From: Jonathan Cameron Date: Sun, 8 May 2022 17:56:14 +0000 (+0100) Subject: iio: adc: ti-ads124s08: Fix alignment for DMA safety X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=7df19bd26cc0b85ff997cc9e2aaea712836b5460;p=linux.git iio: adc: ti-ads124s08: 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: e717f8c6dfec ("iio: adc: Add the TI ads124s08 ADC code") Signed-off-by: Jonathan Cameron Acked-by: Nuno Sá Link: https://lore.kernel.org/r/20220508175712.647246-35-jic23@kernel.org --- diff --git a/drivers/iio/adc/ti-ads124s08.c b/drivers/iio/adc/ti-ads124s08.c index 767b3b6348092..64833156c1998 100644 --- a/drivers/iio/adc/ti-ads124s08.c +++ b/drivers/iio/adc/ti-ads124s08.c @@ -106,7 +106,7 @@ struct ads124s_private { * timestamp is maintained. */ u32 buffer[ADS124S08_MAX_CHANNELS + sizeof(s64)/sizeof(u32)] __aligned(8); - u8 data[5] ____cacheline_aligned; + u8 data[5] __aligned(IIO_DMA_MINALIGN); }; #define ADS124S08_CHAN(index) \