From: David Lechner <dlechner@baylibre.com>
Date: Sat, 6 Sep 2025 02:14:06 +0000 (-0400)
Subject: iio: imu: inv_mpu6050: align buffer for timestamp
X-Git-Tag: v6.6.105~37
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fb6a7c1da2072115fe589a737f704b9d0ebfa43f;p=thirdparty%2Fkernel%2Fstable.git

iio: imu: inv_mpu6050: align buffer for timestamp

[ Upstream commit 1d2d8524eaffc4d9a116213520d2c650e07c9cc6 ]

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

Fixes: 0829edc43e0a ("iio: imu: inv_mpu6050: read the full fifo when processing data")
Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250417-iio-more-timestamp-alignment-v1-7-eafac1e22318@baylibre.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
[ Adjust context ]
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c
index d4f9b5d8d28d6..ace3ce4faea73 100644
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c
@@ -52,7 +52,7 @@ irqreturn_t inv_mpu6050_read_fifo(int irq, void *p)
 	u16 fifo_count;
 	u32 fifo_period;
 	s64 timestamp;
-	u8 data[INV_MPU6050_OUTPUT_DATA_SIZE];
+	u8 data[INV_MPU6050_OUTPUT_DATA_SIZE] __aligned(8);
 	int int_status;
 	size_t i, nb;