linux-kernel - [PATCH v2 1/2] iio: imu: adis16550: align buffers for timestamp

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Message-Id: <20250418-iio-more-timestamp-alignment-v2-1-d6a5d2b1c9fe@baylibre.com>
Date: Fri, 18 Apr 2025 11:17:13 -0500
From: David Lechner <dlechner@...libre.com>
To: Lars-Peter Clausen <lars@...afoo.de>, 
 Michael Hennerich <Michael.Hennerich@...log.com>, 
 Jonathan Cameron <jic23@...nel.org>, 
 Antoniu Miclaus <antoniu.miclaus@...log.com>, 
 Ramona Gradinariu <ramona.gradinariu@...log.com>, 
 Robert Budai <robert.budai@...log.com>, 
 Nuno Sá <nuno.sa@...log.com>, 
 Andreas Klinger <ak@...klinger.de>, 
 Petre Rodan <petre.rodan@...dimension.ro>
Cc: Jonathan Cameron <Jonathan.Cameron@...wei.com>, 
 linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org, 
 David Lechner <dlechner@...libre.com>
Subject: [PATCH v2 1/2] iio: imu: adis16550: align buffers for timestamp

Align the buffers used with iio_push_to_buffers_with_timestamp() to
ensure the s64 timestamp is aligned to 8 bytes.

Fixes: bac4368fab62 ("iio: imu: adis16550: add adis16550 support")
Signed-off-by: David Lechner <dlechner@...libre.com>
---
 drivers/iio/imu/adis16550.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/imu/adis16550.c b/drivers/iio/imu/adis16550.c
index b14ea8937c7f5a2123e4097dc5b8260492044d1b..28f0dbd0226cbea67bc6c87d892f7812f21e9304 100644
--- a/drivers/iio/imu/adis16550.c
+++ b/drivers/iio/imu/adis16550.c
@@ -836,7 +836,7 @@ static irqreturn_t adis16550_trigger_handler(int irq, void *p)
 	u16 dummy;
 	bool valid;
 	struct iio_poll_func *pf = p;
-	__be32 data[ADIS16550_MAX_SCAN_DATA];
+	__be32 data[ADIS16550_MAX_SCAN_DATA] __aligned(8);
 	struct iio_dev *indio_dev = pf->indio_dev;
 	struct adis16550 *st = iio_priv(indio_dev);
 	struct adis *adis = iio_device_get_drvdata(indio_dev);

-- 
2.43.0