From: Jonathan Cameron Date: Sun, 8 May 2022 17:56:43 +0000 (+0100) Subject: iio: dac: ti-dac7311: Fix alignment for DMA safety X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=3637c49ed54632d7c221af718d2d7b1d381d4b6e;p=linux.git iio: dac: ti-dac7311: 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: 7a02ef7907d8 ("iio:dac:ti-dac7311 Add driver for Texas Instrument DAC7311") Signed-off-by: Jonathan Cameron Cc: Charles-Antoine Couret Acked-by: Nuno Sá Link: https://lore.kernel.org/r/20220508175712.647246-64-jic23@kernel.org --- diff --git a/drivers/iio/dac/ti-dac7311.c b/drivers/iio/dac/ti-dac7311.c index 4afc411725d9d..7f89d2a52f49c 100644 --- a/drivers/iio/dac/ti-dac7311.c +++ b/drivers/iio/dac/ti-dac7311.c @@ -52,7 +52,7 @@ struct ti_dac_chip { bool powerdown; u8 powerdown_mode; u8 resolution; - u8 buf[2] ____cacheline_aligned; + u8 buf[2] __aligned(IIO_DMA_MINALIGN); }; static u8 ti_dac_get_power(struct ti_dac_chip *ti_dac, bool powerdown)