From 750b892f6d08a390bd477378fe6162f9ab513f4f Mon Sep 17 00:00:00 2001 From: Jonathan Cameron Date: Sun, 8 May 2022 18:56:56 +0100 Subject: [PATCH] iio: imu: fxos8700: Fix alignment for DMA safety MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit [ Upstream commit c9a8417a13ed9c81383662fca8a4b89f84d31e78 ] ____cacheline_aligned is an insufficient guarantee for non-coherent DMA on platforms with 128 byte cachelines above L1. Switch to the updated IIO_DMA_MINALIGN definition. Fixes: 84e5ddd5c46e ("iio: imu: Add support for the FXOS8700 IMU") Signed-off-by: Jonathan Cameron Cc: Robert Jones Acked-by: Nuno Sá Link: https://lore.kernel.org/r/20220508175712.647246-77-jic23@kernel.org Signed-off-by: Sasha Levin --- drivers/iio/imu/fxos8700_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/imu/fxos8700_core.c b/drivers/iio/imu/fxos8700_core.c index ab288186f36e..423cfe526f2a 100644 --- a/drivers/iio/imu/fxos8700_core.c +++ b/drivers/iio/imu/fxos8700_core.c @@ -167,7 +167,7 @@ struct fxos8700_data { struct regmap *regmap; struct iio_trigger *trig; - __be16 buf[FXOS8700_DATA_BUF_SIZE] ____cacheline_aligned; + __be16 buf[FXOS8700_DATA_BUF_SIZE] __aligned(IIO_DMA_MINALIGN); }; /* Regmap info */