From: Jonathan Cameron Jonathan.Cameron@huawei.com
[ 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@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 Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/iio/frequency/adrf6780.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
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,