diff options
| author | Jonathan Cameron | 2022-05-08 18:56:51 +0100 |
|---|---|---|
| committer | Jonathan Cameron | 2022-06-14 11:53:18 +0100 |
| commit | 9a5b11884cb72780cb824cac8aab47094654a84f (patch) | |
| tree | a9c1e8aaee1acfd0d62a3260392c99f81600c88e | |
| parent | f890aaac771bd015c348eddb967b4027e88344c0 (diff) | |
iio: frequency: adrf6780: Fix alignment for DMA safety
____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@huawei.com>
Cc: Antoniu Miclaus <antoniu.miclaus@analog.com>
Acked-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220508175712.647246-72-jic23@kernel.org
| -rw-r--r-- | drivers/iio/frequency/adrf6780.c | 2 |
1 files changed, 1 insertions, 1 deletions
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, |