From: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx> If I2C is not compiled, there is no way we should see a call to i2c_verify_client() on a device that is an i2c client. As such, provide a stub to return NULL to resolve an associated build failure. The build is failing with this link error ld: fxls8962af-core.o: in function `fxls8962af_fifo_transfer': fxls8962af-core.c: undefined reference to `i2c_verify_client' Reported-by: Tom Rix <trix@xxxxxxxxxx> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx> Fixes: 68068fad0e1c ("iio: accel: fxls8962af: fix errata bug E3 - I2C burst reads") Cc: Sean Nyekjaer <sean@xxxxxxxxxx> Cc: Wolfram Sang <wsa@xxxxxxxxxx> --- Note the broken patch is only in the IIO/togreg branch at the moment. include/linux/i2c.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/include/linux/i2c.h b/include/linux/i2c.h index e8f2ac8c9c3d..aa52738b9c46 100644 --- a/include/linux/i2c.h +++ b/include/linux/i2c.h @@ -343,7 +343,14 @@ struct i2c_client { }; #define to_i2c_client(d) container_of(d, struct i2c_client, dev) +#if IS_ENABLED(CONFIG_I2C) struct i2c_client *i2c_verify_client(struct device *dev); +#else +static inline struct i2c_client *i2c_verify_client(struct device *dev) +{ + return NULL; +} +#endif struct i2c_adapter *i2c_verify_adapter(struct device *dev); const struct i2c_device_id *i2c_match_id(const struct i2c_device_id *id, const struct i2c_client *client); -- 2.31.1