[PATCH 2/5] iio: pressure: bmp280: Move symbol exports to IIO_BMP280 namespace

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From: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>

Avoid unnecessary pollution of the global symbol namespace by
moving library functions in to a specific namespace and import
that into the drivers that make use of the functions.

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

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
---
 drivers/iio/pressure/bmp280-core.c   | 2 +-
 drivers/iio/pressure/bmp280-i2c.c    | 1 +
 drivers/iio/pressure/bmp280-regmap.c | 4 ++--
 drivers/iio/pressure/bmp280-spi.c    | 1 +
 4 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/iio/pressure/bmp280-core.c b/drivers/iio/pressure/bmp280-core.c
index bf8167f43c56..fe7aa81e7cc9 100644
--- a/drivers/iio/pressure/bmp280-core.c
+++ b/drivers/iio/pressure/bmp280-core.c
@@ -1136,7 +1136,7 @@ int bmp280_common_probe(struct device *dev,
 
 	return devm_iio_device_register(dev, indio_dev);
 }
-EXPORT_SYMBOL(bmp280_common_probe);
+EXPORT_SYMBOL_NS(bmp280_common_probe, IIO_BMP280);
 
 static int bmp280_runtime_suspend(struct device *dev)
 {
diff --git a/drivers/iio/pressure/bmp280-i2c.c b/drivers/iio/pressure/bmp280-i2c.c
index 35045bd92846..bf4a7a617537 100644
--- a/drivers/iio/pressure/bmp280-i2c.c
+++ b/drivers/iio/pressure/bmp280-i2c.c
@@ -68,3 +68,4 @@ module_i2c_driver(bmp280_i2c_driver);
 MODULE_AUTHOR("Vlad Dogaru <vlad.dogaru@xxxxxxxxx>");
 MODULE_DESCRIPTION("Driver for Bosch Sensortec BMP180/BMP280 pressure and temperature sensor");
 MODULE_LICENSE("GPL v2");
+MODULE_IMPORT_NS(IIO_BMP280);
diff --git a/drivers/iio/pressure/bmp280-regmap.c b/drivers/iio/pressure/bmp280-regmap.c
index da136dbadc8f..969698518984 100644
--- a/drivers/iio/pressure/bmp280-regmap.c
+++ b/drivers/iio/pressure/bmp280-regmap.c
@@ -39,7 +39,7 @@ const struct regmap_config bmp180_regmap_config = {
 	.writeable_reg = bmp180_is_writeable_reg,
 	.volatile_reg = bmp180_is_volatile_reg,
 };
-EXPORT_SYMBOL(bmp180_regmap_config);
+EXPORT_SYMBOL_NS(bmp180_regmap_config, IIO_BMP280);
 
 static bool bmp280_is_writeable_reg(struct device *dev, unsigned int reg)
 {
@@ -82,4 +82,4 @@ const struct regmap_config bmp280_regmap_config = {
 	.writeable_reg = bmp280_is_writeable_reg,
 	.volatile_reg = bmp280_is_volatile_reg,
 };
-EXPORT_SYMBOL(bmp280_regmap_config);
+EXPORT_SYMBOL_NS(bmp280_regmap_config, IIO_BMP280);
diff --git a/drivers/iio/pressure/bmp280-spi.c b/drivers/iio/pressure/bmp280-spi.c
index 41f6cc56d229..4cfaf3e869b8 100644
--- a/drivers/iio/pressure/bmp280-spi.c
+++ b/drivers/iio/pressure/bmp280-spi.c
@@ -118,3 +118,4 @@ module_spi_driver(bmp280_spi_driver);
 
 MODULE_DESCRIPTION("BMP280 SPI bus driver");
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(IIO_BMP280);
-- 
2.35.1




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