iio:st-sensors: Move exports into IIO_ST_SENSORS namespace

To avoid unnecessary pollution of the global symbol namespace move the
driver core and type specific core exports into their a new namespace
and import that where needed.

For more info see https://lwn.net/Articles/760045/

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Denis Ciocca <denis.ciocca@st.com>
Link: https://lore.kernel.org/r/20220116180535.2367780-14-jic23@kernel.org

20 files changed, 43 insertions, 28 deletions

diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c
index 2ada8d6fb503..5c5da6fdb490 100644
--- a/drivers/iio/accel/st_accel_core.c
+++ b/drivers/iio/accel/st_accel_core.c
@@ -1412,7 +1412,7 @@ const struct st_sensor_settings *st_accel_get_settings(const char *name)
 
 	return &st_accel_sensors_settings[index];
 }
-EXPORT_SYMBOL(st_accel_get_settings);
+EXPORT_SYMBOL_NS(st_accel_get_settings, IIO_ST_SENSORS);
 
 int st_accel_common_probe(struct iio_dev *indio_dev)
 {
@@ -1466,8 +1466,9 @@ int st_accel_common_probe(struct iio_dev *indio_dev)
 
 	return devm_iio_device_register(parent, indio_dev);
 }
-EXPORT_SYMBOL(st_accel_common_probe);
+EXPORT_SYMBOL_NS(st_accel_common_probe, IIO_ST_SENSORS);
 
 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
 MODULE_DESCRIPTION("STMicroelectronics accelerometers driver");
 MODULE_LICENSE("GPL v2");
+MODULE_IMPORT_NS(IIO_ST_SENSORS);
diff --git a/drivers/iio/accel/st_accel_i2c.c b/drivers/iio/accel/st_accel_i2c.c
index 7f5888570e87..96adc4344f4a 100644
--- a/drivers/iio/accel/st_accel_i2c.c
+++ b/drivers/iio/accel/st_accel_i2c.c
@@ -199,3 +199,4 @@ module_i2c_driver(st_accel_driver);
 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
 MODULE_DESCRIPTION("STMicroelectronics accelerometers i2c driver");
 MODULE_LICENSE("GPL v2");
+MODULE_IMPORT_NS(IIO_ST_SENSORS);
diff --git a/drivers/iio/accel/st_accel_spi.c b/drivers/iio/accel/st_accel_spi.c
index b74a1c6d03de..108b63d0146c 100644
--- a/drivers/iio/accel/st_accel_spi.c
+++ b/drivers/iio/accel/st_accel_spi.c
@@ -164,3 +164,4 @@ module_spi_driver(st_accel_driver);
 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
 MODULE_DESCRIPTION("STMicroelectronics accelerometers spi driver");
 MODULE_LICENSE("GPL v2");
+MODULE_IMPORT_NS(IIO_ST_SENSORS);
diff --git a/drivers/iio/common/st_sensors/st_sensors_buffer.c b/drivers/iio/common/st_sensors/st_sensors_buffer.c
index 5f2b1fb95fd7..e2f108ca949c 100644
--- a/drivers/iio/common/st_sensors/st_sensors_buffer.c
+++ b/drivers/iio/common/st_sensors/st_sensors_buffer.c
@@ -76,4 +76,4 @@ st_sensors_get_buffer_element_error:
 
 	return IRQ_HANDLED;
 }
-EXPORT_SYMBOL(st_sensors_trigger_handler);
+EXPORT_SYMBOL_NS(st_sensors_trigger_handler, IIO_ST_SENSORS);
diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c
index eb452d0c423c..fa9bcdf0d190 100644
--- a/drivers/iio/common/st_sensors/st_sensors_core.c
+++ b/drivers/iio/common/st_sensors/st_sensors_core.c
@@ -46,7 +46,7 @@ int st_sensors_debugfs_reg_access(struct iio_dev *indio_dev,
 
 	return 0;
 }
-EXPORT_SYMBOL(st_sensors_debugfs_reg_access);
+EXPORT_SYMBOL_NS(st_sensors_debugfs_reg_access, IIO_ST_SENSORS);
 
 static int st_sensors_match_odr(struct st_sensor_settings *sensor_settings,
 			unsigned int odr, struct st_sensor_odr_avl *odr_out)
@@ -106,7 +106,7 @@ int st_sensors_set_odr(struct iio_dev *indio_dev, unsigned int odr)
 st_sensors_match_odr_error:
 	return err;
 }
-EXPORT_SYMBOL(st_sensors_set_odr);
+EXPORT_SYMBOL_NS(st_sensors_set_odr, IIO_ST_SENSORS);
 
 static int st_sensors_match_fs(struct st_sensor_settings *sensor_settings,
 					unsigned int fs, int *index_fs_avl)
@@ -199,7 +199,7 @@ int st_sensors_set_enable(struct iio_dev *indio_dev, bool enable)
 set_enable_error:
 	return err;
 }
-EXPORT_SYMBOL(st_sensors_set_enable);
+EXPORT_SYMBOL_NS(st_sensors_set_enable, IIO_ST_SENSORS);
 
 int st_sensors_set_axis_enable(struct iio_dev *indio_dev, u8 axis_enable)
 {
@@ -213,7 +213,7 @@ int st_sensors_set_axis_enable(struct iio_dev *indio_dev, u8 axis_enable)
 				axis_enable);
 	return err;
 }
-EXPORT_SYMBOL(st_sensors_set_axis_enable);
+EXPORT_SYMBOL_NS(st_sensors_set_axis_enable, IIO_ST_SENSORS);
 
 static void st_reg_disable(void *reg)
 {
@@ -257,7 +257,7 @@ int st_sensors_power_enable(struct iio_dev *indio_dev)
 
 	return devm_add_action_or_reset(parent, st_reg_disable, pdata->vdd_io);
 }
-EXPORT_SYMBOL(st_sensors_power_enable);
+EXPORT_SYMBOL_NS(st_sensors_power_enable, IIO_ST_SENSORS);
 
 static int st_sensors_set_drdy_int_pin(struct iio_dev *indio_dev,
 					struct st_sensors_platform_data *pdata)
@@ -352,7 +352,7 @@ void st_sensors_dev_name_probe(struct device *dev, char *name, int len)
 	/* The name from the match takes precedence if present */
 	strlcpy(name, match, len);
 }
-EXPORT_SYMBOL(st_sensors_dev_name_probe);
+EXPORT_SYMBOL_NS(st_sensors_dev_name_probe, IIO_ST_SENSORS);
 
 int st_sensors_init_sensor(struct iio_dev *indio_dev,
 					struct st_sensors_platform_data *pdata)
@@ -437,7 +437,7 @@ int st_sensors_init_sensor(struct iio_dev *indio_dev,
 
 	return err;
 }
-EXPORT_SYMBOL(st_sensors_init_sensor);
+EXPORT_SYMBOL_NS(st_sensors_init_sensor, IIO_ST_SENSORS);
 
 int st_sensors_set_dataready_irq(struct iio_dev *indio_dev, bool enable)
 {
@@ -486,7 +486,7 @@ int st_sensors_set_dataready_irq(struct iio_dev *indio_dev, bool enable)
 st_accel_set_dataready_irq_error:
 	return err;
 }
-EXPORT_SYMBOL(st_sensors_set_dataready_irq);
+EXPORT_SYMBOL_NS(st_sensors_set_dataready_irq, IIO_ST_SENSORS);
 
 int st_sensors_set_fullscale_by_gain(struct iio_dev *indio_dev, int scale)
 {
@@ -509,7 +509,7 @@ int st_sensors_set_fullscale_by_gain(struct iio_dev *indio_dev, int scale)
 st_sensors_match_scale_error:
 	return err;
 }
-EXPORT_SYMBOL(st_sensors_set_fullscale_by_gain);
+EXPORT_SYMBOL_NS(st_sensors_set_fullscale_by_gain, IIO_ST_SENSORS);
 
 static int st_sensors_read_axis_data(struct iio_dev *indio_dev,
 				     struct iio_chan_spec const *ch, int *data)
@@ -572,7 +572,7 @@ out:
 
 	return err;
 }
-EXPORT_SYMBOL(st_sensors_read_info_raw);
+EXPORT_SYMBOL_NS(st_sensors_read_info_raw, IIO_ST_SENSORS);
 
 /*
  * st_sensors_get_settings_index() - get index of the sensor settings for a
@@ -599,7 +599,7 @@ int st_sensors_get_settings_index(const char *name,
 
 	return -ENODEV;
 }
-EXPORT_SYMBOL(st_sensors_get_settings_index);
+EXPORT_SYMBOL_NS(st_sensors_get_settings_index, IIO_ST_SENSORS);
 
 /*
  * st_sensors_verify_id() - verify sensor ID (WhoAmI) is matching with the
@@ -632,7 +632,7 @@ int st_sensors_verify_id(struct iio_dev *indio_dev)
 
 	return 0;
 }
-EXPORT_SYMBOL(st_sensors_verify_id);
+EXPORT_SYMBOL_NS(st_sensors_verify_id, IIO_ST_SENSORS);
 
 ssize_t st_sensors_sysfs_sampling_frequency_avail(struct device *dev,
 				struct device_attribute *attr, char *buf)
@@ -654,7 +654,7 @@ ssize_t st_sensors_sysfs_sampling_frequency_avail(struct device *dev,
 
 	return len;
 }
-EXPORT_SYMBOL(st_sensors_sysfs_sampling_frequency_avail);
+EXPORT_SYMBOL_NS(st_sensors_sysfs_sampling_frequency_avail, IIO_ST_SENSORS);
 
 ssize_t st_sensors_sysfs_scale_avail(struct device *dev,
 				struct device_attribute *attr, char *buf)
@@ -678,7 +678,7 @@ ssize_t st_sensors_sysfs_scale_avail(struct device *dev,
 
 	return len;
 }
-EXPORT_SYMBOL(st_sensors_sysfs_scale_avail);
+EXPORT_SYMBOL_NS(st_sensors_sysfs_scale_avail, IIO_ST_SENSORS);
 
 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
 MODULE_DESCRIPTION("STMicroelectronics ST-sensors core");
diff --git a/drivers/iio/common/st_sensors/st_sensors_i2c.c b/drivers/iio/common/st_sensors/st_sensors_i2c.c
index 18bd3c3d99bc..ee95082c7410 100644
--- a/drivers/iio/common/st_sensors/st_sensors_i2c.c
+++ b/drivers/iio/common/st_sensors/st_sensors_i2c.c
@@ -61,7 +61,7 @@ int st_sensors_i2c_configure(struct iio_dev *indio_dev,
 
 	return 0;
 }
-EXPORT_SYMBOL(st_sensors_i2c_configure);
+EXPORT_SYMBOL_NS(st_sensors_i2c_configure, IIO_ST_SENSORS);
 
 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
 MODULE_DESCRIPTION("STMicroelectronics ST-sensors i2c driver");
diff --git a/drivers/iio/common/st_sensors/st_sensors_spi.c b/drivers/iio/common/st_sensors/st_sensors_spi.c
index 7c60050e90dc..63e302c3fbaa 100644
--- a/drivers/iio/common/st_sensors/st_sensors_spi.c
+++ b/drivers/iio/common/st_sensors/st_sensors_spi.c
@@ -113,7 +113,7 @@ int st_sensors_spi_configure(struct iio_dev *indio_dev,
 
 	return 0;
 }
-EXPORT_SYMBOL(st_sensors_spi_configure);
+EXPORT_SYMBOL_NS(st_sensors_spi_configure, IIO_ST_SENSORS);
 
 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
 MODULE_DESCRIPTION("STMicroelectronics ST-sensors spi driver");
diff --git a/drivers/iio/common/st_sensors/st_sensors_trigger.c b/drivers/iio/common/st_sensors/st_sensors_trigger.c
index ab7a5a24fa6e..899b640c0a70 100644
--- a/drivers/iio/common/st_sensors/st_sensors_trigger.c
+++ b/drivers/iio/common/st_sensors/st_sensors_trigger.c
@@ -227,7 +227,7 @@ int st_sensors_allocate_trigger(struct iio_dev *indio_dev,
 
 	return 0;
 }
-EXPORT_SYMBOL(st_sensors_allocate_trigger);
+EXPORT_SYMBOL_NS(st_sensors_allocate_trigger, IIO_ST_SENSORS);
 
 int st_sensors_validate_device(struct iio_trigger *trig,
 			       struct iio_dev *indio_dev)
@@ -239,4 +239,4 @@ int st_sensors_validate_device(struct iio_trigger *trig,
 
 	return 0;
 }
-EXPORT_SYMBOL(st_sensors_validate_device);
+EXPORT_SYMBOL_NS(st_sensors_validate_device, IIO_ST_SENSORS);
diff --git a/drivers/iio/gyro/st_gyro_core.c b/drivers/iio/gyro/st_gyro_core.c
index 201050b76fe5..62172e18d0d8 100644
--- a/drivers/iio/gyro/st_gyro_core.c
+++ b/drivers/iio/gyro/st_gyro_core.c
@@ -472,7 +472,7 @@ const struct st_sensor_settings *st_gyro_get_settings(const char *name)
 
 	return &st_gyro_sensors_settings[index];
 }
-EXPORT_SYMBOL(st_gyro_get_settings);
+EXPORT_SYMBOL_NS(st_gyro_get_settings, IIO_ST_SENSORS);
 
 int st_gyro_common_probe(struct iio_dev *indio_dev)
 {
@@ -518,8 +518,9 @@ int st_gyro_common_probe(struct iio_dev *indio_dev)
 
 	return devm_iio_device_register(parent, indio_dev);
 }
-EXPORT_SYMBOL(st_gyro_common_probe);
+EXPORT_SYMBOL_NS(st_gyro_common_probe, IIO_ST_SENSORS);
 
 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
 MODULE_DESCRIPTION("STMicroelectronics gyroscopes driver");
 MODULE_LICENSE("GPL v2");
+MODULE_IMPORT_NS(IIO_ST_SENSORS);
diff --git a/drivers/iio/gyro/st_gyro_i2c.c b/drivers/iio/gyro/st_gyro_i2c.c
index 163c7ba300c1..8c7af42b6558 100644
--- a/drivers/iio/gyro/st_gyro_i2c.c
+++ b/drivers/iio/gyro/st_gyro_i2c.c
@@ -120,3 +120,4 @@ module_i2c_driver(st_gyro_driver);
 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
 MODULE_DESCRIPTION("STMicroelectronics gyroscopes i2c driver");
 MODULE_LICENSE("GPL v2");
+MODULE_IMPORT_NS(IIO_ST_SENSORS);
diff --git a/drivers/iio/gyro/st_gyro_spi.c b/drivers/iio/gyro/st_gyro_spi.c
index b0023f9b9771..22aaabe48e4a 100644
--- a/drivers/iio/gyro/st_gyro_spi.c
+++ b/drivers/iio/gyro/st_gyro_spi.c
@@ -124,3 +124,4 @@ module_spi_driver(st_gyro_driver);
 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
 MODULE_DESCRIPTION("STMicroelectronics gyroscopes spi driver");
 MODULE_LICENSE("GPL v2");
+MODULE_IMPORT_NS(IIO_ST_SENSORS);
diff --git a/drivers/iio/imu/st_lsm9ds0/st_lsm9ds0_core.c b/drivers/iio/imu/st_lsm9ds0/st_lsm9ds0_core.c
index 9fb06b7cde3c..ae7bc815382f 100644
--- a/drivers/iio/imu/st_lsm9ds0/st_lsm9ds0_core.c
+++ b/drivers/iio/imu/st_lsm9ds0/st_lsm9ds0_core.c
@@ -142,8 +142,9 @@ int st_lsm9ds0_probe(struct st_lsm9ds0 *lsm9ds0, struct regmap *regmap)
 	/* Setup magnetometer device */
 	return st_lsm9ds0_probe_magn(lsm9ds0, regmap);
 }
-EXPORT_SYMBOL_GPL(st_lsm9ds0_probe);
+EXPORT_SYMBOL_NS_GPL(st_lsm9ds0_probe, IIO_ST_SENSORS);
 
 MODULE_AUTHOR("Andy Shevchenko <andriy.shevchenko@linux.intel.com>");
 MODULE_DESCRIPTION("STMicroelectronics LSM9DS0 IMU core driver");
 MODULE_LICENSE("GPL v2");
+MODULE_IMPORT_NS(IIO_ST_SENSORS);
diff --git a/drivers/iio/imu/st_lsm9ds0/st_lsm9ds0_i2c.c b/drivers/iio/imu/st_lsm9ds0/st_lsm9ds0_i2c.c
index 8f205c477e6f..a90138d8b06a 100644
--- a/drivers/iio/imu/st_lsm9ds0/st_lsm9ds0_i2c.c
+++ b/drivers/iio/imu/st_lsm9ds0/st_lsm9ds0_i2c.c
@@ -77,3 +77,4 @@ module_i2c_driver(st_lsm9ds0_driver);
 MODULE_AUTHOR("Andy Shevchenko <andriy.shevchenko@linux.intel.com>");
 MODULE_DESCRIPTION("STMicroelectronics LSM9DS0 IMU I2C driver");
 MODULE_LICENSE("GPL v2");
+MODULE_IMPORT_NS(IIO_ST_SENSORS);
diff --git a/drivers/iio/imu/st_lsm9ds0/st_lsm9ds0_spi.c b/drivers/iio/imu/st_lsm9ds0/st_lsm9ds0_spi.c
index 0ddfa53166af..b743bf3546a7 100644
--- a/drivers/iio/imu/st_lsm9ds0/st_lsm9ds0_spi.c
+++ b/drivers/iio/imu/st_lsm9ds0/st_lsm9ds0_spi.c
@@ -76,3 +76,4 @@ module_spi_driver(st_lsm9ds0_driver);
 MODULE_AUTHOR("Andy Shevchenko <andriy.shevchenko@linux.intel.com>");
 MODULE_DESCRIPTION("STMicroelectronics LSM9DS0 IMU SPI driver");
 MODULE_LICENSE("GPL v2");
+MODULE_IMPORT_NS(IIO_ST_SENSORS);
diff --git a/drivers/iio/magnetometer/st_magn_core.c b/drivers/iio/magnetometer/st_magn_core.c
index 0806a1e65ce4..74435f4a427d 100644
--- a/drivers/iio/magnetometer/st_magn_core.c
+++ b/drivers/iio/magnetometer/st_magn_core.c
@@ -606,7 +606,7 @@ const struct st_sensor_settings *st_magn_get_settings(const char *name)
 
 	return &st_magn_sensors_settings[index];
 }
-EXPORT_SYMBOL(st_magn_get_settings);
+EXPORT_SYMBOL_NS(st_magn_get_settings, IIO_ST_SENSORS);
 
 int st_magn_common_probe(struct iio_dev *indio_dev)
 {
@@ -653,8 +653,9 @@ int st_magn_common_probe(struct iio_dev *indio_dev)
 
 	return devm_iio_device_register(parent, indio_dev);
 }
-EXPORT_SYMBOL(st_magn_common_probe);
+EXPORT_SYMBOL_NS(st_magn_common_probe, IIO_ST_SENSORS);
 
 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
 MODULE_DESCRIPTION("STMicroelectronics magnetometers driver");
 MODULE_LICENSE("GPL v2");
+MODULE_IMPORT_NS(IIO_ST_SENSORS);
diff --git a/drivers/iio/magnetometer/st_magn_i2c.c b/drivers/iio/magnetometer/st_magn_i2c.c
index 7237711fc09b..c5d8c303db4e 100644
--- a/drivers/iio/magnetometer/st_magn_i2c.c
+++ b/drivers/iio/magnetometer/st_magn_i2c.c
@@ -115,3 +115,4 @@ module_i2c_driver(st_magn_driver);
 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
 MODULE_DESCRIPTION("STMicroelectronics magnetometers i2c driver");
 MODULE_LICENSE("GPL v2");
+MODULE_IMPORT_NS(IIO_ST_SENSORS);
diff --git a/drivers/iio/magnetometer/st_magn_spi.c b/drivers/iio/magnetometer/st_magn_spi.c
index 489d4462862f..6ddc4318564a 100644
--- a/drivers/iio/magnetometer/st_magn_spi.c
+++ b/drivers/iio/magnetometer/st_magn_spi.c
@@ -106,3 +106,4 @@ module_spi_driver(st_magn_driver);
 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
 MODULE_DESCRIPTION("STMicroelectronics magnetometers spi driver");
 MODULE_LICENSE("GPL v2");
+MODULE_IMPORT_NS(IIO_ST_SENSORS);
diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
index 26a1ee43d56e..5b93933a2e27 100644
--- a/drivers/iio/pressure/st_pressure_core.c
+++ b/drivers/iio/pressure/st_pressure_core.c
@@ -672,7 +672,7 @@ const struct st_sensor_settings *st_press_get_settings(const char *name)
 
 	return &st_press_sensors_settings[index];
 }
-EXPORT_SYMBOL(st_press_get_settings);
+EXPORT_SYMBOL_NS(st_press_get_settings, IIO_ST_SENSORS);
 
 int st_press_common_probe(struct iio_dev *indio_dev)
 {
@@ -724,8 +724,9 @@ int st_press_common_probe(struct iio_dev *indio_dev)
 
 	return devm_iio_device_register(parent, indio_dev);
 }
-EXPORT_SYMBOL(st_press_common_probe);
+EXPORT_SYMBOL_NS(st_press_common_probe, IIO_ST_SENSORS);
 
 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
 MODULE_DESCRIPTION("STMicroelectronics pressures driver");
 MODULE_LICENSE("GPL v2");
+MODULE_IMPORT_NS(IIO_ST_SENSORS);
diff --git a/drivers/iio/pressure/st_pressure_i2c.c b/drivers/iio/pressure/st_pressure_i2c.c
index 1939e999a427..7035777fd988 100644
--- a/drivers/iio/pressure/st_pressure_i2c.c
+++ b/drivers/iio/pressure/st_pressure_i2c.c
@@ -120,3 +120,4 @@ module_i2c_driver(st_press_driver);
 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
 MODULE_DESCRIPTION("STMicroelectronics pressures i2c driver");
 MODULE_LICENSE("GPL v2");
+MODULE_IMPORT_NS(IIO_ST_SENSORS);
diff --git a/drivers/iio/pressure/st_pressure_spi.c b/drivers/iio/pressure/st_pressure_spi.c
index d6fc954e28f8..bfab8e7fb061 100644
--- a/drivers/iio/pressure/st_pressure_spi.c
+++ b/drivers/iio/pressure/st_pressure_spi.c
@@ -118,3 +118,4 @@ module_spi_driver(st_press_driver);
 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
 MODULE_DESCRIPTION("STMicroelectronics pressures spi driver");
 MODULE_LICENSE("GPL v2");
+MODULE_IMPORT_NS(IIO_ST_SENSORS);