This is a note to let you know that I've just added the patch titled iio: frequency: adrf6780: 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-frequency-adrf6780-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 a78a047014d0465819837955c31859c13df365c7 Author: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx> Date: Sun May 8 18:56:51 2022 +0100 iio: frequency: adrf6780: Fix alignment for DMA safety [ Upstream commit 9a5b11884cb72780cb824cac8aab47094654a84f ] ____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: 63aaf6d06d87 ("iio: frequency: adrf6780: add support for ADRF6780") 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/20220508175712.647246-72-jic23@xxxxxxxxxx Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/iio/frequency/adrf6780.c b/drivers/iio/frequency/adrf6780.c index 8255ffd174f6..21878bad0909 100644 --- a/drivers/iio/frequency/adrf6780.c +++ b/drivers/iio/frequency/adrf6780.c @@ -86,7 +86,7 @@ struct adrf6780_state { bool uc_bias_en; bool lo_sideband; bool vdet_out_en; - u8 data[3] ____cacheline_aligned; + u8 data[3] __aligned(IIO_DMA_MINALIGN); }; static int __adrf6780_spi_read(struct adrf6780_state *st, unsigned int reg,