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[05/92] iio: accel: bma220: Fix alignment for DMA safety

Message ID 20220503085935.1533814-6-jic23@kernel.org (mailing list archive)
State Superseded
Headers show
Series IIO: Fix alignment of buffers for DMA | expand

Commit Message

Jonathan Cameron May 3, 2022, 8:58 a.m. UTC
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>

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

Fixes: bf2a5600a3ebc ("iio: accel: Add support for Bosch BMA220")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---
 drivers/iio/accel/bma220_spi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/drivers/iio/accel/bma220_spi.c b/drivers/iio/accel/bma220_spi.c
index 74024d7ce5ac..219731393be4 100644
--- a/drivers/iio/accel/bma220_spi.c
+++ b/drivers/iio/accel/bma220_spi.c
@@ -67,7 +67,7 @@  struct bma220_data {
 		/* Ensure timestamp is naturally aligned. */
 		s64 timestamp __aligned(8);
 	} scan;
-	u8 tx_buf[2] ____cacheline_aligned;
+	u8 tx_buf[2] __aligned(IIO_ALIGN);
 };
 
 static const struct iio_chan_spec bma220_channels[] = {