From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Date: Sun, 8 May 2022 17:55:42 +0000 (+0100)
Subject: iio: accel: adxl313: Fix alignment for DMA safety
X-Git-Tag: block-6.0-2022-08-12~26^2~26^2~151
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=f68a0445ee86e48dafbfdea50163ad6fc6dba268;p=linux-block.git

iio: accel: adxl313: Fix alignment for DMA safety

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

Fixes: 636d44633039 ("iio: accel: Add driver support for ADXL313")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220508175712.647246-3-jic23@kernel.org
---

diff --git a/drivers/iio/accel/adxl313_core.c b/drivers/iio/accel/adxl313_core.c
index 9e4193e64765..afeef779e1d0 100644
--- a/drivers/iio/accel/adxl313_core.c
+++ b/drivers/iio/accel/adxl313_core.c
@@ -46,7 +46,7 @@ EXPORT_SYMBOL_NS_GPL(adxl313_writable_regs_table, IIO_ADXL313);
 struct adxl313_data {
 	struct regmap	*regmap;
 	struct mutex	lock; /* lock to protect transf_buf */
-	__le16		transf_buf ____cacheline_aligned;
+	__le16		transf_buf __aligned(IIO_DMA_MINALIGN);
 };
 
 static const int adxl313_odr_freqs[][2] = {