ]
____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: 24ddb0e4bba4 ("iio: Add AS3935 lightning sensor support") Signed-off-by: Jonathan Cameron Jonathan.Cameron@huawei.com Cc: Matt Ranostay mranostay@gmail.com Acked-by: Nuno Sá nuno.sa@analog.com Link: https://lore.kernel.org/r/20220508175712.647246-87-jic23@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/iio/proximity/as3935.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iio/proximity/as3935.c b/drivers/iio/proximity/as3935.c index 67891ce2bd09..ebc95cf8f5f4 100644 --- a/drivers/iio/proximity/as3935.c +++ b/drivers/iio/proximity/as3935.c @@ -65,7 +65,7 @@ struct as3935_state { u8 chan; s64 timestamp __aligned(8); } scan; - u8 buf[2] ____cacheline_aligned; + u8 buf[2] __aligned(IIO_DMA_MINALIGN); };
static const struct iio_chan_spec as3935_channels[] = {