[PATCH v2 4/4] iio: core: mark scan_timestamp as __private

[Vasileios Amoiridis <vassilisamir@gmail.com>]

Since there are no more direct accesses to the indio_dev->scan_timestamp
value, it can be marked as __private and use the macro ACCESS_PRIVATE()
in order to access it. Like this, static checkers will be able to inform
in case someone tries to either write to the value, or read its value
directly.

Signed-off-by: Vasileios Amoiridis <vassilisamir@gmail.com>
---
 drivers/iio/industrialio-buffer.c | 2 +-
 include/linux/iio/buffer.h        | 2 +-
 include/linux/iio/iio.h           | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index 2708f87df719..a80f7cc25a27 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -1137,7 +1137,7 @@ static int iio_enable_buffers(struct iio_dev *indio_dev,
 	int ret;
 
 	indio_dev->active_scan_mask = config->scan_mask;
-	indio_dev->scan_timestamp = config->scan_timestamp;
+	ACCESS_PRIVATE(indio_dev, scan_timestamp) = config->scan_timestamp;
 	indio_dev->scan_bytes = config->scan_bytes;
 	iio_dev_opaque->currentmode = config->mode;
 
diff --git a/include/linux/iio/buffer.h b/include/linux/iio/buffer.h
index 418b1307d3f2..3b8d618bb3df 100644
--- a/include/linux/iio/buffer.h
+++ b/include/linux/iio/buffer.h
@@ -37,7 +37,7 @@ int iio_pop_from_buffer(struct iio_buffer *buffer, void *data);
 static inline int iio_push_to_buffers_with_timestamp(struct iio_dev *indio_dev,
 	void *data, int64_t timestamp)
 {
-	if (indio_dev->scan_timestamp) {
+	if (ACCESS_PRIVATE(indio_dev, scan_timestamp)) {
 		size_t ts_offset = indio_dev->scan_bytes / sizeof(int64_t) - 1;
 		((int64_t *)data)[ts_offset] = timestamp;
 	}
diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h
index ae65890d4567..56161e02f002 100644
--- a/include/linux/iio/iio.h
+++ b/include/linux/iio/iio.h
@@ -611,7 +611,7 @@ struct iio_dev {
 	const unsigned long		*available_scan_masks;
 	unsigned int			__private masklength;
 	const unsigned long		*active_scan_mask;
-	bool				scan_timestamp;
+	bool				__private scan_timestamp;
 	struct iio_trigger		*trig;
 	struct iio_poll_func		*pollfunc;
 	struct iio_poll_func		*pollfunc_event;
-- 
2.43.0