Hi Arnd, On Fri, Apr 05, 2024 at 04:27:43PM +0200, Arnd Bergmann wrote: > From: Arnd Bergmann <arnd@xxxxxxxx> > > When I2C_MUX is a loadable module but I2C_I801 is built-in, the newly > added notifier function causes a link error: > > x86_64-linux-ld: drivers/i2c/busses/i2c-i801.o: in function `i801_notifier_call': > i2c-i801.c:(.text+0x1f5): undefined reference to `i2c_root_adapter' > > This code is only built if I2C_MUX_GPIO is also enabled, so add a > conditional dependency that allows building the driver as before if the > GPIO part is disabled, but otherwise require the linker dependency at > Kconfig level. > > With the added dependency, the driver cannot be selected by a builtin > ITCO_WDT driver when I2C_MUX_GPIO is a loadable module, so remove > the 'select' statement in that driver as well. This was apparently > never needed at compile-time, and the watchdog driver just needs either > the LPC or the I2C drivers, but never both. > > Configurations that rely on the implied 'select' from the watchdog > driver now need to enable all three. > > Fixes: 71b494e043d2 ("i2c: i801: Call i2c_register_spd for muxed child segments") > Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> thanks for the proposed fix, but Heiner has already submitted a fix for this issue. I'm going to mark this patch as superseeded, if that's OK with you. Thanks, Andi