On 14-03-21 09:32 AM, Tomi Valkeinen wrote: > Hi, > > On 20/03/14 17:16, Paul Gortmaker wrote: >> Any randconfig that sets I2C=m and FB_MB862XX_I2C=y will >> encounter a final link failure that looks like this: > > It compiles fine with I2C=m, FB_MB862XX=m and FB_MB862XX_I2C=y. > >> drivers/built-in.o: In function `mb862xx_i2c_init': >> drivers/video/mb862xx/mb862xx-i2c.c:165: undefined reference to >> `i2c_add_adapter' >> drivers/built-in.o: In function `mb862xx_i2c_exit': >> drivers/video/mb862xx/mb862xx-i2c.c:176: undefined reference to >> `i2c_del_adapter' >> >> Since FB_MB862XX_I2C is a bool and not tristate, simply >> don't offer it at all if core I2C support is not built in. > > FB_MB862XX_I2C is not a driver, it just adds the i2c support to > FB_MB862XX. The relevant thing is whether FB_MB862XX is m or y, so > compiling with: > > I2C=m, FB_MB862XX=y and FB_MB862XX_I2C=y > > will fail.
How would you suggest we fix it then? Perhaps we could simplify the Kconfig space and just get rid of FB_MB862XX_I2C entirely? Is there ever a reason why someone would want it turned off when I2C is present? Paul. -- > >> Reported-by: Jim Davis <[email protected]> >> Reported-by: Fengguang Wu <[email protected]> >> Signed-off-by: Paul Gortmaker <[email protected]> >> >> diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig >> index dade5b7699bc..aefd1b9a3cbd 100644 >> --- a/drivers/video/Kconfig >> +++ b/drivers/video/Kconfig >> @@ -2338,7 +2338,7 @@ endchoice >> >> config FB_MB862XX_I2C >> bool "Support I2C bus on MB862XX GDC" >> - depends on FB_MB862XX && I2C >> + depends on FB_MB862XX && I2C=y >> default y >> help >> Selecting this option adds Coral-P(A)/Lime GDC I2C bus adapter > > This fix is not correct, as it prevents the following, valid, config: > > I2C=m, FB_MB862XX=m and FB_MB862XX_I2C=y > > Tomi > > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
