From a2105d87eb8eb03591515df10102e04a1c9e0e46 Mon Sep 17 00:00:00 2001 From: Jonathan Cameron Date: Sun, 8 May 2022 18:56:18 +0100 Subject: iio: adc: ti-ads8688: Fix alignment for DMA safety MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit ____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: 3e87e7838328 ("iio: adc: Add TI ADS8688") Signed-off-by: Jonathan Cameron Acked-by: Nuno Sá Link: https://lore.kernel.org/r/20220508175712.647246-39-jic23@kernel.org --- drivers/iio/adc/ti-ads8688.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/iio/adc/ti-ads8688.c') diff --git a/drivers/iio/adc/ti-ads8688.c b/drivers/iio/adc/ti-ads8688.c index 708cca0a63be..ef06a897421a 100644 --- a/drivers/iio/adc/ti-ads8688.c +++ b/drivers/iio/adc/ti-ads8688.c @@ -71,7 +71,7 @@ struct ads8688_state { union { __be32 d32; u8 d8[4]; - } data[2] ____cacheline_aligned; + } data[2] __aligned(IIO_DMA_MINALIGN); }; enum ads8688_id { -- cgit