From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Date: Sun, 8 May 2022 17:55:48 +0000 (+0100)
Subject: iio: accel: sca3300: Fix alignment for DMA safety
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=b1d3a806630dbbf3b4d75a2e850adccf4f4439e7;p=linux.git

iio: accel: sca3300: Fix alignment for DMA safety

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

Fixes: 9cc9806e22178 ("iio: accel: Add driver for Murata SCA3300 accelerometer")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Tomas Melin <tomas.melin@vaisala.com>
Acked-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220508175712.647246-9-jic23@kernel.org
---

diff --git a/drivers/iio/accel/sca3300.c b/drivers/iio/accel/sca3300.c
index 861f6906beee5..3c4827bfef535 100644
--- a/drivers/iio/accel/sca3300.c
+++ b/drivers/iio/accel/sca3300.c
@@ -196,7 +196,7 @@ struct sca3300_data {
 		s16 channels[4];
 		s64 ts __aligned(sizeof(s64));
 	} scan;
-	u8 txbuf[4] ____cacheline_aligned;
+	u8 txbuf[4] __aligned(IIO_DMA_MINALIGN);
 	u8 rxbuf[4];
 };