From: Jonathan Cameron Jonathan.Cameron@huawei.com
[ Upstream commit f746ab0bac5b335b09143dcd01db6f9f26d0c9ec ]
____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: a9e9c7153e96 ("iio: adc: add max1117/max1118/max1119 ADC driver") Signed-off-by: Jonathan Cameron Jonathan.Cameron@huawei.com Cc: Akinobu Mita akinobu.mita@gmail.com Acked-by: Nuno Sá nuno.sa@analog.com Link: https://lore.kernel.org/r/20220508175712.647246-26-jic23@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/iio/adc/max1118.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iio/adc/max1118.c b/drivers/iio/adc/max1118.c index a41bc570be21..75ab57d9aef7 100644 --- a/drivers/iio/adc/max1118.c +++ b/drivers/iio/adc/max1118.c @@ -42,7 +42,7 @@ struct max1118 { s64 ts __aligned(8); } scan;
- u8 data ____cacheline_aligned; + u8 data __aligned(IIO_DMA_MINALIGN); };
#define MAX1118_CHANNEL(ch) \