On Mon, Aug 19, 2013 at 07:59:40PM +0200, Wolfram Sang wrote: [...] > diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c [...] > +#if IS_ENABLED(CONFIG_OF) > +static void of_i2c_register_devices(struct i2c_adapter *adap) > +{ [...] > +} [...] > +#endif /* CONFIG_OF */ Isn't this missing the dummy implementation for !OF. > static int i2c_do_add_adapter(struct i2c_driver *driver, > struct i2c_adapter *adap) > { > @@ -1058,6 +1160,8 @@ static int i2c_register_adapter(struct i2c_adapter *adap) > > exit_recovery: > /* create pre-declared device nodes */ > + of_i2c_register_devices(adap); Alternatively you could remove the of_i2c_register_devices() from the "#ifdef CONFIG_OF" block so that it will always be compiled. You could turn the above into if (IS_ENABLED(CONFIG_OF)) of_i2c_register_devices(adap); and let the compiler throw the static function away if it sees that the condition is always false. Thierry
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