VisionFive2 Linux kernel

StarFive Tech Linux Kernel for VisionFive (JH7110) boards (mirror)

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author: Jonathan Cameron <Jonathan.Cameron@huawei.com> 2021-05-01 18:01:03 +0100 committer: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2021-07-14 17:07:26 +0200 commit: b9e837d4a7a465507d551ed976d0a1c7af9a33b3 parent: 0a918214b71abab80977662a0336d910c961bdff
Commit Summary:
iio: accel: bma180: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
Diffstat:
1 file changed, 7 insertions, 3 deletions
diff --git a/drivers/iio/accel/bma180.c b/drivers/iio/accel/bma180.c
index a4456ab4fb9d..b8cea42fca1a 100644
--- a/drivers/iio/accel/bma180.c
+++ b/drivers/iio/accel/bma180.c
@@ -164,7 +164,11 @@ struct bma180_data {
 	int scale;
 	int bw;
 	bool pmode;
-	u8 buff[16]; /* 3x 16-bit + 8-bit + padding + timestamp */
+	/* Ensure timestamp is naturally aligned */
+	struct {
+		s16 chan[4];
+		s64 timestamp __aligned(8);
+	} scan;
 };
 
 enum bma180_chan {
@@ -943,12 +947,12 @@ static irqreturn_t bma180_trigger_handler(int irq, void *p)
 			mutex_unlock(&data->mutex);
 			goto err;
 		}
-		((s16 *)data->buff)[i++] = ret;
+		data->scan.chan[i++] = ret;
 	}
 
 	mutex_unlock(&data->mutex);
 
-	iio_push_to_buffers_with_timestamp(indio_dev, data->buff, time_ns);
+	iio_push_to_buffers_with_timestamp(indio_dev, &data->scan, time_ns);
 err:
 	iio_trigger_notify_done(indio_dev->trig);