From: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
____cacheline_aligned is an insufficient guarantee for non-coherent DMA
on platforms with 128 byte cachelines above L1. Switch to the updated
IIO_ALIGN definition.
Fixes: f110f3188e56 ("iio: temperature: Add support for LTC2983")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Cc: Nuno Sá <nuno.sa@xxxxxxxxxx>
---
drivers/iio/temperature/ltc2983.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/iio/temperature/ltc2983.c b/drivers/iio/temperature/ltc2983.c
index 301c3f13fb26..cc90a4abdf3d 100644
--- a/drivers/iio/temperature/ltc2983.c
+++ b/drivers/iio/temperature/ltc2983.c
@@ -200,11 +200,11 @@ struct ltc2983_data {
u8 num_channels;
u8 iio_channels;
/*
- * DMA (thus cache coherency maintenance) requires the
- * transfer buffers to live in their own cache lines.
+ * DMA (thus cache coherency maintenance) may require the
+ * transfer buffers live in their own cache lines.
* Holds the converted temperature
*/
- __be32 temp ____cacheline_aligned;
+ __be32 temp __aligned(IIO_ALIGN);
};
struct ltc2983_sensor {
--
2.36.0
