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[v2,06/92] iio: accel: bmi088: Fix alignment for DMA safety

Message ID 20220508175712.647246-7-jic23@kernel.org (mailing list archive)
State Accepted
Headers show
Series IIO: Fix alignment of buffers for DMA | expand

Commit Message

Jonathan Cameron May 8, 2022, 5:55 p.m. UTC 
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>

____cacheline_aligned is insufficient guarantee for non-coherent DMA.
Switch to the updated IIO_DMA_MINALIGN definition.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Nuno Sá <nuno.sa@analog.com>
---
 drivers/iio/accel/bmi088-accel-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/drivers/iio/accel/bmi088-accel-core.c b/drivers/iio/accel/bmi088-accel-core.c
index 8b2728bbcade..00894038987c 100644
--- a/drivers/iio/accel/bmi088-accel-core.c
+++ b/drivers/iio/accel/bmi088-accel-core.c
@@ -124,7 +124,7 @@  struct bmi088_accel_chip_info {
 struct bmi088_accel_data {
 	struct regmap *regmap;
 	const struct bmi088_accel_chip_info *chip_info;
-	u8 buffer[2] ____cacheline_aligned; /* shared DMA safe buffer */
+	u8 buffer[2] __aligned(IIO_DMA_MINALIGN); /* shared DMA safe buffer */
 };
 
 static const struct regmap_range bmi088_volatile_ranges[] = {