This is a note to let you know that I've just added the patch titled iio: dac: ad7293: 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-dac-ad7293-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 093aeb64ad94eb309d105a69d46431509d5dcad9 Author: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx> Date: Sun May 8 18:56:36 2022 +0100 iio: dac: ad7293: Fix alignment for DMA safety [ Upstream commit 8482468b30bdb16d4a764f995d7a63d94fa0cf40 ] ____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: 0bb12606c05f ("iio:dac:ad7293: add support for AD7293") Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx> Cc: Antoniu Miclaus <antoniu.miclaus@xxxxxxxxxx> Acked-by: Nuno Sá <nuno.sa@xxxxxxxxxx> Link: https://lore.kernel.org/r/20220508175712.647246-57-jic23@xxxxxxxxxx Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/iio/dac/ad7293.c b/drivers/iio/dac/ad7293.c index 59a38ca4c3c7..06f05750d921 100644 --- a/drivers/iio/dac/ad7293.c +++ b/drivers/iio/dac/ad7293.c @@ -144,7 +144,7 @@ struct ad7293_state { struct regulator *reg_avdd; struct regulator *reg_vdrive; u8 page_select; - u8 data[3] ____cacheline_aligned; + u8 data[3] __aligned(IIO_DMA_MINALIGN); }; static int ad7293_page_select(struct ad7293_state *st, unsigned int reg)