On 04/11/15 07:54, Bharat Kumar Gogada wrote: >>> Without #ifdefs if we compile driver for legacy, MSI structures will not be >> available and we get compile time error. >> >> Sorry for nitpicking but at least can we use elegant version of #ifdefs .i.e. #if >> IS_ENABLED() here ? >> > Since IS_ENABLED() is checked at runtime, compile time error would come for legacy. You're seriously misguided. IS_ENABLED() is specifically designed *not* to be checked at runtime, but instead to use the compiler optimization phase to get rid of code sections at compile time. M. -- Jazz is not dead. It just smells funny... -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html