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Message-ID: <20241101105342.3645018-1-andriy.shevchenko@linux.intel.com>
Date: Fri, 1 Nov 2024 12:53:42 +0200
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Jonathan Cameron <Jonathan.Cameron@...wei.com>,
linux-iio@...r.kernel.org,
linux-kernel@...r.kernel.org
Cc: Jonathan Cameron <jic23@...nel.org>,
Lars-Peter Clausen <lars@...afoo.de>,
Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH v1 1/1] iio: Mark iio_dev::priv member with __private
The member is not supposed to be accessed directly, mark it with
__private to catch the misuses up.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
drivers/iio/industrialio-core.c | 2 +-
include/linux/iio/iio.h | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index 6a6568d4a2cb..4c543490e56c 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -1665,7 +1665,7 @@ struct iio_dev *iio_device_alloc(struct device *parent, int sizeof_priv)
indio_dev = &iio_dev_opaque->indio_dev;
if (sizeof_priv)
- indio_dev->priv = (char *)iio_dev_opaque +
+ ACCESS_PRIVATE(indio_dev, priv) = (char *)iio_dev_opaque +
ALIGN(sizeof(*iio_dev_opaque), IIO_DMA_MINALIGN);
indio_dev->dev.parent = parent;
diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h
index 445d6666a291..5c6682bd4cb9 100644
--- a/include/linux/iio/iio.h
+++ b/include/linux/iio/iio.h
@@ -624,7 +624,7 @@ struct iio_dev {
const struct iio_info *info;
const struct iio_buffer_setup_ops *setup_ops;
- void *priv;
+ void *priv __private;
};
int iio_device_id(struct iio_dev *indio_dev);
@@ -785,7 +785,7 @@ struct iio_dev *iio_device_alloc(struct device *parent, int sizeof_priv);
/* The information at the returned address is guaranteed to be cacheline aligned */
static inline void *iio_priv(const struct iio_dev *indio_dev)
{
- return indio_dev->priv;
+ return ACCESS_PRIVATE(indio_dev, priv);
}
void iio_device_free(struct iio_dev *indio_dev);
--
2.43.0.rc1.1336.g36b5255a03ac
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