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iio: core: mark scan_timestamp as __private

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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>
Link: https://patch.msgid.link/20241214191421.94172-5-vassilisamir@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Vasileios Amoiridis 2024-12-14 20:14:21 +01:00 committed by Jonathan Cameron
parent 6d0981f964
commit 9351bbb1b0
3 changed files with 3 additions and 3 deletions
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2
drivers/iio/industrialio-buffer.c
View File

@ -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;

2
include/linux/iio/buffer.h
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@ -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;
}

2
include/linux/iio/iio.h
View File

@ -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;