Hi Mauro, On Wed, Mar 7, 2018 at 6:14 AM, Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxxx> wrote: > Not sure why, but, on ia64, with Linaro's gcc 7.3 compiler, > using #ifdef (CONFIG_I2C) is not OK. Looking at the kbuild report the failure happens when CONFIG_I2C=m. IS_ENABLED() macro takes care of both built-in and module as it will expand to: #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) and that's the reason why IS_ENABLE() fixes the build problem. Regards, Fabio Estevam
