From: Jonathan Cameron Jonathan.Cameron@huawei.com
[ Upstream commit ff08fbc22ab32ccc6690c21b0e5e1d402dcc076f ]
To make code more readable, use a structure to express the channel layout and ensure the timestamp is 8 byte aligned.
Found during an audit of all calls of uses of iio_push_to_buffers_with_timestamp()
Fixes: a244e7b57f0f ("iio: Add driver for AMS/TAOS tcs3414 digital color sensor") Signed-off-by: Jonathan Cameron Jonathan.Cameron@huawei.com Reviewed-by: Andy Shevchenko andy.shevchenko@gmail.com Link: https://lore.kernel.org/r/20210501170121.512209-19-jic23@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/iio/light/tcs3414.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/iio/light/tcs3414.c b/drivers/iio/light/tcs3414.c index 205e5659ce6b..c525420e7c62 100644 --- a/drivers/iio/light/tcs3414.c +++ b/drivers/iio/light/tcs3414.c @@ -56,7 +56,11 @@ struct tcs3414_data { u8 control; u8 gain; u8 timing; - u16 buffer[8]; /* 4x 16-bit + 8 bytes timestamp */ + /* Ensure timestamp is naturally aligned */ + struct { + u16 chans[4]; + s64 timestamp __aligned(8); + } scan; };
#define TCS3414_CHANNEL(_color, _si, _addr) { \ @@ -212,10 +216,10 @@ static irqreturn_t tcs3414_trigger_handler(int irq, void *p) if (ret < 0) goto done;
- data->buffer[j++] = ret; + data->scan.chans[j++] = ret; }
- iio_push_to_buffers_with_timestamp(indio_dev, data->buffer, + iio_push_to_buffers_with_timestamp(indio_dev, &data->scan, iio_get_time_ns(indio_dev));
done: