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Subject[PATCH] iio: core: make iio_bus_type const
Now that the driver core can properly handle constant struct bus_type,
move the iio_bus_type variable to be a constant structure as well,
placing it into read-only memory which can not be modified at runtime.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
---
drivers/iio/industrialio-core.c | 2 +-
include/linux/iio/iio.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index e8551a1636ba..9b2877fe8689 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -42,7 +42,7 @@ static DEFINE_IDA(iio_ida);
static dev_t iio_devt;

#define IIO_DEV_MAX 256
-struct bus_type iio_bus_type = {
+const struct bus_type iio_bus_type = {
.name = "iio",
};
EXPORT_SYMBOL(iio_bus_type);
diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h
index 4f89279e531c..e370a7bb3300 100644
--- a/include/linux/iio/iio.h
+++ b/include/linux/iio/iio.h
@@ -669,7 +669,7 @@ DEFINE_GUARD_COND(iio_claim_direct, _try, ({
int iio_device_claim_buffer_mode(struct iio_dev *indio_dev);
void iio_device_release_buffer_mode(struct iio_dev *indio_dev);

-extern struct bus_type iio_bus_type;
+extern const struct bus_type iio_bus_type;

/**
* iio_device_put() - reference counted deallocation of struct device
---
base-commit: 81e8e40ea16329914f78ca1f454d04f570540ca8
change-id: 20240208-bus_cleanup-iio-1e5714e23bb9
Best regards,
--
Ricardo B. Marliere <ricardo@marliere.net>


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