enable docker ppp

hc

2023-12-09 95099d4622f8cb224d94e314c7a8e0df60b13f87

 kernel/drivers/dio/dio-driver.c
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@@ -25,7 +25,7 @@
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  *  dio_device_id structure or %NULL if there is no match.
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  */
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-const struct dio_device_id *
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+static const struct dio_device_id *
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 dio_match_device(const struct dio_device_id *ids,
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 		   const struct dio_dev *d)
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 {
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@@ -105,9 +105,9 @@
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  *  @dev: the DIO device structure to match against
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  *  @drv: the &device_driver that points to the array of DIO device id structures to search
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  *
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- *  Used by a driver to check whether a DIO device present in the
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- *  system is in its list of supported devices. Returns the matching
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- *  dio_device_id structure or %NULL if there is no match.
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+ *  Used by the driver core to check whether a DIO device present in the
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+ *  system is in a driver's list of supported devices. Returns 1 if supported,
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+ *  and 0 if there is no match.
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  */
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 static int dio_bus_match(struct device *dev, struct device_driver *drv)
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@@ -137,7 +137,6 @@
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 postcore_initcall(dio_driver_init);
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-EXPORT_SYMBOL(dio_match_device);
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 EXPORT_SYMBOL(dio_register_driver);
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 EXPORT_SYMBOL(dio_unregister_driver);
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 EXPORT_SYMBOL(dio_bus_type);