From: Jonathan Cameron Date: Sun, 8 May 2022 17:56:59 +0000 (+0100) Subject: iio: imu: mpu6050: Fix alignment for DMA safety X-Git-Tag: v5.18.18~434 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=342da9b8093bc4ed48fdf33f9190157ab5955864;p=thirdparty%2Fkernel%2Fstable.git 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 Acked-by: Jean-Baptiste Maneyrol Acked-by: Nuno Sá Link: https://lore.kernel.org/r/20220508175712.647246-80-jic23@kernel.org Signed-off-by: Sasha Levin --- diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h b/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h index c6aa36ee966a4..32b58b797d573 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*/