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[71/92] iio: frequency: adrf6780: Fix alignment for DMA safety

Message ID 20220503085935.1533814-72-jic23@kernel.org (mailing list archive)
State Superseded
Headers show
Series IIO: Fix alignment of buffers for DMA | expand

Commit Message

Jonathan Cameron May 3, 2022, 8:59 a.m. UTC 
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>

____cacheline_aligned is an insufficient guarantee for non-coherent DMA
on platforms with 128 byte cachelines above L1.  Switch to the updated
IIO_ALIGN 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>
---
 drivers/iio/frequency/adrf6780.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/drivers/iio/frequency/adrf6780.c b/drivers/iio/frequency/adrf6780.c
index 8255ffd174f6..788de3b05e3a 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_ALIGN);
 };
 
 static int __adrf6780_spi_read(struct adrf6780_state *st, unsigned int reg,