This is a note to let you know that I've just added the patch titled
iio: frequency: admv1014: 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-admv1014-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 8c18bf035088c48813ecc5988ee8d52ff04fff1b
Author: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Date: Sun May 8 18:56:49 2022 +0100
iio: frequency: admv1014: Fix alignment for DMA safety
[ Upstream commit a3e38a557a54df0edea791d7eb623515bb86e39a ]
____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: f4eb9ac7842f ("iio: frequency: admv1014: add support for ADMV1014")
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/20220508175712.647246-70-jic23@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/iio/frequency/admv1014.c b/drivers/iio/frequency/admv1014.c
index a7994f8e6b9b..d1ccaa7ed5fe 100644
--- a/drivers/iio/frequency/admv1014.c
+++ b/drivers/iio/frequency/admv1014.c
@@ -127,7 +127,7 @@ struct admv1014_state {
unsigned int quad_se_mode;
unsigned int p1db_comp;
bool det_en;
- u8 data[3] ____cacheline_aligned;
+ u8 data[3] __aligned(IIO_DMA_MINALIGN);
};
static const int mixer_vgate_table[] = {106, 107, 108, 110, 111, 112, 113, 114,
