[PATCH 5.19 0697/1157] iio: frequency: admv1013: Fix alignment for DMA safety

[Greg Kroah-Hartman]

From: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>

[ Upstream commit b3f3f8d264b9be0cb3e50e89e3f8789a948a43bb ]

____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: da35a7b526d9 ("iio: frequency: admv1013: add support for ADMV1013")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Cc: Antoniu Miclaus <antoniu.miclaus@xxxxxxxxxx>
Acked-by: Nuno Sá <nuno.sa@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20220508175712.647246-69-jic23@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/iio/frequency/admv1013.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/frequency/admv1013.c b/drivers/iio/frequency/admv1013.c
index b0e1f6571afb..ed8167271358 100644
--- a/drivers/iio/frequency/admv1013.c
+++ b/drivers/iio/frequency/admv1013.c
@@ -100,7 +100,7 @@ struct admv1013_state {
 	unsigned int		input_mode;
 	unsigned int		quad_se_mode;
 	bool			det_en;
-	u8			data[3] ____cacheline_aligned;
+	u8			data[3] __aligned(IIO_DMA_MINALIGN);
 };
 
 static int __admv1013_spi_read(struct admv1013_state *st, unsigned int reg,
-- 
2.35.1