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[67/92] iio: frequency: adf4371: Fix alignment for DMA safety

Message ID 20220503085935.1533814-68-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State Superseded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: 7f699bd14913 ("iio: frequency: adf4371: Add support for ADF4371 PLL")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---
 drivers/iio/frequency/adf4371.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/drivers/iio/frequency/adf4371.c b/drivers/iio/frequency/adf4371.c
index ecd5e18995ad..edc5d1e8b5d7 100644
--- a/drivers/iio/frequency/adf4371.c
+++ b/drivers/iio/frequency/adf4371.c
@@ -175,7 +175,7 @@  struct adf4371_state {
 	unsigned int mod2;
 	unsigned int rf_div_sel;
 	unsigned int ref_div_factor;
-	u8 buf[10] ____cacheline_aligned;
+	u8 buf[10] __aligned(IIO_ALIGN);
 };
 
 static unsigned long long adf4371_pll_fract_n_get_rate(struct adf4371_state *st,