From 848847702bd10bf0bf547e38adc44c14e9742784 Mon Sep 17 00:00:00 2001 From: Jonathan Cameron Date: Sun, 8 May 2022 18:56:57 +0100 Subject: iio: imu: inv_icm42600: Fix alignment for DMA safety MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Partial fix for this driver as a second instance was introduced in a later patch. ____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: a095fadb443b ("iio: imu: inv_icm42600: add gyroscope IIO device") Signed-off-by: Jonathan Cameron Acked-by: Jean-Baptiste Maneyrol Acked-by: Nuno Sá Link: https://lore.kernel.org/r/20220508175712.647246-78-jic23@kernel.org --- drivers/iio/imu/inv_icm42600/inv_icm42600.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/iio/imu') diff --git a/drivers/iio/imu/inv_icm42600/inv_icm42600.h b/drivers/iio/imu/inv_icm42600/inv_icm42600.h index c0f5059b13b3..62fedac54e65 100644 --- a/drivers/iio/imu/inv_icm42600/inv_icm42600.h +++ b/drivers/iio/imu/inv_icm42600/inv_icm42600.h @@ -140,7 +140,7 @@ struct inv_icm42600_state { struct inv_icm42600_suspended suspended; struct iio_dev *indio_gyro; struct iio_dev *indio_accel; - uint8_t buffer[2] ____cacheline_aligned; + uint8_t buffer[2] __aligned(IIO_DMA_MINALIGN); struct inv_icm42600_fifo fifo; struct { int64_t gyro; -- cgit v1.2.3