This is a note to let you know that I've just added the patch titled iio: imu: mpu6050: Fix alignment for DMA safety to the 5.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: iio-imu-mpu6050-fix-alignment-for-dma-safety.patch and it can be found in the queue-5.18 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit a6b9dcbc9c3712d3d78b16740f755c604b9cfe4f Author: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx> Date: Sun May 8 18:56:59 2022 +0100 iio: imu: mpu6050: Fix alignment for DMA safety [ Upstream commit 54e03562bb960e78af050d2e550c28d77642ee44 ] ____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: 6b0cc5dce072 ("iio:imu:inv_mpu6050 Fix dma and ts alignment and data leak issues.") Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx> Acked-by: Jean-Baptiste Maneyrol <jean-baptiste.maneyrol@xxxxxxx> Acked-by: Nuno Sá <nuno.sa@xxxxxxxxxx> Link: https://lore.kernel.org/r/20220508175712.647246-80-jic23@xxxxxxxxxx Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h b/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h index c6aa36ee966a..32b58b797d57 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h @@ -203,7 +203,7 @@ struct inv_mpu6050_state { s32 magn_raw_to_gauss[3]; struct iio_mount_matrix magn_orient; unsigned int suspended_sensors; - u8 data[INV_MPU6050_OUTPUT_DATA_SIZE] ____cacheline_aligned; + u8 data[INV_MPU6050_OUTPUT_DATA_SIZE] __aligned(IIO_DMA_MINALIGN); }; /*register and associated bit definition*/